Download - HO Parameter Huawei
Handover Data l Basic Handover Parameters l HO Control l Cell HO Data l Concentric Data l Filter/Penalty Data l Emergency HO Data l UTRAN FDD HO Data l UTRAN TDD HO Data l Fast HO Parameters l Enhance dual band data l 2G BA2 Table l UTRAN FDD CELL BA2 l UTRAN TDD CELL BA2
Parent topic: Cell Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Basic Handover Parameters l HO Control Switch l TA HO Watch Time(Num of MR)(0.5s) l TA HO Valid Time(0.5s) l BQ HO Watch Time(0.5s) l BQ HO Valid Time(0.5s) l HCS HO Watch Time(0.5s) l HCS HO Valid Time(0.5s) l Interfere HO Static Time(0.5s) l Interfere HO Valid Time(0.5s) l Better Cell Handover Enable l Better Cell HO Watch Time(s) l Better Cell HO Valid Time(s) l IntraCell AMR TCHF-TCHH Ho Allowed l IntraCell AMR TCHF-TCHH Traffic Threshold l IntraCell TCHF-TCHH Ho Duration(s) l IntraCell TCHF-TCHH Ho Period(s) l IntraCell AMR TCHF-TCHH Ho Pathloss Adjust Step l IntraCell AMR TCHF-TCHH Ho ATCB Adjust Step l IntraCell AMR TCHF-TCHH Ho Pathloss Threshold l IntraCell TCHF-TCHH Pathloss Offset Overlay l IntraCell AMR TCHF-TCHH Ho ATCB Threshold l IntraCell TCHF-TCHH ATCB Offset Overlay l IntraCell AMR TCHF-TCHH Ho Qual. Threshold l IntraCell TCHF-TCHH Ho Stat Time(s) l IntraCell TCHF-TCHH Ho Last Time(s) l IntraCell AMR TCHH-TCHF Traffic Threshold l IntraCell AMR TCHH-TCHF Qual Ho Allowed l IntraCell TCHH-TCHF Ho Duration(s) l IntraCell AMR TCHH-TCHF Ho ATCB Threshold
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l IntraCell TCHH-TCHF ATCB Offset Overlay l IntraCell AMR TCHH-TCHF Ho Pathloss Threshold l IntraCell TCHH-TCHF Pathloss Offset Overlay l IntraCell AMR TCHH-TCHF Ho Qual. Threshold l IntraCell TCHH-TCHF Ho Stat Time(s) l IntraCell TCHH-TCHF Ho Last Time(s) l IntraCell Non-AMR TCHF-TCHH Ho Allowed l IntraCell Non-AMR TCHF-TCHH Traffic Threshold l IntraCell Non-AMR TCHF-TCHH Ho Pathloss Adjust Step l IntraCell Non-AMR TCHF-TCHH Ho ATCB Adjust Step l IntraCell Non-AMR TCHF-TCHH Ho Pathloss Threshold l IntraCell Non-AMR TCHF-TCHH Ho ATCB Threshold l IntraCell Non-AMR TCHF-TCHH Ho Qual. Threshold l IntraCell Non-AMR TCHH-TCHF Traffic Threshold l IntraCell Non-AMR TCHH-TCHF Qual. Ho Allowed l IntraCell Non-AMR TCHH-TCHF Ho ATCB Threshold l IntraCell Non-AMR TCHH-TCHF Ho Pathloss Threshold l IntraCell Non-AMR TCHH-TCHF Ho Qual. Threshold l Inter-RAT Out BSC Handover Enable l Inter-RAT In BSC Handover Enable l Inter-RAT Cell Reselection Enable l Pathloss Ho. Enable l Co-BSC/MSC Adj l SDCCH HO Allowed l Intracell HO Allowed l Intracell F-H HO Allowed l Load HO Allowed l MS Fast Moving HO Allowed l Rx_Level_Drop HO Allowed l PBGT HO Allowed l Level HO Allowed l Edge Handover Allowed l BQ HO Allowed l TA HO Allowed l Concentric Circles HO Allowed l Interference HO Allowed l Edge HO UL RX_LEV Threshold l Edge HO DL RX_LEV Threshold l Edge HO Watch Time(s) l Edge HO Valid Time(s) l Edge HO Watch Time(0.5s) l Edge HO Valid Time(0.5s) l Edge HO AdjCell Watch Time(s) l Edge HO AdjCell Valid Time(s) l Edge HO AdjCell Watch Time(0.5s) l Edge HO AdjCell Valid Time(0.5s) l Layer HO Watch Time(s) l Layer HO Valid Time(s) l PBGT Watch Time(s) l PBGT Valid Time(s) l Intracell F-H HO Stat Time(s) l Intracell F-H HO Last Time(s) l F2H HO Threshold l H2F HO Threshold
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l Inter-layer HO Threshold l Inter-layer HO Hysteresis l Min UP Power on HO Candidate Cell l Min DL Power on HO Candidate Cell l Quick Handover Enable l TIGHT BCCH HO Watch Time(s) l TIGHT BCCH HO Valid Time(s) l ATCBHoSwitch l Enhanced Concentric Allowed
Parent topic: Handover Data
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HO Control Switch
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
TA HO Watch Time(Num of MR)(0.5s)
Parameter Name HO Control Switch
Description This parameter specifies whether HO Algorithm I or HO Algorithm II is valid.
GUI Value Range [HO Algorithm I, HO Algorithm II]
Default Value HO Algorithm I
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
HO Algorithm I
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name TA HO Watch Time(Num of MR)(0.5s)
Description The P/N criterion must be met for triggering a TA handover. That is, the
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Parent topic: Basic Handover Parameters
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TA HO Valid Time(0.5s)
TA handover can be triggered only if P measurement reports among N measurement reports meet the triggering conditions. Every 0.48s a measurement report is submitted. Therefore, the unit is 0.5s.
This parameter corresponds to N in the P/N criterion.
GUI Value Range [1,16]
Default Value 1
Unit Seconds
Step 0.5s
Modification Rules None
Configuration Policy
None
Recommended Value
1
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name TA HO Valid Time(0.5s)
Description The P/N criterion must be met for triggering a TA handover. That is, the TA handover can be triggered only if P measurement reports among N measurement reports meet the triggering conditions. Measurement reports are submitted every 0.48s. Therefore, the unit here is set to 0.5s.
This parameter corresponds to P in the P/N criterion.
GUI Value Range [1,16]
Default Value 1
Unit Seconds
Step 0.5s
Modification Rules None
Configuration None
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Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
BQ HO Watch Time(0.5s)
Parent topic: Basic Handover Parameters
Policy
Recommended Value
1
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name BQ HO Watch Time(0.5s)
Description The P/N criterion must be met for triggering a BQ handover. That is, the BQ handover can be triggered only if P measurement reports among N measurement reports meet the triggering conditions. Measurement reports are submitted every 0.48s. Therefore, the unit here is set to 0.5s.
This parameter corresponds to N in the P/N criterion.
GUI Value Range [1,16]
Default Value 1
Unit Seconds
Step 0.5s
Modification Rules None
Configuration Policy
None
Recommended Value
1
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
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BQ HO Valid Time(0.5s)
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
HCS HO Watch Time(0.5s)
Parameter Name BQ HO Valid Time(0.5s)
Description The P/N criterion must be met for triggering a BQ handover. That is, the BQ handover can be triggered only if P measurement reports among N measurement reports meet the triggering conditions. Measurement reports are submitted every 0.48s. Therefore, the unit here is set to 0.5s.
This parameter corresponds to P in the P/N criterion.
GUI Value Range [1,16]
Default Value 1
Unit Seconds
Step 0.5s
Modification Rules None
Configuration Policy
None
Recommended Value
1
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name HCS HO Watch Time(0.5s)
Description The P/N criterion must be met for triggering a fast movement handover from a micro cell to a macro cell. That is, such a handover can be triggered only if P measurement reports among N measurement reports meet the triggering conditions. Measurement reports are submitted every 0.48s. Therefore, the unit here is set to 0.5s.
This parameter corresponds to N in the P/N criterion.
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Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
HCS HO Valid Time(0.5s)
GUI Value Range [1,16]
Default Value 3
Unit Seconds
Step 0.5s
Modification Rules None
Configuration Policy
None
Recommended Value
3
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name HCS HO Valid Time(0.5s)
Description The P/N criterion must be met for triggering a fast movement handover from a micro cell to a macro cell. That is, such a handover can be triggered only if P measurement reports among N measurement reports meet the triggering conditions. Measurement reports are submitted every 0.48s. Therefore, the unit here is set to 0.5s.
This parameter corresponds to P in the P/N criterion.
GUI Value Range [1,16]
Default Value 2
Unit Seconds
Step 0.5s
Modification Rules None
Configuration Policy
None
Recommended Value
2
Parameter None
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Parent topic: Basic Handover Parameters
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Interfere HO Static Time(0.5s)
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Relationship
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name Interfere HO Static Time(0.5s)
Description The P/N criterion must be met for triggering an interference handover. That is, the interference handover can be triggered only if P measurement reports among N measurement reports meet the triggering conditions. Measurement reports are submitted every 0.48s. Therefore, the unit here is set to 0.5s.
This parameter corresponds to N in the P/N criterion.
GUI Value Range [1,16]
Default Value 3
Unit Seconds
Step 0.5s
Modification Rules None
Configuration Policy
None
Recommended Value
3
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
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Interfere HO Valid Time(0.5s)
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Better Cell Handover Enable
Parameter Name Interfere HO Valid Time(0.5s)
Description The P/N criterion must be met for triggering an interference handover. That is, the interference handover can be triggered only if P measurement reports among N measurement reports meet the triggering conditions. Measurement reports are submitted every 0.48s. Therefore, the unit here is set to 0.5s.
This parameter corresponds to P in the P/N criterion.
GUI Value Range [1,16]
Default Value 2
Unit Seconds
Step 0.5s
Modification Rules None
Configuration Policy
None
Recommended Value
2
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Better Cell Handover Enable
Description This parameter specifies whether to enable the better cell handover algorithm.
Yes: permitted; No: not permitted
GUI Value Range [No, Yes]
Default Value Yes
Unit None
Step -
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Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Better Cell HO Watch Time(s)
Modification Rules None
Configuration Policy
None
Recommended Value
Yes
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name Better Cell HO Watch Time(s)
Description The P/N criterion must be met for triggering a better cell handover. That is, such a handover can be triggered only if the triggering conditions are met for P times in N times.
This parameter corresponds to N in the P/N criterion.
GUI Value Range [1,16]
Default Value 3
Unit Seconds
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
3
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
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Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Better Cell HO Valid Time(s)
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
IntraCell AMR TCHF-TCHH Ho Allowed
Parameter Name Better Cell HO Valid Time(s)
Description The P/N criterion must be met for triggering a better cell handover. That is, such a handover can be triggered only if the triggering conditions are met for P times in N times.
This parameter corresponds to P in the P/N criterion.
GUI Value Range [1,16]
Default Value 2
Unit Seconds
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
2
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell AMR TCHF-TCHH Ho Allowed
Description This parameter specifies whether the BSC initiates an AMR TCHF-TCHH load handover.
GUI Value Range [No, Yes]
Default Value No
Unit None
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Parent topic: Basic Handover Parameters
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IntraCell AMR TCHF-TCHH Traffic Threshold
Step -
Modification Rules None
Configuration Policy
If this parameter is set to Yes, the AMR TCHF-TCHH handover algorithm is enabled and an AMR call can be handed over from TCHF to TCHH to relieve network congestion.
If this parameter is set to No, the AMR TCHF-TCHH handover algorithm is disabled and an AMR call cannot be handed over from TCHF to TCHH. Thus, network congestion cannot be relieved through TCHF-TCHH handover.
Recommended Value
None
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell AMR TCHF-TCHH Traffic Threshold
Description When the load of a cell exceeds this threshold, the BSC initiates an AMR TCHF-TCHH handover.
When the load of the network exceeds this threshold, some calls may be handed over from TCHF to TCHH.
GUI Value Range [0,100]
Default Value 75
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, many calls cannot be handed over from TCHF to TCHH when the load of the network increases in a short time. Thus, network congestion cannot be relieved in time.
If this parameter is set to a too small value, some calls are handed over
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Parent topic: Basic Handover Parameters
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IntraCell TCHF-TCHH Ho Duration(s)
from TCHF to TCHH even when there is no risk of congestion, which leads to a drop in the MOS.
Recommended Value
75
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell TCHF-TCHH Ho Duration(s)
Description If the load of a cell exceeds the threshold, the BSC hands over all the qualified calls in the cell from TCHF to TCHH during the time specified by this parameter.
GUI Value Range [0,600]
Default Value 5
Unit Seconds
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too small value, the duration of an AMR TCHF-TCHH handover is short after the handover is triggered. Thus, few MSs can be handed over from TCHF to TCHH, and network congestion cannot be relieved in time.
If this parameter is set to a too great value, the duration of an AMR TCHF-TCHH handover is long after the handover is triggered. Thus, even the MSs on the edge of the cell are handed over from TCHF to TCHH, and the handover quality deteriorates.
Recommended Value
5
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
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Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
IntraCell TCHF-TCHH Ho Period(s)
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
IntraCell AMR TCHF-TCHH Ho Pathloss Adjust Step
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell TCHF-TCHH Ho Period(s)
Description The value range of this parameter is the same as that of IntraCell TCHF-TCHH Ho Duration(s), and the value of this parameter must be smaller than that of IntraCell TCHF-TCHH Ho Duration(s).
GUI Value Range [0,600]
Default Value 1
Unit Seconds
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too small value, the handover zone is enlarged in a short time, and thus many MSs are handed over from TCHF to TCHH.
If this parameter is set to a too great value, the handover zone is enlarged slowly and it takes a long time to initiate a TCHF-TCHH handover. Thus, network congestion cannot be relieved in time.
Recommended Value
1
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
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Parent topic: Basic Handover Parameters
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IntraCell AMR TCHF-TCHH Ho ATCB Adjust Step
Parameter Name IntraCell AMR TCHF-TCHH Ho Pathloss Adjust Step
Description This parameter, along with the IntraCell AMR TCHF-TCHH Ho Pathloss Adjust Step and the time elapsing after the TCHF-TCHH handover, determines the current pass loss offset, which is used for selecting users for TCHF-TCHH handover.
GUI Value Range [0,255]
Default Value 5
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
5
Parameter Relationship
Path loss offset = (Time elapsing after the TCHF-TCHH handover/IntraCell TCHF-TCHH Ho Period(s) + 1) x IntraCell AMR TCHF-TCHH Ho Pathloss Adjust Step
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell AMR TCHF-TCHH Ho ATCB Adjust Step
Description This parameter, along with the IntraCell TCHF-TCHH Ho Period(s) and the time elapsing after the TCHF-TCHH handover is triggered, determines the current ATCB offset, which is used for selecting users for TCHF-TCHH handover.
GUI Value Range [0,255]
Default Value 3
Unit None
Step -
Modification Rules None
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Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
IntraCell AMR TCHF-TCHH Ho Pathloss Threshold
Configuration Policy
None
Recommended Value
3
Parameter Relationship
ATCB offset = (Time elapsing after the TCHF-TCHH handover/IntraCell TCHF-TCHH Ho Period(s) + 1) x IntraCell AMR TCHF-TCHH Ho ATCB Adjust Step
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell AMR TCHF-TCHH Ho Pathloss Threshold
Description This parameter, along with the IntraCell TCHF-TCHH Ho Period(s), time elapsing after the TCHF-TCHH handover is triggered, and IntraCell AMR TCHF-TCHH Ho Pathloss Adjust Step, determines the current pass loss.
GUI Value Range [0,255]
Default Value 100
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
100
Parameter Relationship
If the path loss of an MS < IntraCell AMR TCHF-TCHH Ho Pathloss Threshold + Path loss offset), then the MS meets the requirement of TCHF-TCHH handover for path loss. Here, Path loss offset = (Time elapsing after the TCHF-TCHH handover/IntraCell TCHF-TCHH Ho Period(s) + 1)/IntraCell AMR TCHF-TCHH Ho Pathloss Adjust Step.
BSC Feature None
Parameter Class Parameters About Radio Resources
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Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
IntraCell TCHF-TCHH Pathloss Offset Overlay
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
IntraCell AMR TCHF-TCHH Ho ATCB Threshold
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell TCHF-TCHH Pathloss Offset Overlay
Description This parameter specifies the difference of pass loss between the overlaid subcell and the underlaid subcell.
GUI Value Range [0,255]
Default Value 10
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
10
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell AMR TCHF-TCHH Ho ATCB Threshold
Description If the ATCB of an AMR full-rate call is equal to or higher than this threshold, the call meets a condition for AMR TCHF-TCHH handover.
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Parent topic: Basic Handover Parameters
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IntraCell TCHF-TCHH ATCB Offset Overlay
GUI Value Range [0,255]
Default Value 20
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
20
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell TCHF-TCHH ATCB Offset Overlay
Description This parameter specifies the ATCB difference between the overlaid subcell and the underlaid subcell.
GUI Value Range [0,255]
Default Value 20
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
20
Parameter Relationship
None
BSC Feature None
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Parent topic: Basic Handover Parameters
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IntraCell AMR TCHF-TCHH Ho Qual. Threshold
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
IntraCell TCHF-TCHH Ho Stat Time(s)
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell AMR TCHF-TCHH Ho Qual. Threshold
Description This parameter specifies the quality threshold for AMR TCHF-TCHH handover.
GUI Value Range [0,7]
Default Value 0
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
0
Parameter Relationship
If the receive quality level of an MS < IntraCell AMR TCHF-TCHH Ho Qual. Threshold, the MS meets the requirement of TCHF-TCHH handover for the receive quality. You must determine both the uplink receive quality and downlink receive quality when you use this parameter.
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell TCHF-TCHH Ho Stat Time(s)
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Parent topic: Basic Handover Parameters
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IntraCell TCHF-TCHH Ho Last Time(s)
Description During the time specified by this parameter, a TCHF-TCHH handover is triggered if the IntraCell TCHF-TCHH Ho Last Time(s) of a call meets the triggering conditions.
This parameter is used along with the IntraCell TCHF-TCHH Ho Last Time(s). They are equivalent to N in the P/N criterion.
GUI Value Range [0,16]
Default Value 3
Unit Seconds
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, it takes a long time to make a handover decision and respond the handover request. If this parameter is set to a too small value, there is no enough time to make a handover decision, which may lead to a misjudgment.
Recommended Value
3
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell TCHF-TCHH Ho Last Time(s)
Description During the time specified by this parameter, a TCHF-TCHH handover is triggered if the IntraCell TCHF-TCHH Ho Last Time(s) of a call meets the triggering conditions.
This parameter is equivalent to the values of P in P/N criterion.
GUI Value Range [0,16]
Default Value 2
Unit Seconds
Step -
Modification Rules None
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Parent topic: Basic Handover Parameters
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IntraCell AMR TCHH-TCHF Traffic Threshold
Configuration Policy
If this parameter is set to a too great value, it takes a long time to make a handover decision and respond the handover request. If this parameter is set to a too small value, there is no enough time to make a handover decision, which may lead to a misjudgment.
Recommended Value
2
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell AMR TCHH-TCHF Traffic Threshold
Description When the load of a cell is lower than this threshold, the BSC initiates an AMR TCHH-TCHF handover.
When the load of the network is lower than this threshold, the BSC initiates an AMR TCHH-TCHF handover. If the value of this parameter is too small, TCHH calls exist when the load of the network is light and thus the MOS may be decreased.
GUI Value Range [0,100]
Default Value 15
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, an AMR TCHH-TCHF handover is triggered only when the network is overloaded, which may again lead to a risk of network congestion.
Recommended Value
15
Parameter Relationship
None
BSC Feature None
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Parent topic: Basic Handover Parameters
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IntraCell AMR TCHH-TCHF Qual Ho Allowed
Parent topic: Basic Handover Parameters
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IntraCell TCHH-TCHF Ho Duration(s)
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell AMR TCHH-TCHF Qual Ho Allowed
Description This parameter specifies whether to allow an AMR TCHH-TCHF handover due to quality.
GUI Value Range [No, Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set to Yes, a call can be handed over from TCHH to TCHF when the quality of the call is bad.
If this parameter is set to No, a call of bad quality cannot be handed over from TCHH to TCHF. Thus, the quality of the call cannot be improved.
Recommended Value
No
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell TCHH-TCHF Ho Duration(s)
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Parent topic: Basic Handover Parameters
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IntraCell AMR TCHH-TCHF Ho ATCB Threshold
Description If the load of a cell exceeds the threshold, the BSC hands over all the qualified calls in the cell from TCHH to TCHF during the time specified by this parameter.
GUI Value Range [0,600]
Default Value 5
Unit Seconds
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
5
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell AMR TCHH-TCHF Ho ATCB Threshold
Description If the ATCB of an AMR full-rate call is lower than this threshold, the call meets a condition for AMR TCHH-TCHF handover.
The greater the ATCB value, the shorter the distance between the MS and the cell center.
GUI Value Range [0,255]
Default Value 4
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, only an MS close to the cell center can be assigned TCHHs. Thus, timeslots are wasted, and network
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IntraCell TCHH-TCHF ATCB Offset Overlay
congestion cannot be relieved in time.
If this parameter is set to a too small value, an MS of bad quality on the cell edge cannot be handed over from TCHH to TCHF. Thus, the quality of the call cannot be improved.
Recommended Value
4
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell TCHH-TCHF ATCB Offset Overlay
Description This parameter specifies the ATCB difference between the overlaid subcell and the underlaid subcell.
This parameter, along with the IntraCell AMR TCHH-TCHF Ho ATCB Threshold, determines whether a condition for deciding a TCHH-TCHF handover is met.
GUI Value Range [0,255]
Default Value 20
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, only an MS close to the overlaid subcell can be assigned TCHHs. Thus, timeslots are wasted.
If this parameter is set to a too small value, an MS of bad quality on the edge of the overlaid subcell cannot be handed over from TCHH to TCHF. Thus, the quality of the call cannot be improved.
Recommended Value
20
Parameter None
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IntraCell AMR TCHH-TCHF Ho Pathloss Threshold
Parent topic: Basic Handover Parameters
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Relationship
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell AMR TCHH-TCHF Ho Pathloss Threshold
Description When the path loss of an AMR full-rate call is higher than this threshold, the call meets a condition for AMR TCHH-TCHF handover.
This parameter, along with the IntraCell AMR TCHH-TCHF Ho ATCB Threshold and IntraCell AMR TCHF-TCHH Ho Qual. Threshold, determines whether to trigger an AMR TCHH-TCHF handover.
GUI Value Range [0,255]
Default Value 108
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
108
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
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IntraCell TCHH-TCHF Pathloss Offset Overlay
Parent topic: Basic Handover Parameters
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IntraCell AMR TCHH-TCHF Ho Qual. Threshold
Parameter Name IntraCell TCHH-TCHF Pathloss Offset Overlay
Description This parameter specifies the difference of pass loss between the overlaid subcell and the underlaid subcell.
This parameter, along with the IntraCell AMR TCHH-TCHF Ho Pathloss Threshold, determines whether a condition for deciding a TCHH-TCHF handover is met.
GUI Value Range [0,255]
Default Value 10
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, only an MS close to the center of the overlaid subcell can be assigned TCHHs. Thus, timeslots are wasted, and network congestion cannot be relieved in time.
If this parameter is set to a too small value, an MS of bad quality on the edge of the overlaid subcell cannot be handed over from TCHH to TCHF. Thus, the quality of the call cannot be improved.
Recommended Value
10
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell AMR TCHH-TCHF Ho Qual. Threshold
Description This parameter specifies the quality threshold for AMR TCHH-TCHF
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IntraCell TCHH-TCHF Ho Stat Time(s)
handover.
This parameter is one of the triggering conditions. When the MS receive quality is higher than the receive quality threshold of AMR TCHH-TCHF handover, the AMR TCHH-TCHF handover is triggered. 0-7: represents the eight levels of receive quality.
The meanings of levels 0-7 are as follows:
Level 0: BER smaller than 0.2%
Level 1: BER ranging from 0.2% to 0.4%
Level 2: BER ranging from 0.4% to 0.8%
Level 3: BER ranging from 0.8% to 1.6%
Level 4: BER ranging from 1.6% to 3.2%
Level 5: BER ranging from 3.2% to 6.4%
Level 6: BER ranging from 6.4% to 12.8%
Level 7: BER larger than 12.8%
GUI Value Range [0,7]
Default Value 3
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
3
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter can be configured only when HO Control Switch is set to HO Algorithm II; this parameter is invalid when HO Control Switch is set to HO Algorithm I.
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IntraCell TCHH-TCHF Ho Last Time(s)
Parameter Name IntraCell TCHH-TCHF Ho Stat Time(s)
Description This parameter indicates that if the IntraCell TCHH-TCHF Ho Last Time meets the conditions for triggering AMR TCHF-TCHH handover within the IntraCell TCHF-TCHH Ho Stat. Time, the AMR TCHF-TCHH switchover is triggered.
This parameter, used with IntraCell TCHH-TCHF Ho Last Time(s), equals the N values defined in the P/N criterion. If the IntraCell TCHF-TCHH Ho Last Time meets the conditions for triggering AMR TCHF-TCHH handover within the IntraCell TCHF-TCHH Ho Stat. Time, the AMR TCHF-TCHH handover is triggered.
GUI Value Range [1,16]
Default Value 3
Unit Seconds
Step -
Modification Rules None
Configuration Policy
If this parameter is set too large and thus the MS status is viewed for a long time, the AMR TCHH-TCHF handover cannot be performed immediately and the speech quality unnecessarily deteriorates.
If this parameter is set too small and thus the MS status is viewed for a short time, the AMR TCHH-TCHF handover might incur a wrong decision.
Recommended Value
3
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter can be configured only when HO Control Switch is set to HO Algorithm II; this parameter is invalid when HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell TCHH-TCHF Ho Last Time(s)
Description This parameter indicates that if the IntraCell TCHH-TCHF Ho Last Time meets the conditions for triggering AMR TCHF-TCHH handover within the IntraCell TCHF-TCHH Ho Stat. Time, the AMR TCHF-TCHH switchover is triggered.
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IntraCell Non-AMR TCHF-TCHH Ho Allowed
This parameter, used with IntraCell TCHH-TCHF Ho Stat Time(s), equals the P values defined in the P/N criterion. If the IntraCell TCHF-TCHH Ho Last Time meets the conditions for triggering AMR TCHF-TCHH handover within the IntraCell TCHF-TCHH Ho Stat. Time, the AMR TCHF-TCHH handover is triggered.
GUI Value Range [1,16]
Default Value 2
Unit Seconds
Step -
Modification Rules None
Configuration Policy
If this parameter is set too large, the MS takes a longer time to meet the conditions for triggering the AMR TCHH-TCHF handover. As a result, the AMR TCHH-TCHF handover cannot be performed immediately and the speech quality unnecessarily deteriorates.
If this parameter is set too small, the MS takes a shorter time to meet the conditions for triggering the AMR TCHH-TCHF handover. As a result, the AMR TCHH-TCHF handover might incur a wrong decision.
Recommended Value
2
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter can be configured only when HO Control Switch is set to HO Algorithm II; this parameter is invalid when HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell Non-AMR TCHF-TCHH Ho Allowed
Description This parameter specifies whether the non-AMR TCHF-TCHH handover is allowed.
GUI Value Range [No, Yes]
Default Value No
Unit None
Step -
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IntraCell Non-AMR TCHF-TCHH Traffic Threshold
Modification Rules None
Configuration Policy
If this parameter is set to Yes, the AMR TCHF-TCHH handover algorithm is valid, the FR and EFR services can be handed over to HR services, and the AMR TCHF-TCHH handover can alleviate network congestion.
If this parameter is set to No, the AMR TCHF-TCHH handover algorithm is invalid, the FR and EFR services cannot be handed over to HR services, and the AMR TCHF-TCHH handover fails to alleviate network congestion.
Recommended Value
No
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter can be configured only when HO Control Switch is set to HO Algorithm II; this parameter is invalid when HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell Non-AMR TCHF-TCHH Traffic Threshold
Description When the cell load is equal to or greater than this threshold, the BSC enables the non-AMR TCHF-TCHH handover.
When the network load is greater than this threshold, the BSC triggers the TCHF-TCHH handover.
GUI Value Range [0,100]
Default Value 85
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set too large, the TCHF-TCHH handover is enabled only when the network is heavily loaded. If traffic is concentrated, the TCHF-TCHH handover starts late and therefore many MSs cannot be handed over to half-rate services within a short time. As a result, the network congestion cannot be alleviated.
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IntraCell Non-AMR TCHF-TCHH Ho Pathloss Adjust Step
If this parameter is set too small and the TCHF-TCHH handover is enabled when the network is lightly loaded, the call will be handed over to half-rate services, which causes unnecessary decrease in the MOS of the MS.
Recommended Value
85
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter can be configured only when HO Control Switch is set to HO Algorithm II; this parameter is invalid when HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell Non-AMR TCHF-TCHH Ho Pathloss Adjust Step
Description This parameter, together with IntraCell TCHF-TCHH Ho Period, determines the path loss offset. Path loss offset = (TCHF-TCHH handover duration/IntraCell TCHF-TCHH Ho Period +1) x IntraCell AMR TCHF-TCHH Ho Pathloss Adjust Step If MS path loss < path loss threshold + path loss offset, you can infer that the MS meets Intracell TCHF-TCHH Ho Passloss Threshold.
GUI Value Range [0,255]
Default Value 1
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set too large, the handover area quickly expands within a short time, which causes many MSs to enable the TCHF-TCHH handover.
If this parameter is set too small, the handover area slowly expands and therefore the MSs cannot immediately enable the TCHF-TCHH handover. As a result, the network congestion cannot be alleviated.
Recommended Value
1
Parameter None
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IntraCell Non-AMR TCHF-TCHH Ho ATCB Adjust Step
Relationship
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter can be configured only when HO Control Switch is set to HO Algorithm II; this parameter is invalid when HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell Non-AMR TCHF-TCHH Ho ATCB Adjust Step
Description This parameter, together with IntraCell TCHF-TCHH Ho Period, determines the value of ATCB offset. ATCB offset = (TCHF-TCHH handover duration/IntraCell TCHF-TCHH Ho Period + 1) x IntraCell AMR TCHF-TCHH Ho ATCB Adjust Step If MS ATCB > ATCB threshold - ATCB offset, you can infer that the MS meets the ATCB threshold.
GUI Value Range [0,255]
Default Value 2
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set too large, the handover area quickly expands within a short time, which causes many MSs to enable the TCHF-TCHH handover.
If this parameter is set too small, the handover area slowly expands and therefore the MSs cannot immediately enable the TCHF-TCHH handover. As a result, the network congestion cannot be alleviated.
Recommended Value
2
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter can be configured only when HO Control Switch is set to HO Algorithm II; this parameter is invalid when HO Control Switch is set to HO Algorithm I.
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IntraCell Non-AMR TCHF-TCHH Ho Pathloss Threshold
Parent topic: Basic Handover Parameters
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IntraCell Non-AMR TCHF-TCHH Ho ATCB Threshold
Parameter Name IntraCell Non-AMR TCHF-TCHH Ho Pathloss Threshold
Description If the non-AMR full-rate speech path loss is smaller than or equal to this threshold, the MS meets the conditions for non-AMR TCHF-TCHH handover.
If MS path loss < path loss threshold + path loss offset, you can infer that the MS meets the path loss threshold.
GUI Value Range [0,255]
Default Value 95
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set too large, the MSs at the edge of a cell are handed over to half-rate services and thus the speech quality deteriorates.
If this parameter is set too small, only the MSs at the center of a cell are handed over to half-rate services and thus the network congestion cannot be alleviated.
Recommended Value
95
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter can be configured only when HO Control Switch is set to HO Algorithm II; this parameter is invalid when HO Control Switch is set to HO Algorithm I.
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IntraCell Non-AMR TCHF-TCHH Ho Qual. Threshold
Parameter Name IntraCell Non-AMR TCHF-TCHH Ho ATCB Threshold
Description If the non-AMR full-rate speech ATCB is larger than or equal to this threshold, the MS meets the conditions for non-AMR TCHF-TCHH handover.
If MS ATCB > ATCB threshold - ATCB offset, you can infer that the MS meets the ATCB threshold.
GUI Value Range [0,255]
Default Value 30
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set too large, only the MSs at the center of a cell are handed over to half-rate services and thus the network congestion cannot be alleviated.
If this parameter is set too small, the MSs at the edge of a cell are handed over to half-rate services and thus the speech quality deteriorates.
Recommended Value
30
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter can be configured only when HO Control Switch is set to HO Algorithm II; this parameter is invalid when HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell Non-AMR TCHF-TCHH Ho Qual. Threshold
Description If the MS receive quality is smaller than the receive quality threshold, you can infer that the MS meets the receive quality threshold.
GUI Value Range [0,7]
Default Value 0
Unit None
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IntraCell Non-AMR TCHH-TCHF Traffic Threshold
Step -
Modification Rules None
Configuration Policy
If this parameter is set too large, the MSs that have poor speech quality at full rate meet the handover conditions but have the risk of being handed over to half-rate services with equally poor speech quality.
If this parameter is set too small, it is difficult for the MSs to meet the handover conditions and thus the network congestion cannot be alleviated.
Recommended Value
0
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter can be configured only when HO Control Switch is set to HO Algorithm II; this parameter is invalid when HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell Non-AMR TCHH-TCHF Traffic Threshold
Description When the cell load is equal to or smaller than this threshold, the BSC enables the non-AMR TCHH-TCHF handover.
When the network load is smaller than this threshold, the BSC hand over all half-rate MSs to full-rate services.
GUI Value Range [0,100]
Default Value 25
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set too large, the TCHH-TCHF handover is triggered when the network is heavily loaded; therefore, the network load changes greatly and the network might be congested again.
If this parameter is set too small, the TCHH-TCHF handover is triggered when the network is lightly loaded, which causes unnecessary decrease
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IntraCell Non-AMR TCHH-TCHF Qual. Ho Allowed
in the MOS of the MS.
Recommended Value
25
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter can be configured only when HO Control Switch is set to HO Algorithm II; this parameter is invalid when HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell Non-AMR TCHH-TCHF Qual. Ho Allowed
Description This parameter specifies whether to allow the non-AMR TCHH-TCHF handover triggered by the quality problem.
GUI Value Range [No, Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set to Yes, the TCHH-TCHF quality handover is enabled and the poor-quality TCHH MSs can be handed over to TCHFs to ensure speech quality.
If this parameter is set to No, the TCHH-TCHF quality handover is disabled and the poor-quality TCHH MSs cannot be handed over to TCHFs to ensure speech quality.
Recommended Value
No
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter can be configured only when HO Control Switch is set to HO Algorithm II; this parameter is invalid when HO Control Switch is
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IntraCell Non-AMR TCHH-TCHF Ho ATCB Threshold
Parent topic: Basic Handover Parameters
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IntraCell Non-AMR TCHH-TCHF Ho Pathloss Threshold
set to HO Algorithm I.
Parameter Name IntraCell Non-AMR TCHH-TCHF Ho ATCB Threshold
Description If the non-AMR full-rate speech ATCB is smaller than or equal to this threshold, the MS meets the conditions for non-AMR TCHF-TCHH handover.
GUI Value Range [0,255]
Default Value 14
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
14
Parameter Relationship
When the ATCB of the MS is smaller than the ATCB threshold, the MS meets the conditions for TCHH-TCHF handover. This parameter, together with the path loss threshold and receive quality threshold, determines the TCHH-TCHF handover.
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter can be configured only when HO Control Switch is set to HO Algorithm II; this parameter is invalid when HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell Non-AMR TCHH-TCHF Ho Pathloss Threshold
Description If the non-AMR full-rate speech path loss is larger than or equal to this
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Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
IntraCell Non-AMR TCHH-TCHF Ho Qual. Threshold
threshold, the MS meets the conditions for non-AMR TCHF-TCHH handover.
When the MS path loss is larger than the path loss threshold, the MS meets the conditions for TCHH-TCHF handover. This parameter, together with the ATCB threshold and receive quality threshold, determines the TCHH-TCHF handover.
GUI Value Range [0,255]
Default Value 103
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set too large, the MSs at the edge of a cell cannot meet the conditions for TCHH-TCHF handover and still stay in TCHHs, which causes unnecessary deterioration of speech quality.
If this parameter is set too small, only the MSs at the center of a cell can be handed over to TCHHs and thus the network congestion cannot be alleviated.
Recommended Value
103
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter can be configured only when HO Control Switch is set to HO Algorithm II; this parameter is invalid when HO Control Switch is set to HO Algorithm I.
Parameter Name IntraCell Non-AMR TCHH-TCHF Ho Qual. Threshold
Description This parameter specifies the quality threshold for non-AMR TCHH-TCHF handover.
If the MS receive quality is higher than the receive quality threshold, the MS meets the conditions for TCHH-TCHF handover.
GUI Value Range [0,7]
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Parent topic: Basic Handover Parameters
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Inter-RAT Out BSC Handover Enable
Parent topic: Basic Handover Parameters
Default Value 2
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
2
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter can be configured only when HO Control Switch is set to HO Algorithm II; this parameter is invalid when HO Control Switch is set to HO Algorithm I.
Parameter Name Inter-RAT Out BSC Handover Enable
Description This parameter determines whether the handover from 2G cells to 3G cells is allowed.
GUI Value Range [No,Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
None
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Inter-RAT In BSC Handover Enable
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Inter-RAT Cell Reselection Enable
Parameter Name Inter-RAT In BSC Handover Enable
Description This parameter determines whether the handover from 3G cells to 2G cells is allowed.
GUI Value Range [No,Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
None
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Inter-RAT Cell Reselection Enable
Description This parameter determines whether the reselection from 2G cells to 3G cells is allowed.
GUI Value Range [No,Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
None
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Parent topic: Basic Handover Parameters
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Pathloss Ho. Enable
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Co-BSC/MSC Adj
Recommended Value
None
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Pathloss Ho. Enable
Description This parameter specifies whether cells are sorted by path loss in the better cell handover algorithm.
GUI Value Range [No,Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
No
Parameter Relationship
None
BSC Feature handover algorithm
Parameter Class Parameters About Radio Resources
Caution This parameter can be configured only when HO Control Switch is set to HO Algorithm II; this parameter is invalid when HO Control Switch is set to HO Algorithm I.
Parameter Name Co-BSC/MSC Adj
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Parent topic: Basic Handover Parameters
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SDCCH HO Allowed
Description This parameter specifies whether to adjust the sequence of candidate cells. After the sequence is adjusted, the handover within the same BSC/MSC takes priority.
GUI Value Range [No,Yes]
Default Value Yes
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set to Yes, the target cell to which the MS is handed over may not be the cell with the best signal quality.
Recommended Value
Yes
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name SDCCH HO Allowed
Description This parameter specifies whether a handover between signaling channels is enabled.
GUI Value Range [No,Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
When the authentication and ciphering procedures are enabled on the existing network, this parameter can be set to Yes.
Recommended Value
No
Parameter Relationship
None
BSC Feature Handover
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Parent topic: Basic Handover Parameters
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Intracell HO Allowed
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Intracell F-H HO Allowed
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Intracell HO Allowed
Description This parameter specifies whether the intra-cell handover is enabled. Note: A forced intra-cell handover is not subject to this parameter.
GUI Value Range [No,Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
Yes for hot-spot areas; densely populated urban areas, common urban areas, suburbs, and rural areas; No for high-speed circumstances
Recommended Value
No
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution When an interference handover or bad quality handover is performed, an intra-cell handover fails if this parameter is set to No.
This parameter does not affect concentric cell handovers and forced intra-cell handovers.
Parameter Name Intracell F-H HO Allowed
Description This parameter specifies whether the AMR handover is enabled. This parameter does not affect the dynamic non-AMR full-rate to half-rate handover.
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Parent topic: Basic Handover Parameters
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Load HO Allowed
GUI Value Range [Yes,No]
Default Value Yes
Unit None
Step -
Modification Rules None
Configuration Policy
The AMR handover can be triggered only when the Intracell F-H HO Allowed parameter is set to Yes.
Recommended Value
Yes
Parameter Relationship
None
BSC Feature Handover, AMR
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name Load HO Allowed
Description This parameter specifies whether a traffic load-sharing handover is enabled.
The load handover helps to reduce cell congestion, improve success rate of channel assignment, and balance the traffic load among cells, thus improving the network performance.
The load handover is used as an emergency measure instead of a primary measure to adjust abnormal traffic burst in partial areas. If load handovers occur frequently in a partial area, the cell and TRX configuration of BTSs and the network layout should be adjusted.
GUI Value Range [No,Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set to YES, extra interference may be introduced when aggressive frequency reuse pattern is used.
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Parent topic: Basic Handover Parameters
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MS Fast Moving HO Allowed
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Recommended Value
No
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name MS Fast Moving HO Allowed
Description This parameter specifies whether an MS that moves fast in a micro cell can be handed over to a macro cell. If this parameter is set to Yes, the MS that moves fast in a micro cell can be handed over to a macro cell, thus reducing the number of handovers. It is recommended that this handover be applied only in special areas such as highways to reduce the CPU load. The fast-moving micro-to-macro cell handover algorithm is used only in special conditions.
GUI Value Range [No,Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
It is recommended that this handover be applied only in special areas such as highways to reduce the CPU load. The fast-moving micro-to-macro cell handover algorithm is used only in special conditions.
Recommended Value
No
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Rx_Level_Drop HO Allowed
Parent topic: Basic Handover Parameters
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PBGT HO Allowed
Parameter Name Rx_Level_Drop HO Allowed
Description This parameter specifies whether to enable the rapid level drop handover. When this function is enabled, an MS can be handed over to a new cell before the occurrence call drop caused by the rapid drop of the receive level of the MS.
GUI Value Range [No,Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
In dual-band networking mode for densely populated urban areas, the level drops rapidly due to multiple barriers. The propagation loss of the 1800 MHz frequency band is greater than the propagation loss of the 900 MHz frequency band. Considering the preceding factors, you can enable the Rx_Level_Drop HO Allowed for the DCS1800 cell.
Under normal conditions, this parameter is set to No. To support the rapid level drop handover, the BSC must have the original MR.
Recommended Value
No
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name PBGT HO Allowed
Description This parameter specifies whether to enable the PBGT (POWER BUDGET) handover algorithm. Based on the path loss, the BSC uses the PBGT handover algorithm to search for a desired cell in real time and decides whether a handover should be performed. The cell must have less path loss and meet specific requirements. To avoid ping-pong handovers, the PBGT handover can be performed only on TCHs between
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Parent topic: Basic Handover Parameters
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Level HO Allowed
the cells of the same layer and hierarchy. The PBGT handover cannot be performed on SDCCHs.
GUI Value Range [No,Yes]
Default Value Yes
Unit None
Step -
Modification Rules None
Configuration Policy
Huawei recommends that the PBGT handover algorithm be enabled. Proper use of PBGT handovers helps to reduce cross coverage and to avoid co-channel interference and adjacent channel interference.
Recommended Value
Yes
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name Level HO Allowed
Description This parameter specifies whether the layered hierarchical handover is enabled. Cells are set to different layers and different priorities to implement the layered hierarchical handover. Then, based on the layers and priorities, calls are handed over to the cells with high priority (priority is related to Layer of the Cell and Cell Priority).
GUI Value Range [No,Yes]
Default Value Yes
Unit None
Step -
Modification Rules None
Configuration Policy
The lower the layer is, the higher the priority is. The lower the hierarchy is, the higher the priority is. The layered hierarchical handover cannot be triggered if the serving cell has the highest priority in the queue or if the level of the target cell is lower than the Inter-layer HO Threshold.
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Parent topic: Basic Handover Parameters
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Edge Handover Allowed
If this parameter is set to Yes, a call is handed over to the target cell that has a higher priority than the serving cell.
Recommended Value
Yes
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name Edge Handover Allowed
Description This parameter specifies whether to enable the edge handover algorithm. When an MS makes a call at the edge of a cell, the call may drop if the receive level is too low. To avoid such a call drop, an edge handover can be performed. When the UL receive level of the serving cell is lower than the Edge HO UL RX_LEV Threshold or the DL receive level of the serving cell is lower than the Edge HO DL RX_LEV Threshold, the MS is handed over to a neighbor cell.
GUI Value Range [No,Yes]
Default Value If HO Control Switch is set to HO Algorithm I, the default value of this parameter is Yes. If HO Control Switch is set to HO Algorithm II, the default value of this parameter is No.
Unit None
Step -
Modification Rules None
Configuration Policy
Huawei recommends that this parameter be set to Yes. In other words, the edge handover algorithm is enabled.
Recommended Value
Yes
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution During the edge handover, the MS can only be handed over to the cell
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Parent topic: Basic Handover Parameters
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BQ HO Allowed
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
TA HO Allowed
that ranks in front of the serving cell.
Parameter Name BQ HO Allowed
Description This parameter specifies whether the bad quality (BQ) handover is enabled. Whether a BQ handover should be enabled depends on the UL and DL transmission quality (BER). When the UL signal quality or the DL signal quality exceeds the BQ handover threshold. a BQ emergency handover is performed. A rise in BER may result from too low a signal level or channel interference.
GUI Value Range [No,Yes]
Default Value Yes
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
Yes
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution During the BQ handover, an MS is preferentially handed over to a target cell. If no target cell is available, the MS can also be handed over to a channel within the serving cell on condition that the intra-cell handover is enabled.
Parameter Name TA HO Allowed
Description This parameter specifies whether the time advance (TA) handover is enabled. The TA handover determines whether the timing advance (TA) is higher than the predefined TA threshold. When the TA is higher than
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Parent topic: Basic Handover Parameters
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Concentric Circles HO Allowed
the predefined TA threshold, a TA handover is triggered. The TA is calculated based on the distance between the MS and the BTS. The longer the distance is, the greater the TA value is.
GUI Value Range [No,Yes]
Default Value Yes
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
Yes
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Concentric Circles HO Allowed
Description This parameter specifies whether the concentric cell handover is enabled. The concentric cell is used to achieve the wide coverage of the UL subcell and the aggressive frequency reuse of the OL subcell. The concentric cell handover can improve system capacity and conversation quality. The concentric cell handover can be classified into the UL subcell to OL subcell handover and the OL subcell to UL subcell handover.
GUI Value Range [No,Yes]
Default Value Yes
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
Yes
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Parent topic: Basic Handover Parameters
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Interference HO Allowed
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Interference HO Allowed
Description This parameter specifies whether the interference handover is enabled.
When the receive level is higher the receive level threshold but the transmission quality is lower than the interference handover quality threshold, the interference handover is triggered. In other words, the MS is interfered and needs to be handed over.
GUI Value Range [No,Yes]
Default Value Yes
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
Yes
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution The interference handover decision consists of the uplink interference handover decision and the downlink interference handover decision. During the interference handover, an MS is preferentially handed over to a target cell. If no target cell is available, the MS can also be handed over to a channel within the serving cell on condition that the intra-cell handover is enabled.
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Edge HO UL RX_LEV Threshold
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential
Parameter Name Edge HO UL RX_LEV Threshold
Description If the UL receive level remains lower than the Edge HO UL RX_LEV Threshold for a period, the edge handover is triggered. If the PBGT handover is enabled, the relevant edge handover threshold can be decreased. If the PBGT handover is not enabled and the edge handover threshold is not properly set, cross coverage, co-channel interference, and adjacent channel interference are likely to occur. The Edge HO UL RX_LEV Threshold should be adjusted based on the handover performance statistics and the actual network performance to achieve the UL/DL balance.
The value of this parameter ranges from 0 to 63 (corresponding to -110 dBm to -47 dBm).
GUI Value Range [0,63]
Default Value 10
Unit Levels
Step -
Modification Rules None
Configuration Policy
This parameter should be adjusted as required. If the Edge HO UL RX_LEV Threshold is set to a too small value, call drop may easily occur. If the PBGT handover is enabled, the relevant edge handover threshold can be decreased.
Recommended Value
The typical configurations of this parameter are as follows:
25: urban areas with PBGT handover disabled
20: suburbs with a single BTS
20: urban areas with PBGT handover enabled
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution 1. Edge HO UL RX_LEV Threshold/Edge HO DL RX_LEV Threshold < UL RX_LEV Lower Threshold/DL RX_LEV Lower Threshold in Huawei II power control algorithm.
2. Edge HO UL RX_LEV Threshold/Edge HO DL RX_LEV Threshold < UL RX_LEV Lower Threshold/DL RX_LEV Lower Threshold expected in Huawei I power control algorithm.
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Copyright © Huawei Technologies Co., Ltd.
Edge HO DL RX_LEV Threshold
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Parameter Name Edge HO DL RX_LEV Threshold
Description If the DL receive level remains lower than the Edge HO DL RX_LEV Threshold for a period, the edge handover is triggered. If the PBGT handover is enabled, the relevant edge handover threshold can be decreased. If the PBGT handover is not enabled and the edge handover threshold is not properly set, cross coverage, co-channel interference, and adjacent channel interference are likely to occur. The Edge HO DL RX_LEV Threshold should be adjusted based on the handover performance statistics and the actual network performance to achieve the UL/DL balance.
The value of this parameter ranges from 0 to 63 (corresponding to -110 dBm to -47 dBm).
GUI Value Range [0,63]
Default Value 20
Unit Levels
Step -
Modification Rules None
Configuration Policy
This parameter should be adjusted as required. If the Edge HO DL RX_LEV Threshold is set to a too small value, call drop may easily occur. If the PBGT handover is enabled, the relevant edge handover threshold can be decreased.
Recommended Value
20
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution 1. Edge HO UL RX_LEV Threshold/Edge HO DL RX_LEV Threshold < UL RX_LEV Lower Threshold/DL RX_LEV Lower Threshold in Huawei II power control algorithm.
2. Edge HO UL RX_LEV Threshold/Edge HO DL RX_LEV Threshold < UL RX_LEV Lower Threshold/DL RX_LEV Lower Threshold expected in Huawei I power control algorithm.
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Edge HO Watch Time(s)
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Edge HO Valid Time(s)
Parameter Name Edge HO Watch Time(s)
Description According to the P/N criterion, if the UL or DL receive level is lower than its corresponding edge handover threshold for P consecutive times within N times, an edge handover is triggered.
This parameter corresponds to N of the P/N criterion,and applies only to HO Algorithm I.
GUI Value Range [1,16]
Default Value 3
Unit Seconds
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the edge handover can be triggered.
Recommended Value
3
Parameter Relationship
Edge HO Valid Time(s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name Edge HO Valid Time(s)
Description According to the P/N criterion, if the UL or DL receive level is lower than its corresponding edge handover threshold for P consecutive times within N times, an edge handover is triggered.
This parameter corresponds to P of the P/N criterion, and applies only to HO Algorithm I.
GUI Value Range [1,16]
Default Value 2
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Parent topic: Basic Handover Parameters
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Edge HO Watch Time(0.5s)
Unit Seconds
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the edge handover can be triggered.
Recommended Value
2
Parameter Relationship
Edge HO Watch Time(s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name Edge HO Watch Time(0.5s)
Description According to the P/N criterion, if the UL or DL receive level is lower than its corresponding edge handover threshold for P consecutive times within N times, an edge handover is triggered.
This parameter corresponds to P of the P/N criterion, and applies only to HO Algorithm II.
GUI Value Range [1,16]
Default Value 1
Unit 0.5 Seconds
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the edge handover can be triggered.
Recommended Value
1
Parameter Relationship
Edge HO Valid Time(0.5s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
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Parent topic: Basic Handover Parameters
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Edge HO Valid Time(0.5s)
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Edge HO AdjCell Watch Time(s)
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name Edge HO Valid Time(0.5s)
Description According to the P/N criterion, if the UL or DL receive level is lower than its corresponding edge handover threshold for P consecutive times within N times, an edge handover is triggered.
This parameter corresponds to P of the P/N criterion, and applies only to HO Algorithm II.
GUI Value Range [1,16]
Default Value 1
Unit 0.5 Seconds
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the edge handover can be triggered.
Recommended Value
1
Parameter Relationship
Edge HO Watch Time(0.5s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name Edge HO AdjCell Watch Time(s)
Description According to the P/N criterion, if the adjacent cell keeps meeting the triggering conditions of edge handover for P consecutive times within N
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Parent topic: Basic Handover Parameters
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Edge HO AdjCell Valid Time(s)
times, an edge handover to the adjacent cell is triggered.
This parameter corresponds to N of the P/N criterion.
GUI Value Range [1,16]
Default Value 3
Unit Seconds
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the edge handover can be triggered.
Recommended Value
3
Parameter Relationship
Edge HO AdjCell Valid Time(s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name Edge HO AdjCell Valid Time(s)
Description According to the P/N criterion, if the adjacent cell keeps meeting the triggering conditions of edge handover for P consecutive times within N times, an edge handover to the adjacent cell is triggered.
This parameter corresponds to P of the P/N criterion.
GUI Value Range [1,16]
Default Value 2
Unit Seconds
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the edge handover can be triggered.
Recommended Value
2
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Parent topic: Basic Handover Parameters
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Edge HO AdjCell Watch Time(0.5s)
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Edge HO AdjCell Valid Time(0.5s)
Parameter Relationship
Edge HO AdjCell Watch Time(s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name Edge HO AdjCell Watch Time(0.5s)
Description According to the P/N criterion, if the adjacent cell keeps meeting the triggering conditions of edge handover for P consecutive times within N times, an edge handover to the adjacent cell is triggered.
This parameter corresponds to N of the P/N criterion.
GUI Value Range [1,16]
Default Value 1
Unit 0.5Seconds
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the edge handover can be triggered.
Recommended Value
1
Parameter Relationship
Edge HO AdjCell Valid Time(0.5s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
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Parent topic: Basic Handover Parameters
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Layer HO Watch Time(s)
Parameter Name Edge HO AdjCell Valid Time(0.5s)
Description According to the P/N criterion, if the adjacent cell keeps meeting the triggering conditions of edge handover for P consecutive times within N times, an edge handover to the adjacent cell is triggered.
This parameter corresponds to P of the P/N criterion.
GUI Value Range [1,16]
Default Value 1
Unit 0.5Seconds
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the edge handover can be triggered.
Recommended Value
1
Parameter Relationship
Edge HO AdjCell Watch Time(0.5s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name Layer HO Watch Time(s)
Description According to the P/N criterion, if the signals in the candidate cell are better than those in the serving cell for P consecutive times within N times, a layered hierarchical handover is triggered.
This parameter corresponds to N of the P/N criterion.
GUI Value Range [1,16]
Default Value 3
Unit Seconds
Step -
Modification Rules None
Configuration The greater the value of this parameter is set, the more difficult the
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Parent topic: Basic Handover Parameters
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Layer HO Valid Time(s)
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential
Policy layered hierarchical handover can be triggered.
Recommended Value
3
Parameter Relationship
Layer HO Valid Time(s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name Layer HO Valid Time(s)
Description According to the P/N criterion, if the signals in the candidate cell are better than those in the serving cell for P consecutive times within N times, a layered hierarchical handover is triggered.
This parameter corresponds to P of the P/N criterion.
GUI Value Range [1,16]
Default Value 2
Unit Seconds
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the layered hierarchical handover can be triggered.
Recommended Value
2
Parameter Relationship
Layer HO Watch Time(s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
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Copyright © Huawei Technologies Co., Ltd.
PBGT Watch Time(s)
Parent topic: Basic Handover Parameters
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PBGT Valid Time(s)
Parameter Name PBGT Watch Time(s)
Description According to the P/N criterion, if the adjacent cell keeps meeting the triggering conditions of PBGT handover for P consecutive times within N times, a PBGT handover is triggered and the MS is handed over to the adjacent cell.
This parameter corresponds to N of the P/N criterion.
GUI Value Range [1,16]
Default Value 3
Unit Seconds
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the PBGT handover can be triggered.
Recommended Value
3
Parameter Relationship
PBGT Valid Time(s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name PBGT Valid Time(s)
Description According to the P/N criterion, if the adjacent cell keeps meeting the triggering conditions of PBGT handover for P consecutive times within N times, a PBGT handover is triggered and the MS is handed over to the adjacent cell.
This parameter corresponds to P of the P/N criterion.
GUI Value Range [1,16]
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Parent topic: Basic Handover Parameters
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Intracell F-H HO Stat Time(s)
Default Value 2
Unit Seconds
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the PBGT handover can be triggered.
Recommended Value
2
Parameter Relationship
PBGT Watch Time(s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name Intracell F-H HO Stat Time(s)
Description This parameter determines the period during which the triggering conditions of the intra-cell full-rate to half-rate handover are met.
The intra-cell full-rate to half-rate handover must conform to the P/N criterion. That is, the triggering conditions of the intra-cell full-rate to half-rate handover are met for P consecutive seconds with N measurement seconds.
This parameter corresponds to N of the P/N criterion. The triggering conditions of the intra-cell full-rate to half-rate handover are the F2H HO Threshold or the H2F HO Threshold. This parameter is used with the two parameters.
GUI Value Range [1,16]
Default Value 5
Unit Seconds
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the AMR handover can be triggered.
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Parent topic: Basic Handover Parameters
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Intracell F-H HO Last Time(s)
Parent topic: Basic Handover Parameters
Recommended Value
5
Parameter Relationship
None
BSC Feature Handover, AMR
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name Intracell F-H HO Last Time(s)
Description The intra-cell full-rate to half-rate handover must conform to the P/N criterion. That is, the triggering conditions of the intra-cell full-rate to half-rate handover are met for P consecutive times with N measurement times.
This parameter corresponds to P of the P/N criterion. The triggering conditions of the intra-cell full-rate to half-rate handover are the F2H HO Threshold or the H2F HO Threshold. This parameter is used with the two parameters.
GUI Value Range [1,16]
Default Value 4
Unit Seconds
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the AMR handover can be triggered.
Recommended Value
4
Parameter Relationship
None
BSC Feature Handover, AMR
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
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F2H HO Threshold
Parent topic: Basic Handover Parameters
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H2F HO Threshold
Parameter Name F2H HO Threshold
Description This parameter specifies the threshold of the full-rate TCH to half-rate TCH handover. When an AMR call occupies a full-rate TCH, an intra-cell full-rate TCH to half-rate TCH handover is triggered if the radio quality indication (RQI) remains higher than the configured F2H HO Threshold for a predefined period. This parameter is used with the Intracell F-H HO Stat Time and the Intracell F-H HO Last Time.
GUI Value Range [0,39]
Default Value 25
Unit dB
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the AMR full-rate TCH to half-rate TCH handover can be triggered.
Recommended Value
25
Parameter Relationship
None
BSC Feature Handover, AMR
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name H2F HO Threshold
Description This parameter specifies the threshold of the half-rate TCH to full-rate TCH handover. When an AMR call occupies a half-rate TCH, an intra-cell half-rate TCH to full-rate TCH handover is triggered if the radio quality indication (RQI) remains lower than the configured H2F HO Threshold for a predefined period. This parameter is used with the Intracell F-H HO Stat Time and the Intracell F-H HO Last Time.
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Parent topic: Basic Handover Parameters
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Inter-layer HO Threshold
GUI Value Range [0,39]
Default Value 12
Unit dB
Step -
Modification Rules None
Configuration Policy
The lower the value of this parameter is set, the more difficult the AMR half-rate TCH to full-rate TCH handover can be triggered.
Recommended Value
12
Parameter Relationship
None
BSC Feature Handover, AMR
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name Inter-layer HO Threshold
Description This parameter is one bit of the 16 bits that are used by the BSC to sort the candidate cells for handovers.
If the DL receive level of a cell is lower than the Inter-layer HO Threshold, the cell is listed in the candidate cells based on the receive level. The cell takes a low priority for handovers.
The value of this parameter ranges from 0 to 63 (corresponding to -110 dBm to -47 dBm).
GUI Value Range [0,63]
Default Value 25
Unit Levels
Step -
Modification Rules None
Configuration Policy
None
Recommended 25
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Parent topic: Basic Handover Parameters
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Inter-layer HO Hysteresis
Parent topic: Basic Handover Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Value
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution Note that in hierarchical handover and load handover, the priority of the target cell must be higher than the Inter-layer HO Threshold.
Parameter Name Inter-layer HO Hysteresis
Description This parameter specifies the hysteresis of an inter-layer or inter-priority handover. This parameter is used to avoid inter-layer ping-pong handovers.
Actual Inter-layer HO Threshold of a serving cell = configured Inter-layer HO Threshold - Inter-layer HO Hysteresis
Actual Inter-layer HO Threshold of an adjacent cell = configured Inter-layer HO Threshold + Inter-layer HO Hysteresis of an adjacent cell - 64.
GUI Value Range [0,63]
Default Value 2
Unit dB
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
2
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
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Min UP Power on HO Candidate Cell
Parent topic: Basic Handover Parameters
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Min DL Power on HO Candidate Cell
Parameter Name Min UP Power on HO Candidate Cell
Description The M criterion supports the minimum value constraint of uplink receive level of the adjacent cell.
Expected uplink level of the adjacent cell >= (Min UP Power on HO Candidate Cell + Min Access Level Offset)
The M criterion is met if the Filtered downlink level of the adjacent cell >= (Min DL Power on HO Candidate Cell + Min Access Level Offset); otherwise, the M criterion is not met.
The value of this parameter ranges from 0 to 63 (corresponding to -110 dBm to -47 dBm).
GUI Value Range [0,63]
Default Value 0
Unit Levels
Step -
Modification Rules None
Configuration Policy
1. This parameter must be properly set because it limits the number of candidate cells. If this parameter is set to a too great value, some desired cells may be excluded from the candidate cells. If this parameter is set to a too small value, an unwanted cell may become the target cell. This leads to handover failures or call drops.
2. A cell can become a candidate cell only when the uplink receive level minus this parameter is greater than the minimum access level offset.
Recommended Value
0
Parameter Relationship
Min Access Level Offset
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Min DL Power on HO Candidate Cell
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Parent topic: Basic Handover Parameters
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Quick Handover Enable
Description The M criterion supports the minimum value constraint of downlink receive level of an adjacent cell.
Filtered downlink level of the adjacent cell >= (Minimum downlink power of the candidate cell for handover + Minimum access level offset)
The M criterion is met if the Filtered uplink level of the adjacent cell >= (Minimum uplink power of the candidate cell for handover + Minimum access level offset); otherwise, the M criterion is not met.
GUI Value Range [0,63]
Default Value 10
Unit Levels
Step -
Modification Rules None
Configuration Policy
1. This parameter must be properly set because it limits the number of candidate cells. If this parameter is set to a too great value, some desired cells may be excluded from the candidate cells. If this parameter is set to a too small value, an unwanted cell may become the candidate cell. This leads to handover failures or call drops.
2. A cell can become a candidate cell only when the receive level minus this parameter is greater than the minimum access level offset.
Recommended Value
10
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Quick Handover Enable
Description This parameter specifies whether the quick handover is enabled.
0: NO; 1: YES
GUI Value Range [NO,YES]
Default Value NO
Unit None
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Parent topic: Basic Handover Parameters
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TIGHT BCCH HO Watch Time(s)
Parent topic: Basic Handover Parameters
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
NO
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name TIGHT BCCH HO Watch Time(s)
Description This parameter corresponds to N of the P/N criterion for the TIGHT BCCH handover.
GUI Value Range [0,16]
Default Value 3
Unit Seconds
Step 1
Modification Rules None
Configuration Policy
According to the P/N criterion, if the load of a non-BCCH frequency is higher than the Load Threshold for TIGHT BCCH HO, the MS with conversation quality higher than the RX_QUAL Threshold for TIGHT BCCH HO and far from the cell edge is handed over to the TCH on the BCCH frequency. Thus, the TCHs on non-BCCH frequencies are reserved for other calls. This ensures the call performance of other calls.
Recommended Value
3
Parameter Relationship
RX_QUAL Threshold for TIGHT BCCH HO, Load Threshold for TIGHT BCCH HO
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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TIGHT BCCH HO Valid Time(s)
Parent topic: Basic Handover Parameters
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ATCBHoSwitch
Parameter Name TIGHT BCCH HO Valid Time(s)
Description This parameter corresponds to P of the P/N criterion for the TIGHT BCCH handover.
GUI Value Range [0,16]
Default Value 2
Unit Seconds
Step 1
Modification Rules None
Configuration Policy
According to the P/N criterion, if the load of a non-BCCH frequency is higher than the Load Threshold for TIGHT BCCH HO, the MS with conversation quality higher than the RX_QUAL Threshold for TIGHT BCCH HO and far from the cell edge is handed over to the TCH on the BCCH frequency. Thus, the TCHs on non-BCCH frequencies are reserved for other calls. This ensures the call performance of other calls.
Recommended Value
2
Parameter Relationship
RX_QUAL Threshold for TIGHT BCCH HO, Load Threshold for TIGHT BCCH HO
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name ATCBHoSwitch
Description This parameter specifies the switch of the ATCB handover algorithm. The ATCB handover algorithm can determine the coverage areas of the OL subcell and the UL subcell and balance the load between the OL subcell and the UL subcell and between the UL subcell and the adjacent subcell according to the actual networking. It can decrease the interference, improve the conversation quality, and achieve the aggressive frequency reuse of the OL subcell.
0: Close
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Parent topic: Basic Handover Parameters
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Enhanced Concentric Allowed
1: Open
GUI Value Range [Close,Open]
Default Value Close
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
Close
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Enhanced Concentric Allowed
Description This parameter specifies whether the enhanced concentric cell handover is allowed in a concentric cell.
If the cell supports the enhanced concentric cell function, compare the receive level of the MS with OtoU HO Received Level Threshold and with UtoO HO Received Level Threshold, and decide whether an OtoU HO is triggered or whether a UtoO HO is triggered and decide whether an enhanced concentric cell handover will be triggered.
If the cell does not support the enhanced concentric cell function, compare the receive level of the MS with RX_LEV Threshold, and decide whether a concentric cell handover is triggered. The traffic load in the UL subcell should be taken into account for triggering the handover from the UL subcell to the OL subcell.
GUI Value Range [No,Yes]
Default Value Yes
Unit None
Step -
Modification Rules None
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Parent topic: Basic Handover Parameters
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HO Control l Min Interval for TCH HOs l Min Interval for SDCCH HOs l Min Interval for Consecutive HOs l Min Interval for Emerg.HOs l Inter-BSC SDCCH HO ALLowed l Penalty Allowed l MR.Preprocessing l Transfer Original MR l Transfer BS/MS Power Class l Sent Freq.of preprocessed MR l Min Power Level For Directed Retry
Parent topic: Handover Data
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Min Interval for TCH HOs
Configuration Policy
None
Recommended Value
Yes
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Min Interval for TCH HOs
Description After a new TCH is assigned to an MS, the MS can be handed over to another channel only if the time during which the MS occupies the TCH is longer than the period specified by this parameter.
GUI Value Range [0,60]
Default Value 2
Unit Seconds
Step -
Modification Rules None
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Parent topic: HO Control
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Min Interval for SDCCH HOs
Configuration Policy
This parameter can be used to avoid unwanted handovers due to inaccurate measurement reports in the initial phase of call establishment.
If measurement reports are processed on the BTS side, you can set Report Frequency of the Preprocessed Measurement Reports smaller than the report frequency of the measurement reports from the MS. Therefore, it is recommended that Min Interval for TCH HOs be set to a small value.
If measurement reports are processed on the BSC side, the frequency of receiving measurement reports on the BSC side is greater than that on the BTS side. Therefore, it is recommended that Min Interval for TCH HOs be set to a great value.
Recommended Value
2
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Min Interval for SDCCH HOs
Description After a new SDCCH is assigned to an MS, the MS can be handed over to another channel only if the time during which the MS occupies the SDCCH is longer than the period specified by this parameter.
GUI Value Range [0,60]
Default Value 2
Unit Seconds
Step -
Modification Rules None
Configuration Policy
This parameter is used to avoid unwanted handovers due to inaccurate measurement reports generated in the initial phase of call establishment.
If measurement reports are processed on the BTS side, you can set Report Frequency of the Preprocessed Measurement Reports smaller than the report frequency of the measurement reports from the MS. Therefore, it is recommended that Min Interval for SDCCH HOs be set to a small value.
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Parent topic: HO Control
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Min Interval for Consecutive HOs
Parent topic: HO Control
If measurement reports are processed on the BSC side, the frequency of receiving measurement reports on the BSC side is greater than that on the BTS side. Therefore, it is recommended that Min Interval for SDCCH HOs be set to a great value.
Recommended Value
2
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Min Interval for Consecutive HOs
Description This parameter specifies the minimum interval between two consecutive handovers. No handover is allowed during the minimum interval.
A timer starts after a handover is complete, and a subsequent handover is allowed only after the timer expires. The value of this parameter is the length of the timer. The parameter is used to avoid frequent handovers.
GUI Value Range [0,60]
Default Value 4
Unit Seconds
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too small value, frequent handovers cannot be avoided. If this parameter is set to a too great value, handovers cannot be performed timely.
Recommended Value
4
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Min Interval for Emerg.HOs
Parent topic: HO Control
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Inter-BSC SDCCH HO ALLowed
Parameter Name Min Interval for Emerg.HOs
Description This parameter specifies the minimum interval between two consecutive emergency handovers. No emergency handover is allowed during the minimum interval.
When the conditions for an emergency handover are met, an emergency handover timer is started. Another emergency handover decision can be made only when the timer expires.
GUI Value Range [0,60]
Default Value 4
Unit Seconds
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too small value, frequent handovers cannot be avoided. If this parameter is set to a too great value, handovers cannot be performed timely.
Recommended Value
4
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Inter-BSC SDCCH HO ALLowed
Description This parameter specifies whether to allow the inter-BSC SDCCH handover.
After the handover prohibition time for the initial access of an MS, the MS can be handed over to another SDCCH in another BSC before a TCH is assigned.
GUI Value Range [No,Yes]
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Parent topic: HO Control
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Penalty Allowed
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter should be set to Yes if the inter-BSC SDCCH handover is allowed.
Recommended Value
No
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Penalty Allowed
Description This parameter specifies whether to penalize the target cell where a handover fails or the serving cell where the TA is too great or the signal quality is too bad.
If the target cell is congested and an incoming cell handover fails, a penalty is performed on the target cell to avoid the handover of the MS to the cell.
When the TA is great or the signal quality is bad, ping-pong handovers are likely to occur. If a handover fails, a penalty should be performed on the serving cell. These kinds of penalties can be performed on cells in one BSC or on external cells.
GUI Value Range [No,Yes]
Default Value Yes
Unit None
Step -
Modification Rules None
Configuration Policy
Huawei recommends that this parameter be set to Yes. If you need to disable the penalty for a certain handover, set the related penalty time and penalty level to 0.
Recommended Yes
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Parent topic: HO Control
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MR.Preprocessing
Value
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name MR.Preprocessing
Description This parameter specifies whether the BTS should preprocess MRs. This parameter determines whether transmit power is controlled by the BTS or by the BSC. This parameter is set to YES if power control is performed by the BTS. This parameter is set to NO if power control is performed by the BSC.
GUI Value Range [No,Yes]
Default Value Yes
Unit None
Step -
Modification Rules None
Configuration Policy
When this parameter is set to NO, the BSC preprocesses the measurement reports. In this case, the Transfer Original MR, Transfer BS/MS Power Class, and Sent Freq.of preprocessed MR parameters are invalid.
When this parameter is set to YES, the signaling on the Abis interface and the load of the BSC are reduced. Thus, the response time is shortened and the network performance is improved.
When setting this parameter, you should determine whether the BTS supports the configured power control algorithms.
Recommended Value
No
Parameter Relationship
Related parameters: Transfer Original MR, Transfer BS/MS Power Class, Sent Freq.of preprocessed MR
. For channels on the Abis interface operating at 16 kbit/s, if a TRX is configured with two or more SDCCHs, or if SD Dynamic Allocation Allowed is set to Yes, you are advised to set MR Preprocessing to Yes. Huawei recommends that the measurement report is reported once per
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Parent topic: HO Control
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Transfer Original MR
Parent topic: HO Control
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Transfer BS/MS Power Class
second.
BSC Feature Handover and power control
Parameter Class Parameters About Radio Resources
Caution BTS24, BTS3X, BTS3001C, BTS3002C, and double-transceiver BTSs all support MR preprocessing.
For BTS22C, this parameter must be set to No.
BTS2X products (including all versions of BTS23 and BTS22C) support Huawei I power control algorithm instead of Huawei II power control algorithm.
Parameter Name Transfer Original MR
Description This parameter specifies whether the BTS should send the original measurement report to the BSC. If this parameter is set to Yes, the BTS should send the preprocessed MR and the original MR to the BSC.
GUI Value Range [No,Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
In 4:1 multiplexing mode, if there are more than two timeslots configured in SDCCH/8 scheme, then this parameter should be set to No.
Recommended Value
No
Parameter Relationship
MR Preprocessing
BSC Feature Handover and power control
Parameter Class Parameters About Radio Resources
Caution None
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Parent topic: HO Control
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Sent Freq.of preprocessed MR
Parameter Name Transfer BS/MS Power Class
Description This parameter specifies whether the BS/MS power class should be transferred from the BTS to the BSC.
GUI Value Range [No,Yes]
Default Value Yes
Unit None
Step -
Modification Rules None
Configuration Policy
When MR preprocessing is enabled, the UL and DL balance measurement is affected if Transfer BS/MS Power Class is set to No. In addition, the handovers (such as PBGT handovers, load handovers, and concentric cell handovers) that require power compensation may fail.
Recommended Value
Yes
Parameter Relationship
MR Preprocessing
BSC Feature Handover and power control
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Sent Freq.of preprocessed MR
Description This parameter specifies the frequency at which the BTS sends the preprocessed MR to the BSC. After preprocessing the MRs, the BTS sends the preprocessed MRs to the BSC. For example, if this parameter is set to Twice every second, the BTS sends preprocessed MRs to the BSC every 0.5 second.
GUI Value Range [Not Report,Twice Every Second,Once Every Second,Once Every Two Second,Once Every Four Second]
Default Value Twice Every Second
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter should be set on the basis of the data rate and flow on the Abis interface. If the preprocessed MR is sent at a high frequency, the flow on the Abis interface is increased.
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Parent topic: HO Control
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Min Power Level For Directed Retry
Parent topic: HO Control
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Recommended Value
Twice Every Second
Parameter Relationship
MR Preprocessing
BSC Feature Handover and power control
Parameter Class Parameters About Radio Resources
Caution If this parameter is set to Do not report, the BTS does not send the preprocessed MR to the BSC. Thus, the handover and the power control cannot be performed, and the conversation quality is severely affected.
Parameter Name Min Power Level For Directed Retry
Description This parameter is used to select the candidate cells during directed retry in HO Algorithm I. If the receive level of an adjacent cell is greater than the value of this parameter, the adjacent cell can be selected as a candidate cell for directed retry. The value of this parameter ranges from 0 to 63 (corresponding to -110 dBm to -47 dBm).
GUI Value Range [0,63]
Default Value 16
Unit Levels
Step -
Modification Rules None
Configuration Policy
If the receive level of an adjacent cell is greater than or equal to the value of this parameter, this adjacent cell can be selected as a candidate cell for directed retry.
Recommended Value
16
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Cell HO Data l DLevOffset For Interfere HO(dbm) l DQualOffset For Interfere HO l ULevOffset For Interfere HO(dbm) l UQualOffset For Interfere HO l Inter-RAT Load Handover Allowed l Inter-BSC Load Handover Allowed l UL BQ HO Watch Time(0.5s) l UL BQ HO Last Time(0.5s) l System Flux Threshold for Load HO l Load HO Threshold(%) l Load Req.on Candidate Cell(%) l Load HO Bandwidth l Load HO Step Period l Load HO Step Level l MS Fast-moving Watch Cells l MS Fast-moving Valid Cells l MS Fast-moving Time Threshold l MAX Consecutive HO Times l Forbidden time after MAX Times l Interval for Consecutive HO Jud. l Penalty on Fast Moving Handover l Penalty Time on Fast Moving HO(s) l UL Expected Level at HO Access l K Offset l RX_QUAL Threshold for TIGHT BCCH HO l Load Threshold for TIGHT BCCH HO l Max Resend Times of Phy.Info. l T3105(10ms)
Parent topic: Handover Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DLevOffset For Interfere HO(dbm) Parameter Name DLevOffset For Interfere HO(dbm)
Description The DL receive quality, a factor considered in deciding an interference handover, is derived from the sum of the DL level and the value of this parameter. The default value of this parameter is 0.
GUI Value Range [-30,30]
Default Value 0
Unit dBm
Step -
Modification Rules None
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Parent topic: Cell HO Data
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DQualOffset For Interfere HO
Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Configuration Policy
None
Recommended Value
0
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name DQualOffset For Interfere HO
Description This parameter specifies the range of interference handover, which is a factor considered in deciding an interference handover. The default value of this parameter is 0.
GUI Value Range [-30,30]
Default Value 0
Unit Levels
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
0
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
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ULevOffset For Interfere HO(dbm)
Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
UQualOffset For Interfere HO
Parameter Name ULevOffset For Interfere HO(dbm)
Description The UL receive quality, a factor considered in deciding an interference handover, is derived from the sum of the UL level and the value of this parameter. The default value of this parameter is 0.
GUI Value Range [-30,30]
Default Value 0
Unit dBm
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
0
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name UQualOffset For Interfere HO
Description This parameter specifies the range of interference handover, which is a factor considered in deciding an interference handover. The default value of this parameter is 0.
GUI Value Range [-30,30]
Default Value 0
Unit Levels
Step -
Modification Rules None
Configuration Policy
None
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Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Inter-RAT Load Handover Allowed
Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Inter-BSC Load Handover Allowed
Recommended Value
0
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name Inter-RAT Load Handover Allowed
Description This parameter determines whether to select a 3G neighbor cell as the destination cell for load handover. When Load HO Allowed is set to No, Inter-RAT Load Handover Allowed should not be set to Yes.
GUI Value Range [No, Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
None
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
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Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
UL BQ HO Watch Time(0.5s)
Parameter Name Inter-BSC Load Handover Allowed
Description This parameter determines whether to select an external 2G neighbor cell as the destination cell for load handover. When Load HO Allowed is set to No, Inter-BSC Load Handover Allowed should not be set to Yes.
GUI Value Range [No, Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
None
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name UL BQ HO Watch Time(0.5s)
Description The P/N criterion must be met for triggering a UL BQ handover. That is, such a handover can be triggered only if the triggering conditions are met P times among N times.
This parameter corresponds to N in the P/N criterion.
GUI Value Range [1,8]
Default Value 1
Unit Seconds
Step 0.5s
Modification Rules None
Configuration Policy
None
Recommended Value
1
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Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
UL BQ HO Last Time(0.5s)
Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
System Flux Threshold for Load HO
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name UL BQ HO Last Time(0.5s)
Description The P/N criterion must be met for triggering a UL BQ handover. That is, such a handover can be triggered only if the triggering conditions are met P times among N times.
This parameter corresponds to P in the P/N criterion.
GUI Value Range [1,8]
Default Value 1
Unit Seconds
Step 0.5s
Modification Rules None
Configuration Policy
None
Recommended Value
1
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
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Parent topic: Cell HO Data
Parameter Name System Flux Threshold for Load HO
Description System flux thresholds correspond to the system flux obtained based on message packets, CPU load, and FID queuing load. The system flux level is the current flux control level of the system.
0-11: There are 12 flow control levels. Where, 0 indicates the lowest level and 11 indicates the highest level.
A load handover is allowed only when the system flux is lower than the value of this parameter. The handover performed over the maximum threshold may have tremendous impacts on the system. Thus, this parameter should not be set to a higher value. 1) The flow control level algorithm for the assigned system messages: [(Average Message Usage - Inner Flow Control Discard Begin Threshold)/(Inner Flow Control Discard All Threshold - Inner Flow Control Discard Begin Threshold) x 100]/10+1 (round-down for division operation). If the value is smaller than Inner Flow Control Discard Begin Threshold, Level 0 is used. If the value is equal to or greater than Inner Flow Control Discard Begin Threshold, the level is calculated. The value range is from 0 to 11.
2) Flow control threshold for the CPU to start to discard the channel access messages and paging messages: 80%
. Flow control threshold for the CPU to discard all channel access messages and paging messages: 100%
. CPU usage smaller than 80% corresponds to level 0. CPU usage equal to or greater than CPU flow control threshold 80% corresponds to level 2. An increase of 5% means an increase of 2 levels. Level 10 is the highest. The level value can be 0, 2, 4, 6, 8, and 10.
GUI Value Range [0,11]
Default Value 10
Unit Levels
Step -
Modification Rules None
Configuration Policy
The value of this parameter should not be set too high. Load handover is allowed only when the system flow is lower than the setting of this parameter. Otherwise, the load on the system is increased.
Recommended Value
10
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Load HO Threshold(%)
Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Load Req.on Candidate Cell(%)
Parameter Name Load HO Threshold(%)
Description When Load HO Allowed is set to Yes, Load HO Threshold should be set to 85.
The traffic load of a cell refers to the TCH seizure rate in the cell.
The load handover is triggered when the traffic load in a cell is greater than the value of this parameter. In other words, the load handover is triggered when the ratio of TCHs occupied in a cell reaches the threshold defined for load handover.
GUI Value Range [0,100]
Default Value 90
Unit %
Step -
Modification Rules None
Configuration Policy
The setting of this parameter affects the triggering of the load handover. If it is set to a lower value, the number of load handovers increases.
Recommended Value
90
Parameter Relationship
Load HO Allowed
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution The Load HO Threshold and Load Req.on Candidate Cell parameters affect the sorting of candidate cells. Therefore, when the cell load is high, if this parameter is improperly set, the PBGT handover may fail.
Parameter Name Load Req.on Candidate Cell(%)
Description If the cell load is smaller than the value of this parameter, the cell can receive the MSs handed over from other cells. Otherwise, the cell rejects the MSs handed over from other cells.
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Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Load HO Bandwidth
GUI Value Range [0,100]
Default Value 85
Unit %
Step -
Modification Rules None
Configuration Policy
The setting of this parameter affects the load handover targeted to the cell. If it is set to a lower value, the number of handover requests that are rejected increases.
Recommended Value
85
Parameter Relationship
Load HO Allowed
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution The Load HO Threshold and Load Req.on Candidate Cell parameters affect the sorting of candidate cells. Therefore, when the cell load is high, if this parameter is improperly set, the PBGT handover may fail.
Parameter Name Load HO Bandwidth
Description In HO Algorithm I, the load handover is allowed only when the receive level of the serving cell is within the range of (Edge HO DL RX_LEV Threshold, Edge HO DL RX_LEV Threshold + Load HO Bandwidth).
In HO Algorithm II, the load handover is allowed only when the difference between the receive level of the neighbor cell and the receive level of the serving cell is within the range of (Inter-cell HO Hysteresis - Load HO Bandwidth, Inter-cell HO Hysteresis).
GUI Value Range [0,63]
Default Value 25
Unit dB
Step -
Modification Rules None
Configuration Policy
The setting of this parameter determines the maximum width of the handover strip during load handover.
Recommended 25
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Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Load HO Step Period
Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Value
Parameter Relationship
Only when the receive level of the serving cell is within the range of (Edge HO DL RX_LEV Threshold, Edge HO DL RX_LEV Threshold + Load HO Bandwidth), a load handover is allowed.
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Load HO Step Period
Description When the load of the cell is equal to or greater than the Load HO Threshold, all the calls served by the cell may send handover requests simultaneously, and the load on the CPU will increase rapidly as a consequence. In some cases, call drops may occur due to traffic congestion in the cell. Therefore, the hierarchical handover algorithm for load handover is used for the BSC to control the number of users to be handed over by levels.
This parameter specifies the period for each load handover level.
GUI Value Range [1,255]
Default Value 10
Unit Seconds
Step -
Modification Rules None
Configuration Policy
The setting of this parameter affects the load handover time. If it is set to a too greater value, the handover time of each level is long.
Recommended Value
10
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Load HO Step Level
Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
MS Fast-moving Watch Cells
Parameter Name Load HO Step Level
Description In hierarchical load handover, the handover strip increases by one Load HO Step Level for every Load HO Step Period, starting from the Edge HO DL RX_LEV Threshold. The handovers are performed as such until all the calls whose receive levels are within the range of (Edge HO DL RX_LEV Threshold, Edge HO DL RX_LEV Threshold + Load HO Bandwidth) are handed off the current serving cell.
The value of Load HO Step Level must be smaller than that of the Load HO Bandwidth.
GUI Value Range [1,63]
Default Value 5
Unit dB
Step -
Modification Rules None
Configuration Policy
The setting of this parameter affects the width of the handover strip during load handover.
Recommended Value
5
Parameter Relationship
Load HO Step Period, Load HO Bandwidth
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name MS Fast-moving Watch Cells
Description According to the P/N criterion, if the MS fast passes P cells among the N micro cells, the BSC starts to trigger a fast-moving micro-to-macro cell handover. This parameter corresponds to N of the P/N criterion.
GUI Value Range [1,10]
Default Value 3
Unit None
Step -
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Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
MS Fast-moving Valid Cells
Parent topic: Cell HO Data
Modification Rules None
Configuration Policy
The more the micro cells are configured, the more difficult the fast-moving micro-to-macro cell handover can be triggered.
If this parameter is set to a too great value, the system traffic volume cannot be reduced effectively; if this parameter is set to a too small value, the judgment on whether the MS fast passes a cell may be incorrect.
Recommended Value
3
Parameter Relationship
MS Fast-moving Valid Cells
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name MS Fast-moving Valid Cells
Description According to the P/N criterion, if the MS fast passes P cells among the N micro cells, the BSC starts to trigger a fast-moving micro-to-macro cell handover. This parameter corresponds to P of the P/N criterion.
GUI Value Range [1,10]
Default Value 2
Unit None
Step -
Modification Rules None
Configuration Policy
The more the micro cells are configured, the more difficult the fast-moving micro-to-macro cell handover can be triggered.
Recommended Value
2
Parameter Relationship
MS Fast-moving Watch Cells
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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MS Fast-moving Time Threshold
Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
MAX Consecutive HO Times
Parameter Name MS Fast-moving Time Threshold
Description The time threshold is calculated based on the cell radius (r) and the velocity (v). The threshold equals 2r/v. If the time taken by an MS to pass a cell is smaller than this threshold, the MS is regarded as moving fast. Otherwise, the MS is regarded as moving slow.
GUI Value Range [0,255]
Default Value 15
Unit Seconds
Step -
Modification Rules None
Configuration Policy
When the cell radius is fixed, the smaller the value of this parameter is (the required velocity is higher), the more the difficult fast-moving micro-to-macro cell handover can be triggered.
Recommended Value
15
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution The triggering conditions of fast-moving micro-to-macro cell handover are as follows:
1. The serving cell is not at the fourth layer.
2. The cell that ranks the first in the list of sorted candidate cells is not at the fourth layer.
3. An adjacent cell is a macro cell.
Parameter Name MAX Consecutive HO Times
Description This parameter determines the maximum number of consecutive intra-cell handovers allowed.
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Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Forbidden time after MAX Times
If the interval of two continuous intra-cell handovers is shorter than a specified threshold, the two handovers are regarded as consecutive handovers. If multiple consecutive intra-cell handovers occur, the intra-cell handover is forbidden for a period.
GUI Value Range [1,20]
Default Value 3
Unit Times
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too small value, the intra-cell handover may not be timely; if this parameter is set to a too great value, the system resources may be wasted when intra-cell handovers occur frequently.
Recommended Value
3
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Forbidden time after MAX Times
Description When the number of consecutive intra-cell handovers reaches the maximum allowed, a timer is started to forbid the intra-cell handover.
Intra-cell handovers are allowed only when the timer expires.
GUI Value Range [1,200]
Default Value 20
Unit Seconds
Step -
Modification Rules None
Configuration Policy
This parameter to used to disable the intra-cell handover for a certain period.
Recommended Value
20
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Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Interval for Consecutive HO Jud.
Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Penalty on Fast Moving Handover
Parameter Relationship
Interval for Consecutive HO Jud.
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Interval for Consecutive HO Jud.
Description The two intra-cell handovers that occur during the period specified by this parameter are regarded as consecutive handovers.
GUI Value Range [1,200]
Default Value 6
Unit Seconds
Step -
Modification Rules None
Configuration Policy
This parameter, together with Forbidden time after MAX Times, determines the frequency of intra-cell handovers.
Recommended Value
6
Parameter Relationship
Forbidden time after MAX Times
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Penalty on Fast Moving Handover
Description If an MS is moving fast, the BSC performs penalty on the adjacent cells of the cell where the MS is located. This parameter specifies the penalty value. Only when the MS is located at the Umbrella layer and the adjacent cells are located at the Macro, Micro, or Pico layer, penalty is
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Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Penalty Time on Fast Moving HO(s)
performed.
This parameter is valid within only the Penalty Time on Fast Moving HO.
GUI Value Range [0,63]
Default Value 30
Unit dB
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
30
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Penalty Time on Fast Moving HO(s)
Description This parameter specifies the period in which penalty is performed on the adjacent cells of the cell where a fast-moving MS is located. The adjacent cells must be located at the Macro, Micro, or Pico layer other than the Umbrella layer.
GUI Value Range [0,255]
Default Value 40
Unit Seconds
Step -
Modification Rules None
Configuration Policy
Penalty can be performed on only the cell that is not located at the fourth layer.
Recommended Value
40
Parameter None
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Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
UL Expected Level at HO Access
Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
K Offset
Relationship
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name UL Expected Level at HO Access
Description This parameter specifies the expected uplink receive level on a new channel after an MS is handed over to a new cell. This parameter is used for the MS Power Prediction after HO. This parameter should be consistent with the UL RX_LEV Upper Threshold in Huawei II power control algorithm, thus ensuring a relatively high uplink receive level on the new channel after handover, increasing the transmit power of the MS, and avoiding call drops caused by too low a uplink receive level.
The value of this parameter ranges from 0 to 63 (corresponding to -110 dBm to -47 dBm).
GUI Value Range [0,63]
Default Value 30
Unit Levels
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too small value, call drop may easily occur.
Recommended Value
30
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RX_QUAL Threshold for TIGHT BCCH HO
Parameter Name K Offset
Description This parameter specifies the K offset used in K ranking.
To reduce the ping-pong effect in an handover, you are advised to subtract K Bias from the actual downlink receive level of the candidate cells before ranking their downlink receive level based on the K principle.
GUI Value Range [0,63]
Default Value 0
Unit dB
Step -
Modification Rules None
Configuration Policy
Subtract K Bias from the actual downlink receive level of the candidate cells before ranking their downlink receive level based on the K principle. This parameter affects the ranking of candidate cells. Generally, it is set to 0.
Recommended Value
0
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name RX_QUAL Threshold for TIGHT BCCH HO
Description This parameter specifies the signal quality threshold of the TIGHT BCCH handover. To trigger an intra-cell TIGHT BCCH handover from a TCH to a BCCH, the downlink receive quality should be lower than the RX_QUAL Threshold for TIGHT BCCH HO.
GUI Value Range [0,7]
Default Value 3
Unit None
Step -
Modification Rules None
Configuration None
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Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Load Threshold for TIGHT BCCH HO
Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Max Resend Times of Phy.Info.
Policy
Recommended Value
3
Parameter Relationship
RX_QUAL Threshold for TIGHT BCCH HO, Load Threshold for TIGHT BCCH HO
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Load Threshold for TIGHT BCCH HO
Description This parameter specifies the load threshold of the TIGHT BCCH handover. To trigger an intra-cell TIGHT BCCH handover, the load of the non-BCCH frequencies should be higher than the Load Threshold for TIGHT BCCH HO.
GUI Value Range [0,100]
Default Value 80
Unit %
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
80
Parameter Relationship
RX_QUAL Threshold for TIGHT BCCH HO, Load Threshold for TIGHT BCCH HO
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Parameter Name Max Resend Times of Phy.Info.
Description This parameter specifies the maximum number of Physical information retransmissions. Assume that the maximum number is Ny1. If the number of retransmissions exceeds Ny1 before the BTS receives any correct SAMB frame from the MS, the BTS sends the BSC a connection failure message, which can also be a handover failure message. After receiving the message, the BSC releases the newly assigned dedicated channel and stops the timer T3105.
During asynchronous handover, the MS constantly sends handover access bursts to the BTS. Usually, the Timer T3124 is set to 320 ms. Upon detecting the bursts, the BTS sends a Physical information message to the MS over the main DCCH/FACCH and sends the MSG_ABIS_HO_DETECT message to the BSC. Meanwhile, the timer T3105 starts.
The Physical information containing information about different physical layers guarantees correct MS access. If the timer T3105 expires before the BTS receives the SAMB frame from the MS, the BTS resends the Physical information message to the MS.
For details, see GSM Rec. 08.58 and 04.08.
GUI Value Range [1,255]
Default Value 30
Unit Times
Step -
Modification Rules None
Configuration Policy
The value of this parameter can be increased when handover becomes slow or the handover success rate decreases because of clock problems or poor transmission.An MS can be handed over only when Max Resend Times of Phy Info multiplied by Radio Link Timeout is greater than the interval between EST IND and HO DETECT (120-180 ms). Otherwise, the handover fails.
Recommended Value
30
Parameter Relationship
Radio Link Timeout
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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T3105(10ms)
Parent topic: Cell HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Concentric Data l IniLev For EnUtoO Load HO l UL to OL HO Allowed l OL to UL HO Allowed l RX_LEV for UO HO Allowed l RX_QUAL for UO HO Allowed
Parameter Name T3105(10ms)
Description This parameter specifies the length of timer T3150. For details, see GSM Rec. 08.58 and 04.08.
When the BTS sends physical information to the MS, the BTS starts the timer T3105.If the timer T3105 expires before BTS receives the SAMB frame from MS, BTS resends physical information to MS and restarts the timer T3105. The maximum times for resending physical information is Ny1.
GUI Value Range [0,255]
Default Value 7
Unit Milliseconds
Step 10 ms
Modification Rules None
Configuration Policy
The physical information is sent over the FACCH. Four TDMA frames are sent each time at the interval of 18 ms. If the value of T3105 is smaller than or equal to 18 ms, the BTS needs to retransmit the physical information to the MS when the timer T3105 expires for the first time.If the transmission of the physical information over the FACCH is not complete, the expiration is invalid because the time is shorter than an FACCH period.Considering the previous factors, 20 ms is the reasonable minimum value for this parameter. At present, the default value of this parameter is 70 ms.
Recommended Value
7
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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l TA for UO HO Allowed l UO Signal Intensity Difference l RX_LEV Threshold l RX_LEV Hysteresis l RX_QUAL Threshold l TA Threshold l TA Hysteresis l UO HO Watch Time(s) l UO HO Valid Time(s) l Assign Optimum Layer l Assign-optimum-level Threshold l TA Threshold of Assignment Pref. l TA Pref. of Imme-Assign Allowed l TA Threshold of Imme-Assign Pref. l Pref. Subcell in HO of Intra-BSC l Incoming-to-BSC HO Optimum Layer l OtoU HO Received Level Threshold l UtoO HO Received Level Threshold l UtoO Traffic HO Allowed l Underlay HO Step Period(s) l Underlay HO Step Level l Penalty Time of UtoO HO(s) l Penalty Time after UtoO HO Fail(s) l Penalty Time after OtoU HO Fail(s) l MaxRetry Time after UtoO Fail l En Iuo Out Cell Low Load Threshold l En Iuo Out Cell General OverLoad Threshold l En Iuo Out Cell Serious OverLoad Threshold l En Iuo In Cell Load Classification HO Period l En Iuo In Cell Load Classification HO Step l ReceiveQualThrshAMRFR l ReceiveQualThrshAMRHR l Ps OtoU HO Received Level Threshold l Ps UtoO HO Received Level Threshold
Parent topic: Handover Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
IniLev For EnUtoO Load HO Parameter Name IniLev For EnUtoO Load HO
Description This parameter specifies an initial level for calculating the handover zone of an MS. In an enhanced concentric cell, a handover from the underlaid subcell to the overlaid subcell is performed level by level.
GUI Value Range [0,63]
Default Value 63
Unit Levels
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Parent topic: Concentric Data
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UL to OL HO Allowed
Parent topic: Concentric Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
63
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name UL to OL HO Allowed
Description This parameter specifies whether the handover from the UL subcell to the OL subcell is enabled.
GUI Value Range [No,Yes]
Default Value Yes
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
Yes
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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OL to UL HO Allowed
Parent topic: Concentric Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RX_LEV for UO HO Allowed
Parameter Name OL to UL HO Allowed
Description This parameter specifies whether the handover from the OL subcell to the UL subcell is enabled.
GUI Value Range [No,Yes]
Default Value Yes
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
Yes
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name RX_LEV for UO HO Allowed
Description This parameter specifies whether the downlink receive level is used as a decisive condition for the concentric cell handover.
GUI Value Range [No,Yes]
Default Value Yes
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
Yes
Parameter None
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Parent topic: Concentric Data
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RX_QUAL for UO HO Allowed
Parent topic: Concentric Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
TA for UO HO Allowed
Relationship
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name RX_QUAL for UO HO Allowed
Description This parameter specifies whether the downlink receive quality is used as a decisive condition for the concentric cell handover.
GUI Value Range [No,Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
No
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name TA for UO HO Allowed
Description This parameter specifies whether the TA is used as a decisive condition for the concentric cell handover.
GUI Value Range [No,Yes]
Default Value No
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Parent topic: Concentric Data
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UO Signal Intensity Difference
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
No
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name UO Signal Intensity Difference
Description UO Signal Intensity Difference = UO Amplifier Power Difference + Combiner Insertion Loss Difference + Path Loss Difference of Different Antennas + Pass Loss Difference of Different Frequencies.
Measure the receive level of the UL subcell and OL subcell at several different places if the UL subcell and OL subcell use different antennas. The recommended number of places is five.
The OL subcell and the UL subcell have different transmit power. Therefore, the receive level of the MS in the UL subcell is different from that in the OL subcell. This parameter specifies the power that should be compensated for the OL subcell. The value of this parameter should be the sum of these items: UO Amplifier Power Difference, Combiner Insertion Loss Difference, Path Loss Difference of Different Antennas, and Pass Loss Difference of Different Frequencies.
This value is measured at the site. Multiple-point measurements should be performed when different antennas are used for the OL subcell and UL subcell. If the Enhanced Concentric Allowed parameter is set to Yes, this parameter is invalid. In other words, the power of the OL subcell is not compensated.
GUI Value Range [0,63]
Default Value 0
Unit dB
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Parent topic: Concentric Data
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RX_LEV Threshold
Step -
Modification Rules None
Configuration Policy
Check whether the concentric cell is an enhanced concentric cell. The coverage of the OL subcell and of the UL subcell is determined by different factors.
Recommended Value
0
Parameter Relationship
Enhanced Concentric Allowed
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name RX_LEV Threshold
Description This parameter is one of the parameters that determine the coverage of the OL subcell and UL subcell.
When the Enhanced Concentric Allowed parameter is set to No, the coverage of the OL subcell and UL subcell is determined by RX_LEV Threshold, RX_LEV Hysteresis, RX_QUAL Threshold, TA Threshold, and TA Hysteresis. If the Enhanced Concentric Allowed parameter is set to Yes, this parameter is invalid.
The RX_LEV Threshold parameter refers to the threshold of the downlink receive level.
The level values 0 through 63 map to -110 dBm to -47 dBm.
GUI Value Range [0,63]
Default Value 30
Unit Levels
Step -
Modification Rules None
Configuration Policy
Check whether the concentric cell is an enhanced concentric cell. The coverage of the OL subcell and of the UL subcell is determined by different factors.
Recommended Value
30
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Parent topic: Concentric Data
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RX_LEV Hysteresis
Parent topic: Concentric Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
RX_QUAL Threshold
Parameter Relationship
Enhanced Concentric Allowed
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name RX_LEV Hysteresis
Description This parameter is one of the parameters that determine the coverage of the OL subcell and UL subcell.
When the Enhanced Concentric Allowed parameter is set to No, the coverage of the OL subcell and UL subcell is determined by RX_LEV Threshold, RX_LEV Hysteresis, RX_QUAL Threshold, TA Threshold, and TA Hysteresis. If the Enhanced Concentric Allowed parameter is set to Yes, this parameter is invalid.
GUI Value Range [0,63]
Default Value 5
Unit dB
Step -
Modification Rules None
Configuration Policy
Check whether the concentric cell is an enhanced concentric cell. The coverage of the OL subcell and of the UL subcell is determined by different factors.
Recommended Value
5
Parameter Relationship
Enhanced Concentric Allowed
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Parent topic: Concentric Data
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TA Threshold
Parameter Name RX_QUAL Threshold
Description One of the parameters that determine the coverage of the OL subcell and of the UL subcell. RX_QUAL Threshold = RQ (ranging from level 0 to level 7) x 10.
If the Enhanced Concentric Allowed parameter is set to No, the coverage of the OL subcell and UL subcell is determined by RX_LEV Threshold, RX_LEV Hysteresis, RX_QUAL Threshold, TA Threshold, and TA Hysteresis. If the Enhanced Concentric Allowed parameter is set to Yes, the coverage of the OL subcell and UL subcell is determined by RX_QUAL Threshold, UtoO HO Received Level Threshold, OtoU HO Received Level Threshold, TA Threshold, and TA Hysteresis.
GUI Value Range [0,70]
Default Value 60
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
60
Parameter Relationship
Enhanced Concentric Allowed
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name TA Threshold
Description This parameter is one of the parameters that determine the coverage of the OL subcell and UL subcell.
If the Enhanced Concentric Allowed parameter is set to No, the coverage of the OL subcell and UL subcell is determined by TA Threshold, RX_LEV Threshold, RX_LEV Hysteresis, RX_QUAL Threshold, and TA Hysteresis.
If the Enhanced Concentric Allowed parameter is set to Yes, the coverage of the OL subcell and UL subcell is determined by TA
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Parent topic: Concentric Data
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TA Hysteresis
Threshold, UtoO HO Received Level Threshold, OtoU HO Received Level Threshold, RX_QUAL Threshold, and TA Hysteresis.
TA threshold must be smaller than TA emergency handover threshold.
GUI Value Range [0,255]
Default Value 63
Unit Bit period (a bit period corresponds to 0.55 km)
Step -
Modification Rules None
Configuration Policy
When this parameter is set to 63, if the cell is a common concentric cell, this parameter is not used to determine the coverage of the OL subcell or that of the UL subcell; if the cell is a double-timeslot concentric cell, this parameter is used to determine the coverage of the OL subcell or that of the UL subcell.
Recommended Value
63
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name TA Hysteresis
Description This parameter is one of the parameters that determine the coverage of the OL subcell and UL subcell.
If the Enhanced Concentric Allowed parameter is set to No, the coverage of the OL subcell and UL subcell is determined by TA Hysteresis, RX_LEV Threshold, RX_LEV Hysteresis, RX_QUAL Threshold, and TA Threshold.
If the Enhanced Concentric Allowed parameter is set to Yes, the coverage of the OL subcell and UL subcell is determined by TA Hysteresis, UtoO HO Received Level Threshold, OtoU HO Received Level Threshold, RX_QUAL Threshold, and TA Threshold.
GUI Value Range [0,255]
Default Value 0
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Parent topic: Concentric Data
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UO HO Watch Time(s)
Unit Bit period (a bit period corresponds to 0.55 km)
Step -
Modification Rules None
Configuration Policy
Check whether the concentric cell is an enhanced concentric cell. The coverage of the OL subcell and of the UL subcell is determined by different factors.
Recommended Value
0
Parameter Relationship
Enhanced Concentric Allowed
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name UO HO Watch Time(s)
Description According to the P/N criterion, if the triggering conditions of concentric cell handover are met for P consecutive times within N times, a concentric cell handover is triggered.
This parameter corresponds to N of the P/N criterion.
GUI Value Range [0,16]
Default Value 5
Unit Seconds
Step 1
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the concentric cell handover can be triggered.
Recommended Value
5
Parameter Relationship
UO HO Valid Time(s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Parent topic: Concentric Data
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UO HO Valid Time(s)
Parent topic: Concentric Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Assign Optimum Layer
Parameter Name UO HO Valid Time(s)
Description According to the P/N criterion, if the triggering conditions of concentric cell handover are met for P consecutive times within N times, a concentric cell handover is triggered.
This parameter corresponds to P of the P/N criterion.
GUI Value Range [0,16]
Default Value 4
Unit Seconds
Step 1
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the concentric cell handover can be triggered.
Recommended Value
4
Parameter Relationship
UO HO Watch Time(s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Assign Optimum Layer
Description In a concentric cell, the TCH can be assigned in the following modes:
System Optimization: Based on the measurement reports sent on the SDCCH, the BSC determines which service layer should be preferentially selected.
Underlaid Subcell: The TCH in the UL subcell are preferentially assigned to an MS.
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Parent topic: Concentric Data
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Assign-optimum-level Threshold
Overlaid Subcell: The TCH in the OL subcell are preferentially assigned to an MS.
No preference: A channel is assigned according to general channel assignment algorithms.
GUI Value Range [System Optimization,Overlaid Subcell,Underlaid Subcell,No Preference]
Default Value System Optimization
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
System Optimization
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Assign-optimum-level Threshold
Description If the Assign Optimum Layer parameter is set to System Optimization, the current receive level on the SDCCH can be estimated (by interpolating and filtering) based on the uplink measurement value in the measurement reports sent on the SDCCH. Then, the BSC determines whether a TCH in the UL subcell or in the OL subcell should be assigned based on the result of comparing the uplink receive level on the SDCCH and Assign-optimum-level Threshold, and the result of comparing the TA and TA Threshold of Assignment Pref..
Only when the uplink receive level on the SDCCH is greater than or equal to Assign-optimum-level Threshold and the TA is lower than TA Threshold of Assignment Pref., a TCH in the OL subcell is preferentially assigned to the MS. Otherwise, a TCH in the UL subcell is preferentially assigned to ensure successful assignment.
The level values 0 through 63 map to -110 dBm to -47 dBm.
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TA Threshold of Assignment Pref.
GUI Value Range [0,63]
Default Value 35
Unit Levels
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
35
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name TA Threshold of Assignment Pref.
Description If the Assign Optimum Layer parameter is set to System Optimization, the current receive level on the SDCCH can be estimated (by interpolating and filtering) based on the uplink measurement value in the measurement reports sent on the SDCCH. Then, the BSC determines whether a TCH in the UL subcell or in the OL subcell should be assigned based on the result of comparing the receive level on the SDCCH and Assign-optimum-level Threshold, and the result of comparing the TA and TA Threshold of Assignment Pref..
Only when the receive level on the SDCCH is greater than or equal to Assign-optimum-level Threshold and the TA is lower than TA Threshold of Assignment Pref., a TCH in the OL subcell is preferentially assigned to the MS. Otherwise, a TCH in the UL subcell is preferentially assigned to ensure successful assignment.
GUI Value Range [0,255]
Default Value 63
Unit Bit period (a bit period corresponds to 0.55 km)
Step -
Modification Rules None
Configuration When TA Threshold of Assignment Pref. is set to 0, the TCH in the OL
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Parent topic: Concentric Data
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TA Pref. of Imme-Assign Allowed
Policy subcell cannot be assigned preferentially to the MS because no TA is lower than this threshold. In this case, Assign Optimum Layer is set to Underlaid Subcell.
Recommended Value
63
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name TA Pref. of Imme-Assign Allowed
Description This parameter specifies whether a channel is assigned based on the access_delay in the channel request message during an immediate assignment.
If TA Pref. of Imme-Assign Allowed is set to No, a channel in the UL subcell is preferentially assigned during the immediate assignment.
If TA Pref. of Imme-Assign Allowed is set to Yes and the access_delay in the channel request message is lower than TA Threshold of Imme-Assign Pref., a channel in the OL subcell is preferentially assigned during the immediate assignment. Otherwise, a channel in the UL subcell is preferentially assigned.
GUI Value Range [No,Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
No
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
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Parent topic: Concentric Data
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TA Threshold of Imme-Assign Pref.
Parent topic: Concentric Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Pref. Subcell in HO of Intra-BSC
Caution None
Parameter Name TA Threshold of Imme-Assign Pref.
Description If TA Pref. of Imme-Assign Allowed is set to Yes and the access_delay in the channel request message is lower than TA Threshold of Imme-Assign Pref., a channel in the OL subcell is preferentially assigned during the immediate assignment. Otherwise, a channel in the UL subcell is preferentially assigned.
GUI Value Range [0,255]
Default Value 0
Unit Bit period (a bit period corresponds to 0.55 km)
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
0
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Pref. Subcell in HO of Intra-BSC
Description In a concentric cell, an intra-BSC incoming cell handover request can be processed in one of the following modes:
System Optimization: The measurement level on the BCCH of the target cell is added to the intra-BSC inter-cell handover request messages. Then, the BSC compares the measurement value with RX_LEV Threshold, and determines the preferred service layer. During the
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Parent topic: Concentric Data
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Incoming-to-BSC HO Optimum Layer
comparison and determination, the BSC does not take the RX_LEV Hysteresis into consideration.
Overlaid Subcell: A channel in the OL subcell is preferentially assigned.
Underlaid Subcell: A channel in the UL subcell is preferentially assigned.
No Preference: A channel is assigned according to general channel assignment algorithms.
GUI Value Range [System Optimization,Overlaid Subcell,Underlaid Subcell,No Preference]
Default Value System Optimization
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
System Optimization
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Incoming-to-BSC HO Optimum Layer
Description In a concentric cell, the channel assignment for an incoming-BSC handover can be processed in one of the following modes:
Overlaid Subcell: A channel in the OL subcell is preferentially assigned.
Underlaid Subcell: A channel in the UL subcell is preferentially assigned.
No Preference: A channel is assigned according to general channel assignment algorithms.
GUI Value Range [Overlaid Subcell,Underlaid Subcell,No Preference]
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OtoU HO Received Level Threshold
Default Value Underlaid Subcell
Unit None
Step -
Modification Rules None
Configuration Policy
For the network with a single frequency band, inter-BSC handovers are triggered at the edge of two adjacent cells. Therefore, the recommended value of this parameter is Underlaid Subcell. For a dual-band network (for example, 900/1800 MHz cells), incoming BSC handovers occur frequently and are generally not triggered at the edges of adjacent cells. In this case, the recommended value of this parameter is Overlaid Subcell. In the case that success rate of handovers drops, UL Subcell is preferred for incoming BSC handovers.
Recommended Value
Underlaid Subcell
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name OtoU HO Received Level Threshold
Description This parameter is one of the parameters that determine the coverage of the OL subcell and UL subcell of an enhanced concentric cell.
If the Enhanced Concentric Allowed parameter is set to Yes, the coverage of the OL subcell and UL subcell is determined by OtoU HO Received Level Threshold, UtoO HO Received Level Threshold, RX_QUAL Threshold, TA Threshold, and TA Hysteresis.
The level values 0 through 63 map to -110 dBm to -47 dBm.
GUI Value Range [0,63]
Default Value 20
Unit Levels
Step -
Modification Rules None
Configuration Policy
This parameter is valid in an enhanced concentric cell.
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Parent topic: Concentric Data
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UtoO HO Received Level Threshold
Parent topic: Concentric Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Recommended Value
20
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name UtoO HO Received Level Threshold
Description This parameter is one of the parameters that determine the coverage of the OL subcell and UL subcell of an enhanced concentric cell.
If the Enhanced Concentric Allowed parameter is set to Yes, the coverage of the OL subcell and UL subcell is determined by UtoO HO Received Level Threshold, OtoU HO Received Level Threshold, RX_QUAL Threshold, TA Threshold, and TA Hysteresis.
The level values 0 through 63 map to -110 dBm to -47 dBm.
GUI Value Range [0,63]
Default Value 35
Unit Levels
Step -
Modification Rules None
Configuration Policy
This parameter is valid in an enhanced concentric cell.
Recommended Value
35
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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UtoO Traffic HO Allowed
Parent topic: Concentric Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Parameter Name UtoO Traffic HO Allowed
Description This parameter determines whether the traffic load in the UL subcell determines the UL subcell to OL subcell handover or the OL subcell to UL subcell handover in an enhanced concentric cell.
When this parameter is set to Yes,
If the call is in the OL subcell and if the OL to UL HO Allowed parameter is set to Yes, the OL subcell to UL subcell handover is triggered when the traffic load in the UL subcell is lower than En Iuo Out Cell Low Load Threshold.
If the call is in the UL subcell and the UL subcell to OL subcell handover is triggered, and if the UL to OL HO Allowed parameter is set to Yes, a timer is started when the traffic load in the UL subcell is greater than En Iuo Out Cell General OverLoad Threshold, thus handing over the MSs in the UL subcell to the OL subcell. If the traffic load in the UL subcell is lower than En Iuo Out Cell General OverLoad Threshold, the related timer is stopped, and the MSs in the UL subcell are not handed over to the OL subcell.
When this parameter is set to No, the traffic load in the UL subcell is not taken into account for triggering the UL subcell to OL subcell handover or the OL subcell to UL subcell handover in an enhanced concentric cell.
GUI Value Range [No,Yes]
Default Value Yes
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
Yes
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the Enhanced Concentric Allowed parameter is set to Yes.
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Underlay HO Step Period(s)
Parent topic: Concentric Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Underlay HO Step Level
Parameter Name Underlay HO Step Period(s)
Description When multiple requests for the UL-to-OL handover are sent simultaneously, calls with lower level may be handed over first. This does not conform to the principle that the call of the best quality should be handed over preferentially.
Therefore, the hierarchy handover algorithm is adopted to hand over the calls with higher RX level from the UL subcell to OL subcell. The value of this parameter is the time taken in subtracting Underlay HO Step Level from the signal level of the handover strip.
GUI Value Range [1,255]
Default Value 5
Unit Seconds
Step -
Modification Rules None
Configuration Policy
This parameter is valid only when the Enhanced Concentric Allowed parameter is set to Yes.
Recommended Value
5
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Underlay HO Step Level
Description During the handover from the UL subcell to the OL subcell, the calls are hierarchically handled from level 63 to 0. Therefore, the calls with higher receive level can be handed over to the OL subcell first.
The handover strip is decreased by Underlay HO Step Level every Underlay HO Step Period.
This parameter, together with Underlay HO Step Period, controls the level strip of the handover from the UL subcell to the OL subcell. In
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Parent topic: Concentric Data
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Penalty Time of UtoO HO(s)
other words, the time taken in subtracting Underlay HO Step Level from the handover strip is Underlay HO Step Period.
GUI Value Range [1,63]
Default Value 5
Unit Levels
Step -
Modification Rules None
Configuration Policy
This parameter is valid only when the Enhanced Concentric Allowed parameter is set to Yes.
Recommended Value
5
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Penalty Time of UtoO HO(s)
Description If handover penalty is enabled, when a call is handed over from the OL subcell to the UL subcell, it cannot be handed over back to the OL subcell during Penalty Time of UtoO HO to avoid ping-pong handovers.
If this parameter is set to 0, handover penalty is not performed on the OL subcell to the UL subcell handover.
GUI Value Range [0,255]
Default Value 10
Unit Seconds
Step -
Modification Rules None
Configuration Policy
This parameter is valid only when the Enhanced Concentric Allowed parameter is set to Yes.
Recommended Value
10
Parameter None
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Parent topic: Concentric Data
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Penalty Time after UtoO HO Fail(s)
Parent topic: Concentric Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Penalty Time after OtoU HO Fail(s)
Relationship
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Penalty Time after UtoO HO Fail(s)
Description After a UL subcell to OL subcell handover fails, the call cannot be handed over from the UL subcell to the OL subcell during the Penalty Time after UtoO HO Fail.
GUI Value Range [10,255]
Default Value 40
Unit Seconds
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
40
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Penalty Time after OtoU HO Fail(s)
Description After an OL subcell to UL subcell handover fails, the call cannot be handed over from the OL subcell to the UL subcell during the Penalty Time after OtoU HO Fail.
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Parent topic: Concentric Data
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MaxRetry Time after UtoO Fail
GUI Value Range [0,255]
Default Value 10
Unit Seconds
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
10
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name MaxRetry Time after UtoO Fail
Description When deciding whether a call can be handed over from the UL subcell to the OL subcell, the BSC determines whether the number of handover failures reaches the MaxRetry Time after UtoO Fail. If the number reaches the MaxRetry Time after UtoO Fail, the UL subcell to OL subcell handover is prohibited during the Penalty Time after UtoO HO Fail. Otherwise, the UL subcell to OL subcell handover is allowed.
GUI Value Range [0,8]
Default Value 3
Unit None
Step -
Modification Rules None
Configuration Policy
When the MaxRetry Time after UtoO Fail is set to 0, no penalty related to retry times after UtoO handover failure is imposed. That is, the call can still be handed over to the previous target cell after the penalty time.
Recommended Value
3
Parameter Relationship
None
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Parent topic: Concentric Data
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En Iuo Out Cell Low Load Threshold
Parent topic: Concentric Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
En Iuo Out Cell General OverLoad Threshold
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name En Iuo Out Cell Low Load Threshold
Description If the channel seizure ratio of the UL subcell is smaller than the value of this parameter, some calls in the OL subcell are handed over to the UL subcell.
GUI Value Range [0,100]
Default Value 20
Unit %
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, the traffic load in the UL subcell is increased.
If this parameter is set to a too small value, the traffic load in the OL subcell is increased.
Recommended Value
20
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name En Iuo Out Cell General OverLoad Threshold
Description If the channel seizure ratio of the UL subcell is greater than the value of this parameter, some calls in the UL subcell are handed over to the OL
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Parent topic: Concentric Data
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En Iuo Out Cell Serious OverLoad Threshold
subcell.
GUI Value Range [0,100]
Default Value 70
Unit %
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, the traffic load in the OL subcell is increased.
If this parameter is set to a too small value, the traffic load in the UL subcell is increased.
Recommended Value
70
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name En Iuo Out Cell Serious OverLoad Threshold
Description If the channel seizure ratio of the UL subcell is greater than the value of this parameter, the load handover period from the UL subcell to the OL subcell is decreased by the value of Modified step length of UL load HO period per second on the basis of UL subcell load hierarchical HO period, thus speeding up the load handover from the UL subcell to the OL subcell.
GUI Value Range [0,100]
Default Value 80
Unit %
Step -
Modification Rules None
Configuration Policy
This parameter must be set to a value that is greater than or equal to the En Iuo Out Cell General OverLoad Threshold.
Recommended Value
80
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Parent topic: Concentric Data
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En Iuo In Cell Load Classification HO Period
Parent topic: Concentric Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
En Iuo In Cell Load Classification HO Step
Parameter Relationship
UL subcell load hierarchical HO period(s), Modified step length of UL load HO period(s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name En Iuo In Cell Load Classification HO Period
Description If the channel seizure ratio of the UL subcell is higher than the En Iuo Out Cell Low Load Threshold, all the calls in the OL subcell send handover requests at the same time and the load on the BSC increases in a short time. Thus, congestion may occur in the target cell and call drops may be caused. Through the hierarchical load handover algorithm, the calls in the cell are handed over to the target cell by level.
This parameter specifies the period of load handover for each level.
GUI Value Range [1,255]
Default Value 5
Unit Seconds
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too small value, the traffic load in the UL subcell is heavy, and the OL subcell cannot share the traffic.
Recommended Value
5
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Parent topic: Concentric Data
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ReceiveQualThrshAMRFR
Parameter Name En Iuo In Cell Load Classification HO Step
Description This parameter specifies the hierarchical level step of the load handover from the OL subcell to the UL subcell.
GUI Value Range [0,63]
Default Value 5
Unit dB
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, the traffic load in the UL subcell is heavy, and the OL subcell cannot share the traffic.
Recommended Value
5
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name ReceiveQualThrshAMRFR
Description This parameter specifies the receive quality threshold of the AMR FR voice service. It is used in concentric cell handover decision.
The value of this parameter ranges from 0 to 70, corresponding to RQ (receive quality level 0-7) x 10.
GUI Value Range [0,70]
Default Value 50
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
50
Parameter None
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Parent topic: Concentric Data
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ReceiveQualThrshAMRHR
Parent topic: Concentric Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Ps OtoU HO Received Level Threshold
Relationship
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name ReceiveQualThrshAMRHR
Description This parameter specifies the receive quality threshold of the AMR HR voice service. It is used in concentric cell handover decision. The value of this parameter ranges from 0 to 70, corresponding to RQ (receive quality level 0-7) x 10.
GUI Value Range [0,70]
Default Value 40
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
40
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Ps OtoU HO Received Level Threshold
Description This parameter specifies the receive level threshold of the handover from the OL subcell to the UL subcell of the PS service in the PS concentric algorithm.
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Parent topic: Concentric Data
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Ps UtoO HO Received Level Threshold
GUI Value Range [0,63]
Default Value 25
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
25
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Ps UtoO HO Received Level Threshold
Description This parameter specifies the receive level threshold of the handover from the UL subcell to the OL subcell of the PS service in the PS concentric algorithm.
GUI Value Range [0,63]
Default Value 35
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
35
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
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Parent topic: Concentric Data
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Filter/Penalty Data l Penalty Time on Load HO l Penalty Value on Load HO l Penalty Time on Interfere HO l NCell Filter Length for SDCCH Level l TA Filter Length for SDCCH Level l Allowed M.R Number Lost l Filter Length for TCH Level. l Filter Length for TCH Qual l Filter Length for SDCCH Level. l Filter Length for SDCCH Qual l Filter Length for Ncell RX_LEV l Filter Length for TA l Penalty Level after HO Fail l Penalty Level after BQ HO l Penalty Time after BQ HO(s) l Penalty Level after TA HO l Penalty Time after TA HO(s) l Filter Length for SDCCH MEAN_BEP l Filter Length for TCH MEAN_BEP l Filter Length for SDCCH CV_BEP l Filter Length for TCH CV_BEP l Filter Length for SDCCH REP_QUANT l Filter Length for TCH REP_QUANT l Penalty Time after AMR TCHF-H HO Fail(s) l Filter Length for SDCCH NBR_RCVD_BLOCK l Filter Length for TCH NBR_RCVD_BLOCK l RscPenaltyTimer l UmPenaltyTimer l CfgPenaltyTimer l DtxMeasUsed
Parent topic: Handover Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Penalty Time on Load HO Parameter Name Penalty Time on Load HO
Description After a load handover is successfully performed, the BSC gives a penalty to the original serving cell, that is, subtracts the Penalty Value on Load HO from the level of the original serving cell during the Penalty Time on Load HO.
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Parent topic: Filter/Penalty Data
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Penalty Value on Load HO
GUI Value Range [0,255]
Default Value 10
Unit Seconds
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter, the longer the penalty is given to the original cell and the more difficult the call is to be handed over to the original cell.
Recommended Value
10
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name Penalty Value on Load HO
Description After a load handover is successfully performed, the BSC gives a penalty to the original serving cell, that is, subtracts the Penalty Value on Load HO from the level of the original serving cell during the Penalty Time on Load HO.
GUI Value Range [0,63]
Default Value 63
Unit None
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter, the more difficult the call is to be handed over to the original cell. If this parameter is set to 0, no penalty is given to the original cell. If this parameter is set to 63, the call is hardly handed over to the original cell during the time specified by the Penalty Time on Load HO.
Recommended Value
63
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Parent topic: Filter/Penalty Data
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Penalty Time on Interfere HO
Parent topic: Filter/Penalty Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
NCell Filter Length for SDCCH Level
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name Penalty Time on Interfere HO
Description After an interference handover is successfully performed, the BSC does not permit another interference handover during the Penalty Time on Interfere HO.
GUI Value Range [0,255]
Default Value 15
Unit Seconds
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
15
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name NCell Filter Length for SDCCH Level
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Parent topic: Filter/Penalty Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
TA Filter Length for SDCCH Level
Description This parameter specifies the number of measurement reports used for averaging the signal strength of the signaling channels of neighboring cells.
GUI Value Range [1,31]
Default Value 2
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter should be set to a small value because the SDCCH seizure duration is shorter than the TCH seizure duration for the MS.
Recommended Value
2
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name TA Filter Length for SDCCH Level
Description This parameter specifies the number of measurement reports used for averaging the TA values of the signaling channels of neighboring cells.
GUI Value Range [1,31]
Default Value 2
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter should be set to a small value because the SDCCH seizure duration is shorter than the TCH seizure duration for the MS.
Recommended Value
2
Parameter Relationship
None
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Parent topic: Filter/Penalty Data
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Allowed M.R Number Lost
Parent topic: Filter/Penalty Data
Huawei Proprietary and Confidential
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution This parameter is valid only when the HO Control Switch is set to HO Algorithm II. This parameter is invalid when the HO Control Switch is set to HO Algorithm I.
Parameter Name Allowed M.R Number Lost
Description This parameter specifies the allowed number of consecutive MRs that are lost during interpolation.
If the number of consecutive MRs that are lost is equal to or smaller than the value of this parameter, the linear interpolation processing of the lost MRs is performed according to two consecutive MRs that are lost.
If the number of consecutive MRs that are lost is greater than the value of this parameter, all lost MRs are discarded, and calculations are made again when new MRs are received.
GUI Value Range [0,31]
Default Value 4
Unit None
Step -
Modification Rules None
Configuration Policy
Measurement reports fail to be decoded correctly when the signal strength in the serving cell is poor. When the number of consecutive MRs that are lost is greater than the value of this parameter, all previous measurement reports are discarded and the handover may fail. Therefore, Huawei recommends that this parameter be set to a great value for emergency handovers.
Recommended Value
4
Parameter Relationship
None
BSC Feature Handover and power control
Parameter Class Parameters About Radio Resources
Caution None
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Copyright © Huawei Technologies Co., Ltd.
Filter Length for TCH Level.
Parent topic: Filter/Penalty Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Filter Length for TCH Qual
Parameter Name Filter Length for TCH Level.
Description This parameter specifies the number of measurement reports used for averaging the speech/data TCH signal strength.
GUI Value Range [1,31]
Default Value 6
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter helps to avoid sharp drop of signal levels caused by Raileigh Fading and to ensure correct handover decisions. When this parameter is set to a higher value, the impact of sudden changes is reduced, and the system response is delayed. Thus, the network performance is degraded.
Recommended Value
6
Parameter Relationship
None
BSC Feature Handover and power control
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Filter Length for TCH Qual
Description This parameter specifies the number of measurement reports used for averaging the speech/data TCH signal strength.
This parameter helps to avoid sharp drop of signal levels caused by Raileigh Fading and to ensure correct handover decisions.
GUI Value Range [1,31]
Default Value 6
Unit None
Step -
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Parent topic: Filter/Penalty Data
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Filter Length for SDCCH Level.
Parent topic: Filter/Penalty Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Filter Length for SDCCH Qual
Modification Rules None
Configuration Policy
When this parameter is set to a higher value, the impact of sudden changes is reduced, and the system response is delayed. Thus, the network performance is degraded.
Recommended Value
6
Parameter Relationship
None
BSC Feature Handover and power control
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Filter Length for SDCCH Level.
Description This parameter specifies the number of measurement reports used for averaging the signal strength on the SDCCH.
GUI Value Range [1,31]
Default Value 2
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter should be set to a small value because the SDCCH seizure duration is shorter than the TCH seizure duration for the MS.
Recommended Value
2
Parameter Relationship
None
BSC Feature Handover and power control
Parameter Class Parameters About Radio Resources
Caution None
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Parent topic: Filter/Penalty Data
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Filter Length for Ncell RX_LEV
Parameter Name Filter Length for SDCCH Qual
Description This parameter specifies the number of measurement reports used for averaging the channel quality on the SDCCH.
GUI Value Range [1,31]
Default Value 2
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter should be set to a small value because the SDCCH seizure duration is shorter than the TCH seizure duration for the MS.
Recommended Value
2
Parameter Relationship
None
BSC Feature Handover and power control
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Filter Length for Ncell RX_LEV
Description This parameter specifies the number of MRs used for averaging the signal strength in neighbor cells. This parameter helps to avoid sharp drop of signal levels caused by Raileigh Fading and to ensure correct handover decisions.
GUI Value Range [1,31]
Default Value 4
Unit None
Step -
Modification Rules None
Configuration Policy
When this parameter is set to an excessive value, the impact of sudden changes is reduced, and the system response is delayed. Thus, the network performance is degraded.
Recommended Value
4
Parameter None
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Parent topic: Filter/Penalty Data
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Filter Length for TA
Parent topic: Filter/Penalty Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Penalty Level after HO Fail
Relationship
BSC Feature Handover and power control
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Filter Length for TA
Description This parameter specifies the number of measurement reports used for averaging the timing advance.
The TA value in a single MR may be inaccurate. You can set this parameter to average the TA value in multiple MRs. The average TA value serves as the basis for handover decision.
GUI Value Range [1,31]
Default Value 4
Unit None
Step -
Modification Rules None
Configuration Policy
When this parameter is set to a higher value, the impact of sudden changes is reduced, and the system response is delayed. Thus, the network performance is degraded.
Recommended Value
4
Parameter Relationship
None
BSC Feature Handover and power control
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Penalty Level after HO Fail
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Parent topic: Filter/Penalty Data
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Penalty Level after BQ HO
Description This parameter specifies the penalty level imposed on the target cell.
This parameter is valid only within the duration of the cell penalty time.
The penalty level values 0 through 63 map to -110 dBm to -47 dBm.
GUI Value Range [0,63]
Default Value 30
Unit Levels
Step -
Modification Rules None
Configuration Policy
This parameter specifies the penalty level imposed on a target cell. A penalty level is imposed on a target cell to avoid further attempts when a handover fails due to any of the following reasons: cell congestion, a message indicating internal handover refusal is received, a message indicating Um interface handover failure is received during out-going BSC handover, or a message indicating Um interface handover failure is received during internal handover. This parameter is valid only within the duration of the cell penalty time.
Recommended Value
30
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Penalty Level after BQ HO
Description This parameter specifies the degree of penalty imposed on the original serving cell where an emergency handover associated with bad signal quality is initiated. This parameter is defined to avoid ping-pong handover and is valid only within the Penalty Time after BQ HO.
After an emergency handover is performed due to bad quality, the receive level of the serving cell is decreased by the penalty level. Thus, other cells are given higher priority and handover to the serving cell is not allowed.
The penalty level values 0 through 63 map to -110 dBm to -47 dBm.
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Parent topic: Filter/Penalty Data
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Penalty Time after BQ HO(s)
GUI Value Range [0,63]
Default Value 63
Unit Levels
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a lower value, the MS is likely to be handed over to the original serving cell, thus leading to ping-pong handovers. If this parameter is set to a higher value, the MS is unlikely to be handed over to the original serving cell.
Recommended Value
63
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Penalty Time after BQ HO(s)
Description This parameter specifies the duration of the penalty imposed on the original cell where an emergency handover associated with bad signal quality is initiated.
During the penalty time, the receive level of the original serving cell is decreased by the penalty level. Thus, other cells are given higher priority and handover to the original serving cell is not allowed.
GUI Value Range [0,255]
Default Value 10
Unit Seconds
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a lower value, the MS is likely to be handed over to the original serving cell, thus leading to ping-pong handovers. If this parameter is set to a higher value, the MS is unlikely to be handed over to the original serving cell.
Recommended 10
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Parent topic: Filter/Penalty Data
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Penalty Level after TA HO
Parent topic: Filter/Penalty Data
Value
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Penalty Level after TA HO
Description This parameter specifies the penalty on the signal strength of the original serving cell to avoid ping-pong handovers after an emergency handover due to the timing advance. This parameter is valid only within the Penalty Time after TA HO.
After an emergency handover is performed due to TA, the receive level of the original serving cell is decreased by the penalty level. Thus, other cells are given higher priority and handover to the original serving cell is not allowed.
The penalty level values 0 through 63 map to -110 dBm to -47 dBm.
GUI Value Range [0,63]
Default Value 63
Unit Levels
Step 2dB
Modification Rules None
Configuration Policy
If this parameter is set to a lower value, the MS is likely to be handed over to the original serving cell, thus leading to ping-pong handovers. If this parameter is set to a higher value, the MS is unlikely to be handed over to the original serving cell.
Recommended Value
63
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Penalty Time after TA HO(s)
Parent topic: Filter/Penalty Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Filter Length for SDCCH MEAN_BEP
Parameter Name Penalty Time after TA HO(s)
Description This parameter specifies the duration of the penalty imposed on the original serving cell after an emergency handover due to timing advance is performed.
After an emergency handover is performed due to TA, the receive level of the original serving cell is decreased by the penalty level. Thus, other cells are given higher priority and handover to the original serving cell is not allowed.
GUI Value Range [0,255]
Default Value 30
Unit Seconds
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a lower value, the MS is likely to be handed over to the original serving cell, thus leading to ping-pong handovers. If this parameter is set to a higher value, the MS is unlikely to be handed over to the original serving cell.
Recommended Value
30
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Filter Length for SDCCH MEAN_BEP
Description This parameter specifies the number of Enhanced Measurement Reports used for averaging the MEAN_BEP on the SDCCH.
By setting this parameter, you can use the MEAN_BEP in multiple EMRs, thus avoiding the case that the MEAN_BEP in a single EMR is
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Parent topic: Filter/Penalty Data
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Filter Length for TCH MEAN_BEP
inaccurate.
GUI Value Range [0,31]
Default Value 2
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter should be set to a small value because the SDCCH seizure duration is shorter than the TCH seizure duration for the MS.
Recommended Value
2
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Filter Length for TCH MEAN_BEP
Description This parameter specifies the number of Enhanced Measurement Reports used for averaging the MEAN_BEP on the TCH.
By setting this parameter, you can use the MEAN_BEP in multiple EMRs, thus avoiding the case that the MEAN_BEP in a single EMR is inaccurate.
GUI Value Range [0,31]
Default Value 6
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, the filtered value is more accurate, but the time delay is longer. If this parameter is set to a too small value, the filtered value is inaccurate. Once set, this parameter should not be modified.
Recommended Value
6
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Parent topic: Filter/Penalty Data
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Filter Length for SDCCH CV_BEP
Parent topic: Filter/Penalty Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Filter Length for TCH CV_BEP
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Filter Length for SDCCH CV_BEP
Description This parameter specifies the number of Enhanced Measurement Reports used for averaging the CV_BEP on the SDCCH.
By setting this parameter, you can use the CV_BEP in multiple EMRs, thus avoiding the case that the CV_BEP in a single EMR is inaccurate.
This parameter should be set to a small value because the SDCCH seizure duration is shorter than the TCH seizure duration for the MS.
GUI Value Range [0,31]
Default Value 2
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter should be set to a small value because the SDCCH seizure duration is shorter than the TCH seizure duration for the MS.
Recommended Value
2
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
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Parent topic: Filter/Penalty Data
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Filter Length for SDCCH REP_QUANT
Parameter Name Filter Length for TCH CV_BEP
Description This parameter specifies the number of Enhanced Measurement Reports used for averaging the CV_BEP on the TCH.
By setting this parameter, you can use the CV_BEP in multiple EMRs, thus avoiding the case that the CV_BEP in a single EMR is inaccurate.
GUI Value Range [0,31]
Default Value 6
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, the filtered value is more accurate, but the time delay is longer. If this parameter is set to a too small value, the filtered value is inaccurate. Once set, this parameter should not be modified.
Recommended Value
6
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Filter Length for SDCCH REP_QUANT
Description When the Measurement Report Type is EMR, this parameter specifies the length of the filter for the SDCCH REP_QUANT.
By setting this parameter, you can use the REP_QUANT in multiple EMRs, thus avoiding the case that the REP_QUANT in a single EMR is inaccurate.
GUI Value Range [0,31]
Default Value 2
Unit None
Step -
Modification Rules None
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Parent topic: Filter/Penalty Data
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Filter Length for TCH REP_QUANT
Parent topic: Filter/Penalty Data
Huawei Proprietary and Confidential
Configuration Policy
This parameter should be set to a small value because the SDCCH seizure duration is shorter than the TCH seizure duration for the MS.
Recommended Value
2
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Filter Length for TCH REP_QUANT
Description When the Measurement Report Type is EMR, this parameter specifies the length of the filter for the TCH REP_QUANT.
By setting this parameter, you can use the REP_QUANT in multiple EMRs, thus avoiding the case that the REP_QUANT in a single EMR is inaccurate.
GUI Value Range [0,31]
Default Value 6
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, the filtered value is more accurate, but the time delay is longer. If this parameter is set to a too small value, the filtered value is inaccurate. Once set, this parameter should not be modified.
Recommended Value
6
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
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Copyright © Huawei Technologies Co., Ltd.
Penalty Time after AMR TCHF-H HO Fail(s)
Parent topic: Filter/Penalty Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Filter Length for SDCCH NBR_RCVD_BLOCK
Parameter Name Penalty Time after AMR TCHF-H HO Fail(s)
Description This parameter specifies the penalty time for AMR full rate to half rate (FR-to-HR) handovers. Before the timer expires, no AMR FR-to-HR handover is allowed if the previous FR-to-HR handover fails due to channel unavailability or channel mismatch.
The greater the value of this parameter is, the longer the penalty time after AMR TCHF-H HO Fail is. In other words, triggering AMR handover becomes more difficult.
GUI Value Range [0,255]
Default Value 10
Unit Seconds
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is, the longer the penalty time after AMR TCHF-H HO Fail is. In other words, triggering AMR handover becomes more difficult.
Recommended Value
10
Parameter Relationship
None
BSC Feature AMR
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Filter Length for SDCCH NBR_RCVD_BLOCK
Description When the Measurement Report Type is EMR, this parameter specifies the filter length for the SDCCH NBR_RCVD_BLOCK.
By setting this parameter, you can use the NBR_RCVD_BLOCK in multiple EMRs, thus avoiding the case that the NBR_RCVD_BLOCK in
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Parent topic: Filter/Penalty Data
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Filter Length for TCH NBR_RCVD_BLOCK
a single EMR is inaccurate.
GUI Value Range [0,31]
Default Value 2
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter should be set to a small value because the SDCCH seizure duration is shorter than the TCH seizure duration for the MS.
Recommended Value
2
Parameter Relationship
None
BSC Feature EMR
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Filter Length for TCH NBR_RCVD_BLOCK
Description When the Measurement Report Type is EMR, this parameter specifies the filter length for the TCH NBR_RCVD_BLOCK.
By setting this parameter, you can use the NBR_RCVD_BLOCK in multiple EMRs, thus avoiding the case that the NBR_RCVD_BLOCK in a single EMR is inaccurate.
GUI Value Range [0,31]
Default Value 6
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, the filtered value is more accurate, but the time delay is longer. If this parameter is set to a too small value, the filtered value is inaccurate. Once set, this parameter should not be modified.
Recommended Value
6
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Parent topic: Filter/Penalty Data
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RscPenaltyTimer
Parent topic: Filter/Penalty Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
UmPenaltyTimer
Parameter Relationship
None
BSC Feature EMR
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name RscPenaltyTimer
Description This parameter specifies the value of the timer used for adjacent cell penalty after handover failure due to cell congestion.
GUI Value Range [0,255]
Default Value 5
Unit Seconds
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, the target cell for the previous handover will not be selected for the next handover, but the probability of call drop increases. If this parameter is set to a too small value, the probability of handover failure increases.
Recommended Value
5
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name UmPenaltyTimer
Description This parameter specifies the value of the timer used for adjacent cell penalty after handover failure due to the Um interface error.
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Parent topic: Filter/Penalty Data
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CfgPenaltyTimer
GUI Value Range [0,255]
Default Value 10
Unit Seconds
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, the target cell for the previous handover will not be selected for the next handover, but the probability of call drop increases. If this parameter is set to a too small value, the probability of handover failure increases.
Recommended Value
10
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name CfgPenaltyTimer
Description This parameter specifies the value of the timer used for adjacent cell penalty after handover failure due to data configuration.
GUI Value Range [0,255]
Default Value 255
Unit Seconds
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, the target cell for the previous handover will not be selected for the next handover, but the probability of call drop increases. If this parameter is set to a too small value, the probability of handover failure increases.
Recommended Value
255
Parameter Relationship
None
BSC Feature Handover
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Parent topic: Filter/Penalty Data
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DtxMeasUsed
Parent topic: Filter/Penalty Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name DtxMeasUsed
Description This parameter is used as a switch to control the value determination method of measurement reports. When this parameter is set to Open, if DTX is used, the SUB values in the MR should be selected. Otherwise, the PULL values in the MR should be selected.
GUI Value Range [Close,Open]
Default Value Open
Unit None
Step -
Modification Rules None
Configuration Policy
When this parameter is set to 0 and if the measurement report indicates that DTX is not used, the FULLSET values should be selected. When this parameter is set to 0 and if the measurement report indicates that DTX is used, the SUBSET values should be selected. In latter cases, the SUBSET values should be used irrespective of how DTX is indicated in the subsequent measurement reports.
When this parameter is set to 1, whether the FULLSET values or the SUBSET values should be selected depends on the DTX indication bit in the measurement report. That is, if the measurement report indicates that DTX is used, the SUBSET values should be selected; otherwise, the FULLSET values should be selected.
Recommended Value
Open
Parameter Relationship
None
BSC Feature Handover, power control, discontinuous transmission and discontinuous reception
Parameter Class Parameters About Radio Resources
Caution None
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Emergency HO Data l Emergency HO TA Threshold l DL Qual. Threshold l UL Qual. Threshold l Filter Parameter A1 l Filter Parameter A2 l Filter Parameter A3 l Filter Parameter A4 l Filter Parameter A5 l Filter Parameter A6 l Filter Parameter A7 l Filter Parameter A8 l Filter Parameter B l No Dl Mr.HO Allowed l No Dl Mr.Ul Qual HO Limit l Cons.No Dl Mr.HO Allowed Limit l RXQUAL1 l RXQUAL2 l RXQUAL3 l RXQUAL4 l RXQUAL5 l RXQUAL6 l RXQUAL7 l RXQUAL8 l RXQUAL9 l RXQUAL10 l RXQUAL11 l RXQUAL12 l RXLEVOff l DLQuaLimitAMRFR l ULQuaLimitAMRFR l DLQuaLimitAMRHR l ULQuaLimitAMRHR
Parent topic: Handover Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Emergency HO TA Threshold Parameter Name Emergency HO TA Threshold
Description An emergency handover is triggered when TA is greater than or equal to the value of this parameter.
GUI Value Range [0,255]
Default Value 255
Unit Bit period (A bit period corresponds to 0.55 km.)
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Parent topic: Emergency HO Data
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DL Qual. Threshold
Step -
Modification Rules None
Configuration Policy
This parameter determines the cell coverage for the TA emergency handover. In the areas with small space between BTSs and densely distributed BTSs, the coverage of the cell can be reduced if this parameter is set to a lower value.
Recommended Value
255
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name DL Qual. Threshold
Description This parameter specifies the downlink receive quality threshold of an emergency handover. An emergency handover is triggered when the downlink receive quality is greater than or equal to the DL Qual. Threshold.
When an emergency handover is triggered, an inter-cell handover should be preferentially selected. An intra-cell handover, however, is triggered if no candidate cell is available and if intra-cell handovers are allowed.
GUI Value Range [0,70]
Default Value 55
Unit None
Step -
Modification Rules None
Configuration Policy
The setting of this parameter affects the triggering of BQ handover of non-AMR calls. If it is set to a lower value, the downlink BQ handover is easily triggered.
Recommended Value
When frequency hopping or DTX of the cell is enabled, it is recommended that you set this parameter to 55.
Parameter Relationship
None
BSC Feature Handover
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Parent topic: Emergency HO Data
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UL Qual. Threshold
Parent topic: Emergency HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Filter Parameter A1
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name UL Qual. Threshold
Description This parameter specifies the uplink quality threshold of an emergency handover. An emergency handover due to bad quality is triggered when the uplink receive quality is greater than or equal to the UL Qual. Threshold.
When an emergency handover is triggered, an inter-cell handover should be preferentially selected. An intra-cell handover, however, is triggered if no candidate cell is available and if intra-cell handovers are allowed.
GUI Value Range [0,70]
Default Value 55
Unit None
Step -
Modification Rules None
Configuration Policy
The setting of this parameter affects the triggering of BQ handover of non-AMR calls. If it is set to a lower value, the uplink BQ handover is easily triggered.
Recommended Value
When frequency hopping or DTX of the cell is enabled, it is recommended that you set this parameter to 55.
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Filter Parameter A1
Description This parameter is used for configuring the filter for the rapidly dropped
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Parent topic: Emergency HO Data
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receive level. Together with filter parameter B, it is one of the nine filter parameters. The corresponding formula is as follows (in the program, the value of A1 to A8 can be obtained by subtracting 10 from the configured value, and B is the negative value of the configured value):
C1(nt) = A1 x C(nt) + A2 x C(nt-t) + A3 x C(nt-2t) +…+ A8 x C(nt-7t). Where, C(nt) is the uplink RX_Level of the serving cell in the MR received at the time of nt. If C1(nt) is smaller than B, and if C(nt) is below the Edge HO RX_LEV Thrsh., then the signal level is considered to be rapid dropping.
Filter parameters A1 to A8 may be smaller than or equal to 10. Parameters A1 to A8 correspond to a1 to a8 in the program, and ai = Ai-10 (i = 1-8). Therefore, among a1 to a8 in the program, there must be values smaller than or equal to 0.
For example, if the receive level drops rapidly in a granularity period, you need to set A3 to A8 to 10, A1 to 0, and A2 to 20. In this case, C1(nt) = a1 x C (nt) + a2 x C(nt-t) = 10C(nt-t)-10C(nt). To trigger a rapid level drop handover, you should set C1(nt) to a value smaller than B. and then the fast level drop appears in a MR period. The formula reflects the rapid drop of the cell level in an MR.
You can configure the filter to define the number of MRs used and the extent to which the level drops. However, the setting of this parameter is complicated.
GUI Value Range [0,20]
Default Value 10
Unit None
Step -
Modification Rules None
Configuration Policy
Filter parameters A1 to A8 must meet the following requirement: A1 + A2 + A3 + A4 + A5 + A6 + A7 + A8 = 80. The settings of A1 to A8 reflect the number of MRs in which the receive level drops rapidly.
Recommended Value
10
Parameter Relationship
Filter Parameter B
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
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Filter Parameter A2 Parameter Name Filter Parameter A2
Description This parameter is used for configuring the filter for the rapidly dropped receive level. Together with filter parameter B, it is one of the nine filter parameters. The corresponding formula is as follows (in the program, the value of A1 to A8 can be obtained by subtracting 10 from the configured value, and B is the negative value of the configured value):
C1(nt) = A1 x C(nt) + A2 x C(nt-t) + A3 x C(nt-2t) +…+ A8 x C(nt-7t). Where, C(nt) is the uplink RX_Level of the serving cell in the MR received at the time of nt. If C1(nt) is smaller than B, and if C(nt) is below the Edge HO RX_LEV Thrsh., then the signal level is considered to be rapid dropping.
Filter parameters A1 to A8 may be smaller than or equal to 10. Parameters A1 to A8 correspond to a1 to a8 in the program, and ai = Ai-10 (i = 1-8). Therefore, among a1 to a8 in the program, there must be values smaller than or equal to 0.
For example, if the receive level drops rapidly in a granularity period, you need to set A3 to A8 to 10, A1 to 0, and A2 to 20. In this case, C1(nt) = a1 x C (nt) + a2 x C(nt-t) = 10C(nt-t)-10C(nt). To trigger a rapid level drop handover, you should set C1(nt) to a value smaller than B. and then the fast level drop appears in a MR period. The formula reflects the rapid drop of the cell level in an MR.
You can configure the filter to define the number of MRs used and the extent to which the level drops. However, the setting of this parameter is complicated.
GUI Value Range [0,20]
Default Value 10
Unit None
Step -
Modification Rules None
Configuration Policy
Filter parameters A1 to A8 must meet the following requirement: A1 + A2 + A3 + A4 + A5 + A6 + A7 + A8 = 80. The settings of A1 to A8 reflect the number of MRs in which the receive level drops rapidly.
Recommended Value
10
Parameter Relationship
Filter Parameter B
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO
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Parent topic: Emergency HO Data
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Filter Parameter A3
Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name Filter Parameter A3
Description This parameter is used for configuring the filter for the rapidly dropped receive level. Together with filter parameter B, it is one of the nine filter parameters. The corresponding formula is as follows (in the program, the value of A1 to A8 can be obtained by subtracting 10 from the configured value, and B is the negative value of the configured value):
C1(nt) = A1 x C(nt) + A2 x C(nt-t) + A3 x C(nt-2t) +…+ A8 x C(nt-7t). Where, C(nt) is the uplink RX_Level of the serving cell in the MR received at the time of nt. If C1(nt) is smaller than B, and if C(nt) is below the Edge HO RX_LEV Thrsh., then the signal level is considered to be rapid dropping.
Filter parameters A1 to A8 may be smaller than or equal to 10. Parameters A1 to A8 correspond to a1 to a8 in the program, and ai = Ai-10 (i = 1-8). Therefore, among a1 to a8 in the program, there must be values smaller than or equal to 0.
For example, if the receive level drops rapidly in a granularity period, you need to set A3 to A8 to 10, A1 to 0, and A2 to 20. In this case, C1(nt) = a1 x C (nt) + a2 x C(nt-t) = 10C(nt-t)-10C(nt). To trigger a rapid level drop handover, you should set C1(nt) to a value smaller than B. and then the fast level drop appears in a MR period. The formula reflects the rapid drop of the cell level in an MR.
You can configure the filter to define the number of MRs used and the extent to which the level drops. However, the setting of this parameter is complicated.
GUI Value Range [0,20]
Default Value 10
Unit None
Step -
Modification Rules None
Configuration Policy
Filter parameters A1 to A8 must meet the following requirement: A1 + A2 + A3 + A4 + A5 + A6 + A7 + A8 = 80. The settings of A1 to A8 reflect the number of MRs in which the receive level drops rapidly.
Recommended Value
10
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Filter Parameter A4
Parameter Relationship
Filter Parameter B
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name Filter Parameter A4
Description This parameter is used for configuring the filter for the rapidly dropped receive level. Together with filter parameter B, it is one of the nine filter parameters. The corresponding formula is as follows (in the program, the value of A1 to A8 can be obtained by subtracting 10 from the configured value, and B is the negative value of the configured value):
C1(nt) = A1 x C(nt) + A2 x C(nt-t) + A3 x C(nt-2t) +…+ A8 x C(nt-7t). Where, C(nt) is the uplink RX_Level of the serving cell in the MR received at the time of nt. If C1(nt) is smaller than B, and if C(nt) is below the Edge HO RX_LEV Thrsh., then the signal level is considered to be rapid dropping.
Filter parameters A1 to A8 may be smaller than or equal to 10. Parameters A1 to A8 correspond to a1 to a8 in the program, and ai = Ai-10 (i = 1-8). Therefore, among a1 to a8 in the program, there must be values smaller than or equal to 0.
For example, if the receive level drops rapidly in a granularity period, you need to set A3 to A8 to 10, A1 to 0, and A2 to 20. In this case, C1(nt) = a1 x C (nt) + a2 x C(nt-t) = 10C(nt-t)-10C(nt). To trigger a rapid level drop handover, you should set C1(nt) to a value smaller than B. and then the fast level drop appears in a MR period. The formula reflects the rapid drop of the cell level in an MR.
You can configure the filter to define the number of MRs used and the extent to which the level drops. However, the setting of this parameter is complicated.
GUI Value Range [0,20]
Default Value 10
Unit None
Step -
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Filter Parameter A5
Modification Rules None
Configuration Policy
Filter parameters A1 to A8 must meet the following requirement: A1 + A2 + A3 + A4 + A5 + A6 + A7 + A8 = 80. The settings of A1 to A8 reflect the number of MRs in which the receive level drops rapidly.
Recommended Value
10
Parameter Relationship
Filter Parameter B
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name Filter Parameter A5
Description This parameter is used for configuring the filter for the rapidly dropped receive level. Together with filter parameter B, it is one of the nine filter parameters. The corresponding formula is as follows (in the program, the value of A1 to A8 can be obtained by subtracting 10 from the configured value, and B is the negative value of the configured value):
C1(nt) = A1 x C(nt) + A2 x C(nt-t) + A3 x C(nt-2t) +…+ A8 x C(nt-7t). Where, C(nt) is the uplink RX_Level of the serving cell in the MR received at the time of nt. If C1(nt) is smaller than B, and if C(nt) is below the Edge HO RX_LEV Thrsh., then the signal level is considered to be rapid dropping.
Filter parameters A1 to A8 may be smaller than or equal to 10. Parameters A1 to A8 correspond to a1 to a8 in the program, and ai = Ai-10 (i = 1-8). Therefore, among a1 to a8 in the program, there must be values smaller than or equal to 0.
For example, if the receive level drops rapidly in a granularity period, you need to set A3 to A8 to 10, A1 to 0, and A2 to 20. In this case, C1(nt) = a1 x C (nt) + a2 x C(nt-t) = 10C(nt-t)-10C(nt). To trigger a rapid level drop handover, you should set C1(nt) to a value smaller than B. and then the fast level drop appears in a MR period. The formula reflects the rapid drop of the cell level in an MR.
You can configure the filter to define the number of MRs used and the extent to which the level drops. However, the setting of this parameter is
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Filter Parameter A6
complicated.
GUI Value Range [0,20]
Default Value 10
Unit None
Step -
Modification Rules None
Configuration Policy
Filter parameters A1 to A8 must meet the following requirement: A1 + A2 + A3 + A4 + A5 + A6 + A7 + A8 = 80. The settings of A1 to A8 reflect the number of MRs in which the receive level drops rapidly.
Recommended Value
10
Parameter Relationship
Filter Parameter B
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name Filter Parameter A6
Description This parameter is used for configuring the filter for the rapidly dropped receive level. Together with filter parameter B, it is one of the nine filter parameters. The corresponding formula is as follows (in the program, the value of A1 to A8 can be obtained by subtracting 10 from the configured value, and B is the negative value of the configured value):
C1(nt) = A1 x C(nt) + A2 x C(nt-t) + A3 x C(nt-2t) +…+ A8 x C(nt-7t). Where, C(nt) is the uplink RX_Level of the serving cell in the MR received at the time of nt. If C1(nt) is smaller than B, and if C(nt) is below the Edge HO RX_LEV Thrsh., then the signal level is considered to be rapid dropping.
Filter parameters A1 to A8 may be smaller than or equal to 10. Parameters A1 to A8 correspond to a1 to a8 in the program, and ai = Ai-10 (i = 1-8). Therefore, among a1 to a8 in the program, there must be values smaller than or equal to 0.
For example, if the receive level drops rapidly in a granularity period, you need to set A3 to A8 to 10, A1 to 0, and A2 to 20. In this case, C1
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Filter Parameter A7
(nt) = a1 x C (nt) + a2 x C(nt-t) = 10C(nt-t)-10C(nt). To trigger a rapid level drop handover, you should set C1(nt) to a value smaller than B. and then the fast level drop appears in a MR period. The formula reflects the rapid drop of the cell level in an MR.
You can configure the filter to define the number of MRs used and the extent to which the level drops. However, the setting of this parameter is complicated.
GUI Value Range [0,20]
Default Value 10
Unit None
Step -
Modification Rules None
Configuration Policy
Filter parameters A1 to A8 must meet the following requirement: A1 + A2 + A3 + A4 + A5 + A6 + A7 + A8 = 80. The settings of A1 to A8 reflect the number of MRs in which the receive level drops rapidly.
Recommended Value
10
Parameter Relationship
Filter Parameter B
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name Filter Parameter A7
Description This parameter is used for configuring the filter for the rapidly dropped receive level. Together with filter parameter B, it is one of the nine filter parameters. The corresponding formula is as follows (in the program, the value of A1 to A8 can be obtained by subtracting 10 from the configured value, and B is the negative value of the configured value):
C1(nt) = A1 x C(nt) + A2 x C(nt-t) + A3 x C(nt-2t) +…+ A8 x C(nt-7t). Where, C(nt) is the uplink RX_Level of the serving cell in the MR received at the time of nt. If C1(nt) is smaller than B, and if C(nt) is below the Edge HO RX_LEV Thrsh., then the signal level is considered to be rapid dropping.
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Filter Parameter A8
Filter parameters A1 to A8 may be smaller than or equal to 10. Parameters A1 to A8 correspond to a1 to a8 in the program, and ai = Ai-10 (i = 1-8). Therefore, among a1 to a8 in the program, there must be values smaller than or equal to 0.
For example, if the receive level drops rapidly in a granularity period, you need to set A3 to A8 to 10, A1 to 0, and A2 to 20. In this case, C1(nt) = a1 x C (nt) + a2 x C(nt-t) = 10C(nt-t)-10C(nt). To trigger a rapid level drop handover, you should set C1(nt) to a value smaller than B. and then the fast level drop appears in a MR period. The formula reflects the rapid drop of the cell level in an MR.
You can configure the filter to define the number of MRs used and the extent to which the level drops. However, the setting of this parameter is complicated.
GUI Value Range [0,20]
Default Value 10
Unit None
Step -
Modification Rules None
Configuration Policy
Filter parameters A1 to A8 must meet the following requirement: A1 + A2 + A3 + A4 + A5 + A6 + A7 + A8 = 80. The settings of A1 to A8 reflect the number of MRs in which the receive level drops rapidly.
Recommended Value
10
Parameter Relationship
Filter Parameter B
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name Filter Parameter A8
Description This parameter is used for configuring the filter for the rapidly dropped receive level. Together with filter parameter B, it is one of the nine filter parameters. The corresponding formula is as follows (in the program, the value of A1 to A8 can be obtained by subtracting 10 from the configured value, and B is the negative value of the configured value):
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Filter Parameter B
C1(nt) = A1 x C(nt) + A2 x C(nt-t) + A3 x C(nt-2t) +…+ A8 x C(nt-7t). Where, C(nt) is the uplink RX_Level of the serving cell in the MR received at the time of nt. If C1(nt) is smaller than B, and if C(nt) is below the Edge HO RX_LEV Thrsh., then the signal level is considered to be rapid dropping.
Filter parameters A1 to A8 may be smaller than or equal to 10. Parameters A1 to A8 correspond to a1 to a8 in the program, and ai = Ai-10 (i = 1-8). Therefore, among a1 to a8 in the program, there must be values smaller than or equal to 0.
For example, if the receive level drops rapidly in a granularity period, you need to set A3 to A8 to 10, A1 to 0, and A2 to 20. In this case, C1(nt) = a1 x C (nt) + a2 x C(nt-t) = 10C(nt-t)-10C(nt). To trigger a rapid level drop handover, you should set C1(nt) to a value smaller than B. and then the fast level drop appears in a MR period. The formula reflects the rapid drop of the cell level in an MR.
You can configure the filter to define the number of MRs used and the extent to which the level drops. However, the setting of this parameter is complicated.
GUI Value Range [0,20]
Default Value 10
Unit None
Step -
Modification Rules None
Configuration Policy
Filter parameters A1 to A8 must meet the following requirement: A1 + A2 + A3 + A4 + A5 + A6 + A7 + A8 = 80. The settings of A1 to A8 reflect the number of MRs in which the receive level drops rapidly.
Recommended Value
10
Parameter Relationship
Filter Parameter B
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
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No Dl Mr.HO Allowed
Parameter Name Filter Parameter B
Description This parameter is used for configuring the filter for the rapidly dropped receive level. This parameter indicate specifies the drop trend of the receive level within a period.
If this parameter is set to a higher value, a more rapid level drop is required for triggering a rapid level drop handover. This parameter is used together with the Filter Parameters A1 to A8.
For details, refer to Filter Parameters A1-A8.
GUI Value Range [0,200]
Default Value 0
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a higher value, a more rapid level drop is required for triggering a rapid level drop handover.
Recommended Value
0
Parameter Relationship
Filter Parameter A1 to Filter Parameter A8
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution This parameter is available only when HO Control Switch is set to HO Algorithm I. This parameter is invalid when the HO Control Switch is set to HO Algorithm II.
Parameter Name No Dl Mr.HO Allowed
Description This parameter is used to control the no downlink measurement report handover algorithm.
If this parameter is set to 0, the no downlink measurement report handover algorithm is disabled. Therefore, handover decision related to no downlink measurement report is not allowed in this cell.
If this parameter is set to 1, the no downlink measurement report handover algorithm is enabled. Therefore, handover decision related to no downlink measurement report is allowed in this cell.
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No Dl Mr.Ul Qual HO Limit
GUI Value Range [No,Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter is set according to the traffic volume.
Recommended Value
No
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name No Dl Mr.Ul Qual HO Limit
Description If the downlink MRs are not included in the MRs received, and if the uplink receive quality is greater than or equal to the value of this parameter, a no downlink measurement report emergency handover is triggered.
When an emergency handover is triggered, an inter-cell handover is preferentially selected. An intra-cell handover, however, is triggered if no candidate cell is available and if intra-cell handovers are allowed.
GUI Value Range [0,70]
Default Value 50
Unit None
Step -
Modification Rules None
Configuration Policy
The handover decision is allowed only when the uplink receive quality is greater than or equal to the value of this parameter. Therefore, if this parameter is set to a higher value, the no downlink measurement report handover cannot be triggered.
Recommended Value
50
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Cons.No Dl Mr.HO Allowed Limit
Parent topic: Emergency HO Data
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RXQUAL1
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Cons.No Dl Mr.HO Allowed Limit
Description If the number of consecutive measurement reports without the downlink measurement report is smaller than or equal to the value of this parameter, the handover decision related to no downlink measurement report is allowed.
GUI Value Range [0,64]
Default Value 8
Unit None
Step -
Modification Rules None
Configuration Policy
If the number of consecutive measurement reports without the downlink measurement report is greater than the value of this parameter, the handover decision related to no downlink measurement report is not performed. Therefore, if this parameter is set to a lower value, the no downlink measurement report handover cannot be triggered.
Recommended Value
8
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name RXQUAL1
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RXQUAL2
Description If the receive level of the serving cell is smaller than or equal to 30, and if the uplink or downlink receive quality of the non-AMR FR voice service is greater than or equal to the value of this parameter, uplink interference or downlink interference exists.
The value of this parameter corresponds to multiplying quality level 0 to 7 by 10.
GUI Value Range [0,70]
Default Value 60
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter is used in handover decision. An uplink interference handover is easily triggered if this parameter is set to a too small value.
Recommended Value
60
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name RXQUAL2
Description If the receive level of the serving cell is 31, and if the uplink or downlink receive quality of the non-AMR FR voice service is greater than or equal to the value of this parameter, uplink interference or downlink interference exists.
The value of this parameter corresponds to multiplying quality level 0 to 7 by 10.
GUI Value Range [0,70]
Default Value 50
Unit None
Step -
Modification Rules None
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RXQUAL3
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Configuration Policy
This parameter is used in handover decision. An uplink interference handover is easily triggered if this parameter is set to a too small value.
Recommended Value
50
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name RXQUAL3
Description If the receive level of the serving cell is in the range of 32 to 35, and if the uplink or downlink receive quality of the non-AMR FR voice service is greater than or equal to the value of this parameter, uplink interference or downlink interference exists.
The value of this parameter corresponds to multiplying quality level 0 to 7 by 10.
GUI Value Range [0,70]
Default Value 49
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter is used in handover decision. An uplink interference handover is easily triggered if this parameter is set to a too small value.
Recommended Value
49
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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RXQUAL4
Parent topic: Emergency HO Data
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RXQUAL5
Parameter Name RXQUAL4
Description If the receive level of the serving cell is in the range of 36 to 38, and if the uplink or downlink receive quality of the non-AMR FR voice service is greater than or equal to the value of this parameter, uplink interference or downlink interference exists.
The value of this parameter corresponds to multiplying quality level 0 to 7 by 10.
GUI Value Range [0,70]
Default Value 48
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter is used in handover decision. An uplink interference handover is easily triggered if this parameter is set to a too small value.
Recommended Value
48
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name RXQUAL5
Description If the receive level of the serving cell is in the range of 39 to 41, and if the uplink or downlink receive quality of the non-AMR FR voice service is greater than or equal to the value of this parameter, uplink interference or downlink interference exists.
The value of this parameter corresponds to multiplying quality level 0 to 7 by 10.
GUI Value Range [0,70]
Default Value 47
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RXQUAL6
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter is used in handover decision. An uplink interference handover is easily triggered if this parameter is set to a too small value.
Recommended Value
47
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name RXQUAL6
Description If the receive level of the serving cell is in the range of 42 to 45, and if the uplink or downlink receive quality of the non-AMR FR voice service is greater than or equal to the value of this parameter, uplink interference or downlink interference exists.
The value of this parameter corresponds to multiplying quality level 0 to 7 by 10.
GUI Value Range [0,70]
Default Value 46
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter is used in handover decision. An uplink interference handover is easily triggered if this parameter is set to a too small value.
Recommended Value
46
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
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RXQUAL7
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RXQUAL8
Caution None
Parameter Name RXQUAL7
Description If the receive level of the serving cell is in the range of 46 to 48, and if the uplink or downlink receive quality of the non-AMR FR voice service is greater than or equal to the value of this parameter, uplink interference or downlink interference exists.
The value of this parameter corresponds to multiplying quality level 0 to 7 by 10.
GUI Value Range [0,70]
Default Value 45
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter is used in handover decision. An uplink interference handover is easily triggered if this parameter is set to a too small value.
Recommended Value
45
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name RXQUAL8
Description If the receive level of the serving cell is in the range of 49 to 52, and if the uplink or downlink receive quality of the non-AMR FR voice service is greater than or equal to the value of this parameter, uplink interference or downlink interference exists.
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RXQUAL9
The value of this parameter corresponds to multiplying quality level 0 to 7 by 10.
GUI Value Range [0,70]
Default Value 44
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter is used in handover decision. An uplink interference handover is easily triggered if this parameter is set to a too small value.
Recommended Value
44
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name RXQUAL9
Description If the receive level of the serving cell is in the range of 53 to 55, and if the uplink or downlink receive quality of the non-AMR FR voice service is greater than or equal to the value of this parameter, uplink interference or downlink interference exists.
The value of this parameter corresponds to multiplying quality level 0 to 7 by 10.
GUI Value Range [0,70]
Default Value 43
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter is used in handover decision. An uplink interference handover is easily triggered if this parameter is set to a too small value.
Recommended Value
43
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RXQUAL10
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RXQUAL11
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name RXQUAL10
Description If the receive level of the serving cell is in the range of 56 to 58, and if the uplink or downlink receive quality of the non-AMR FR voice service is greater than or equal to the value of this parameter, uplink interference or downlink interference exists.
The value of this parameter corresponds to multiplying quality level 0 to 7 by 10.
GUI Value Range [0,70]
Default Value 42
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter is used in handover decision. An uplink interference handover is easily triggered if this parameter is set to a too small value.
Recommended Value
42
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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RXQUAL12
Parameter Name RXQUAL11
Description If the receive level of the serving cell is in the range of 59 to 62, and if the uplink or downlink receive quality of the non-AMR FR voice service is greater than or equal to the value of this parameter, uplink interference or downlink interference exists.
The value of this parameter corresponds to multiplying quality level 0 to 7 by 10.
GUI Value Range [0,70]
Default Value 41
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter is used in handover decision. An uplink interference handover is easily triggered if this parameter is set to a too small value.
Recommended Value
41
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name RXQUAL12
Description If the receive level of the serving cell is greater than or equal to 63, and if the uplink or downlink receive quality of the non-AMR FR voice service is greater than or equal to the value of this parameter, uplink interference or downlink interference exists.
The value of this parameter corresponds to multiplying quality level 0 to 7 by 10.
GUI Value Range [0,70]
Default Value 40
Unit None
Step -
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Parent topic: Emergency HO Data
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RXLEVOff
Modification Rules None
Configuration Policy
This parameter is used in handover decision. An uplink interference handover is easily triggered if this parameter is set to a too small value.
Recommended Value
40
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name RXLEVOff
Description This parameter specifies the quality level offset of the interface handover of the AMR FR service relative to non-AMR services or the AMR HR service (x 10). When determining whether an interference handover should be triggered, the system compares the receive quality of the MS minus the RXLEVOff with the handover threshold.
For the AMR calls, this parameter, together with RXQUALn, is used in interference handover decision. An uplink interference handover is easily triggered if this parameter is set to a small value.
When n = 1, that is, when the receive level of the serving cell is smaller than or equal to 30, this parameter is invalid.
GUI Value Range [0,70]
Default Value 5
Unit None
Step -
Modification Rules None
Configuration Policy
For the AMR calls, this parameter, together with RXQUALn, is used in interference handover decision. An uplink interference handover is easily triggered if this parameter is set to a small value.
Recommended Value
5
Parameter Relationship
RXQUALn
BSC Feature Handover
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Parent topic: Emergency HO Data
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DLQuaLimitAMRFR
Parent topic: Emergency HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
ULQuaLimitAMRFR
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name DLQuaLimitAMRFR
Description The value of this parameter corresponds to multiplying quality level 0 to 7 by 10. An emergency handover can be triggered only when the downlink receive quality of the MS is greater than the value of this parameter.
GUI Value Range [0,70]
Default Value 60
Unit None
Step -
Modification Rules None
Configuration Policy
The setting of this parameter affects the triggering of BQ handover of AMR FR calls. If it is set to a too small value, the downlink BQ handover is easily triggered.
Recommended Value
60
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name ULQuaLimitAMRFR
Description The value of this parameter corresponds to multiplying quality level 0 to 7 by 10. An emergency handover can be triggered only when the uplink receive quality of the MS is greater than the value of this parameter.
GUI Value Range [0,70]
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Parent topic: Emergency HO Data
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DLQuaLimitAMRHR
Default Value 60
Unit None
Step -
Modification Rules None
Configuration Policy
The setting of this parameter affects the triggering of BQ handover of AMR FR calls. If it is set to a too small value, the uplink BQ handover is easily triggered.
Recommended Value
60
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name DLQuaLimitAMRHR
Description The value of this parameter corresponds to multiplying quality level 0 to 7 by 10. An emergency handover can be triggered only when the downlink receive quality of the MS is greater than the value of this parameter.
GUI Value Range [0,70]
Default Value 55
Unit None
Step -
Modification Rules None
Configuration Policy
The setting of this parameter affects the triggering of BQ handover of AMR HR calls. If it is set to a too small value, the downlink BQ handover is easily triggered.
Recommended Value
55
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
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Parent topic: Emergency HO Data
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ULQuaLimitAMRHR
Parent topic: Emergency HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
UTRAN FDD HO Data l Inter-RAT HO Preference l HO Preference Threshold for 2G Cell l RSCP Threshold for Better 3G Cell HO l Ec/No Threshold for Better 3G Cell HO l 3G Better Cell HO Watch Time(s) l 3G Better Cell HO Valid Time(s) l Better 3G Cell HO Allowed
Parent topic: Handover Data
Caution None
Parameter Name ULQuaLimitAMRHR
Description The value of this parameter corresponds to multiplying quality level 0 to 7 by 10. An emergency handover can be triggered only when the uplink receive quality of the MS is greater than the value of this parameter.
GUI Value Range [0,70]
Default Value 55
Unit None
Step -
Modification Rules None
Configuration Policy
The setting of this parameter affects the triggering of BQ handover of AMR HR calls. If it is set to a too small value, the uplink BQ handover is easily triggered.
Recommended Value
55
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Inter-RAT HO Preference
Parent topic: UTRAN FDD HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
HO Preference Threshold for 2G Cell
Parameter Name Inter-RAT HO Preference
Description This parameter specifies whether an MS is preferentially handed over to a 2G cell or to a 3G cell.
GUI Value Range [Preference for 2G Cell,Preference for 3G Cell,Preference for 2G Cell By Threshold]
Default Value Preference for 2G Cell By Threshold
Unit None
Step -
Modification Rules None
Configuration Policy
During the handover decision:
If this parameter is set to Preference for 2G Cell, the BSC first selects the target handover cell from the 2G candidate cells.
If this parameter is set to Preference for 3G Cell, the BSC first selects the target handover cell from the 3G candidate cells.
If this parameter is set to Preference for 2G Cell By Threshold, and if the receive level of the first candidate cell among 2G candidate cells is lower than or equal to HO Preference Threshold for 2G Cell, the 3G cell handover is preferred. Otherwise, the 2G cell handover is preferred.
Recommended Value
Preference for 2G Cell By Threshold
Parameter Relationship
None
BSC Feature Handover, 2G/3G interoperability
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name HO Preference Threshold for 2G Cell
Description If the Inter-RAT HO Preference parameter is set to Preference for 2G Cell By Threshold, and if the receive level of the first candidate cell
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Parent topic: UTRAN FDD HO Data
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RSCP Threshold for Better 3G Cell HO
among 2G candidate cells is lower than or equal to the HO Preference Threshold for 2G Cell, the 3G cell handover is preferred. Otherwise, the 2G cell handover is preferred.
The level values 0 through 63 map to -110 dBm to -47 dBm.
GUI Value Range [0,63]
Default Value 25
Unit Levels
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is, the more difficult for the BSC to hand over the MS to a 2G cell and the easier for the BSC to hand over the MS to an FDD 3G cell.
Recommended Value
25
Parameter Relationship
None
BSC Feature Handover, 2G/3G interoperability
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name RSCP Threshold for Better 3G Cell HO
Description If both Inter-RAT Out BSC Handover Enable and Better 3G Cell HO Allowed are set to Yes, a 3G better cell handover is triggered when the RSCP of an adjacent 3G cell is greater than RSCP Threshold for Better 3G Cell HO during a period of time.
GUI Value Range [0,63]
Default Value 50
Unit Levels
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the 3G better cell handover can be triggered.
Recommended Value
50
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Parent topic: UTRAN FDD HO Data
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Ec/No Threshold for Better 3G Cell HO
Parent topic: UTRAN FDD HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
3G Better Cell HO Watch Time(s)
Parameter Relationship
Better 3G Cell HO Allowed, Inter-RAT Out BSC Handover Enable
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Ec/No Threshold for Better 3G Cell HO
Description If both Inter-RAT Out BSC Handover Enable and Better 3G Cell HO Allowed are set to Yes, a 3G better cell handover is triggered when the Ec/No of an adjacent 3G cell is greater than Ec/No Threshold for Better 3G Cell HO during a period of time.
The level values 0 to 49 map to -24 dB to 0 dB.
GUI Value Range [0,49]
Default Value 35
Unit Levels
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the 3G better cell handover can be triggered.
Recommended Value
35
Parameter Relationship
Better 3G Cell HO Allowed, Inter-RAT Out BSC Handover Enable
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name 3G Better Cell HO Watch Time(s)
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Parent topic: UTRAN FDD HO Data
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3G Better Cell HO Valid Time(s)
Description According to the P/N criterion, if the triggering conditions of 3G better cell handover are met for P consecutive times within N times, a 3G better cell handover is triggered.
This parameter corresponds to N of the P/N criterion.
GUI Value Range [1,16]
Default Value 5
Unit Seconds
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the 3G better cell handover can be triggered.
Recommended Value
5
Parameter Relationship
3G Better Cell HO Valid Time(s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name 3G Better Cell HO Valid Time(s)
Description According to the P/N criterion, if the triggering conditions of 3G better cell handover are met for P consecutive times within N times, a 3G better cell handover is triggered.
This parameter corresponds to P of the P/N criterion.
GUI Value Range [1,16]
Default Value 4
Unit Seconds
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the 3G better cell handover can be triggered.
Recommended Value
4
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Parent topic: UTRAN FDD HO Data
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Better 3G Cell HO Allowed
Parent topic: UTRAN FDD HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
UTRAN TDD HO Data l TDD Inter-RAT HO Preference l TDD HO Preference Threshold for 2G Cell
Parameter Relationship
3G Better Cell HO Watch Time(s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Better 3G Cell HO Allowed
Description This parameter specifies whether the 3G better cell handover algorithm is allowed.
Yes: The 3G better cell handover algorithm is allowed.
No: The 3G better cell handover algorithm is forbidden.
GUI Value Range [No,Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter must be set to Yes when 2G/3G network is applied.
Recommended Value
No
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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l TDD RSCP Threshold for Better 3G Cell HO l TDD 3G Better Cell HO Watch Time(s) l TDD 3G Better Cell HO Valid Time(s) l TDD Better 3G Cell HO Allowed
Parent topic: Handover Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
TDD Inter-RAT HO Preference
Parent topic: UTRAN TDD HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
TDD HO Preference Threshold for 2G Cell
Parameter Name TDD Inter-RAT HO Preference
Description This parameter specifies whether an MS is preferentially handed over to a 2G cell or to a 3G cell.
GUI Value Range [Preference for 2G Cell,Preference for 3G Cell,Preference for 2G Cell By Threshold]
Default Value Preference for 2G Cell By Threshold
Unit None
Step -
Modification Rules None
Configuration Policy
During a handover decision, if this parameter is set to Preference for 2G Cell, the BSC first selects the target handover cell from the 2G candidate cells; If this parameter is set to Preference for 3G Cell, the BSC first selects the target handover cell from the 3G candidate cells; If this parameter is set to Preference for 2G Cell By Threshold, and if the receive level of the first candidate cell among 2G candidate cells is lower than or equal to HO Preference Threshold for 2G Cell, the 3G cell handover is preferred. Otherwise, the 2G cell handover is preferred.
Recommended Value
Preference for 2G Cell By Threshold
Parameter Relationship
None
BSC Feature Handover, 2G/3G interoperability
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name TDD HO Preference Threshold for 2G Cell
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Parent topic: UTRAN TDD HO Data
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TDD RSCP Threshold for Better 3G Cell HO
Description If the Inter-RAT HO Preference parameter is set to Preference for 2G Cell By Threshold, and if the receive level of the first candidate cell among 2G candidate cells is lower than or equal to the HO Preference Threshold for 2G Cell, the 3G cell handover is preferred. Otherwise, the 2G cell handover is preferred.
The level values 0 through 63 map to -110 dBm to -47 dBm.
GUI Value Range [0,63]
Default Value 25
Unit Levels
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter, the more difficult for the BSC to hand over the MS to a 2G cell and the easier for the BSC to hand over the MS to a TDD 3G cell.
Recommended Value
25
Parameter Relationship
None
BSC Feature Handover, 2G/3G interoperability
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name TDD RSCP Threshold for Better 3G Cell HO
Description If both the Inter-RAT Out BSC Handover Enable and the Better 3G Cell HO Allowed parameters are set to Yes, a 3G better cell handover is triggered when the RSCP of an adjacent 3G cell is greater than the TDD RSCP Threshold for Better 3G Cell HO during a period of time.
GUI Value Range [0,63]
Default Value 50
Unit Levels
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the 3G better cell handover can be triggered.
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Parent topic: UTRAN TDD HO Data
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TDD 3G Better Cell HO Watch Time(s)
Parent topic: UTRAN TDD HO Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
TDD 3G Better Cell HO Valid Time(s)
Recommended Value
50
Parameter Relationship
Inter-RAT Out BSC Handover Enable, TDD Better 3G Cell HO Allowed
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name TDD 3G Better Cell HO Watch Time(s)
Description According to the P/N criterion, if the triggering conditions of TDD 3G better cell handover are met for P consecutive times within N times, a TDD 3G better cell handover is triggered.
This parameter corresponds to N of the P/N criterion.
GUI Value Range [1,16]
Default Value 5
Unit Seconds
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the TDD 3G better cell handover can be triggered.
Recommended Value
5
Parameter Relationship
TDD 3G Better Cell HO Valid Time(s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Parent topic: UTRAN TDD HO Data
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TDD Better 3G Cell HO Allowed
Parameter Name TDD 3G Better Cell HO Valid Time(s)
Description According to the P/N criterion, if the triggering conditions of TDD 3G better cell handover are met for P consecutive times within N times, a TDD 3G better cell handover is triggered.
This parameter corresponds to P of the P/N criterion.
GUI Value Range [1,16]
Default Value 4
Unit Seconds
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the TDD 3G better cell handover can be triggered.
Recommended Value
4
Parameter Relationship
TDD 3G Better Cell HO Watch Time(s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name TDD Better 3G Cell HO Allowed
Description This parameter specifies whether the 3G better cell handover algorithm is allowed.
Yes: The 3G better cell handover algorithm is allowed.
No: The 3G better cell handover algorithm is forbidden.
GUI Value Range [No,Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter can be set to Yes when 2G/3G network is applied.
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Parent topic: UTRAN TDD HO Data
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Fast HO Parameters l Quick Handover Up Trigger Level(dB) l Quick Handover Down Trigger Level(dB) l Quick Move Speed Threshold(m/s) l Quick Handover Static Time(0.5s) l Quick Handover Last Time (0.5s) l Serving Cell Filter Length MR Number l Neighbor Cell Filter Length MR Number l Number of Ignored Measurement Reports l Quick Handover Punish Time(s) l Quick Handover Punish Value(dB) l Quick Handover Offset(dB) l Enable Quick PBGT HO Algorithm When MS Leaves BTS
Parent topic: Handover Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Quick Handover Up Trigger Level(dB)
Recommended Value
No
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Quick Handover Up Trigger Level(dB)
Description During a measurement period, if the filtered uplink level of the serving cell is smaller than the value of this parameter, a quick handover is triggered.
The level values 0 through 63 map to -110 dBm to -47 dBm.
GUI Value Range [0,63]
Default Value 50
Unit Levels
Step -
Modification Rules None
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Parent topic: Fast HO Parameters
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Quick Handover Down Trigger Level(dB)
Parent topic: Fast HO Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Configuration Policy
None
Recommended Value
50
Parameter Relationship
This parameter is used in combination with the following parameters: Quick Handover Static Time(0.5s), Quick Move Speed Threshold(m/s), Quick Handover Last Time (0.5s), and Quick Handover Offset(dB).
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Quick Handover Down Trigger Level(dB)
Description During a measurement period, if the compensated downlink level of the serving cell is smaller than the value of this parameter, a quick handover is triggered.
The level values 0 through 63 map to -110 dBm to -47 dBm.
GUI Value Range [0,63]
Default Value 50
Unit Levels
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
50
Parameter Relationship
This parameter is used in combination with the following parameters: Quick Handover Static Time(0.5s), Quick Move Speed Threshold(m/s), Quick Handover Last Time (0.5s), and Quick Handover Offset(dB).
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Quick Move Speed Threshold(m/s)
Parent topic: Fast HO Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Quick Handover Static Time(0.5s)
Parameter Name Quick Move Speed Threshold(m/s)
Description During a measurement period, if the MS moves at a speed greater than the value of this parameter, a quick handover is triggered.
GUI Value Range [0,600]
Default Value 35
Unit m/s
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
35
Parameter Relationship
This parameter is used in combination with the following parameters: Quick Handover Static Time(0.5s), Quick Move Speed Threshold(m/s), Quick Handover Last Time (0.5s), and Quick Handover Offset(dB).
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Quick Handover Static Time(0.5s)
Description The quick handover must comply with the P/N criterion. That is, the triggering conditions of quick handover must be met for P consecutive times within N times.
This parameter corresponds to N of the P/N criterion. That is, if the triggering conditions of quick handover is met for a period longer than or equal to the value of this parameter, a quick handover is triggered.
GUI Value Range [1,32]
Default Value 4
Unit Seconds
Step 0.5s
Modification Rules None
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Parent topic: Fast HO Parameters
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Quick Handover Last Time (0.5s)
Parent topic: Fast HO Parameters
Configuration Policy
The greater the value of this parameter is set, the more difficult the fast-moving handover can be triggered.
Recommended Value
4
Parameter Relationship
This parameter is used in combination with the following parameters: Quick Move Speed Threshold(m/s), Quick Handover Last Time (0.5s), and Quick Handover Offset(dB).
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Quick Handover Last Time (0.5s)
Description The quick handover must comply with the P/N criterion. That is, the triggering conditions of quick handover must be met for P consecutive times within N times.
This parameter corresponds to P of the P/N criterion, that is, the period during which the triggering conditions of quick handover are met. Such a period is within the value defined by this parameter.
GUI Value Range [1,32]
Default Value 3
Unit Seconds
Step 0.5s
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the fast-moving handover can be triggered.
Recommended Value
3
Parameter Relationship
This parameter is used in combination with the following parameters: Quick Handover Static Time(0.5s), Quick Move Speed Threshold(m/s), and Quick Handover Offset(dB).
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Serving Cell Filter Length MR Number
Parent topic: Fast HO Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Neighbor Cell Filter Length MR Number
Parameter Name Serving Cell Filter Length MR Number
Description This parameter specifies the number of measurement reports used for filtering after the BSC receives the measurement reports of the serving cell from the BTS. This helps to avoid improper handover decision based on a single inaccurate measurement report.
GUI Value Range [1,20]
Default Value 4
Unit None
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, the filtered value is more accurate, but the time delay is longer. If this parameter is set to a too small value, the filtered value is inaccurate.
Recommended Value
4
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Neighbor Cell Filter Length MR Number
Description This parameter specifies the number of measurement reports used for filtering after the BSC receives the measurement reports of the adjacent cell from the BTS. This helps to avoid improper handover decision based on a single inaccurate measurement report.
GUI Value Range [1,20]
Default Value 4
Unit None
Step -
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Parent topic: Fast HO Parameters
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Number of Ignored Measurement Reports
Parent topic: Fast HO Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, the filtered value is more accurate, but the time delay is longer. If this parameter is set to a too small value, the filtered value is inaccurate.
Recommended Value
4
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Number of Ignored Measurement Reports
Description This parameter specifies the allowed number of invalid measurement reports when the BSC uses the measurement reports for filtering. If the number of received measurement reports is smaller than or equal to the value of this parameter, no filtering is performed and no quick handover decision is made.
GUI Value Range [0,32]
Default Value 1
Unit None
Step -
Modification Rules None
Configuration Policy
This parameter can only be applied to the fast-moving handover.
Recommended Value
1
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Quick Handover Punish Time(s)
Parent topic: Fast HO Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Quick Handover Punish Value(dB)
Parameter Name Quick Handover Punish Time(s)
Description This parameter specifies the duration of penalty that is performed on the original serving cell after a successful quick handover.
GUI Value Range [0,255]
Default Value 10
Unit Seconds
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
10
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Quick Handover Punish Value(dB)
Description This parameter specifies the penalty that is imposed on the downlink level of the originating cell after a successful quick handover.
GUI Value Range [0,63]
Default Value 63
Unit dB
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
63
Parameter None
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Parent topic: Fast HO Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Quick Handover Offset(dB)
Parent topic: Fast HO Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Relationship
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Quick Handover Offset(dB)
Description During a measurement period, a quick handover can be triggered only if the difference of path loss between a chain adjacent cell and the serving cell is greater than or equal to the value of this parameter.
The level values 0 to 127 map to -64 dB to 63 dB.
GUI Value Range [0,127]
Default Value 68
Unit dB
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
68
Parameter Relationship
This parameter is used in combination with the following parameters: Quick Handover Up Trigger Level(dB) or Quick Handover Down Trigger Level(dB),
Quick Handover Static Time(0.5s)
, Quick Move Speed Threshold(m/s),
and Quick Handover Last Time (0.5s).
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Enable Quick PBGT HO Algorithm When MS Leaves BTS
Parent topic: Fast HO Parameters
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Enhance dual band data l UL Subcell Lower Load Threshold(%) l Assignment Optimization of UL Subcell Allowed Or Not l Assignment Optimization of OL Subcell Allowed Or Not l UL Subcell General Overload Threshold(%) l UL Subcell Serious Overload Threshold(%) l Allowed Flow Control Level of UL And OL Subcell HO l Distance Between Boundaries of UL And OL Subcells(dB) l Distance Hysteresis Between Boundaries of UL And OL Subcells(dB) l Load HO From UL Subcell to OL Subcell Allowed l UL Subcell Load Hierarchical HO Period(s) l Step Length of UL Subcell Load HO(dB) l Modified Step Length of UL Load HO Period(s) l Load HO of OL Subcell to UL Subcell Enabled l OL Subcell Load Diversity HO Period(s) l Step Length of OL Subcell Load HO(dB) l Incoming OL Subcell HO level Threshold(dB) l Outgoing OL Subcell HO level Threshold(dB)
Parameter Name Enable Quick PBGT HO Algorithm When MS Leaves BTS
Description This parameter specifies whether to enable the quick PBGT algorithm when an MS leaves the BTS.
GUI Value Range [No,Yes]
Default Value No
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
None
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
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l Inter UL And OL Subcells HO Penalty Time(s) l Total Number of Measurements(s) l Number of Satisfactory Measurements(s) l Inner Cell EDGE HO Enable l Inner Cell Serious OverLoad Threshold(%)
Parent topic: Handover Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
UL Subcell Lower Load Threshold(%)
Parent topic: Enhance dual band data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Assignment Optimization of UL Subcell Allowed Or Not
Parameter Name UL Subcell Lower Load Threshold(%)
Description In an enhanced dualband cell, if TCH seizure ratio of the UL subcell is smaller than the value of this parameter, some calls of the OL subcell is handed over to the UL subcell. Moreover, the MS that sends the channel request message in the OL subcell is preferentially assigned to the UL subcell.
GUI Value Range [0,100]
Default Value 50
Unit %
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, the traffic load in the UL subcell is increased.
If this parameter is set to a too small value, the traffic load in the OL subcell is increased.
Recommended Value
50
Parameter Relationship
UL Subcell Lower Load Threshold(%) < UL subcell general overload threshold(%) < UL subcell serious overload threshold(%)
BSC Feature Channel management, handover
Parameter Class Parameters About Radio Resources
Caution None
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Parent topic: Enhance dual band data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Assignment Optimization of OL Subcell Allowed Or Not
Parameter Name Assignment Optimization of UL Subcell Allowed Or Not
Description This parameter specifies whether the access request in the UL subcell is preferentially processed over the access request in OL subcell according to the UL subcell general overload threshold. If the traffic load in the UL subcell is higher than the UL subcell general overload threshold, the MS access to the UL subcell is preferentially assigned to the OL subcell. This parameter is applied to the enhanced dualband cell.
GUI Value Range [No,Yes]
Default Value Yes
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
Yes
Parameter Relationship
None
BSC Feature Channel management, handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Assignment Optimization of OL Subcell Allowed Or Not
Description This parameter specifies whether the channel request in the OL subcell is preferentially processed over the channel request the UL subcell according to the UL Subcell Lower Load Threshold. If the traffic load in the UL subcell is lower than the UL Subcell Lower Load Threshold, the MS access to the OL subcell is preferentially assigned to the UL subcell. This parameter is applied to the enhanced dualband cell.
GUI Value Range [No,Yes]
Default Value No
Unit None
Step -
Modification Rules None
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Parent topic: Enhance dual band data
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UL Subcell General Overload Threshold(%)
Parent topic: Enhance dual band data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Configuration Policy
None
Recommended Value
No
Parameter Relationship
None
BSC Feature Channel management, handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name UL Subcell General Overload Threshold(%)
Description If the channel seizure ratio of the UL subcell is greater than the value of this parameter, some calls of the UL subcell is handed over to the OL subcell. Moreover, the MS that sends the channel request message in the UL subcell is preferentially assigned to the OL subcell.
GUI Value Range [0,100]
Default Value 80
Unit %
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, the traffic load in the OL subcell is increased.
If this parameter is set to a too small value, the traffic load in the UL subcell is increased.
Recommended Value
80
Parameter Relationship
UL Subcell Lower Load Threshold(%) < UL subcell general overload threshold(%) < UL subcell serious overload threshold(%)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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UL Subcell Serious Overload Threshold(%)
Parent topic: Enhance dual band data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Allowed Flow Control Level of UL And OL Subcell HO
Parameter Name UL Subcell Serious Overload Threshold(%)
Description If the channel seizure ratio of the UL subcell is greater than the value of this parameter, the load handover period from the UL subcell to the OL subcell is decreased by the value of Step length of UL subcell load HO(dB) per second on the basis of UL subcell load hierarchical HO period, thus speeding up the load handover.
GUI Value Range [0,100]
Default Value 90
Unit %
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, the traffic load in the UL subcell is increased.
If this parameter is set to a too small value, the traffic load in the OL subcell is increased.
Recommended Value
90
Parameter Relationship
UL Subcell Lower Load Threshold(%) < UL subcell general overload threshold(%) < UL subcell serious overload threshold(%)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Allowed Flow Control Level of UL And OL Subcell HO
Description If the flow control level in the current system is greater than the value of this parameter, the handover between the UL subcell and the OL subcell due to low or high UL subcell load is not allowed.
GUI Value Range [0,11]
Default Value 10
Unit None
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Parent topic: Enhance dual band data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Distance Between Boundaries of UL And OL Subcells(dB)
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great or too low value, load balancing between the OL subcell and UL subcell is adversely affected.
Recommended Value
10
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Distance Between Boundaries of UL And OL Subcells(dB)
Description This parameter is a relative value, which specifies the size of blank zone between the UL subcell and the OL subcell. The greater the value of this parameter is, the larger the blank zone is.
For the enhanced dualband handover algorithm, the boundaries of the OL and UL subcells are determined according to the relative value between the signal strength of serving cell and that of the adjacent cell. Suppose the signal strength of serving cell is SS(s) and the signal strength of the adjacent cell is SS(n). When SS(s) = SS(n), the system considers that it is the boundary point of the UL subcell. When SS(s) - SS(n) > Distance between Boundaries of UL And OL Subcells, it is the coverage area of the OL subcell.
GUI Value Range [0,63]
Default Value 10
Unit dB
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the handover between the OL subcell and the UL subcell can be triggered.
Recommended Value
10
Parameter Distance Hysteresis Between Boundaries of UL And OL Subcells(dB)
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Parent topic: Enhance dual band data
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Distance Hysteresis Between Boundaries of UL And OL Subcells(dB)
Parent topic: Enhance dual band data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Load HO From UL Subcell to OL Subcell
Relationship
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Distance Hysteresis Between Boundaries of UL And OL Subcells(dB)
Description To prevent ping-pong handovers, this parameter should be decided before the handover from the OL subcell to the UL subcell. Suppose the signal strength of serving cell is SS(s) and the signal strength of the adjacent cell is SS(n). The decision condition for a handover from the OL subcell to the UL subcell is as follows: SS(s) - SS(n) < Distance between Boundaries of UL And OL Subcells - Distance Hysteresis Between Boundaries of UL And OL Subcells.
GUI Value Range [0,63]
Default Value 2
Unit dB
Step -
Modification Rules None
Configuration Policy
The greater the value of this parameter is set, the more difficult the handover between the OL subcell and the UL subcell can be triggered.
Recommended Value
2
Parameter Relationship
Distance between Boundaries of UL And OL Subcells(dB)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Allowed
Parent topic: Enhance dual band data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
UL Subcell Load Hierarchical HO Period(s)
Parameter Name Load HO From UL Subcell to OL Subcell Allowed
Description This parameter specifies whether some calls of the UL subcell can be handed over to the OL subcell when the channel seizure ratio of the UL subcell is high.
GUI Value Range [No,Yes]
Default Value Yes
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
Yes
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name UL Subcell Load Hierarchical HO Period(s)
Description This parameter specifies the hierarchical handover period of the load handover from the UL subcell to the OL subcell.
If the channel seizure ratio of the UL subcell is greater than the UL subcell general overload threshold, all the calls in the cell send handover requests at the same time and the load on the BSC increases in a short time. Thus, congestion may occur in the target cell and call drops may be caused. Through the hierarchical load handover algorithm, the calls in the cell are handed over to the OL subcell by level.
This parameter specifies the period of load handover for each level.
GUI Value Range [1,255]
Default Value 5
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Parent topic: Enhance dual band data
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Step Length of UL Subcell Load HO(dB)
Parent topic: Enhance dual band data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Unit Seconds
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too small value, the system flow load is increased.
Recommended Value
5
Parameter Relationship
UL subcell general overload threshold(%)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Step Length of UL Subcell Load HO(dB)
Description This parameter specifies the hierarchical level step of the load handover from the UL subcell to the OL subcell.
GUI Value Range [0,63]
Default Value 5
Unit dB
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
5
Parameter Relationship
UL subcell general overload threshold(%)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Modified Step Length of UL Load HO Period(s)
Parent topic: Enhance dual band data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Load HO of OL Subcell to UL Subcell Enabled
Parameter Name Modified Step Length of UL Load HO Period(s)
Description If the traffic load of the UL subcell is higher than the UL subcell serious overload threshold, the handover period from the UL subcell to the OL subcell is decreased by the value of this parameter per second on the basis of UL subcell load hierarchical HO period.
GUI Value Range [1,255]
Default Value 1
Unit Seconds
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, the system flow load is increased.
Recommended Value
1
Parameter Relationship
UL subcell load hierarchical HO period
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Load HO of OL Subcell to UL Subcell Enabled
Description This parameter specifies whether the load handover from the OL subcell to the UL subcell is enabled.
GUI Value Range [No,Yes]
Default Value No
Unit None
Step -
Modification Rules None
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Parent topic: Enhance dual band data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
OL Subcell Load Diversity HO Period(s)
Parent topic: Enhance dual band data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Step Length of OL Subcell Load HO(dB)
Configuration Policy
None
Recommended Value
No
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name OL Subcell Load Diversity HO Period(s)
Description This parameter specifies the hierarchical handover period of the load handover from the OL subcell to the UL subcell.
This parameter specifies the period of load handover for each level.
GUI Value Range [1,255]
Default Value 10
Unit Seconds
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too small value, the system flow load is increased.
Recommended Value
10
Parameter Relationship
Step length of OL subcell load HO(dB)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Parent topic: Enhance dual band data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Incoming OL Subcell HO level Threshold(dB)
Parameter Name Step Length of OL Subcell Load HO(dB)
Description This parameter specifies the level step of the load handover from the OL subcell to the UL subcell.
GUI Value Range [0,63]
Default Value 5
Unit dB
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, the system flow load is increased.
Recommended Value
5
Parameter Relationship
OL subcell load diversity HO period(s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Incoming OL Subcell HO level Threshold(dB)
Description This parameter specifies the OL subcell level lower threshold of the handover from the UL subcell to the OL subcell. The handover from the UL subcell to the OL subcell can be triggered only when the receive level of the MS is higher than the Incoming OL subcell HO level threshold. The value of this parameter ranges from 0 to 63 (corresponding to -110 dBm to -47 dBm).
GUI Value Range [0,63]
Default Value 30
Unit Levels
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too great value, the traffic load in the UL subcell is heavy, and the OL subcell cannot share the traffic.
Recommended Value
30
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Parent topic: Enhance dual band data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Outgoing OL Subcell HO level Threshold(dB)
Parent topic: Enhance dual band data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Inter UL And OL Subcells HO Penalty Time(s)
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Outgoing OL Subcell HO level Threshold(dB)
Description This parameter specifies the OL subcell level lower threshold of the handover from the OL subcell to the UL subcell. The handover from the OL subcell to the UL subcell can be triggered only when the receive level of the MS is higher than the Outgoing OL subcell HO level threshold. The value of this parameter ranges from 0 to 63 (corresponding to -110 dBm to -47 dBm).
GUI Value Range [0,63]
Default Value 25
Unit Levels
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too small value, the traffic load in the UL subcell is heavy, and the OL subcell cannot share the traffic.
Recommended Value
25
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
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Parent topic: Enhance dual band data
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Total Number of Measurements(s)
Parameter Name Inter UL And OL Subcells HO Penalty Time(s)
Description After a handover between the UL subcell and the OL subcell is successful, no handover can be triggered within the period defined by this parameter.
GUI Value Range [0,255]
Default Value 5
Unit Seconds
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
5
Parameter Relationship
None
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Total Number of Measurements(s)
Description According to the P/N criterion, if the triggering conditions of enhanced dualband handover are met for P consecutive times within N times, the corresponding handover decision is triggered.
This parameter corresponds to N of the P/N criterion.
GUI Value Range [1,255]
Default Value 5
Unit Seconds
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
5
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Parent topic: Enhance dual band data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Number of Satisfactory Measurements(s)
Parent topic: Enhance dual band data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Inner Cell EDGE HO Enable
Parameter Relationship
Number of satisfactory measurements(s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Number of Satisfactory Measurements(s)
Description According to the P/N criterion, if the triggering conditions of enhanced dualband handover are met for P consecutive times within N times, the corresponding handover decision is triggered.
This parameter corresponds to P of the P/N criterion.
GUI Value Range [1,255]
Default Value 4
Unit Seconds
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
4
Parameter Relationship
Total number of measurements(s)
BSC Feature Handover
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Inner Cell EDGE HO Enable
Description This parameter determines whether the handover decision from the OL
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Parent topic: Enhance dual band data
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Inner Cell Serious OverLoad Threshold(%)
subcell to the UL subcell can be made when the enhanced dualband load handover is not triggered.
GUI Value Range [No,Yes]
Default Value Yes
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
Yes
Parameter Relationship
None
BSC Feature Co-BCCH cell
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name Inner Cell Serious OverLoad Threshold(%)
Description During the UL subcell to the OL subcell handover in the enhanced dualband network, if the traffic load in the OL subcell is higher than the Inner Cell Serious Overload Threshold, a load handover from the UL subcell to the OL subcell cannot be triggered.
GUI Value Range [0,100]
Default Value 90
Unit %
Step -
Modification Rules None
Configuration Policy
If this parameter is set to a too small value, the traffic load in the UL subcell is increased.
Recommended Value
90
Parameter Relationship
None
BSC Feature Handover
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Parent topic: Enhance dual band data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
2G BA2 Table l 2G BA2 Table
Parent topic: Handover Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
2G BA2 Table
Parent topic: 2G BA2 Table
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
UTRAN FDD CELL BA2
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name 2G BA2 Table
Description This parameter specifies the frequencies of the neighbor 2G cells of a cell. The frequencies of the added neighbor 2G cells are listed in 2G Cell BA Table 2 in sequence and are sent in the system information message.
GUI Value Range none
Default Value None
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
None
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
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l UTRAN FDD CELL BA2
Parent topic: Handover Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
UTRAN FDD CELL BA2
Parent topic: UTRAN FDD CELL BA2
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
UTRAN TDD CELL BA2 l UTRAN TDD CELL BA2
Parent topic: Handover Data
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
UTRAN TDD CELL BA2
Parameter Name UTRAN FDD CELL BA2
Description This parameter specifies the frequencies of the neighbor 3G cells of a cell. The frequencies of the added neighbor 3G cells are listed in 3G Cell BA Table 2 in sequence and are sent in the system information message.
GUI Value Range none
Default Value None
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
None
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
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Parent topic: UTRAN TDD CELL BA2
Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Parameter Name UTRAN TDD CELL BA2
Description This parameter specifies the neighbor TDD 3G cells of a cell. The added neighbor TDD 3G cells are listed in Cell TDD BA Table 2 in sequence and are sent in the system information message.
GUI Value Range none
Default Value None
Unit None
Step -
Modification Rules None
Configuration Policy
None
Recommended Value
None
Parameter Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
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