umts u900 and u850 network solution guide(ran16.0_02)

WCDMA RAN

UMTS U900 and U850 NetworkSolution Guide

Issue 02Date 2014-10-15

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.comEmail: [email protected]

Issue 02 (2014-10-15) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.

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Contents

1 About This Document..................................................................................................................11.1 Scope..............................................................................................................................................................................11.2 Intended Audience..........................................................................................................................................................11.3 Change History...............................................................................................................................................................12 Solution Overview........................................................................................................................32.1 Background.....................................................................................................................................................................32.2 Application Scenarios.....................................................................................................................................................42.3 Overall Solution..............................................................................................................................................................53 Solution Application Guidelines...............................................................................................73.1 Scenario 1 Wide Suburban Coverage.............................................................................................................................73.1.1 Scenario Description....................................................................................................................................................73.1.2 Solution Purpose..........................................................................................................................................................73.1.3 Solution Description....................................................................................................................................................83.1.4 Implementation............................................................................................................................................................93.2 Scenario 2 Offloading for Hotspots in Urban Areas....................................................................................................103.2.1 Scenario Description..................................................................................................................................................103.2.2 Solution Purpose........................................................................................................................................................103.2.3 Solution Description..................................................................................................................................................103.2.4 Implementation..........................................................................................................................................................133.3 Scenario 3 Urban Intensive Coverage..........................................................................................................................153.3.1 Scenario Description..................................................................................................................................................153.3.2 Solution Purpose........................................................................................................................................................163.3.3 Solution Description..................................................................................................................................................163.3.4 Implementation..........................................................................................................................................................203.4 Scenario 4 Stacked Networking...................................................................................................................................233.4.1 Scenario Description..................................................................................................................................................233.4.2 Solution Purpose........................................................................................................................................................243.4.3 Solution Description..................................................................................................................................................243.4.4 Implementation..........................................................................................................................................................263.5 Scenario 5 External Interference..................................................................................................................................273.5.1 Scenario Description..................................................................................................................................................273.5.2 Solution Purpose........................................................................................................................................................28

WCDMA RANUMTS U900 and U850 Network Solution Guide Contents


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3.5.3 Solution Description..................................................................................................................................................283.5.4 Implementation..........................................................................................................................................................293.6 Scenario 6 Non-standard UMTS Bandwidth................................................................................................................303.6.1 Scenario Description..................................................................................................................................................303.6.2 Solution Purpose........................................................................................................................................................313.6.3 Solution Description..................................................................................................................................................313.6.4 Implementation..........................................................................................................................................................324 List of Features Involved in the Solution...............................................................................335 Acronyms and Abbreviations...................................................................................................356 Reference Documents.................................................................................................................36

WCDMA RANUMTS U900 and U850 Network Solution Guide Contents


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1 About This Document1.1 Scope

This document describes the U900 and U850 network solution, which is used to improve userexperience for UMTS networks.In different scenarios, the solution employs different features and signaling procedures.However, this document does not detail the principle, deployment, and maintenance of theinvolved features. For these details, see the related feature parameter descriptions.

1.2 Intended AudienceThis document is intended for personnel who:l Need to understand the U900 and U850 network solutionl Work with Huawei products

1.3 Change HistoryThis section provides information about the changes in different document versions.

RAN16.0 02 (2014-10-15)This is the second commercial release of RAN16.0.Compared with Issue 01(2014-05-15) of RAN16.0, Issue 02 (2014-10-15) of RAN16.0 has thefollowing sections optimized:l 2.2 Application Scenariosl 3.1.4 Implementationl 3.2.4 Implementationl 3.3.4 Implementationl 3.4.4 Implementation

WCDMA RANUMTS U900 and U850 Network Solution Guide 1 About This Document


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l 3.5.4 Implementationl 3.6.4 Implementation

RAN16.0 01 (2014-05-15)This issue is the first commercial release of RAN16.0.Compared with 01 (2014-04-22) of RAN15.0, this issue adds the description about the function"UMTS Uplink Narrowband Interference Detection" to the section "3.4 Scenario 4 StackedNetworking".

WCDMA RANUMTS U900 and U850 Network Solution Guide 1 About This Document


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2 Solution Overview2.1 Background

The core UMTS frequency bands are UMTS 2100 MHz (band I) and UMTS 1900 MHz (bandII) frequency bands, which are used in multiple commercial UMTS networks around the world.UMTS networks require spectrums with satisfactory transmission performance because of rapidpacket switched (PS) service development and the exponential growth of smartphone use inrecent years. To satisfy this need, the UMTS 900 MHz (band VIII) and UMTS 850 MHz (bandV) frequency bands are put to use.Table 2-1 lists all of the UMTS frequency bands.

Table 2-1 UMTS frequency bandsBand Center

FrequencyTotalSpectrum(MHz)

Uplink(MHz)

Downlink(MHz)

MainDistrict

I 2100 2x60 1920 - 1980 2110 -2170 -II 1900 2x60 1850 -1910 1930 -1990 PCS band in

AmericasIII 1800 2x75 1710 - 1785 1805 - 1880 Europe, Asia

and BrazilIV 1700/2100 2x45 1710 - 1755 2110 - 2155 New 3G

band in USAandAmericas

V 850 2x25 824 - 849 869 - 894 USA,Americasand Asia

VI 800 2x10 830 - 840 875 - 885 Japan

WCDMA RANUMTS U900 and U850 Network Solution Guide 2 Solution Overview


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Band CenterFrequency

TotalSpectrum(MHz)

Uplink(MHz)

Downlink(MHz)

MainDistrict

VII 2600 2x70 2500 - 2570 2620 - 2690 -VIII 900 2x35 880 - 915 925 - 960 Europe and

AsiaIX 1700 2x35 1749.9 -

1784.91844.9 -1879.9

Japan

X 1700/2100 2x60 1710 - 1770 2110 - 2170 -XI 1500 2x25 1427.9 -

1452.91475.9 -1500.9

Japan

XII 700 2x18 698 - 716 728 - 746 -XIII 700 2x10 777 - 787 746 - 756 -XIV 700 2x10 788 - 798 758 - 768 -

NOTE

In this document, the networks using either UMTS band I or UMTS band II or both are referred to as U2100networks, the networks using UMTS band VIII are referred to as U900 networks, and the networks usingUMTS band V are referred to as U850 networks.

2.2 Application ScenariosU900 and U850 networks differ from U2100 networks in the following ways:l Radio propagation performance

Compared with U2100 networks, U900 and U850 networks have less path loss and widercoverage.The path loss in U900 and U850 networks is 12 dB less than that in U2100 networks. U900and U850 networks use the "Okumura-Hata" radio frequency (RF) propagation modelwhile U2100 networks use the "Cost231-Hata" RF propagation model.Working in low frequency bands, U900 and U850 networks provide wide coverage, thanksto which they require fewer base stations.Therefore, U900 and U850 networks are ideal for suburban areas requiring wide coverage.When U900 and U850 networks are deployed in suburban areas, network deployment costsare greatly reduced.

l Intensive coverageWith the same outdoor signal level, test results show that U900 and U850 networks havea better penetration than U2100 networks and that the penetration loss in U900 and U850networks is 1 to 3 dB less than that in U2100 networks. Therefore, U900 and U850 networkscan also be deployed in urban areas requiring intensive coverage.



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l External interferenceStudies of numerous worldwide networks have shown that U900 and U850 networks sufferinterference from many objects, such as street lights, walkie-talkies, TV amplifiers, andeven electronic billboards, not to mention common obstacles. All these obstacles negativelyaffect the coverage and capacity of U900 and U850 networks.

l Spectrum quantityIn UMTS bands V and VIII, the spectrums specified by 3GPP are limited. Most of thesespectrums are occupied by GSM and CDMA networks, and therefore only a spectrum ofless than 5 MHz is available for U900 and U850 networks. In this case, U900 and U850networks must support non-standard frequency spacing, such as the 3.8 MHz bandwidth.

Because of these differences, the following scenarios may exist when deploying U900/U850networks:l Scenario 1: Coverage in suburban areas is weak.l Scenario 2: Hot spots in urban areas require traffic offloading.l Scenario 3: Coverage in urban areas is not intensive.l Scenario 4: An operator already deploys a U2100 network using a vendor's devices in an

area and wants to deploy a U900/U850 network using another vendor's devices in the samearea to form a stacked network.

l Scenario 5: External interference is strong.l Scenario 6: Spectrums are limited and standard frequency spacing is unavailable.Scenarios 1, 2, 3, and 4 are basic scenarios. The U900/U850 network deployment scenario mustbe one of them. Scenarios 5 and 6 are added scenarios, which require special processing. Forexample, if a site uses 4.2 MHz in urban areas to improve intensive UMTS coverage and thereis interference in the uplink, this scenario is a combination of scenarios 3, 5, and 6.U900 and U850 networks require terminals that support UMTS bands V and VIII. As of 2008,mainstream terminals support these bands.This document describes how the U900 and U850 network solution addresses different issuesin any of the preceding scenarios.

2.3 Overall SolutionFigure 2-1 shows the major processes that are employed by the solution to improve theexperience of UEs in the URA_PCH, CELL_PCH, CELL_FACH, CELL_DCH, or systemaccess state and of UEs in idle mode.

NOTE

The major processes are the same for UEs in the CELL_PCH state and UEs in the URA_PCH state.Therefore, this document does not cover UEs in the URA_PCH state.



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Figure 2-1 Major processes

The following are full names of the abbreviations in Figure 2-1:l SHO stands for soft handover.l IFHO stands for inter-frequency handover.l MC LDR stands for load-based inter-frequency handover based on measurement.l CLB stands for inter-frequency load balancing based on configurable load threshold.l BlindHO stands for blind handover.l "During UE Access" indicates the system access state where UEs have initiated a service

setup request and are waiting for permission from the universal terrestrial radio accessnetwork (UTRAN).



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3 Solution Application Guidelines3.1 Scenario 1 Wide Suburban Coverage3.1.1 Scenario Description

In this scenario, U2100 networks already provide contiguous coverage in urban or denselypopulated areas. To expand coverage to rural areas, U900/U850 networks are deployed. BecauseU900 and U850 networks are less costly, deploying them greatly reduces the deployment costsin rural areas. Figure 3-1 shows this scenario.

Figure 3-1 Scenario 1

3.1.2 Solution PurposeU900/U850 networks are deployed in rural areas and they overlap the existing U2100 networks.

WCDMA RANUMTS U900 and U850 Network Solution Guide 3 Solution Application Guidelines


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In this scenario, the objective of the solution is to ensure that UEs can be successfully handedover between cells in U900/U850 networks (hereafter referred to as U900/U850 cells) and cellsin U2100 networks (hereafter referred to as U2100 cells).

3.1.3 Solution DescriptionThe following are the major processes that are employed by the solution to hand over UEsbetween U2100 cells and U900/U850 cells:l Coverage-based cell reselection for UEs in idle mode and for UEs in the CELL_PCH or

CELL_FACH statel Coverage-based inter-frequency-band handover for UEs in the CELL_DCH state

List of Features Involved in the SolutionTable 3-1 lists the features involved in this scenario.

Table 3-1 Features involved in this scenarioFeature ID Feature Name Introduced

In...Reference Document

WRFD-010401 System InformationBroadcasting

RAN2.0 UE Behaviors in IdleFeature ParameterDescription

WRFD-010202 UE State in ConnectedMode (CELL-DCH,CELL-PCH, URA-PCH, CELL-FACH)

RAN2.0 URA/Cell Update FeatureParameter Description

WRFD-010801 Intra RNC Cell Update RAN2.0 URA/Cell Update FeatureParameter Description

WRFD-010802 Inter RNC Cell Update RAN2.0 URA/Cell Update FeatureParameter Description

WRFD-020302 Inter Frequency HardHandover Based onCoverage

RAN2.0 Handover FeatureParameter Description

WRFD-020110 Multi Frequency BandNetworkingManagement

RAN10.0 Multi-Frequency BandNetworking ManagementFeature ParameterDescription

Description of Features Involved in the SolutionTable 3-2 provides the brief descriptions of the features listed in Table 3-1.



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Table 3-2 Feature descriptionFeature ID Feature Name Feature DescriptionWRFD-010401 System Information Broadcasting This feature is used to enable UEs

to perform cell reselectionbetween different frequencybands.

WRFD-010202 UE State in Connected Mode(CELL-DCH, CELL-PCH, URA-PCH, CELL-FACH)

This feature is used to support UEsin the URA_PCH, CELL_PCH,CELL_FACH, or CELL_DCHstate.

WRFD-010801 Intra RNC Cell Update This feature is used to supportintra-RNC cell update triggeredby the causes specified by 3GPP.

WRFD-010802 Inter RNC Cell Update This feature is used to supportinter-RNC cell update triggeredby the causes specified by 3GPP.

WRFD-020302 Inter Frequency Hard HandoverBased on Coverage

This feature is used to supportcoverage-based inter-frequencyhandover.

WRFD-020110 Multi Frequency BandNetworking Management

This feature is used to enableinter-frequency-band mobilitymanagement.

3.1.4 ImplementationActivate all of the features listed in Table 3-1. These features can be activated simultaneously.

NOTE

This section only provides the items you need to pay attention to when using these features. For details onhow to deploy and activate the features, see the related reference.

When planning and configuring data, configure U900/U850 cells as mutual neighboring cellsfor U2100 cells on the boarder of the U2100 networks and U900/U850 networks. In addition,set HOCovPrio and SIB11Ind to 0 and TRUE, respectively.

NOTE

The HOCovPrio parameter indicates the priority of coverage-based inter-frequency handover in aneighboring cell. When the parameter is set to 0, the neighboring cell does not support coverage-basedinter-frequency handover. When the parameter is set to 1, coverage-based inter-frequency handover hasthe highest priority in the neighboring cell. When the parameter is set to 3, coverage-based inter-frequencyhandover has the lowest priority in the neighboring cell.For details about parameters involved, see BSC6900 UMTS Parameter Reference or BSC6910 UMTSParameter Reference.



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3.2 Scenario 2 Offloading for Hotspots in Urban Areas3.2.1 Scenario Description

U2100 networks with contiguous coverage are deployed in urban areas. To expand UMTScapacity, U900/U850 networks are deployed in some hot spots and some of the load from theU2100 networks is shifted to the U900/U850 networks. The coverage in the U900/U850networks is not contiguous. As a result, coverage-triggered inter-frequency handovers as wellas ping-pong handovers are easily triggered. Figure 3-2 shows this scenario.


NOTE

In Figure 3-2, CoSector indicates that a U2100 cell shares a site and an antenna azimuth with a U900/U850cell, and CoSite indicates that a U2100 cell only shares a site with a U900/U850 cell.

3.2.2 Solution PurposeIn this scenario, the objective of the solution is to ensure that U900/U850 networks can offloada certain amount of traffic from U2100 networks.The coverage in the U900/U850 networks in this scenario is not contiguous. As a result,coverage-triggered inter-frequency handovers as well as ping-pong handovers are easilytriggered. In this case, another objective of the solution is to control coverage-triggered inter-frequency handovers and prevent ping-pong handovers.

3.2.3 Solution DescriptionThe following are the major processes employed by the solution:



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l For UEs in idle mode and UEs in the CELL_PCH or CELL_FACH state:Enabling UEs to randomly camp on U2100 or U900/U850 cells using cell-reselectionparameters(Recommended) Setting a threshold for camping on the target cell to reduce the number ofUEs that camp on U2100 cell edges and the number of coverage-based inter-frequencyhandovers

l For UEs in the CELL_DCH state: When U900/U850 cells share a site and an antenna azimuth with U2100 cells:

Shifting PS UEs in U2100 cells in the basic congestion state to U900/U850 cells usingload-triggered inter-frequency blind handover When U900/U850 cells only share a site with U2100 cells:

Shifting PS UEs in U2100 cells in the basic congestion state to U900/U850 cells usingload-triggered measurement-based inter-frequency handover. This operation preventsUEs from being blindly handed over to incorrect U900/U850 cells when U2100 cellsand U900/U850 cells use different frequencies but cover the same area.

Perform the following operations to prevent ping-pong handovers between U2100 cells andU900/U850 cells:l Disable UEs in U900/U850 cells from being shifted to U2100 cells that do not share a site

with the U900/U850 cells using coverage-based inter-frequency handover.l Enable UEs in U2100 cells to be shifted to U900/U850 cells that share a site with U2100

cells using coverage-based inter-frequency handover.



in...Reference Document



WRFD-010202 UE State in ConnectedMode (CELL-DCH,CELL-PCH, URA-PCH,CELL-FACH)





RAN2.0 Handover FeatureParameter Description



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Feature ID Feature Name Introducedin...

Reference Document

WRFD-020106 Load Reshuffling RAN2.0 Load Reshuffling FeatureParameter Description

WRFD-020103 Inter Frequency LoadBalance

RAN2.0 Inter Frequency LoadBalance FeatureParameter Description



WRFD-020160 Enhanced MultibandManagement



Table 3-4 Feature descriptionFeature ID Feature Name Feature DescriptionWRFD-010401 System Information

BroadcastingThis feature is used to enable UEs toperform cell reselection betweendifferent frequency bands.

WRFD-010202 UE State in Connected Mode(CELL-DCH, CELL-PCH,URA-PCH, CELL-FACH)

This feature is used to support UEs inthe URA_PCH, CELL_PCH,CELL_FACH, or CELL_DCH state.

WRFD-010801 Intra RNC Cell Update This feature is used to support intra-RNC cell update triggered by thecauses specified by 3GPP.

WRFD-010802 Inter RNC Cell Update This feature is used to support inter-RNC cell update triggered by thecauses specified by 3GPP.

WRFD-020302 Inter Frequency Hard HandoverBased on Coverage




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Feature ID Feature Name Feature DescriptionWRFD-020106 Load Reshuffling This feature provides multiple load

reshuffling policies that a cell in thebasic congestion state can use todecrease the cell load and increase theaccess success rate.

WRFD-020103 Inter Frequency Load Balance This feature enables some UEs in acell in the basic congestion state to behanded over to an inter-frequency co-coverage cell to reduce the load of thesource cell. This feature employsload-triggered inter-frequency blindhandover and load-triggeredmeasurement-based inter-frequencyhandover.


This feature is used to enable inter-frequency-band mobilitymanagement on UEs in co-coveragecells.


This feature is used to support load-triggered measurement-based inter-frequency-band handover.


NOTE


When planning and configuring data, note the following for UEs in different states.l For UEs in idle mode:

You are advised to set the IdleSintersearch parameter to a large value (for example 6 or127) for U900/U850 cells to enable UEs to initiate signal quality measurement on inter-frequency cells as early as possible. You are also advised to set the IdleQoffset2snparameter to 3 dB for cells and their neighboring cells to enable UEs in idle mode topreferentially camp on U2100 cells. This reduces the load of U900/U850 cells.

l For UEs in the CELL_PCH or CELL_FACH state:You are advised to set the ConnSintersearch parameter to the recommended value forU900/U850 cells. If the FACHs in the U900/U850 cells are congested, set this parameterto a large value (for example, 6) to enable UEs to initiate signal quality measurement onU2100 cells as early as possible. Doing so allows UEs in U900/U850 cells to be shifted toU2100 cells in time through cell reselection.



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Table 3-5 lists the cell-reselection parameter settings generally recommended for UEs in idlemode and UEs in the CELL_PCH or CELL_FACH state.

Table 3-5 Cell-reselection parameter settings generally recommended for UEs in idle mode andUEs in the CELL_PCH or CELL_FACH state

Parameter ID Recommended Value forU900/U850 cells

Recommended Value forU2100 Cells

Command: ADD UCELLSELRESELQqualmin -18 dB (-18) -18 dB (-18)Qrxlevmin -115 dBm (-58) -115 dBm (-58)Qhyst2 2 dB (1) 2 dB (1)IdleSintrasearch 127 10 dB (5)IdleSintersearch 127 8 dB (4)SIB4 ON OFFConnSintrasearch 10 dB (5) 10 dB (5)ConnSintersearch 8 dB (4) 8 dB (4)Command: ADD UINTERFREQNCELLInterNCellQualReqFlag TRUE NAQqualmin -12 dB (-12) NAQrxlevmin -101 dBm (-51) NA


For U2100 cells, set the BlindHoFlag parameter to TRUE to ensure that UEs in U2100cells can be blindly handed over to U900/U850 cells.For U900/U850 cells, select the InterFreqLDHO check box under the parametersrelated to uplink or downlink LDR actions in the ADD UCELLLDR command. When U900/U850 cells only share a site with U2100 cells:

For U900/U850 cells, select the InterFreqLDHO check box under the parametersrelated to uplink or downlink LDR actions in the ADD UCELLLDR command. Inaddition, set the InterFreqLDHOMethodSelection and DrdOrLdrFlag parameters toMEASUREHO and TRUE, respectively.

Table 3-6 provides the recommended settings for parameters related to inter-cell interoperabilityfor U900/U850 and U2100 cells.



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Table 3-6 Recommended settings for parameters related to inter-cell interoperability for U900/U850 and U2100 cells

Cell NeighboringCell

CellRelationship

Parameter:SIB11

IdleQoffset2sn

HOCovPrio

BlindHoFlag

DrdOrLdrFlag

U2100cells

U900/U850cells

CoSector

TRUE 3 2 TRUE FALSE

CoSite TRUE 3 2 TRUE TRUENo-CoSite

TRUE 3 0 FALSE FALSE

U900/U850cells

U2100cells

CoSector

TRUE -3 2 FALSE TRUE

CoSite TRUE -3 2 FALSE TRUENo-CoSite


NOTE

In Table 3-6 No-CoSite indicates that U2100 cells do not share a site with U900/U850 cells.

3.3 Scenario 3 Urban Intensive Coverage3.3.1 Scenario Description

U2100 networks provide contiguous coverage in urban areas. To achieve intensive coverage inthese areas, U900/U850 networks providing contiguous coverage are deployed. Figure 3-3shows this scenario.



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3.3.2 Solution PurposeIn this scenario, the objective of the solution is to ensure that U900/U850 networks can addressthe weak coverage issue and provide services in coverage holes. Another objective of the solutionis to prevent U900/U850 cells from being overloaded by loads from the U2100 cells.

3.3.3 Solution DescriptionThe following are the major processes employed by the solution:l For UEs in idle mode and UEs in the CELL_PCH or CELL_FACH state:

Enabling UEs to randomly camp on U2100 or U900/U850 cells using cell-reselectionparameters(Recommended) Setting a threshold for camping on the target cell to reduce the number ofUEs that camp on U2100 cell edges and the number of coverage-based inter-frequencyhandovers

l For UEs in the system access state: When U900/U850 cells share a site and an antenna azimuth with U2100 cells:

Shifting HSDPA UEs in U900/U850 cells to U2100 cells through load-balancing-triggered DRD-based blind handoverUsing UE-location-based multi-frequency-band directed retry to prevent UEs on U900/U850 cell edges from being blindly handed over to U2100 cells. This operation canprevent UEs from U2100 cell access failures. When U900/U850 cells only share a site with U2100 cells:

Redirecting PS UEs in U900/U850 cells to U2100 cellsl For UEs in the CELL_DCH state:



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When U900/U850 cells share a site and an antenna azimuth with U2100 cells:Shifting PS UEs in U900/U850 cells in the basic congestion state to U2100 cells usingload-triggered inter-frequency blind handover When U900/U850 cells only share a site with U2100 cells:

Shifting PS UEs in U900/U850 cells in the basic congestion state to U2100 cells usingload-triggered measurement-based inter-frequency handover. This operation canprevent UEs from being blindly handed over to incorrect U2100 cells when U900/U850cells and U2100 cells use different frequencies but cover the same area.

To prevent ping-pong handover between U2100 cells and U900/U850 cells, you are advised toensure that UEs in U2100 cells can be shifted to U900/U850 cells through coverage-based inter-frequency handover. Furthermore, you are not advised to allow UEs in U900/U850 cells to beshifted to U2100 cells through coverage-based inter-frequency handover.


Table 3-7 Features involved in this scenarioFeature ID Feature Name Introduc

ed in...Reference Document


RAN2.0 UE Behaviors in Idle FeatureParameter Description






RAN2.0 Handover Feature ParameterDescription

WRFD-020106 Load Reshuffling RAN2.0 Load Reshuffling FeatureParameter Description

WRFD-020103 Inter Frequency LoadBalance

RAN2.0 Inter Frequency Load BalanceFeature Parameter Description

WRFD-020400 DRD IntroductionPackage

RAN3.0 Directed Retry DecisionFeature Parameter Description

WRFD-020110 Multi Frequency BandNetworkingManagement

RAN10.0 Multi-Frequency BandNetworking ManagementFeature Parameter Description



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Feature ID Feature Name Introduced in...

Reference Document

WRFD-02040004

Traffic Steering andLoad Sharing DuringRAB Setup


WRFD-020120 Service Steering andLoad Sharing in RRCConnection Setup

RAN11.0 Intelligent Access ControlFeature Parameter Description


RAN12.0 SingleRAN Multi-FrequencyBand Networking ManagementFeature Parameter Description

WRFD-150232 Multiband Direct RetryBased on UE Location






This feature is used to support UEs inthe URA_PCH, CELL_PCH,CELL_FACH, or CELL_DCH state.

WRFD-010801 Intra RNC Cell Update This feature is used to support intra-RNC cell update triggered by thecauses specified by 3GPP.

WRFD-010802 Inter RNC Cell Update This feature is used to support inter-RNC cell update triggered by thecauses specified by 3GPP.

WRFD-020302 Inter Frequency HardHandover Based on Coverage


WRFD-020106 Load Reshuffling This feature provides multiple loadreshuffling policies that a cell in thebasic congestion state can use todecrease the cell load and increase theaccess success rate.



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Feature ID Feature Name Feature DescriptionWRFD-020103 Inter Frequency Load Balance This feature enables some UEs in a cell

in the basic congestion state to behanded over to an inter-frequency co-coverage cell to reduce the load of thesource cell. This feature employs load-triggered inter-frequency blindhandover and load-triggeredmeasurement-based inter-frequencyhandover.

WRFD-020400 DRD Introduction Package This feature is used to ensure that UEscan perform directed retry andredirection between inter-frequencyco-coverage cells.


This feature is used to enable inter-frequency-band mobility management.

WRFD-02040004

Traffic Steering and LoadSharing During RAB Setup

This feature provides load-balancing-based directed retry for HSDPA UEs.In addition, this feature allows theUTRAN to consider cell loads andservice types during RAB assignmentto implement traffic steering and loadsharing between different frequenciesor frequency bands.

WRFD-020120 Service Steering and LoadSharing in RRC ConnectionSetup

This feature allows the UTRAN toconsider cell loads and service typesduring RRC connection setup toimplement service steering and loadsharing between different frequenciesthrough redirection.


This feature is used to support load-triggered measurement-based inter-frequency-band handover.

WRFD-150232 Multiband Direct Retry Basedon UE Location

This feature allows the UTRAN toconsider path loss during service setupor service reconfiguration when multi-frequency-band networking is applied.In this way, this feature allocates UEsto different frequency bands and U900/U850 cells can serve cell edge UEs.



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3.3.4 ImplementationActivate all of the features listed in Table 3-7. These features can be activated simultaneouslyexcept the three described in the following paragraphs. The activation of these three featuresdepends on the scenario.l Traffic Steering and Load Sharing During RAB Setup

You are advised to activate this feature for carriers within the same frequency band.l Service Steering and Load Sharing in RRC Connection Setup

You are advised to activate this feature when U900/850 and U2100 cells share the samesite but have different antenna azimuths.

l Multiband Direct Retry Based on UE LocationYou are advised to activate this feature when U900/850 and U2100 cells share the samesite and have the same antenna azimuth.

NOTE


When planning and configuring data, note the following:l For UEs in idle mode:

You are advised to set the IdleSintersearch parameter to a large value (for example 6 or127) for U900/U850 cells to enable UEs to initiate signal quality measurement on inter-frequency cells as early as possible. You are also advised to set the IdleQoffset2snparameter to 3 dB to enable UEs in idle mode to preferentially camp on U2100 cells. Thisreduces the load of U900/U850 cells.



Table 3-9 Cell-reselection parameter settings generally recommended for UEs in idle mode andUEs in the CELL_PCH or CELL_FACH state



Command: ADD UCELLSELRESELQqualmin -18 dB (-18) -18 dB (-18)Qrxlevmin -115 dBm (-58) -115 dBm (-58)Qhyst2 2 dB (1) 2 dB (1)IdleSintrasearch 127 10 dB (5)



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IdleSintersearch 127 8 dB (4)SIB4 ON OFFConnSintrasearch 10 dB (5) 10 dB (5)ConnSintersearch 8 dB (4) 8 dB (4)Command: ADD UINTERFREQNCELLInterNCellQualReqFlag TRUE NAQqualmin -12 dB (-12) NAQrxlevmin -101 dBm (-51) NA

l For UEs in the system access state: When U900/U850 cells share a site and an antenna azimuth with U2100 cells:

You are advised to set the BlindHoFlag parameter to TRUE to enable UEs in U900/U850 cells to be blindly handed over to neighboring U2100 cells.Set the LdbDRDSwitchHSDPA parameter to ON for U900/U850 cells to activate theload-balancing-triggered directed retry algorithm for HSDPA services.Set the BlindHOQualityCondition parameter to prevent UEs on U900/U850 cell edgesfrom failing to be blindly handed over to U2100 cells. This prevents UEs from U2100cell access failures.Turn on the RNC_RBSETUP_DRD_FAIL_ROLLBACK_SWITCH under thePROCESSSWITCH2 parameter to ensure that UEs can fall back to their source cellsif they fail to set up radio bearers (RBs).Configure the following parameters related to the feature Multiband Direct Retry Basedon UE Location, as listed in Table 3-10.

Table 3-10 Recommended settings for parameters related to Multiband Direct RetryBased on UE Location for UEs in the system access state

Parameter ID Recommended Valuefor U900/U850 cells

Recommended Valuefor U2100 Cells

Command: SET UDRD or ADD UCELLDRDBasedUELocDRDSwitch OFF ONTraffTypeForBasedUE-Loc

RT-0&NRT-0 RT-0&NRT-1

BasedUELocDRDRe-mainThd

60 30

PathlossThdForEdge 113 133



21

Parameter ID Recommended Valuefor U900/U850 cells

Recommended Valuefor U2100 Cells

PathlossThdForCenter 113 133Command: ADD UINTERFREQNCELLBlindHoFlag Collocated U2100 F2/F3/

F4Collocated U2100 F2/F3/F4

BlindHOQualityCondi-tion

-85 -92 (default)

When U900/U850 cells only share a site with U2100 cells:

For U900/U850 cells, configure the following parameters related to the feature ServiceSteering and Load Sharing in RRC Connection Setup:Set the TrafficType and RedirSwitch parameters to PSHSPA andONLY_TO_INTER_FREQUENCY, respectively.Set the RedirFactorOfNorm parameter based on the quantity of loads that are plannedto be shifted from U2100 cells to U900/U850 cells.


For U900/U850 cells, you are advised to set the BlindHoFlag parameter to TRUE toensure that UEs in U900/U850 cells can be blindly handed over to U2100 cells.For U900/U850 cells, you are advised to select the InterFreqLDHO check box underthe parameters related to uplink or downlink LDR actions in the ADD UCELLLDRcommand. When U900/U850 cells only share a site with U2100 cells:

For U900/U850 cells, you are advised to select the InterFreqLDHO check box underthe parameters related to uplink or downlink LDR actions in the ADD UCELLLDRcommand. Then, set the InterFreqLDHOMethodSelection and DrdOrLdrFlagparameters to MEASUREHO and TRUE, respectively.

Table 3-11 provides the recommended settings for parameters related to inter-cellinteroperability for U900/U850 and U2100 cells.

Table 3-11 Recommended settings for parameters related to inter-cell interoperability for U900/U850 and U2100 cells


CellRelationship

SIB11 IdleQoffset2sn

HOCovPrio

BlindHoFlag

DrdOrLdrFlag

U2100cells

U900/U850cells

CoSector

TRUE 3 2 TRUE FALSE

CoSite TRUE 3 2 TRUE TRUE



22


CellRelationship

SIB11 IdleQoffset2sn

HOCovPrio

BlindHoFlag

DrdOrLdrFlag

No-CoSite

TRUE 3 0 FALSE FALSE

U900/U850cells

U2100cells

CoSector

TRUE -3 0 TRUE FALSE

CoSite TRUE -3 0 FALSE TRUENo-CoSite


3.4 Scenario 4 Stacked Networking3.4.1 Scenario Description

An operator already deploys a U2100 network using a vendor's devices in an area and wants todeploy a U900/U850 network using another vendor's devices in the same area to form a stackednetwork. Figure 3-4 shows this scenario.




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3.4.2 Solution PurposeIn this scenario, the objective of the solution is to ensure the following:l Services are properly allocated between U2100 and U900/U850 networks.l The resource utilization in U2100 and U900/U850 networks is high.l The deployment of the U900/U850 networks does not cause key performance indicator

(KPI) values to deteriorate or increase network reconstruction costs.l UEs can be handed over between U2100 and U900/U850 networks.l Load sharing can be achieved between U2100 and U900/U850 networks.

3.4.3 Solution DescriptionThe following are the major processes that are employed by the solution to hand over UEs thatare located in weak-coverage areas or coverage holes in U2100 cells to U900/U850 cells:l For UEs in idle mode and UEs in the CELL_PCH or CELL_FACH state:

Enabling UEs to randomly camp on U2100 or U900/U850 cells using cell-reselectionparameters

l For UEs in the system access state:Redirecting PS UEs in U900/U850 cells to U2100 cells

l For UEs in the CELL_DCH state:Compatibility tests are required because UEs in the CELL_DCH state are to be handedover between U900/U850 and U2100 cells. To prevent compatibility issues, enable UEs inthese cells to shift to GSM cells through coverage-based inter-RAT handover and then fallback to UMTS cells through cell reselection.Inter-Frequency Load Balancing Based on Configurable Load Threshold (CLB) can beperformed to shift PS UEs in U900/U850 cells that are in the basic congestion state toU2100 cells.Major processes employed by the solution to prevent ping-pong handovers between U2100and U900/U850 cells are as follows: If U900/U850 cells provide contiguous coverage, the recommended process is

coverage-based inter-frequency handover for UEs in U2100 cells to shift to U900/U850cells. However, you are advised to prohibit UEs in U900/U850 cells from shifting toU2100 cells through coverage-based inter-frequency handover. If U900/U850 cells do not provide contiguous coverage, the recommended process is

coverage-based inter-frequency handover for UEs in U900/U850 cells to shift to U2100cells that do not share sites with U900/U850 cells and for UEs in U2100 cells to shiftto U900/U850 cells that share a site with U2100 cells.




24









WRFD-020120 Service Steering andLoad Sharing in RRCConnection Setup

RAN11.0 Intelligent Access ControlFeature ParameterDescription

WRFD-140217 Inter-Frequency LoadBalancing Based onConfigurable LoadThreshold

RAN14.0 Inter-Frequency LoadBalancing Based onConfigurable LoadThreshold FeatureParameter Description





This feature is used to support UEs in theURA_PCH, CELL_PCH,CELL_FACH, or CELL_DCH state.

WRFD-010801 Intra RNC Cell Update This feature is used to support intra-RNC cell update triggered by the causesspecified by 3GPP.



25

Feature ID Feature Name Feature DescriptionWRFD-010802 Inter RNC Cell Update This feature is used to support inter-

RNC cell update triggered by the causesspecified by 3GPP.


During RRC connection setup, thisfeatures implements inter-frequencyservice steering based on connectionsetup causes. Based on the load andredirection proportion of the target cell,this feature implements load sharingbetween inter-frequency cells that coverdifferent areas.

WRFD-140217 Inter-Frequency LoadBalancing Based onConfigurable Load Threshold

This feature implements load balancingbetween inter-frequency cells thatbelong to different RNCs.


NOTE


When planning and configuring data, note the following:l For UEs in idle mode:

You are advised to set the IdleSintersearch parameter to a large value (for example 6 or127) for U900/U850 cells to enable UEs to initiate signal quality measurement on inter-frequency cells as early as possible. You are also advised to set the IdleQoffset2snparameter to 3 dB for cells and their neighboring cells to enable UEs in idle mode topreferentially camp on U2100 cells. This reduces the load of U900/U850 cells.





26

Table 3-14 Cell-reselection parameter settings generally recommended for UEs in idle modeand UEs in the CELL_PCH or CELL_FACH state



Command: ADD UCELLSELRESELQqualmin -18 dB (-18) -18 dB (-18)Qrxlevmin -115 dBm (-58) -115 dBm (-58)Qhyst2 2 dB (1) 2 dB (1)IdleSintrasearch 127 10 dB (5)IdleSintersearch 127 8 dB (4)SIB4 ON OFFConnSintrasearch 10 dB (5) 10 dB (5)ConnSintersearch 8 dB (4) 8 dB (4)Command: ADD UINTERFREQNCELLInterNCellQualReqFlag TRUE NAQqualmin -12 dB (-12) NAQrxlevmin -101 dBm (-51) NA

l For UEs in the system access state:For U900/U850 cells, configure the following parameters related to service-basedredirection:Set the TrafficType and RedirSwitch parameters to PSHSPA andONLY_TO_INTER_FREQUENCY, respectively.Set the parameter based on the quantity of loads that are shifted from U2100 cells to U900/U850 cells.

l For UEs in the CELL_DCH state:For U900/U850 cells, select the UL_UU_CLB, DL_UU_CLB, CELL_CODE_CLB, orCELL_CREDIT_CLB check box under the NBMLdcAlgoSwitch parameter. For U2100cells, set the CLBFlag and CLBPrio parameters to appropriate values.

3.5 Scenario 5 External Interference3.5.1 Scenario Description

Many objects cause external interference to U900/U850 networks. These objects include streetlights, walkie-talkies, TV amplifiers, and even electronic billboards. Figure 3-5 shows externalinterference on U900/U850 networks from many objects.



27

Figure 3-5 External interference that affects U900/U850 networks

3.5.2 Solution PurposeIn this scenario, the solution requires that the UTRAN support interference detection andsuppression. The objective of the solution is to reduce impact of external interference on U900/U850 networks in the uplink. In the downlink, you must manually detect external interference.

3.5.3 Solution DescriptionIn this scenario, the solution uses the Narrowband Interference Suppression feature to detect andsuppress external uplink narrowband interference of less than 400 kHz. You must manuallydetect external uplink interference of greater than 400 kHz and external downlink interference.

List of Features Involved in the SolutionTable 3-15 lists the feature involved in this scenario.

Table 3-15 Feature involved in this scenarioFeature ID Feature Name Introduced in... Reference DocumentWRFD-140225 Narrowband

InterferenceSuppression

RAN15.0 Narrowband InterferenceSuppression FeatureParameter Description



28

Feature ID Feature Name Introduced in... Reference DocumentNA UMTS Uplink

NarrowbandInterferenceDetection

GENEX NastarV600R014C00

Nastar professionalservice

Description of Features Involved in the SolutionTable 3-16 provides the brief descriptions of the feature listed in Table 3-15.

Table 3-16 Feature descriptionFeature ID Feature Name Feature DescriptionWRFD-140225 Narrowband

InterferenceSuppression

With this feature, the NodeB scans the frequencyspectrum within the receive bandwidth of a UMTScarrier to rapidly identify stable narrowbandinterference (with millisecond-level changes infrequency or power) and dynamically configures afilter stopband on the receiver to suppressnarrowband interferences.

NA UMTS UplinkNarrowbandInterferenceDetection

Narrowband interference detection is performed inthe time domain and the frequency domain.l Narrowband interference detection in the time

domain can detect the interference signals thatincrease the background noise by an average ofover 6 dB in a measurement period.

l Narrowband interference detection in thefrequency domain is more precise. It can detectthe interface signals of less than 2 MHzbandwidth, which increase the instantaneousRTWP value by over 5 dB in a consecutive periodof 15s.

Narrowband interference detection canautomatically identify the cells with interference inbatches and output a narrowband interferencespectrum graph for each cell.

3.5.4 ImplementationActivate the feature listed in Table 3-15.

NOTE

This section only provides the items you need to pay attention to when using the feature. For details onhow to deploy and activate the feature, see the related reference.



29

The Narrowband Interference Suppression feature enables the NodeB to rapidly identify stablenarrowband interference that lasts for more than 40 ms, has a bandwidth of less than 400 kHz,and produces noise 7 to 35 dB louder than the background noise of the NodeB. After this featureis activated, a filter stopband is added to a remote radio unit (RRU). This prolongs the uplinkdelay and slightly affects uplink demodulation performance. Therefore, it is recommended thatthis feature be activated only when there is external narrowband interference.The prolonged delay may decrease the success rate of softer handovers between cells with thisfeature enabled and cells without this feature. Therefore, it is recommended that this feature beenabled for all the cells that use the same frequency and belong to the same NodeB.For details about how to activate and use UMTS Uplink Narrowband Interference Detection,contact Huawei technical support for professional services.

3.6 Scenario 6 Non-standard UMTS Bandwidth

3.6.1 Scenario DescriptionThe standard bandwidth for a UMTS carrier is 5 MHz. However, the limited spectrum resourcescannot meet the growing demands caused by UMTS service expansion. The conflict betweenresource limitation and service expansion is especially evident in the 900 MHz and 850 MHzfrequency bands. Some telecom operators cannot reserve a standard bandwidth of 5 MHz fromthe 900 MHz or 850 MHz frequency band. In this case, UMTS carriers are configured with anon-standard bandwidth (for example, 3.8 MHz or 4.2 MHz).The non-standard frequency spacing is implemented between:l UMTS carriers

The non-standard frequency spacing between UMTS carriers is less than 5 MHz, as shownin Figure 3-6.

l GSM and UMTS carriersThe non-standard frequency spacing between GSM and UMTS carriers is less than 2.6MHz, as shown in Figure 3-7.

Figure 3-6 Non-standard frequency spacing between UMTS carriers



30

Figure 3-7 Non-standard frequency spacing between GSM and UMTS carriers

3.6.2 Solution PurposeIn this scenario, the objective of the solution is to ensure that U900/U850 networks can workwith a non-standard bandwidth of less than 5 MHz.

3.6.3 Solution DescriptionIn this scenario, UMTS carriers are configured with a bandwidth of 3.8 or 4.2 MHz.




WRFD-021001 Flexible frequencybandwidth of UMTScarrier

RAN12.0 GU 900 MHz Non-standardFrequency Spacing FeatureParameter Description

MRFD-221804 GSM Power Control onInterference Frequencyfor GU Small Frequencygap

SRAN7.0 GU 900 MHz Non-standardFrequency Spacing FeatureParameter Description

MRFD-221703 2.0 MHz CentralFrequency PointSeparation BetweenGSM and UMTS Modes

SRAN6.0 GU 900 MHz Non-standardFrequency Spacing FeatureParameter Description




31

Table 3-18 Feature descriptionFeature ID Feature Name Feature DescriptionWRFD-021001 Flexible frequency

bandwidth of UMTScarrier

This feature flexibly provides abandwidth within the range of 4.2 to 5MHz for UMTS carriers.

MRFD-221804 GSM Power Control onInterference Frequency forGU Small Frequency gap

The power of the GSM center frequencythat is spaced 2.0 MHz away from theUMTS center frequency is lowered,thereby decreasing the downlinkinterference of GSM to UMTS.

MRFD-221703 2.0 MHz CentralFrequency PointSeparation Between GSMand UMTS Modes

This feature provides the 2 MHzfrequency spacing between a GSMcarrier and a UMTS carrier.

3.6.4 ImplementationActivate all of the features listed in Table 3-17 according to the following instructions.l Flexible frequency bandwidth of UMTS carrier

Activate this feature when the UMTS carrier bandwidth is between 4.2 MHz and 5 MHz.You do not have to activate this feature when the UMTS carrier bandwidth is 5 MHz.

l 2.0 MHz Central Frequency Point Separation Between GSM and UMTS ModesActivate this feature when the UMTS carrier bandwidth is 3.8 MHz.

l GSM Power Control on Interference Frequency for GU Small Frequency gapActivate this feature when the UMTS carrier bandwidth is less than 5 MHz.

NOTE


Before activating the features, ensure that RF modules support these features.To reduce the impact of non-standard frequency spacing on network KPI values, you are advisedto purchase Huawei professional services.



32

4 List of Features Involved in the SolutionFeature ID Feature Name Introduced

In...Reference Document


RAN2.0 URA/Cell Update Feature ParameterDescription


RAN2.0 UE Behaviors in Idle Feature ParameterDescription

WRFD-010801 Intra RNC Cell Update RAN2.0 URA/Cell Update Feature ParameterDescription

WRFD-010802 Inter RNC Cell Update RAN2.0 URA/Cell Update Feature ParameterDescription

WRFD-020103 Inter Frequency Load Balance RAN2.0 Inter Frequency Load Balance FeatureParameter Description

WRFD-020106 Load Reshuffling RAN2.0 Load Reshuffling Feature ParameterDescription


RAN10.0 Multi-Frequency Band NetworkingManagement Feature ParameterDescription


RAN11.0 Intelligent Access Control FeatureParameter Description


RAN12.0 Multi-Frequency Band NetworkingManagement Feature ParameterDescription

WRFD-020302 Inter Frequency HardHandover Based on Coverage

RAN2.0 Handover Feature ParameterDescription

WRFD-020400 DRD Introduction Package RAN3.0 Directed Retry Decision FeatureParameter Description

WCDMA RANUMTS U900 and U850 Network Solution Guide 4 List of Features Involved in the Solution


33

Feature ID Feature Name IntroducedIn...

Reference Document

WRFD-02040004

Traffic Steering and LoadSharing During RAB Setup

RAN10.0 Directed Retry Decision FeatureParameter Description

WRFD-021001 Flexible frequency bandwidthof UMTS carrier

RAN12.0 GU 900 MHz Non-standard FrequencySpacing Feature Parameter Description

WRFD-140217 Inter-Frequency LoadBalancing Based onConfigurable Load Threshold

RAN14.0 Inter-Frequency Load Balancing Basedon Configurable Load Threshold FeatureParameter Description

WRFD-140225 Narrowband InterferenceSuppression

RAN15.0 Narrowband Interference SuppressionFeature Parameter Description

NA UMTS Uplink NarrowbandInterference Detection

GENEX NastarV600R014C00

Nastar professional service

WRFD-150232 Multiband Direct Retry Basedon UE Location

RAN15.0 Directed Retry Decision FeatureParameter Description

MRFD-221703 2.0 MHz Central FrequencyPoint Separation BetweenGSM and UMTS Modes

SRAN6.0 GU 900 MHz Non-standard FrequencySpacing Feature Parameter Description

MRFD-221804 GSM Power Control onInterference Frequency forGU Small Frequency gap

SRAN7.0 GU 900 MHz Non-standard FrequencySpacing Feature Parameter Description

WCDMA RANUMTS U900 and U850 Network Solution Guide 4 List of Features Involved in the Solution


34

5 Acronyms and AbbreviationsAcronym andAbbreviation

Full Name

BlindHO Blind HandoverCLB Inter-Frequency Load Balancing Based on Configurable Load

ThresholdDRD Directed Retry DecisionGSM Global System for Mobile CommunicationsHSDPA High Speed Downlink Packet AccessHSPA High Speed Packet AccessIFHO Inter-frequency HandoverKPI Key Performance IndicatorLDB Load BalancingLDR Load ReshufflingMSC Mobile Switching CenterRNC Radio Network ControllerSGSN Serving GPRS Support NodeSHO Soft HandoverUE User EquipmentUMTS Universal Mobile Telecommunications System

WCDMA RANUMTS U900 and U850 Network Solution Guide 5 Acronyms and Abbreviations


35

6 Reference Documents1. Directed Retry Decision Feature Parameter Description2. GU 900 MHz Non-standard Frequency Spacing Feature Parameter Description3. Handover Feature Parameter Description4. Intelligent Access Control Feature Parameter Description5. Inter Frequency Load Balance Feature Parameter Description6. Inter-Frequency Load Balancing Based on Configurable Load Threshold Feature

Parameter Description7. Load Reshuffling Feature Parameter Description8. Multi-Frequency Band Networking Management Feature Parameter Description9. Narrowband Interference Suppression Feature Parameter Description10. UE Behaviors in Idle Feature Parameter Description11. URA/Cell Update Feature Parameter Description

WCDMA RANUMTS U900 and U850 Network Solution Guide 6 Reference Documents


36

Contents1 About This Document1.1 Scope1.2 Intended Audience1.3 Change History

2 Solution Overview2.1 Background2.2 Application Scenarios2.3 Overall Solution

3 Solution Application Guidelines3.1 Scenario 1 Wide Suburban Coverage3.1.1 Scenario Description3.1.2 Solution Purpose3.1.3 Solution Description3.1.4 Implementation

3.2 Scenario 2 Offloading for Hotspots in Urban Areas3.2.1 Scenario Description3.2.2 Solution Purpose3.2.3 Solution Description3.2.4 Implementation

3.3 Scenario 3 Urban Intensive Coverage3.3.1 Scenario Description3.3.2 Solution Purpose3.3.3 Solution Description3.3.4 Implementation

3.4 Scenario 4 Stacked Networking3.4.1 Scenario Description3.4.2 Solution Purpose3.4.3 Solution Description3.4.4 Implementation

3.5 Scenario 5 External Interference3.5.1 Scenario Description3.5.2 Solution Purpose3.5.3 Solution Description3.5.4 Implementation

3.6 Scenario 6 Non-standard UMTS Bandwidth3.6.1 Scenario Description3.6.2 Solution Purpose3.6.3 Solution Description3.6.4 Implementation

4 List of Features Involved in the Solution5 Acronyms and Abbreviations6 Reference Documents

umts u900 and u850 network solution guide(ran16.0_02)

Documents

huawei trademarks

huawei proprietary

huawei industrial basebantian

thepurchase scope

usage scope

solution overview

overall solution

application scenarios