Camping Strategy Switch for Mass Event(RAN16.0_01)

WCDMA RAN

Camping Strategy Switch for MassEvent Feature 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.

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Website: http://www.huawei.com

Email: [email protected]

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

i

http://www.huawei.commailto:[email protected]

Contents

1 About This Document..................................................................................................................11.1 Scope..............................................................................................................................................................................11.2 Intended Audience..........................................................................................................................................................11.3 Change History...............................................................................................................................................................11.4 Differences Between Base Station Types.......................................................................................................................2

2 Overview.........................................................................................................................................32.1 Definition........................................................................................................................................................................42.2 Benefits...........................................................................................................................................................................4

3 Technical Description...................................................................................................................5

4 Related Features.............................................................................................................................7

5 Network Impact.............................................................................................................................8

6 Engineering Guidelines...............................................................................................................96.1 When to Use Camping Strategy Switch for Mass Event................................................................................................96.2 Network Planning...........................................................................................................................................................96.3 Deployment....................................................................................................................................................................96.3.1 Requirements...............................................................................................................................................................96.3.2 Data Preparation........................................................................................................................................................106.3.3 Activation (Using MML Commands).......................................................................................................................126.3.4 Activation (Using the CME)......................................................................................................................................136.3.5 Activation Observation..............................................................................................................................................136.3.6 Reconfiguration.........................................................................................................................................................146.3.7 Deactivation (Using MML Commands)....................................................................................................................146.3.8 Deactivation (Using the CME)..................................................................................................................................146.4 Performance Monitoring...............................................................................................................................................156.5 Parameter Optimization................................................................................................................................................156.6 Troubleshooting............................................................................................................................................................15

7 Parameters.....................................................................................................................................16

8 Counters........................................................................................................................................44

9 Glossary.........................................................................................................................................45

WCDMA RANCamping Strategy Switch for Mass Event Feature ParameterDescription Contents


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10 Reference Documents...............................................................................................................46

WCDMA RANCamping Strategy Switch for Mass Event Feature ParameterDescription Contents


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1 About This Document1.1 Scope

This document describes WRFD-151203 Camping Strategy Switch for Mass Event, includingits technical principles, related features, network impact, and engineering guidelines.

This document applies to the following NE types.

NE Type NE Model

RNC BSC6900, BSC6910

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

Micro BTS3803E, BTS3902E

LampSite DBS3900 LampSite

1.2 Intended AudienceThis document is intended for personnel who:

l Need to understand the features described herein

l Work with Huawei products

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

WCDMA RANCamping Strategy Switch for Mass Event Feature ParameterDescription 1 About This Document


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l Feature changeChanges in features of a specific product version

l Editorial changeChanges in wording or addition of information that was not described in the earlier version

RAN16.0 01 (2014-04-30)This issue does not include any changes.

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(Y/N/NA)

Supported by Micro(Y/N/NA)

LampSite

BSC6900

BSC6910

BTS3803E

BTS3902E

WRFD-151203

CampingStrategySwitchfor MassEvent

Y Y Y Y Y Y

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.

The features described in this document are implemented in the same way on macro, micro, andLampSite base stations.

WCDMA RANCamping Strategy Switch for Mass Event Feature ParameterDescription 1 About This Document


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2 OverviewSpecial events, such as large gatherings, concerts, and sporting events, often result in suddenand dramatic increases in traffic. On multi-carrier networks with preferred camping, suchincreases in traffic usually lead to access congestion in preferentially camped cells and causekey performance indicators (KPIs) to deteriorate. To alleviate access congestion and increasethe radio resource control (RRC) connection setup success rate, the Camping Strategy Switchfor Mass Event feature changes the network camping strategy from preferred camping to randomcamping.

WCDMA RANCamping Strategy Switch for Mass Event Feature ParameterDescription 2 Overview


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2.1 DefinitionPreferred Camping Preferred camping is often used together with the service steering function.When this strategy is used: A UE in idle mode preferentially camps on a cell deliveringcontiguous coverage. This cell then becomes the UE's preferentially camped cell. When the UEinitiates an R99 service, the RNC instructs the UE to process the service in its preferentiallycamped cell. When the UE initiates a High Speed Packet Access (HSPA) service, the RNCinstructs the UE to move to an inter-frequency co-coverage neighboring cell through the directretry or redirection procedure to process the service. This strategy preferentially guaranteesspeech quality for R99 voice services.

Random Camping When random camping is used, UEs in idle mode randomly camp on cells.This strategy maximizes capacity for multi-carrier networks.

2.2 BenefitsDuring special events, this feature balances loads across cells using different frequencies. Inaddition, this feature increases the following items:

l Number of equivalent Erlangs of all the services in the CS domainl Number of High Speed Packet Access (HSPA) bytes transmitted from the Radio Link

Control (RLC) layerl RRC connection setup success rate by 3% to 15% for preferentially camped cells

WCDMA RANCamping Strategy Switch for Mass Event Feature ParameterDescription 2 Overview


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3 Technical DescriptionWhen the cell-level license switch (FuncSwitch2(BSC6900,BSC6910)CAMPING_STRATEGY_SWITCH) of the Camping Strategy Switch for Mass Event featureare turned on in a cell (for example, cell 1), the RNC performs the following operations:

1. Filters out cell 1's blind-handover-supporting neighboring cells under the same RNC basedon the value of the BlindHoFlag(BSC6900,BSC6910) parameter.

2. Determines whether cell 1 is a preferentially camped cell, compared with its inter-frequencyblind-handover-supporting neighboring cells.

l The following description uses cell 2 as an example, which is an inter-frequency blind-handover-supporting neighboring cell of cell 1. If any of the following conditions is met,the RNC determines that cell 1 is a preferentially camped cell, compared with cell 2:

When the QualMeas(BSC6900,BSC6910) parameter is set to CPICH_RSCP, the offset(indicated by IdleQoffset1sn(BSC6900,BSC6910)) of cell 2 from cell 1 is less than orequal to the value of the PrefCampRscpThd(BSC6900,BSC6910) parameter.

When the QualMeas(BSC6900,BSC6910) parameter is set to CPICH_ECNO, the offset(indicated by IdleQoffset2sn(BSC6900,BSC6910)) of cell 2 from cell 1 is less than orequal to the value of the PrefCampEcNoThd(BSC6900,BSC6910) parameter.

l The value of the IdleCellBarred(BSC6900,BSC6910) parameter is NOT_BARRED forcell 1 and BARRED for cell 2.

3. Periodically checks whether cell 1 meets both of the following conditions within 15minutes:

l The number of RRC connections established is greater than or equal to theRrcConnSumThd(BSC6900,BSC6910) parameter value multiplied by 3.

l The ratio of rejected RRC connection setup requests due to power and code resourcecongestion to the total RRC connection setup requests is greater than or equal to the valueof the RrcRejByCongRatioThd(BSC6900,BSC6910) parameter.

If any of the preceding conditions is not met, the RNC does not trigger the Camping StrategySwitch for Mass Event feature.

If both of the preceding conditions are met, the RNC determines that there is a sudden sharpincrease in cell 1's traffic and triggers the feature in cell 1. The RNC then includes the followingparameter settings into system information blocks (SIBs) to change the camping strategy appliedto cells 1 and 2 from preferred camping to random camping.

WCDMA RANCamping Strategy Switch for Mass Event Feature ParameterDescription 3 Technical Description


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For both cells 1 and 2:

l SIB3: The IdleSintersearch(BSC6900,BSC6910) parameter in the ADDUCELLSELRESEL command uses the value of the same parameter in the SETUCAMPSTRATFORMASS.

l SIB3: The SsearchHCS(BSC6900,BSC6910) parameter in the ADD UCELLHCScommand uses the value of the same parameter in the SET UCAMPSTRATFORMASScommand.

l SIB11: The IdleQoffset1sn(BSC6900,BSC6910) and IdleQoffset2sn(BSC6900,BSC6910) parameters in the ADD UINTERFREQNCELL command use thevalue 0.

For cell 2 only:

l SIB3: The IdleCellBarred(BSC6900,BSC6910) parameter in the ADDUCELLACCESSSTRICT command uses the value NOT_BARRED. And theIsAccessClass0Barred(BSC6900,BSC6910)~IsAccessClass15Barred(BSC6900,BSC6910) parameters use the value NOT_BARRED if they were set toBARRED.

After the RNC includes the preceding parameter settings into SIB3, the Cell camp policyswitching state in heavy traffic domain value is Optimizing for cell 1 and Correlatedoptimizing for cell 2. The domain values are obtained by running the DSP UCELLLCHKcommand.

If cell 1 does not support blind handovers from cell 2 (BlindHoFlag(BSC6900,BSC6910) is setto False), the RNC uses the RetryOptSwitch to control whether to configure cell 1 as the targetcell for directed retries or redirections from cell 2. If cell 1 supports blind handovers from cell2 (BlindHoFlag(BSC6900,BSC6910) is set to True), the RetryOptSwitch does not take effect.

This feature can cause a maximum of seven inter-frequency blind-handover-supportingneighboring cells of cell 1 to enter the Correlated optimizing state. In addition, each of theseneighboring cells can enter this state due to a maximum of three preferentially camped cells.

NOTE

l The RNC only includes the preceding parameter settings into SIB3, and the configuration data of cells1 and 2 actually remains unchanged.

l The RNC will not include the preceding parameter settings into SIB3 for cell 2 if theCELLADMINSTATE(BSC6900,BSC6910) parameter of cell 2 is set to HIGHBLKPREP,MEDIUMBLKPREP, LOWBLKPREP, or BLOCK, or if the DSSFlag(BSC6900,BSC6910)parameter of cell 2 is set to Configured.

l When this feature is taking effect in a cell, the function of inter-frequency directed retry decision (DRD)for service steering and the function of redirection during the RRC connection release phase fail. Whenthis feature stops taking effect, these functions resume.

4. Restores settings for the preceding parameters and includes restored parameter settings intoSIBs at 4:40 every day to resume the original camping strategy for cells 1 and 2.

WCDMA RANCamping Strategy Switch for Mass Event Feature ParameterDescription 3 Technical Description


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4 Related FeaturesPrerequisite Features

None

Mutually Exclusive FeaturesNone

Impacted FeaturesWhen the Camping Strategy Switch for Mass Event feature is taking effect, the WRFD-020105Potential User Control feature stops taking effect. When the Camping Strategy Switch for MassEvent feature stops taking effect, the Potential User Control feature resumes. For details aboutthe Potential User Control feature, see Load Control Feature Parameter Description.

WCDMA RANCamping Strategy Switch for Mass Event Feature ParameterDescription 4 Related Features


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5 Network ImpactSystem Capacity

During special events, this feature increases the following items:

l Number of equivalent Erlangs of all the services in the CS domainl Number of HSPA bytes transmitted from the RLC layer

Network PerformanceIf there is a sharp increase in a network's traffic mainly due to downlink power resourcecongestion, this feature increases the RRC connection setup success rate by 3% to 15% and theradio access bearer (RAB) setup success rate for preferentially camped cells. The reason is asfollows:

After the congestion occurs, UEs continuously attempt to access the network and as a resultpower consumption increases. After the network camping strategy changes to random camping,the number of continuous access attempts decreases and therefore power consumption isreduced.

If the sharp increase is mainly caused by SF code or (equivalent number of users) ENU resourceinsufficiency, this feature cannot greatly increase the RRC connection setup success rate. Thisis because the number of SF codes and the ENU do not increase after the network campingstrategy changes to random camping.

This feature cannot provide noticeable gains if the capability of a preferentially camped cell isdifferent from that of the corresponding non-preferentially camped cell, for example, apreferentially camped cell supports only R99 services but the corresponding non-preferentiallycamped cell supports HSPA services. The reason is as follows:

The two cells support different types of services. In this case, UE and service allocation betweenthe two cells cannot be balanced.

WCDMA RANCamping Strategy Switch for Mass Event Feature ParameterDescription 5 Network Impact


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6 Engineering Guidelines6.1 When to Use Camping Strategy Switch for Mass Event

Use this feature on multi-carrier networks that use preferred camping.

6.2 Network PlanningDo not use this feature on networks where the following conditions are met:

l Macro and micro cells coexist.l Some micro cells use the same frequency as some macro cells.

For example, cell 1 (a macro cell) is a preferentially camped cell, compared with cell 2 (anothermacro cell). In the coverage area of cell 1, a micro cell is deployed. After the network campingstrategy is changed from preferred camping to random camping, blind-handover-based directedretries from cell 2 to cell 1 will fail, resulting in a reduced directed retry success rate.

6.3 Deployment

6.3.1 Requirementsl License

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

WCDMA RANCamping Strategy Switch for Mass Event Feature ParameterDescription 6 Engineering Guidelines


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FeatureID

FeatureName

LicenseControlItem

LicenseControlName

NE LicenseAllocation forMultipleOperators

SalesUnit

WRFD-151203

CampingStrategySwitch forMassEvent

LQW1CSSMERES

CampingStrategySwitch forMassEvent(perCell)

BSC6900BSC6910

Licensecontrolitems thatcannot beconfiguredbased onoperators

perCell

6.3.2 Data PreparationThe following table lists the data to prepare before deploying the Camping Strategy Switch forMass Event feature.

Parameter Name Parameter ID Setting Notes Data Source

RSCP Threshold forPreferred Camping

PrefCampRscpThd(BSC6900,BSC6910)

- Network planning

Ec/No Threshold forPreferred Camping

PrefCampEcNoThd(BSC6900,BSC6910)

- Network planning

Threshold for RRCConnection SetupRequest

RrcConnSumThd(BSC6900,BSC6910)

- Network planning

Threshold for RejectRRC Request Perc IfCongestion

RrcRejByCongRa-tioThd(BSC6900,BSC6910)

- Network planning



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Threshold forTrigger Inte-FreqCell Reselect in Idle

IdleSintersearch(BSC6900,BSC6910)

If you run the SETUCAMPSTRATFORMASS commandto change the valueof this parameter, thenew value cannottake effectimmediately. Toenable the new valueto take effectimmediately, run theMODUCELLSELRESEL command. Oncethe value of thisparameter ischanged, the RNCupdates SIB3.

Network planning

Threshold for Inter/Intra-Freq HCS CellReselect

SsearchHCS(BSC6900,BSC6910)

If you run the SETUCAMPSTRATFORMASS commandto change the valueof this parameter, thenew value cannottake effectimmediately. Toenable the new valueto take effectimmediately, run theMOD UCELLHCScommand. Once thevalue of thisparameter ischanged, the RNCupdates SIB3.

Network planning



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Retry OptimizationSwitch

RetryOptSwitch This switch controlswhether to configurea preferentiallycamped cell (cell 1)as the target cell fordirected retries orredirections from thecorresponding non-preferentiallycamped cell (cell 2)when cell 1 does notsupport blindhandovers from cell2.Turning on thisswitch on a networkwhere UEspreferentially campon high-frequency-band cells instead oflow-frequency-bandcells allows blind-handover-baseddirected retries fromlow-frequency-bandcells to high-frequency-bandcells. This results in areduced directedretry success rate.Therefore, do notturn on this switch onsuch a network.

Network planning

6.3.3 Activation (Using MML Commands)Step 1 Run the RNC MML command MOD UCELLALGOSWITCH and select the

CAMPING_STRATEGY_SWITCH check box under the NBMLdcAlgoSwitch(BSC6900,BSC6910) parameter to activate this feature for a preferentially camped cell.

Step 2 Run the SET UCAMPSTRATFORMASS and set the RSCP Threshold for PreferredCamping, Ec/No Threshold for Preferred Camping, Threshold for RRC Connection SetupRequest, Threshold for Reject RRC Request Perc If Congestion, Threshold for TriggerInte-Freq Cell Reselect in Idle, Threshold for Inter/Intra-Freq HCS Cell Reselect, andRetry Optimization Switch parameters for the cell.



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Step 3 Run the RNC MML command ADD UCELLLICENSE and select theCAMPING_STRATEGY_SWITCH check box under the FuncSwitch2(BSC6900,BSC6910) parameter to activate the feature license for the cell.

----End

MML Command Examples//Turning on the function switch controlling the Camping Strategy Switch for Mass Event featureMOD UCELLALGOSWITCH: CellId=1, NBMLdcAlgoSwitch=CAMPING_STRATEGY_SWITCH-1;//Configuring feature parametersSET UCAMPSTRATFORMASS: PrefCampRscpThd=-10, PrefCampEcNoThd=-10, RrcConnSumThd=600, RrcRejByCongRatioThd=2, IdleSintersearch=6, SsearchHCS=10, RetryOptSwitch=ON;//Turning on the feature license switchADD/MOD UCELLLICENSE: CellId=1, FuncSwitch2= CAMPING_STRATEGY_SWITCH-1;

6.3.4 Activation (Using the CME)

6.3.5 Activation ObservationPerform the following operations on the U2000 to query the operating logs of the CampingStrategy Switch for Mass Event feature:

Choose SON > SON Log.

On the SON Log window, query and synchronize the operating logs of the feature, includingfeature activation time, effect time, and involved NEs, as shown in Figure 6-1.

Figure 6-1 Operating logs of the feature



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6.3.6 ReconfigurationRun the SET UCAMPSTRATFORMASS command to increase or decrease the values of theThreshold for RRC Connection Setup Request and Threshold for Reject RRC Request Perc IfCongestion parameters to control the probability that this feature is triggered.

6.3.7 Deactivation (Using MML Commands)Step 1 Run the RNC MML command MOD UCELLALGOSWITCH and deselect the

CAMPING_STRATEGY_SWITCH check box under the NBMLdcAlgoSwitch(BSC6900,BSC6910) parameter to deactivate the Camping Strategy Switch for Mass Eventfeature.

Step 2 Alternatively, run the RNC MML command MOD UCELLLICENSE and deselect theCAMPING_STRATEGY_SWITCH check box under the FuncSwitch2(BSC6900,BSC6910) parameter to deactivate the feature license.

----End

MML Command Examples//Turning off the function switch controlling the Camping Strategy Switch for Mass Event featureMOD UCELLALGOSWITCH: CellId=1, NBMLdcAlgoSwitch=CAMPING_STRATEGY_SWITCH-0;//Turning off the feature license switchMOD UCELLLICENSE: CellId=1, FuncSwitch2= CAMPING_STRATEGY_SWITCH-0;

6.3.8 Deactivation (Using the CME)NOTE

When configuring the Camping Strategy Switch for Mass Event feature on the CME, perform a singleconfiguration first, and then perform a batch modification if required. Configure the parameters of a singleobject before a batch modification. Perform a batch modification before logging out of the parameter settinginterface.

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

Set parameters on the CME according to the operation sequence in Table 6-1. For instructionson how to perform the CME single configuration, see CME Single Configuration OperationGuide.

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.



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Table 6-1 Configuring the parameter on the CME

SN MO NE ParameterName

ParameterID

Configurable in CMEBatchModification Center

1 UCELLALGOSWITCH

RNC Switch forCell LoadControl

NBMLdcAlgoSwitch(BSC6900,BSC6910)

Yes

6.4 Performance MonitoringRun the DSP UCELLCHK command to query the value of the Cell camp policy switching statein heavy traffic parameter for a cell. This parameter has the following values: Unstarted: indicatesthat the Camping Strategy Switch for Mass Event feature is not currently triggered in the cell.Optimizing: indicates that the cell is converted from a preferentially camped cell into a randomlycamped cell. Combined optimizing: indicates that the cell is converted from a non-preferentiallycamped cell into a randomly camped cell. This value applies to inter-frequency blind-handover-supporting neighboring cells of preferentially camped cells.

Alternatively, query the operating logs of the feature on the U2000.

6.5 Parameter OptimizationRun the SET UCAMPSTRATFORMASS command to increase or decrease the values of theRrcConnSumThd(BSC6900,BSC6910) and RrcRejByCongRatioThd(BSC6900,BSC6910)parameters to control the probability that this feature is triggered.

Run the SET UCAMPSTRATFORMASS command and change the values of theIdleSintersearch(BSC6900,BSC6910) and SsearchHCS(BSC6900,BSC6910) parameters. Thenew values will not take effect immediately. To enable the new values to take effect immediately,run the MOD UCELLSELRESEL command for the IdleSintersearch(BSC6900,BSC6910)parameter and the MOD UCELLHCS command for the SsearchHCS(BSC6900,BSC6910)parameter.

6.6 TroubleshootingNone



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7 ParametersTable 7-1 Parameter description

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

FuncSwitch2

BSC6900

ADDUCELLLICENSEMODUCELLLICENSE

WRFD-151202WRFD-151203WRFD-150236WRFD-151201WRFD-150232WRFD-150246

FACHPool


LoadBasedDynamicAdjustment ofPCPICH

Adaptive RACH

MultibandDirectRetryBasedon UELocation

ServiceSteeringandLoadSharing

Meaning: 1.BASED_UE_LOC_DRD_SWITCH:Whether the function of UE location-based multi-frequency-band DRD is available. When the conditionsof path loss are met, cell edge UEs in a high-frequency-band cell perform the DRD procedure towards a low-frequency-band cell, or cell center UEs in a low-frequency-band cell perform the DRD proceduretowards a high-frequency-band cell. The function of UElocation-based multi-frequency-band DRD takes effectonly when this parameter is turned on and the"BasedUELocDRDSwitch" parameter in the "SETUDRD" or "ADD UCELLDRD" command is alsoturned on. 2. LOAD_BASED_PCPICH_PWR_ADJ:Whether the license function switch for Load BasedDynamic Adjustment of PCPICH is enabled. 3.ADAPTIVE_RACH_SWITCH(License Switch forAdaptive RACH): Cell-level license switch for theadaptive RACH feature. When this switch is turned on,the adaptive RACH is activated. When this switch isturned off, this feature is deactivated. 4.CAMPING_STRATEGY_SWITCH(Switch for CampPolicy Switching in Heavy Traffic): Whether to enablethe camping policy switching function when traffic isheavy. This is a license switch for the function. Whenthe switch is turned on, the camping policy switchingfunction is enabled if traffic is heavy in the entirenetwork. Then, the target cell is no longer a preferredcamping cell for the UE in question, but a randomcamping cell. 5. FACH_POOL_SWITCH: Functionswitch for the FACH Pool feature. When this switch is

WCDMA RANCamping Strategy Switch for Mass Event Feature ParameterDescription 7 Parameters


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Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

inCELL_FACHState

turned on, the FACH Pool feature is activated and theP2F-triggered redirection algorithm is also activated.Note that P2F indicates a CELL_PCH/URA_PCH-to-CELL_FACH state transition. 6.FACH_TRAFF_STEER_AND_LOAD_SHARE_SWITCH: Function switch for the Service Steering and LoadSharing in CELL_FACH State feature. When thisswitch is turned on, this feature is activated. This featureincorporates the P2F-triggered redirection algorithm forreal-time services, the P2F-triggered redirectionalgorithm for non-real-time services, and the algorithmof P2F-triggered redirection in case of P2D failures forreal-time services.GUI Value Range:BASED_UE_LOC_DRD_SWITCH,LOAD_BASED_PCPICH_PWR_ADJ,ADAPTIVE_RACH_SWITCH,CAMPING_STRATEGY_SWITCH,FACH_POOL_SWITCH,FACH_TRAFF_STEER_AND_LOAD_SHARE_SWITCHUnit: NoneActual Value Range:BASED_UE_LOC_DRD_SWITCH,LOAD_BASED_PCPICH_PWR_ADJ,ADAPTIVE_RACH_SWITCH,CAMPING_STRATEGY_SWITCH,FACH_POOL_SWITCH,FACH_TRAFF_STEER_AND_LOAD_SHARE_SWITCHDefault Value: BASED_UE_LOC_DRD_SWITCH:0,LOAD_BASED_PCPICH_PWR_ADJ:0,ADAPTIVE_RACH_SWITCH:0,CAMPING_STRATEGY_SWITCH:0,FACH_POOL_SWITCH:0,FACH_TRAFF_STEER_AND_LOAD_SHARE_SWITCH:0



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Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

FuncSwitch2

BSC6910

ADDUCELLLICENSEMODUCELLLICENSE


FACHPoolCampingStrategySwitchfor MassEventLoadBasedDynamicAdjustment ofPCPICHAdaptive RACHMultibandDirectRetryBasedon UELocationServiceSteeringandLoadSharinginCELL_FACHState

Meaning: 1.BASED_UE_LOC_DRD_SWITCH:Whether the function of UE location-based multi-frequency-band DRD is available. When the conditionsof path loss are met, cell edge UEs in a high-frequency-band cell perform the DRD procedure towards a low-frequency-band cell, or cell center UEs in a low-frequency-band cell perform the DRD proceduretowards a high-frequency-band cell. The function of UElocation-based multi-frequency-band DRD takes effectonly when this parameter is turned on and the"BasedUELocDRDSwitch" parameter in the "SETUDRD" or "ADD UCELLDRD" command is alsoturned on. 2. LOAD_BASED_PCPICH_PWR_ADJ:Whether the license function switch for Load BasedDynamic Adjustment of PCPICH is enabled. 3.ADAPTIVE_RACH_SWITCH(License Switch forAdaptive RACH): Cell-level license switch for theadaptive RACH feature. When this switch is turned on,the adaptive RACH is activated. When this switch isturned off, this feature is deactivated. 4.CAMPING_STRATEGY_SWITCH(Switch for CampPolicy Switching in Heavy Traffic): Whether to enablethe camping policy switching function when traffic isheavy. This is a license switch for the function. Whenthe switch is turned on, the camping policy switchingfunction is enabled if traffic is heavy in the entirenetwork. Then, the target cell is no longer a preferredcamping cell for the UE in question, but a randomcamping cell. 5. FACH_POOL_SWITCH: Functionswitch for the FACH Pool feature. When this switch isturned on, the FACH Pool feature is activated and theP2F-triggered redirection algorithm is also activated.Note that P2F indicates a CELL_PCH/URA_PCH-to-CELL_FACH state transition. 6.FACH_TRAFF_STEER_AND_LOAD_SHARE_SWITCH: Function switch for the Service Steering and LoadSharing in CELL_FACH State feature. When thisswitch is turned on, this feature is activated. This featureincorporates the P2F-triggered redirection algorithm forreal-time services, the P2F-triggered redirectionalgorithm for non-real-time services, and the algorithmof P2F-triggered redirection in case of P2D failures forreal-time services.GUI Value Range:BASED_UE_LOC_DRD_SWITCH,LOAD_BASED_PCPICH_PWR_ADJ,



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Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

ADAPTIVE_RACH_SWITCH,CAMPING_STRATEGY_SWITCH,FACH_POOL_SWITCH,FACH_TRAFF_STEER_AND_LOAD_SHARE_SWITCHUnit: NoneActual Value Range:BASED_UE_LOC_DRD_SWITCH,LOAD_BASED_PCPICH_PWR_ADJ,ADAPTIVE_RACH_SWITCH,CAMPING_STRATEGY_SWITCH,FACH_POOL_SWITCH,FACH_TRAFF_STEER_AND_LOAD_SHARE_SWITCHDefault Value: BASED_UE_LOC_DRD_SWITCH:0,LOAD_BASED_PCPICH_PWR_ADJ:0,ADAPTIVE_RACH_SWITCH:0,CAMPING_STRATEGY_SWITCH:0,FACH_POOL_SWITCH:0,FACH_TRAFF_STEER_AND_LOAD_SHARE_SWITCH:0



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Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

BlindHoFlag

BSC6900

ADDUINTERFREQNCELLMODUINTERFREQNCELL


InterFrequency LoadBalanceHCS(HierarchicalCellStructure)Multi-CarrierSwitchoffBasedon QoSIntraSystemDirectRetryMulti-CarrierSwitchoffBasedonTrafficLoadDRDIntroductionPackage

Meaning: Whether a neighboring cell is a candidate cellfor blind handovers. Value FALSE indicates that theneighboring cell is not considered as a candidate cell forblind handovers. Therefore, blind handovers to this cellcannot be triggered. Value TRUE indicates that the cellis considered as a candidate cell for blind handovers andblind handovers to this cell can be triggered.GUI Value Range: FALSE, TRUEUnit: NoneActual Value Range: FALSE, TRUEDefault Value: False



20

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

BlindHoFlag

BSC6910



InterFrequency LoadBalanceHCS(HierarchicalCellStructure)Multi-CarrierSwitchoffBasedon QoSIntraSystemDirectRetryMulti-CarrierSwitchoffBasedonTrafficLoadDRDIntroductionPackage

Meaning: Whether a neighboring cell is a candidate cellfor blind handovers. Value FALSE indicates that theneighboring cell is not considered as a candidate cell forblind handovers. Therefore, blind handovers to this cellcannot be triggered. Value TRUE indicates that the cellis considered as a candidate cell for blind handovers andblind handovers to this cell can be triggered.GUI Value Range: FALSE, TRUEUnit: NoneActual Value Range: FALSE, TRUEDefault Value: False

QualMeas

BSC6900

ADDUCELLSELRESELMODUCELLSELRESEL

WRFD-010801WRFD-010802

IntraRNCCellUpdateInterRNCCellUpdate

Meaning: Measurement quantity of cell selection andreselection. For details about this parameter, see 3GPPTS 25.304.GUI Value Range: CPICH_ECNO(CPICH Ec/N0),CPICH_RSCP(CPICH RSCP)Unit: NoneActual Value Range: CPICH_ECNO, CPICH_RSCPDefault Value: CPICH_ECNO(CPICH Ec/N0)



21

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

QualMeas

BSC6910


WRFD-010801WRFD-010802


Meaning: Measurement quantity of cell selection andreselection. For details about this parameter, see 3GPPTS 25.304.GUI Value Range: CPICH_ECNO(CPICH Ec/N0),CPICH_RSCP(CPICH RSCP)Unit: NoneActual Value Range: CPICH_ECNO, CPICH_RSCPDefault Value: CPICH_ECNO(CPICH Ec/N0)

IdleQoffset1sn

BSC6900


WRFD-010801WRFD-010802WRFD-150232WRFD-01061112

IntraRNCCellUpdateInterRNCCellUpdateMultibandDirectRetryBasedon UELocationHSDPADRD

Meaning: Offset of the measured CPICH RSCP used forcell reselection when the UE is in idle mode. In a cellreselection procedure, the RNC subtracts this offsetfrom the measured CPICH RSCP of a neighboring celland then ranks all neighboring cells. For details, see3GPP TS 25.304.GUI Value Range: -50~50Unit: dBActual Value Range: -50~50Default Value: 0

IdleQoffset1sn

BSC6910




Meaning: Offset of the measured CPICH RSCP used forcell reselection when the UE is in idle mode. In a cellreselection procedure, the RNC subtracts this offsetfrom the measured CPICH RSCP of a neighboring celland then ranks all neighboring cells. For details, see3GPP TS 25.304.GUI Value Range: -50~50Unit: dBActual Value Range: -50~50Default Value: 0



22

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

PrefCampRscpThd

BSC6900

SETUCAMPSTRATFORMASS

WRFD-151203


Meaning: Received signal code power (RSCP)threshold for preferred camping. When the value of"IdleQoffset1sn" in the "ADD UINTERFREQNCELL"command is less than or equal to this threshold, thecurrent neighboring cell is a preferentially camped cellcompared with the cell being configured. For example,when you configure an inter-frequency neighboring cell(cell B) for cell A, cell B is a preferentially camped cellcompared with cell A after you set related parametersas follows: "IdleQoffset1sn" is set to -12."PrefCampRscpThd" is set to -10.GUI Value Range: -50~-1Unit: dBActual Value Range: -50~-1Default Value: -10

PrefCampRscpThd

BSC6910


WRFD-151203


Meaning: Received signal code power (RSCP)threshold for preferred camping. When the value of"IdleQoffset1sn" in the "ADD UINTERFREQNCELL"command is less than or equal to this threshold, thecurrent neighboring cell is a preferentially camped cellcompared with the cell being configured. For example,when you configure an inter-frequency neighboring cell(cell B) for cell A, cell B is a preferentially camped cellcompared with cell A after you set related parametersas follows: "IdleQoffset1sn" is set to -12."PrefCampRscpThd" is set to -10.GUI Value Range: -50~-1Unit: dBActual Value Range: -50~-1Default Value: -10



23

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

IdleQoffset2sn

BSC6900




Meaning: Offset of the measured CPICH Ec/No usedfor cell reselection when the UE is in idle mode. In acell reselection procedure, the RNC subtracts this offsetfrom the measured CPICH Ec/No of a neighboring celland then ranks all neighboring cells.GUI Value Range: -50~50Unit: dBActual Value Range: -50~50Default Value: 0

IdleQoffset2sn

BSC6910




Meaning: Offset of the measured CPICH Ec/No usedfor cell reselection when the UE is in idle mode. In acell reselection procedure, the RNC subtracts this offsetfrom the measured CPICH Ec/No of a neighboring celland then ranks all neighboring cells.GUI Value Range: -50~50Unit: dBActual Value Range: -50~50Default Value: 0



24

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

PrefCampEcNoThd

BSC6900


WRFD-151203


Meaning: Received energy per chip divided by thepower density in the band (Ec/No) threshold forpreferred camping. When the value of "IdleQoffset2sn"in the "ADD UINTERFREQNCELL" command is lessthan or equal to this threshold, the current neighboringcell is a preferentially camped cell compared with thecell being configured. For example, when you configurean inter-frequency neighboring cell (cell B) for cell A,cell B is a preferentially camped cell compared with cellA after you set related parameters as follows:"IdleQoffset2sn" is set to -12. "PrefCampEcNoThd" isset to -10.GUI Value Range: -50~-1Unit: dBActual Value Range: -50~-1Default Value: -10

PrefCampEcNoThd

BSC6910


WRFD-151203


Meaning: Received energy per chip divided by thepower density in the band (Ec/No) threshold forpreferred camping. When the value of "IdleQoffset2sn"in the "ADD UINTERFREQNCELL" command is lessthan or equal to this threshold, the current neighboringcell is a preferentially camped cell compared with thecell being configured. For example, when you configurean inter-frequency neighboring cell (cell B) for cell A,cell B is a preferentially camped cell compared with cellA after you set related parameters as follows:"IdleQoffset2sn" is set to -12. "PrefCampEcNoThd" isset to -10.GUI Value Range: -50~-1Unit: dBActual Value Range: -50~-1Default Value: -10

IdleCellBarred

BSC6900

ADDUCELLACCESSSTRICTMODUCELLACCESSSTRICT

WRFD-021103

AccessClassRestriction

Meaning: Whether a UE in idle mode is allowed toaccess the cell. When this parameter is set to BARRED,it indicates that the UE in idle mode is barred to select/reselect the cell even in the case of emergency calls. Fordetails about this parameter, see 3GPP TS 25.331.

GUI Value Range: BARRED, NOT_BARRED

Unit: None

Actual Value Range: BARRED, NOT_BARRED

Default Value: None



25

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

IdleCellBarred

BSC6910


WRFD-021103


Meaning: Whether a UE in idle mode is allowed toaccess the cell. When this parameter is set to BARRED,it indicates that the UE in idle mode is barred to select/reselect the cell even in the case of emergency calls. Fordetails about this parameter, see 3GPP TS 25.331.


Unit: None


Default Value: None

RrcConnSumThd

BSC6900


WRFD-151203


Meaning: Threshold for the number of RRC connectionsetup requests within 5 min in a cell. This threshold isone condition for determining whether there is a suddenand dramatic increase in a cell's traffic. To determinethat a cell experiences a sudden and dramatic increasein traffic, this threshold must be reached or exceeded.GUI Value Range: 1~65535Unit: NoneActual Value Range: 1~65535Default Value: 600

RrcConnSumThd

BSC6910


WRFD-151203


Meaning: Threshold for the number of RRC connectionsetup requests within 5 min in a cell. This threshold isone condition for determining whether there is a suddenand dramatic increase in a cell's traffic. To determinethat a cell experiences a sudden and dramatic increasein traffic, this threshold must be reached or exceeded.GUI Value Range: 1~65535Unit: NoneActual Value Range: 1~65535Default Value: 600

RrcRejByCongRatioThd

BSC6900


WRFD-151203


Meaning: Threshold for the number of RRC connectionsetup requests rejected due to Uu resource congestion.This threshold is one condition for determining whetherthere is a sudden and dramatic increase in a cell's traffic.To determine that a cell experiences a sudden anddramatic increase in traffic, this threshold must bereached or exceeded.GUI Value Range: 0~100Unit: %Actual Value Range: 0~100Default Value: 2



26

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

RrcRejByCongRatioThd

BSC6910


WRFD-151203


Meaning: Threshold for the number of RRC connectionsetup requests rejected due to Uu resource congestion.This threshold is one condition for determining whetherthere is a sudden and dramatic increase in a cell's traffic.To determine that a cell experiences a sudden anddramatic increase in traffic, this threshold must bereached or exceeded.GUI Value Range: 0~100Unit: %Actual Value Range: 0~100Default Value: 2

IdleSintersearch

BSC6900


WRFD-010801WRFD-010802


Meaning: Threshold for inter-frequency cellmeasurements in idle mode in SIB3. When the quality(CPICH Ec/No measured by the UE) of the serving cellis lower than this threshold plus the value of "Qqualmin"for the cell, inter-frequency cell measurements arestarted. When this parameter is set to 127, inter-frequency cell measurements are performed. For detailsabout this parameter, see 3GPP TS 25.304.GUI Value Range: -16~10;127Unit: 2dBActual Value Range: -32~20, 127Default Value: 4

IdleSintersearch

BSC6910


WRFD-010801WRFD-010802


Meaning: Threshold for inter-frequency cellmeasurements in idle mode in SIB3. When the quality(CPICH Ec/No measured by the UE) of the serving cellis lower than this threshold plus the value of "Qqualmin"for the cell, inter-frequency cell measurements arestarted. When this parameter is set to 127, inter-frequency cell measurements are performed. For detailsabout this parameter, see 3GPP TS 25.304.GUI Value Range: -16~10;127Unit: 2dBActual Value Range: -32~20, 127Default Value: 4



27

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

SsearchHCS

BSC6900

ADDUCELLHCSMODUCELLHCS

WRFD-010801WRFD-021200WRFD-010802

IntraRNCCellUpdateHCS(HierarchicalCellStructure)InterRNCCellUpdate

Meaning: Intra-system HCS cell reselection startthreshold. When the value of the "Srxlev" parameter forthe serving cell is less than the value of this parameter,the UE starts the intra-frequency and inter-frequencymeasurements to reselect a better cell. The valuemapping of these two parameters is (-53:-105;-52:-103; ..., 45:91). For details about this parameter,see 3GPP TS 25.304.GUI Value Range: -53~45Unit: 2dBActual Value Range: -105~91Default Value: 0

SsearchHCS

BSC6910

ADDUCELLHCSMODUCELLHCS

WRFD-010801WRFD-021200WRFD-010802

IntraRNCCellUpdateHCS(HierarchicalCellStructure)InterRNCCellUpdate

Meaning: Intra-system HCS cell reselection startthreshold. When the value of the "Srxlev" parameter forthe serving cell is less than the value of this parameter,the UE starts the intra-frequency and inter-frequencymeasurements to reselect a better cell. The valuemapping of these two parameters is (-53:-105;-52:-103; ..., 45:91). For details about this parameter,see 3GPP TS 25.304.GUI Value Range: -53~45Unit: 2dBActual Value Range: -105~91Default Value: 0

IsAccessClass0Barred

BSC6900


WRFD-021103


Meaning: Indicating whether the UE allocated withAccess Class 0 can be allowed to initiate access to theradio network. The UE judges whether it belongs to thisaccess class based on the SIM/USIM. For details aboutthis parameter, see 3GPP TS 25.331.


Unit: None


Default Value: NOT_BARRED



28

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description


BSC6910


WRFD-021103




Unit: None




BSC6900


WRFD-021103




Unit: None




BSC6910


WRFD-021103




Unit: None



RetryOptSwitch

BSC6910


WRFD-151203


Meaning: NoneGUI Value Range: OFF, ONUnit: NoneActual Value Range: OFF, ONDefault Value: OFF

DSSFlag

BSC6900

ADDUCELLSETUPMODUCELLSETUP

None None Meaning: Whether a cell supports Dynamic SpectrumSharing (DSS).GUI Value Range: TRUE, FALSEUnit: NoneActual Value Range: TRUE , FALSEDefault Value: False



29

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

DSSFlag

BSC6910

ADDUCELLSETUPMODUCELLSETUP

None None Meaning: Whether a cell supports Dynamic SpectrumSharing (DSS).GUI Value Range: TRUE, FALSEUnit: NoneActual Value Range: TRUE , FALSEDefault Value: False



30

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

NBMLdcAlgoSwitch

BSC6900

ADDUCELLALGOSWITCHMODUCELLALGOSWITCH

WRFD-151203

WRFD-020106

WRFD-150231

WRFD-150219

WRFD-150216

WRFD-150217

WRFD-150215

WRFD-01061003

WRFD-020102

WRFD-140223

WRFD-150236

WRFD-020101

WRFD-140226

WRFD-020107

WRFD-020104

WRFD-020105

WRFD-020126

WRFD-01061202

WRFD-020129


LoadReshuffling

RIMBasedUMTSTargetCellSelection forLTE

Coverage BasedPSRedirection fromUMTSto LTE

LoadBasedPSRedirection fromUMTSto LTE

LoadBasedPSHandover fromUMTSto LTE

SRVCCfromLTE toUMTSwith PSHandover

Meaning: Whether to enable the algorithms related tocell load control. Selecting a switch enables thecorresponding algorithm and clearing a switch disablesthe corresponding algorithm. 1.INTRA_FREQUENCY_LDB: Whether to enable thecell breathing algorithm. This algorithm adjusts P-CPICH transmit power of a cell based on the downlinkTCP load to achieve load balancing between intra-frequency cells. This algorithm automatically becomesinvalid when the load-based dynamic P-CPICHtransmit power adjustment algorithm (controlled by theDLLOAD_BASED_PCPICH_PWR_ADJ_SWITCHswitch) takes effect. 2. PUC: Whether to enable thePotential User Control (PUC) algorithm. This algorithmadjusts cell selection and reselection parameters basedon the cell load to enable UEs to reselect lightly loadedcells. 3. UL_UU_OLC: Whether to enable the uplinkoverload control (OLC) algorithm. When the uplinkpower is overloaded in a cell, this algorithm alleviatesthe uplink load by using quick transport format (TF)restriction, distributing best effort (BE) service tocommon channels, or releasing UEs. 4. DL_UU_OLC:Whether to enable the downlink OLC algorithm. Whenthe downlink power is overloaded in a cell, thisalgorithm alleviates the downlink load by using quickTF restriction, distributing BE services to commonchannels, releasing UEs, or reconfiguring the maximumtransmit power of FACHs. 5. UL_UU_LDR: Whetherto enable the uplink load reshuffling (LDR) algorithm.When the uplink load is heavy in a cell, this algorithmalleviates the uplink load by using load-based inter-frequency handovers, BE service rate reduction,uncontrollable real-time service QoS renegotiation,load-based CS/PS inter-RAT handovers, and AMRservice rate reduction. 6. DL_UU_LDR: Whether toenable the downlink LDR algorithm. When thedownlink load is heavy in a cell, this algorithmalleviates the downlink load by using load-based inter-frequency handovers, BE service rate reduction,uncontrollable real-time service QoS renegotiation,load-based CS/PS inter-RAT handovers, AMR servicerate reduction, and MBMS power restriction. 7.OLC_EVENTMEAS: Whether to enable OLC eventmeasurement. 8. CELL_CODE_LDR: Whether toenable cell code reshuffling algorithm. In the event ofcode resource overuse, this algorithm alleviates the coderesource overuse by using BE service rate reduction,



31

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

WRFD-010626

WRFD-010627

WRFD-020103

WRFD-010660

WRFD-010661

WRFD-010662

WRFD-010663

WRFD-010665

WRFD-140102

WRFD-01066004

WRFD-01061606

WRFD-01066002

WRFD-01066003

WRFD-01066001

WRFD-01061605

WRFD-150220

WRFD-01061601

HSDPAAdmissionControl

LoadMeasurement

MOCNCellResourceDemarcation


AdmissionControl

FastReturnfromUMTSto LTE

OverloadControl

IntraFrequency LoadBalance

PotentialUserControl

MobilityBetweenUMTSand LTEPhase 1

code tree reshuffling, and load-based inter-frequencyhandovers. 9. CELL_CREDIT_LDR: Whether toenable the cell credit reshuffling algorithm. In the eventof cell credit overuse, this algorithm alleviates the creditoveruse by using load-based inter-frequency handovers,BE service rate reduction, uncontrollable real-timeservice QoS renegotiation, and load-based CS/PS inter-RAT handovers. 10.UL_INTRA_FREQUENCY_ULB: Whether to enableRTWP-based intra-frequency load balancing algorithm.This algorithm adjusts P-CPICH transmit power of acell based on the RTWP load to achieve load balancingbetween intra-frequency cells. This algorithmautomatically becomes invalid when the load-baseddynamic P-CPICH transmit power adjustmentalgorithm (controlled by theDLLOAD_BASED_PCPICH_PWR_ADJ_SWITCHswitch) takes effect. 11. UL_UU_CLB: Whether toenable the uplink load-based CLB algorithm. Thisalgorithm determines whether a cell enters the CLBstate by the uplink load on the air interface. If a cell isin the CLB state, measurement-based inter-frequencyhandovers are triggered periodically to achieve loadbalancing between inter-frequency cells. 12.DL_UU_CLB: Whether to enable the downlink load-based CLB algorithm. This algorithm determineswhether a cell enters the CLB state by the downlink loadon the air interface. If a cell is in the CLB state,measurement-based inter-frequency handovers aretriggered periodically to achieve load balancingbetween inter-frequency cells. 13. CELL_CODE_CLB:Whether to enable code resource-based CLB algorithm.This algorithm determines whether a cell enters the CLBstate by the code resource usage. If a cell is in the CLBstate, measurement-based inter-frequency handoversare triggered periodically to achieve load balancingbetween inter-frequency cells. 14.CELL_CREDIT_CLB: Whether to enable credit-basedCLB algorithm. This algorithm determines whether acell enters the CLB state by the credit resource usage.If a cell is in the CLB state, measurement-based inter-frequency handovers are triggered periodically toachieve load balancing between inter-frequency cells.15.DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH:Whether to enable downlink load-based dynamicprimary common pilot channel (P-CPICH) power



32

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

WRFD-01061603WRFD-01061602WRFD-140217WRFD-01061604WRFD-010616WRFD-01061608WRFD-140218

HSUPAAdmissionControlPSServiceRedirection fromUMTSto LTEMBMSFLC(FrequencyLayerConvergence)/FLD(FrequencyLayerDispersion)FACHTransmissionSharingforMBMSInterFrequency LoadBalanceMBMSPhase 2MBMSover IurDynamic PowerEstimation forMTCHMSCHScheduling

adjustment algorithm. This algorithm adjusts the P-CPICH transmit power by the downlink non-HSPApower load to reduce the downlink non-HSPA powerload. If this algorithm takes effect, other enabledalgorithms for intra-frequency load balancing (based onTCP or RTWP) automatically become invalid. 16.ADAPTIVE_RACH: Function switch for the adaptiveRACH feature. When this switch is turned on, thisfeature is activated. In this case, the RNC adjusts therandom access parameters based on the random accessstate and on the uplink power load of the target cell.When this switch is turned off, this feature isdeactivated. 17. ACK_PRACH_PREAM_MEAS:Whether to measure the number of acknowledgedPRACH preambles. When this switch is turned on, theRNC measures the number of acknowledged PRACHpreambles. When this switch is turned off, the RNC doesnot measure the number of acknowledged PRACHpreambles. 18. CAMPING_STRATEGY_SWITCH:Whether to enable the camping policy switchingfunction when traffic is heavy. This is a function switchfor the function. When the switch is turned on, thecamping policy switching function is enabled if trafficis heavy in the entire network. Then, the target cell is nolonger a preferred camping cell for the UE in question,but a random camping cell.

GUI Value Range: INTRA_FREQUENCY_LDB,PUC, UL_UU_LDR, DL_UU_LDR, UL_UU_OLC,DL_UU_OLC, OLC_EVENTMEAS,CELL_CODE_LDR, CELL_CREDIT_LDR,UL_INTRA_FREQUENCY_ULB, UL_UU_CLB,DL_UU_CLB, CELL_CODE_CLB,CELL_CREDIT_CLB,DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH,ADAPTIVE_RACH,ACK_PRACH_PREAM_MEAS,CAMPING_STRATEGY_SWITCH

Unit: None

Actual Value Range: INTRA_FREQUENCY_LDB,PUC, UL_UU_LDR, DL_UU_LDR, UL_UU_OLC,DL_UU_OLC, OLC_EVENTMEAS,CELL_CODE_LDR, CELL_CREDIT_LDR,UL_INTRA_FREQUENCY_ULB, UL_UU_CLB,DL_UU_CLB, CELL_CODE_CLB,CELL_CREDIT_CLB,DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH,



33

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

MBMSChannelAudience RatingStatisticsCSFallbackGuarantee forLTEEmergencyCallsInter-FrequencyNeighboring CellSelection forMBMSPTPUsersStreamingServiceonMBMSMBMSP2P overHSDPAMBMSAdmissionEnhancementMBMSEnhancedBroadcast ModeMBMSTransport

ADAPTIVE_RACH,ACK_PRACH_PREAM_MEAS,CAMPING_STRATEGY_SWITCHDefault Value: INTRA_FREQUENCY_LDB:0,PUC:0,UL_UU_LDR:0,DL_UU_LDR:0,UL_UU_OLC:0,DL_UU_OLC:0,OLC_EVENTMEAS:0,CELL_CODE_LDR:0,CELL_CREDIT_LDR:0,UL_INTRA_FREQUENCY_ULB:0,UL_UU_CLB:0,DL_UU_CLB:0,CELL_CODE_CLB:0,CELL_CREDIT_CLB:0,DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH:0,ADAPTIVE_RACH:0,ACK_PRACH_PREAM_MEAS:0,CAMPING_STRATEGY_SWITCH:0



34

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

ResourceManagementCoverage BasedPSHandover fromUMTSto LTEMBMSBroadcast ModeMBMSLoadControlMBMSAdmissionControlInter-Frequency LoadBalancing BasedonConfigurableLoadThresholdMBMSSoft/SelectiveCombiningMBMSIntroductionPackage16/32/64/128Kbp



35

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

sChannelRate onMBMSService-BasedPSHandover fromUMTSto LTE



36

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

NBMLdcAlgoSwitch

BSC6910

ADDUCELLALGOSWITCHMODUCELLALGOSWITCH

WRFD-151203

WRFD-020106

WRFD-150231

WRFD-150219

WRFD-150216

WRFD-150217

WRFD-150215

WRFD-01061003

WRFD-020102

WRFD-140223

WRFD-150236

WRFD-020101

WRFD-140226

WRFD-020107

WRFD-020104

WRFD-020105

WRFD-020126

WRFD-01061202

WRFD-020129


LoadReshuffling

RIMBasedUMTSTargetCellSelection forLTE

Coverage BasedPSRedirection fromUMTSto LTE

LoadBasedPSRedirection fromUMTSto LTE

LoadBasedPSHandover fromUMTSto LTE

SRVCCfromLTE toUMTSwith PSHandover

Meaning: Whether to enable the algorithms related tocell load control. Selecting a switch enables thecorresponding algorithm and clearing a switch disablesthe corresponding algorithm. 1.INTRA_FREQUENCY_LDB: Whether to enable thecell breathing algorithm. This algorithm adjusts P-CPICH transmit power of a cell based on the downlinkTCP load to achieve load balancing between intra-frequency cells. This algorithm automatically becomesinvalid when the load-based dynamic P-CPICHtransmit power adjustment algorithm (controlled by theDLLOAD_BASED_PCPICH_PWR_ADJ_SWITCHswitch) takes effect. 2. PUC: Whether to enable thePotential User Control (PUC) algorithm. This algorithmadjusts cell selection and reselection parameters basedon the cell load to enable UEs to reselect lightly loadedcells. 3. UL_UU_OLC: Whether to enable the uplinkoverload control (OLC) algorithm. When the uplinkpower is overloaded in a cell, this algorithm alleviatesthe uplink load by using quick transport format (TF)restriction, distributing best effort (BE) service tocommon channels, or releasing UEs. 4. DL_UU_OLC:Whether to enable the downlink OLC algorithm. Whenthe downlink power is overloaded in a cell, thisalgorithm alleviates the downlink load by using quickTF restriction, distributing BE services to commonchannels, releasing UEs, or reconfiguring the maximumtransmit power of FACHs. 5. UL_UU_LDR: Whetherto enable the uplink load reshuffling (LDR) algorithm.When the uplink load is heavy in a cell, this algorithmalleviates the uplink load by using load-based inter-frequency handovers, BE service rate reduction,uncontrollable real-time service QoS renegotiation,load-based CS/PS inter-RAT handovers, and AMRservice rate reduction. 6. DL_UU_LDR: Whether toenable the downlink LDR algorithm. When thedownlink load is heavy in a cell, this algorithmalleviates the downlink load by using load-based inter-frequency handovers, BE service rate reduction,uncontrollable real-time service QoS renegotiation,load-based CS/PS inter-RAT handovers, AMR servicerate reduction, and MBMS power restriction. 7.OLC_EVENTMEAS: Whether to enable OLC eventmeasurement. 8. CELL_CODE_LDR: Whether toenable cell code reshuffling algorithm. In the event ofcode resource overuse, this algorithm alleviates the coderesource overuse by using BE service rate reduction,



37

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

WRFD-010626

WRFD-010627

WRFD-020103

WRFD-010660

WRFD-010661

WRFD-010662

WRFD-010663

WRFD-010665

WRFD-140102

WRFD-01066004

WRFD-01061606

WRFD-01066002

WRFD-01066003

WRFD-01066001

WRFD-01061605

WRFD-150220

WRFD-01061601

HSDPAAdmissionControl

LoadMeasurement

MOCNCellResourceDemarcation


AdmissionControl

FastReturnfromUMTSto LTE

OverloadControl

IntraFrequency LoadBalance

PotentialUserControl

MobilityBetweenUMTSand LTEPhase 1

code tree reshuffling, and load-based inter-frequencyhandovers. 9. CELL_CREDIT_LDR: Whether toenable the cell credit reshuffling algorithm. In the eventof cell credit overuse, this algorithm alleviates the creditoveruse by using load-based inter-frequency handovers,BE service rate reduction, uncontrollable real-timeservice QoS renegotiation, and load-based CS/PS inter-RAT handovers. 10.UL_INTRA_FREQUENCY_ULB: Whether to enableRTWP-based intra-frequency load balancing algorithm.This algorithm adjusts P-CPICH transmit power of acell based on the RTWP load to achieve load balancingbetween intra-frequency cells. This algorithmautomatically becomes invalid when the load-baseddynamic P-CPICH transmit power adjustmentalgorithm (controlled by theDLLOAD_BASED_PCPICH_PWR_ADJ_SWITCHswitch) takes effect. 11. UL_UU_CLB: Whether toenable the uplink load-based CLB algorithm. Thisalgorithm determines whether a cell enters the CLBstate by the uplink load on the air interface. If a cell isin the CLB state, measurement-based inter-frequencyhandovers are triggered periodically to achieve loadbalancing between inter-frequency cells. 12.DL_UU_CLB: Whether to enable the downlink load-based CLB algorithm. This algorithm determineswhether a cell enters the CLB state by the downlink loadon the air interface. If a cell is in the CLB state,measurement-based inter-frequency handovers aretriggered periodically to achieve load balancingbetween inter-frequency cells. 13. CELL_CODE_CLB:Whether to enable code resource-based CLB algorithm.This algorithm determines whether a cell enters the CLBstate by the code resource usage. If a cell is in the CLBstate, measurement-based inter-frequency handoversare triggered periodically to achieve load balancingbetween inter-frequency cells. 14.CELL_CREDIT_CLB: Whether to enable credit-basedCLB algorithm. This algorithm determines whether acell enters the CLB state by the credit resource usage.If a cell is in the CLB state, measurement-based inter-frequency handovers are triggered periodically toachieve load balancing between inter-frequency cells.15.DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH:Whether to enable downlink load-based dynamicprimary common pilot channel (P-CPICH) power



38

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

WRFD-01061603WRFD-01061602WRFD-140217WRFD-01061604WRFD-010616WRFD-01061608WRFD-140218

HSUPAAdmissionControlPSServiceRedirection fromUMTSto LTEMBMSFLC(FrequencyLayerConvergence)/FLD(FrequencyLayerDispersion)FACHTransmissionSharingforMBMSInterFrequency LoadBalanceMBMSPhase 2MBMSover IurDynamic PowerEstimation forMTCHMSCHScheduling

adjustment algorithm. This algorithm adjusts the P-CPICH transmit power by the downlink non-HSPApower load to reduce the downlink non-HSPA powerload. If this algorithm takes effect, other enabledalgorithms for intra-frequency load balancing (based onTCP or RTWP) automatically become invalid. 16.ADAPTIVE_RACH: Function switch for the adaptiveRACH feature. When this switch is turned on, thisfeature is activated. In this case, the RNC adjusts therandom access parameters based on the random accessstate and on the uplink power load of the target cell.When this switch is turned off, this feature isdeactivated. 17. ACK_PRACH_PREAM_MEAS:Whether to measure the number of acknowledgedPRACH preambles. When this switch is turned on, theRNC measures the number of acknowledged PRACHpreambles. When this switch is turned off, the RNC doesnot measure the number of acknowledged PRACHpreambles. 18. CAMPING_STRATEGY_SWITCH:Whether to enable the camping policy switchingfunction when traffic is heavy. This is a function switchfor the function. When the switch is turned on, thecamping policy switching function is enabled if trafficis heavy in the entire network. Then, the target cell is nolonger a preferred camping cell for the UE in question,but a random camping cell.

GUI Value Range: INTRA_FREQUENCY_LDB,PUC, UL_UU_LDR, DL_UU_LDR, UL_UU_OLC,DL_UU_OLC, OLC_EVENTMEAS,CELL_CODE_LDR, CELL_CREDIT_LDR,UL_INTRA_FREQUENCY_ULB, UL_UU_CLB,DL_UU_CLB, CELL_CODE_CLB,CELL_CREDIT_CLB,DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH,ADAPTIVE_RACH,ACK_PRACH_PREAM_MEAS,CAMPING_STRATEGY_SWITCH

Unit: None

Actual Value Range: INTRA_FREQUENCY_LDB,PUC, UL_UU_LDR, DL_UU_LDR, UL_UU_OLC,DL_UU_OLC, OLC_EVENTMEAS,CELL_CODE_LDR, CELL_CREDIT_LDR,UL_INTRA_FREQUENCY_ULB, UL_UU_CLB,DL_UU_CLB, CELL_CODE_CLB,CELL_CREDIT_CLB,DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH,



39

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

MBMSChannelAudience RatingStatisticsCSFallbackGuarantee forLTEEmergencyCallsInter-FrequencyNeighboring CellSelection forMBMSPTPUsersStreamingServiceonMBMSMBMSP2P overHSDPAMBMSAdmissionEnhancementMBMSEnhancedBroadcast ModeMBMSTransport

ADAPTIVE_RACH,ACK_PRACH_PREAM_MEAS,CAMPING_STRATEGY_SWITCHDefault Value: INTRA_FREQUENCY_LDB:0,PUC:0,UL_UU_LDR:0,DL_UU_LDR:0,UL_UU_OLC:0,DL_UU_OLC:0,OLC_EVENTMEAS:0,CELL_CODE_LDR:0,CELL_CREDIT_LDR:0,UL_INTRA_FREQUENCY_ULB:0,UL_UU_CLB:0,DL_UU_CLB:0,CELL_CODE_CLB:0,CELL_CREDIT_CLB:0,DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH:0,ADAPTIVE_RACH:0,ACK_PRACH_PREAM_MEAS:0,CAMPING_STRATEGY_SWITCH:0



40

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

ResourceManagementCoverage BasedPSHandover fromUMTSto LTEMBMSBroadcast ModeMBMSLoadControlMBMSAdmissionControlInter-Frequency LoadBalancing BasedonConfigurableLoadThresholdMBMSSoft/SelectiveCombiningMBMSIntroductionPackage16/32/64/128Kbp



41

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

sChannelRate onMBMSService-BasedPSHandover fromUMTSto LTE

IdleSintersearch

BSC6900


WRFD-151203


Meaning: Threshold for triggering inter-frequency cellreselections for UEs in idle mode when the networkcamping strategy is changed from preferred camping torandom camping. An inter-frequency cell reselection istriggered if a UE detects that the CPICH Ec/No of theserving cell is lower than the sum of this threshold andthe value of "Qqualmin". For details about thisparameter, see 3GPP TS 25.304.GUI Value Range: -16~10Unit: 2dBActual Value Range: -32~20Default Value: 6

IdleSintersearch

BSC6910


WRFD-151203


Meaning: Threshold for triggering inter-frequency cellreselections for UEs in idle mode when the networkcamping strategy is changed from preferred camping torandom camping. An inter-frequency cell reselection istriggered if a UE detects that the CPICH Ec/No of theserving cell is lower than the sum of this threshold andthe value of "Qqualmin". For details about thisparameter, see 3GPP TS 25.304.GUI Value Range: -16~10Unit: 2dBActual Value Range: -32~20Default Value: 6



42

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

SsearchHCS

BSC6900


WRFD-151203


Meaning: Threshold for inter- or intra-frequencyhierarchical cell structure (HCS) cell reselection whenthe network camping strategy is changed from preferredcamping to random camping. If the Srxlev value of theserving cell for a UE is smaller than this parametervalue, the UE starts measuring the signal quality of allthe inter- and intra-frequency HCS cells. The GUI value-53 corresponds to the actual value -105 and the GUIvalue -52 corresponds to the actual value -103,indicating that the difference between every two actualvalues is 2. For details about this parameter, see 3GPPTS 25.304.GUI Value Range: -53~45Unit: 2dBActual Value Range: -105~91Default Value: 10

SsearchHCS

BSC6910


WRFD-151203


Meaning: Threshold for inter- or intra-frequencyhierarchical cell structure (HCS) cell reselection whenthe network camping strategy is changed from preferredcamping to random camping. If the Srxlev value of theserving cell for a UE is smaller than this parametervalue, the UE starts measuring the signal quality of allthe inter- and intra-frequency HCS cells. The GUI value-53 corresponds to the actual value -105 and the GUIvalue -52 corresponds to the actual value -103,indicating that the difference between every two actualvalues is 2. For details about this parameter, see 3GPPTS 25.304.GUI Value Range: -53~45Unit: 2dBActual Value Range: -105~91Default Value: 10



43

8 CountersThere are no specific counters associated with this feature.

WCDMA RANCamping Strategy Switch for Mass Event Feature ParameterDescription 8 Counters


44

9 GlossaryFor the acronyms, abbreviations, terms, and definitions, see the Glossary.

WCDMA RANCamping Strategy Switch for Mass Event Feature ParameterDescription 9 Glossary


45

10 Reference DocumentsNone

WCDMA RANCamping Strategy Switch for Mass Event Feature ParameterDescription 10 Reference Documents


46

Contents1 About This Document1.1 Scope1.2 Intended Audience1.3 Change History1.4 Differences Between Base Station Types

2 Overview2.1 Definition2.2 Benefits

3 Technical Description4 Related Features5 Network Impact6 Engineering Guidelines6.1 When to Use Camping Strategy Switch for Mass Event6.2 Network Planning6.3 Deployment6.3.1 Requirements6.3.2 Data Preparation6.3.3 Activation (Using MML Commands)6.3.4 Activation (Using the CME)6.3.5 Activation Observation6.3.6 Reconfiguration6.3.7 Deactivation (Using MML Commands)6.3.8 Deactivation (Using the CME)

6.4 Performance Monitoring6.5 Parameter Optimization6.6 Troubleshooting

7 Parameters8 Counters9 Glossary10 Reference Documents