macro-micro multi rrus in one cell(ran16.0_01)

WCDMA RAN

Macro-Micro Multi RRUs in One CellFeature Parameter Description

Issue 01

Date 2014-04-30

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2014. All rights reserved.

No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respective holders. NoticeThe purchased products, services and features are stipulated by the contract made between Huawei and thecustomer. All or part of the products, services and features described in this document may not be within thepurchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,and recommendations in this document are provided "AS IS" without warranties, guarantees or representationsof any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but all statements, information, andrecommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.Address: Huawei Industrial Base

Bantian, LonggangShenzhen 518129People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

Issue 01 (2014-04-30) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

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http://www.huawei.com

mailto:[email protected]

Contents

1 About This Document..................................................................................................................11.1 Scope..............................................................................................................................................................................11.2 Intended Audience..........................................................................................................................................................11.3 Change History...............................................................................................................................................................21.4 Differences Between Base Station Types.......................................................................................................................2

2 Overview.........................................................................................................................................42.1 Introduction....................................................................................................................................................................42.2 Benefits...........................................................................................................................................................................4

3 Technical Description...................................................................................................................53.1 Introduction....................................................................................................................................................................53.2 High- and Low-power RRUs..........................................................................................................................................63.3 Uplink Interference Cancellation Algorithm..................................................................................................................6

4 Related Features.............................................................................................................................8

5 Network Impact.............................................................................................................................9

6 Engineering Guidelines.............................................................................................................116.1 When to Use Macro-Micro Multi RRUs in One Cell...................................................................................................116.2 Required Information...................................................................................................................................................116.3 Planning........................................................................................................................................................................126.3.1 Hardware Planning....................................................................................................................................................126.4 Deployment..................................................................................................................................................................136.4.1 Requirements.............................................................................................................................................................136.4.2 Data Preparation........................................................................................................................................................146.4.3 Precautions.................................................................................................................................................................146.4.4 Activation Using MML Commands..........................................................................................................................146.4.5 MML Command Examples.......................................................................................................................................146.4.6 Activation Using the CME........................................................................................................................................146.4.7 Activation Observation..............................................................................................................................................156.4.8 Deactivation Using MML Commands......................................................................................................................156.4.9 MML Command Examples.......................................................................................................................................156.4.10 Deactivation Using the CME...................................................................................................................................16

WCDMA RANMacro-Micro Multi RRUs in One Cell Feature ParameterDescription Contents


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6.5 Performance Monitoring...............................................................................................................................................166.6 Parameter Optimization................................................................................................................................................166.7 Troubleshooting............................................................................................................................................................17

7 Parameters.....................................................................................................................................18

8 Counters........................................................................................................................................19

9 Glossary.........................................................................................................................................20

10 Reference Documents...............................................................................................................21

WCDMA RANMacro-Micro Multi RRUs in One Cell Feature ParameterDescription Contents


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1 About This Document

1.1 ScopeThis document describes the WRFD-151208 Macro-Micro Multi RRUs in One Cell feature,including its working principles, feature dependencies, network impact, and engineeringguidelines.

This document applies to the following NE types.

NE Type NE Model

RNC Not involved

NodeB Macro 3900 series macro base stations: BTS3900, BTS3900A,BTS3900L, BTS3900AL, DBS3900, BTS3900C3800 series macro base stations: DBS3800, BTS3812E,BTS3812AE

Micro Not supported

LampSite Not supported

1.2 Intended AudienceThis document is intended for personnel who:

l Need to understand Macro-Micro Multi RRUs in One Celll Work with Huawei UMTS productsl Familiar with WCDMA basics

WCDMA RANMacro-Micro Multi RRUs in One Cell Feature ParameterDescription 1 About This Document


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1.3 Change HistoryThis section provides information about the changes in different document versions. There aretwo types of changes, which are defined as follows:

l Feature changeRefers to a change in the Macro-Micro Multi RRUs in One Cell feature of a specific productversion.

l Editorial changeRefers to a change in wording or the addition of information that was not described in theearlier version.

RAN16.0 01 (2014-04-30)

This issue does not include any changes.

RAN16.0 Draft B (2014-02-28)

This issue includes the following changes.

Change Type Change Description Parameter Change

Feature change None None

Editorial change Optimized somedescriptions.For details about featuresupport and functionimplementation differencesbetween base station types,see 1.4 Differences BetweenBase Station Types.

None

RAN16.0 Draft A (2014-01-20)

This document is created for RAN16.0.

1.4 Differences Between Base Station Types

Feature Support by Macro, Micro, and LampSite Base Stations

FeatureID

Description

Supported byController(Y/N/NA)

Supported byMacro

Supported by Micro(Y/N/NA)

LampSite



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BSC6900

(Y/N/NA)

BSC6910

BTS3803E

BTS3902E

WRFD-151208

Macro-MicroMultiRRUs inOne Cell

NA NA Y N N N

NOTE

Y indicates that a feature is supported; N indicates that a feature is not supported; NA indicates that an NE isnot involved, that is, a feature does not require the support of the NE.



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2 Overview

2.1 IntroductionThe Macro-Micro Multi RRUs in One Cell feature is applicable to a cell where multiple RRUsserve the cell and have different transmit power. This cell is referred to as a multi-RRU cell inthis document. In such a cell, RRUs are divided into high-power and low-power RRUs. Fordetails about how to distinguish between them, see 3.2 High- and Low-power RRUs.

By implementing carrier- and channel-specific digital attenuation and desensitization for theuplink receive channels of low-power RRUs, Macro-Micro Multi RRUs in One Cell achievesthe following:

l Decreases uplink interference between a multi-RRU cell and its neighboring cellsl Enables the RRUs to use the same background noise in a celll Improves network performance

In this document, "carrier" refers to a UMTS carrier on an RRU, and "channel" refers to anuplink receive channel of an RRU.

2.2 BenefitsThe feature has the following benefits:

l Reduces the number of cells, decreases inter-cell handovers and interference, and therebysignificantly simplifies network planning and optimization.

l Solves the following problems that may occur in multi-RRU cells:

– High-power RRUs in neighboring cells cause uplink interference on low-power RRUsin the serving cell. This problem is solved by implementing digital desensitization onlow-power RRUs.

– RRUs in a cell have different background noise, possibly affecting uplink performance.This problem is solved by implementing digital attenuation on low-power RRUs.

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3 Technical Description

3.1 IntroductionIf the Macro-Micro Multi RRUs in One Cell feature is activated for a multi-RRU cell where theRRUs have different transmit power, the BBU of the NodeB automatically obtains the actualtransmit power, noise factor, and uplink diversity gains of each RRU in the cell, and distinguishesbetween high-power and low-power RRUs. The BBU also calculates digital attenuation anddesensitization values for the low-power RRUs, sends the calculated values to correspondingRRUs, and implements digital attenuation and desensitization on the uplink receive channels.During this process, the Macro-Micro Multi RRUs in One Cell feature supports a total of 30 dBfor attenuation and desensitization with an accuracy of 0.1 dB. Therefore, this feature applies tothe cells where the maximum downlink power difference between RRUs reaches 30 dB.

Figure 3-1 illustrates how this feature implements digital attenuation and desensitization on theuplink receive channels for low-power RRUs.

Figure 3-1 Digital attenuation and desensitization on the uplink receive channels for low-powerRRUs

Low-power RRUs first implement digital attenuation and then digital desensitization on theuplink receive channels where both of the physical and logical switches are turned on. Digitalattenuation and desensitization are calculated by the uplink interference cancellation algorithm.

Digital attenuation aims to reduce the RTWP of low-power RRUs with digital desensitization,thereby unifying the background noise of RRUs for a cell.

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Digital desensitization aims to decrease the uplink signal-to-noise ratio (SNR) of low-powerRRUs by increasing their background noise, thereby reducing interference from high-powerRRUs of the neighboring cells.

3.2 High- and Low-power RRUsThis section describes how the BBU distinguishes between high-power and low-power RRUsin a multi-RRU cell. Digital attenuation and desensitization apply only to low-power RRUs.

In a multi-RRU cell, the RRUs with different power and noise factors can work together anddifferent RX antenna configurations (1T1R and 1T2R) can take effect. Therefore, the BBU needsto distinguish between high-power and low-power RRUs based on the actual transmit power,noise factor, and number of valid receive channels for RRUs. Each RRU reports its noise factorto the BBU. For any RRU that does not report its noise factor, the BBU takes the default value(for example, 1.6 dB).

The BBU distinguishes between high-power and low-power RRUs as follows:

Step 1 The BBU obtains the following information about each RRU: actual transmit power(Power_SecEq_i, in dBm), number of valid uplink receive channels (RXNUM_SecEq_i), andnoise factor (NF_SecEq_i).

Step 2 The BBU obtains the RRU's uplink diversity gain (G_ULDiv_SecEq_i) based on the mappingbetween the number of valid uplink receive channels and uplink diversity gain. The mapping islisted in the following table.

Number of Valid Receive Channels Uplink Diversity Gain (dB)

1 0

2 3

Step 3 The BBU calculates the RRU identification factor (F_ identify_SecEq_i) by using the followingformula:

F_ identify_SecEq_i = Power_SecEq_i (dBm) + NF_SecEq_i (dB) - G_ULDiv_SecEq_i (dB)

Step 4 The BBU takes the smallest noise factor of RRUs that have the maximum F_ identify_SecEq_ias the noise factor of high-power RRUs (NF_TopSecEq).

Step 5 If an RRU meets the following conditions, it is considered as a high-power RRU.

----End

F_ identify_SecEq_i = Max F_ identify_SecEq_i and NF_SecEq_i = NF_TopSecEq

An RRU that does not meet these conditions is considered as a low-power RRU.

3.3 Uplink Interference Cancellation AlgorithmThe BBU implements the uplink interference cancellation algorithm for a cell where the RRUshave different transmit power. To cancel uplink interference, the BBU calculates digital



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attenuation and desensitization values for each low-power RRU and sends the values to thecorresponding low-power RRU.

The interference cancellation procedure is detailed as follows:

Step 1 The BBU obtains the following values for the high-power RRUs:l Downlink power reference value (Power_TopSecEq_RE): Equals the maximum value of

Power_SecEq_i for all high-power RRUs.l Noise factor reference value (NF_TopSecEq_RE): Equals the NF_TopSecEq for a high-

power RRU (all high-power RRUs have the same NF_TopSecEq).l Uplink diversity gain reference value (G_ULDiv_TopSecEq_RE): Equals the maximum

value of G_ULDiv_SecEq_i for all high-power RRUs.

Step 2 The BBU uses the following formulas to calculate the digital attenuation intensity(Att_LowSecEq_i) and digital desensitization intensity (Intensity_DESENS_LowSecEq) foreach low-power RRU. Both values are measured in dB at an accuracy of 0.1 dB.

Att_LowSecEq_i = (Power_TopSecEq_RE - Power_LowSecEq_i + G_ULDiv_LowSecEq_i -G_ULDiv_TopSecEq_RE)

Intensity_DESENS_LowSecEq = (Power_TopSecEq_RE - Power_LowSecEq_i +NF_TopSecEq_RE- NF_LowSecEq_i + G_ULDiv_LowSecEq_i - G_ULDiv_TopSecEq_RE)

Step 3 The BBU issues the digital attenuation and desensitization values to the corresponding low-power RRU.

----End

l Digital attenuation

The BBU issues Att_LowSecEq_i to the corresponding low-power RRU.

l Digital desensitization

In addition to Intensity_DESENS_LowSecEq, a cell-level desensitization value is also sent toeach low-power RRU if cell-level desensitization is also working.



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4 Related Features

Prerequisite FeaturesThe Macro-Micro Multi RRUs in One Cell feature depends on the feature WRFD-021350Independent Demodulation of Signals from Multiple RRUs in One Cell.

Mutually Exclusive FeaturesThis feature is mutually exclusive with the following features:

l WRFD-010203 Transmit Diversityl WRFD-010209 4-Antenna Receive Diversityl WRFD-010684 2x2 MIMOl WRFD-021308 Extended Cell Coverage up to 200kml WRFD-010692 HSUPA FDEl WRFD-010701 Uplink Enhanced CELL_FACHl WRFD-010205 Cell Digital Combination and Splitl 0.5/0.5 Configuration

In addition, it is good practice to maintain the default RF desensitization intensity (0 dB) afterthis feature is deployed due to the following reasons:

l The RF desensitization intensity can be set only to 0 dB or 10 dB.l Accuracy in RF desensitization is low.l RF desensitization affects the noise factor and therefore negatively affects the performance

of this feature.

Impacted FeaturesNone

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5 Network Impact

System CapacityThe Macro-Micro Multi RRUs in One Cell feature cancels uplink interference caused bydifferent RRU power in a cell. Compared with the deployment with only one RRU in one cell,this feature increases or retains uplink capacity if UEs are unevenly distributed to the RRUs ina cell.

Uplink capacity gains yielded by this feature for a multi-RRU cell vary depending on theposition, coverage area, power, neighboring cell relationships, and absorbed traffic volume ofeach RRU, but the gains cannot be quantified

Compared with the deployment with only one RRU in one cell, this feature decreases thedownlink capacity.

Network PerformancePerformance gains yielded by this feature for a multi-RRU cell vary depending on the position,coverage area, power, neighboring cell relationships, and absorbed traffic volume of each RRU,but performance gains cannot be quantified.

Compared with the deployment with only one RRU in one cell, activating Macro-Micro MultiRRUs in One Cell has the following impacts on network performance:

l Network KPIs

– Coverage: Ec/Io in downlink coverage improves due to a decrease in inter-cellinterference. Uplink coverage provided by high-power RRUs improves, and uplinkcoverage provided by low-power RRUs may shrink because of desensitization.

– Call drop rate: It remains the same or slightly improves because of decreased inter-cellinterference.

– Access success rate: It remains the same or slightly improves because of decreased inter-cell interference.

– Handover success rate: It remains the same or slightly improves because of decreasedinter-cell interference.

l Resource usage

– Power resources: The usage of power resources increases given that total RRUthroughput remains the same.

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– Channel element (CE) resources: Uplink CE usage remains the same given that totalRRU throughput remains the same.

– Code resources: Code resource usage increases given that total RRU throughput remainsthe same.

– Transport resources: Iub resource usage remains the same given that total RRUthroughput remains the same.

l User experienceUser experience improves if the capacity is unlimited:

– Uplink user throughput increases or remains the same.

– Downlink user throughput increases.l Others

Activating this feature sometimes decreases HSUPA throughput for cell edge users that areserved by low-power RRUs because digital desensitization deteriorates the uplink SIR oflow-power RRUs.

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6 Engineering Guidelines

6.1 When to Use Macro-Micro Multi RRUs in One CellUse Macro-Micro Multi RRUs in One Cell when either of the following conditions applies:

l The RRUs in a cell have different noise factors.

l The RRUs in a cell have different transmit power.

This feature is mainly used to eliminate coverage holes in scenarios with low capacityrequirements, including:

l Street coverage

l Shallow coverage for shops

l Small-sized residential areas

l Replacement of repeaters by RRUs with different power

6.2 Required InformationBefore activating Macro-Micro Multi RRUs in One Cell, ensure that the RRUs in a cell providedifferent transmit power and that Independent Demodulation of Signals from Multiple RRUs inOne Cell has been activated.

In addition, collect the values of the following KPIs and counters before activating the featurefor future comparison:

l Access success rate in a cell, involving counters:

– Radio access success rate

– RRC setup success rate

– HSUPA RAB setup success rate

l Call drop rate in a cell, involving counters:

– CS call drop rate

– PS call drop rate

WCDMA RANMacro-Micro Multi RRUs in One Cell Feature ParameterDescription 6 Engineering Guidelines


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– HSUPA call drop ratel Intra-frequency handover success rate in a cell, involving counters:

– Soft handover success rate

– Softer handover success ratel Uplink traffic volume and throughput in a cell, involving counters:

– R99 Service UL Traffic Volume (MBytes) = (VS.PS.Bkg.UL.8.Traffic +VS.PS.Bkg.UL.16.Traffic + VS.PS.Bkg.UL.32.Traffic + VS.PS.Bkg.UL.64.Traffic +VS.PS.Bkg.UL.128.Traffic + VS.PS.Bkg.UL.144.Traffic + VS.PS.Bkg.UL.256.Traffic + VS.PS.Bkg.UL.384.Traffic + VS.PS.Int.UL.8.Traffic + VS.PS.Int.UL.16.Traffic + VS.PS.Int.UL.32.Traffic + VS.PS.Int.UL.64.Traffic + VS.PS.Int.UL.128.Traffic + VS.PS.Int.UL.144.Traffic + VS.PS.Int.UL.256.Traffic + VS.PS.Int.UL.384.Traffic + VS.PS.Str.UL.8.Traffic + VS.PS.Str.UL.16.Traffic + VS.PS.Str.UL.32.Traffic + VS.PS.Str.UL.64.Traffic + VS.PS.Str.UL.128.Traffic +VS.DcchSRB.Ul.Traffic + VS.PS.Conv.UL.Traffic)/1024/1024/8

– HSUPA RLC Traffic Volume (MBytes) =(VS.HSUPA.MeanChThroughput.TotalBytes/1024/1024)

– Average UL Throughput for PS R99 Service (kbps) = (VS.PS.Bkg.UL.8.Traffic +VS.PS.Bkg.UL.16.Traffic + VS.PS.Bkg.UL.32.Traffic + VS.PS.Bkg.UL.64.Traffic +VS.PS.Bkg.UL.128.Traffic + VS.PS.Bkg.UL.144.Traffic + VS.PS.Bkg.UL.256.Traffic + VS.PS.Bkg.UL.384.Traffic + VS.PS.Int.UL.8.Traffic + VS.PS.Int.UL.16.Traffic + VS.PS.Int.UL.32.Traffic + VS.PS.Int.UL.64.Traffic + VS.PS.Int.UL.128.Traffic + VS.PS.Int.UL.144.Traffic + VS.PS.Int.UL.256.Traffic + VS.PS.Int.UL.384.Traffic + VS.PS.Str.UL.8.Traffic + VS.PS.Str.UL.16.Traffic + VS.PS.Str.UL.32.Traffic + VS.PS.Str.UL.64.Traffic + VS.PS.Str.UL.128.Traffic +VS.DcchSRB.Ul.Traffic + VS.PS.Conv.UL.Traffic)/1024/{SP x 60}

– Mean Throughput for One HSUPA Cell (kbps) =VS.HSUPA.MeanChThroughput.TotalBytes/{SP x 60}/1024 x 8

In these formulas, SP refers to a statistical period in minutes. The calculated KPI values decreaseif no user transmits data within an SP. Therefore, it is good practice to measure these countersduring busy hours.

6.3 Planning

6.3.1 Hardware Planningl Only the DBS3900 supports this feature. The WBBPa board does not support this feature.l The requirements for RRUs are as follows:

1. RRU3824, RRU3826, RRU3828, RRU3829, RRU3926, RRU3928, RRU3929,RRU3938, and RRU3939 support digital attenuation and desensitization and thereforecan be configured as either high-power or low-power RRUs in a cell.

2. Other RRUs do not support digital attenuation or desensitization and therefore can beconfigured only as high-power RRUs. If an RRU that does not support digitalattenuation or desensitization is configured as a low-power RRU, the RNC reportsALM-28206 Local Cell Capability Decline.

l The RRU3821E, RFU, and AAS do not support this feature.



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6.4 Deployment

6.4.1 Requirementsl Other features

The feature WRFD-021350 Independent Demodulation of Signals from Multiple RRUs in OneCell must be activated before this feature is activated.

l License

For details about how to activate the license, see License Management Feature ParameterDescription.

FeatureID

FeatureName

LicenseControlItem

LicenseControlName

LicenseControlItemNameonU2000GUI

NE LicenseAllocation forMultipleOperators

SalesUnit

WRFD-151208

Macro-MicromultiRRUs inone cell

LQW9SDBMR01

Macro-MicromultiRRUs inone cell(perCell*RRU)

Macro-MicromultiRRUsinonecell

NodeB Method 2 perRRUpercell

If RAN Sharing or MOCN is enabled, the licensed value is allocated among the primaryand secondary operators according to the value of the "License Allocation for MultipleOperators parameter".

Method 2: some license control items, such as UL CE Num, can be allocated through boththe common group and private groups. In this case, the licensed values specified by theprivate group are preferentially used, and the licensed value specified by the common group



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is used on a first-come, first-served basis. For the NodeB license allocation among multipleoperators, see License Management Feature Parameter Description.

6.4.2 Data Preparation

Parameter Name Parameter ID Setting Notes Data Source

Macro-Micro Multi-RRUs-Cell StaticDesensitizationSwitch

MULTIRRUSTATICDESSW

It is good practice toturn on this switch.

Network plan

6.4.3 PrecautionsReconfigure the Macro-Micro Multi RRUs in One Cell feature if parameter reconfigurationslead to changes in any of the following: number of available RRUs in a cell, actual transmitpower of an RRU, and number of available RX channels on an RRU. Reconfiguring this featuredoes not interrupt services. However, adjusting the digital attenuation and desensitizationadversely affects the performance of power control in a similar way that fast fading does, whichmay cause call drops.

6.4.4 Activation Using MML Commandsl Network deployment

Run the ADD ULOCELL command on the NodeB with Macro-Micro Multi-RRUs-CellStatic Desensitization Switch set to TRUE.

l Network reconfiguration

Run the MOD ULOCELL command on the NodeB with Macro-Micro Multi-RRUs-CellStatic Desensitization Switch set to TRUE.

6.4.5 MML Command Examples//Activating Macro-Micro Multi RRUs in One CellADD ULOCELL: ULOCELLID=0, LOCELLTYPE=MULTIRRU_CELL, SECTOREQMNUM=2, SECTOREQMID1=0, SECTOREQMID2=1, ULFREQ=9612, DLFREQ=10562, MAXPWR=430,HISPM=FALSE, MULTIRRUSTATICDESSW=TRUE;MOD ULOCELL: ULOCELLID=0, LOCELLTYPE=MULTIRRU_CELL, MULTIRRUSTATICDESSW=TRUE;

6.4.6 Activation Using the CMENOTE

When configuring the Macro-Micro Multi RRUs in One Cell feature on the CME, perform a single configurationfirst, and then perform a batch modification if required. Configure the parameters of a single object before abatch modification. Perform a batch modification before logging out of the parameter setting interface.

Step 1 Configure a single object (such as a cell) on the CME.

Set the parameter described in Table 6-1 on the CME. For instructions on how to perform theCME single configuration, see CME Single Configuration Operation Guide.



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Step 2 (Optional) Modify objects in batches on the CME. (CME batch modification center)

----End

To modify objects in batches, click on the CME to start the batch modification wizard. Forinstructions on how to perform a batch modification through the CME batch modification center,press F1 on the wizard interface to obtain online help.

Table 6-1 Parameter to be set on the CME

SN MO NE Parameter Name

ParameterID

Configurable inCME BatchModificationCenter

1 Local Cell NodeB Macro-MicroMulti-RRUs-Cell StaticDesensitizationSwitch

MULTIRRUSTATICDESSWTheparameter isset toTRUE.

Yes

6.4.7 Activation ObservationTo determine whether Macro-Micro Multi RRUs in One Cell has been activated, run the MMLcommand DSP ULOCELL on the NodeB and check the value of Macro-Micro Multi-RRUs-Cell Static Desensitization Capability.

l For an inactive cell, value AVAILABLE(Enable) indicates that the feature has beensuccessfully activated, and value DISABLE(Disable) indicates that the feature is notactivated.

l For an activated cell:

1. Value AVAILABLE(Enable) indicates that the feature has been successfullyactivated.

2. Value DISABLE(Disable) indicates that the feature is not activated.3. Value DEGRADE(Degrade) indicates that the feature has been activated but is not

functioning properly.

6.4.8 Deactivation Using MML CommandsTo deactivate the feature, run the MOD ULOCELL command on the NodeB with Macro-Micro Multi-RRUs-Cell Static Desensitization Switch set to FALSE.

6.4.9 MML Command Examples//Deactivating Macro-Micro Multi RRUs in One CellMOD ULOCELL: ULOCELLID=0, LOCELLTYPE=MULTIRRU_CELL, MULTIRRUSTATICDESSW=FALSE;



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6.4.10 Deactivation Using the CMENOTE

When configuring the Macro-Micro Multi RRUs in One Cell feature on the CME, perform a single configurationfirst, and then perform a batch modification if required. Configure the parameters of a single object before abatch modification. Perform a batch modification before logging out of the parameter setting interface.

Step 1 Configure a single object (such as a cell) on the CME.

Set the parameter described in Table 6-2 on the CME. For instructions on how to perform theCME single configuration, see CME Single Configuration Operation Guide.

Step 2 (Optional) Modify objects in batches on the CME. (CME batch modification center)

----End

To modify objects in batches, click on the CME to start the batch modification wizard. Forinstructions on how to perform a batch modification through the CME batch modification center,press F1 on the wizard interface to obtain online help.

Table 6-2 Parameter to be set on the CME

SN MO NE Parameter Name

ParameterID

Configurable inCME BatchModificationCenter

1 Local Cell NodeB Macro-MicroMulti-RRUs-Cell StaticDesensitizationSwitch

MULTIRRUSTATICDESSWTheparameter isset toFALSE.

Yes

6.5 Performance MonitoringCollect KPIs and counters listed in 6.2 Required Information, and check whether the valuesof these KPIs and counters satisfy the expected results provided in5 Network Impact.

In addition, conduct field tests to check whether the HSUPA data rate of single cell edge usersthat are served by a low-power RRU decreases.

For a multi-RRU cell, feature gains vary depending on the position, coverage area, power,neighboring cell relationships, and the absorbed traffic volume of each RRU, but the gains cannotbe quantified.

6.6 Parameter OptimizationN/A



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6.7 TroubleshootingThe following table lists alarms related to Macro-Micro Multi RRUs in One Cell.

Alarm ID Alarm Name NE Feature ID Feature Name

28206 Local CellCapabilityDecline

NodeB WRFD-151208 Macro-MicroMulti RRUs inOne Cell

26811 ConfiguredCapacity LimitExceedingLicensed Limit

NodeB WRFD-151208 Macro-MicroMulti RRUs inOne Cell



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7 Parameters

Table 7-1 Parameter description

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

MULTIRRUSTATICDESSW

BTS3900,BTS3900WCDMA

ADDULOCELLMODULOCELLLSTULOCELL

WRFD-151208

StaticDesensitizationBasedMultiRRUs inOne Cell

Meaning: Indicates the Macro-Micro Multi-RRUs-CellStatic Desensitization Switch. The function will beenabled if this parameter is set to TRUE.GUI Value Range: FALSE(FALSE), TRUE(TRUE)Unit: NoneActual Value Range: FALSE, TRUEDefault Value: FALSE(FALSE)

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8 Counters

There are no specific counters associated with this feature.

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9 Glossary

For the acronyms, abbreviations, terms, and definitions, see Glossary.

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10 Reference Documents

1. License Management Feature Parameter Description

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macro-micro multi rrus in one cell(ran16.0_01)

Documents

huawei trademarks

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huawei industrial basebantian

thepurchase scope

usage scope

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trade names

respective holders