诺基亚异频负载均衡报告-20160315-AMLE

诺基亚异频负载均衡报告诺基亚异频负载均衡报告诺基亚北京项目LTE优化组2016年3月目录1. 背景 32. 负载均衡功能测试 42.1 异厂家负载均衡功能测试 42.1.1 参数设置 42.1.2 实验效果 62.2 同厂家同站双载波负载均衡功能测试 82.1.3 参数设置 92.1.4 实验效果 103. 遗留问题 13targetLoadNonGbrDlDLnon-GBRresourcetargetloadLNCEL75755%8%targetLoadPdcchPDCCHtargetloadLNCEL503%50%5%iFLBHighLoadGBRDLInter-FrequencyLoadBalancingDLGBRHighLoadLNCEL60606060iFLBHighLoadNonGBRDLInter-FrequencyLoadBalancingDLnon-GBRHighLoadLNCEL85858%10%iFLBHighLoadPdcchInter-FreqLoadBalancingPDCCHHighLoadLNCEL805%80%7%nomNumPrbNonGbrNominalnumberofPRBsforloadbalancingLNCEL1101010iFLBBearCheckTimerInter-FrequencyLoadBalancingQCI1BearerCheckTimerLNCEL12121212prohibitLBHOTimerProhibitLoadBasedHandoverTimerLNCEL10101010iFLBRetryTimerInterFreqLoadBalRetryTimerLNCEL60606060开启featureLTE1841:Inter-FrequencyLoadEqualization（开启AMLE）MOClassParameterNameParameterFullName默认值修改值3月1日

16:39:00LNBTSactIfHoEnableinterFrequencyhandoverenabledenabledLNBTSactAmleActivateactivemodeloadequalizationfalseTRUELNBTSactInterFreqLBActivationofinterfrequencyloadbalancing(iFLB)falseTRUELNBTSprohibitLBHOTimerProhibitLoadbasedhandovertimer1010LNRELamleAllowedActivemodeloadequalizationallowedfalseTRUELNRELremoveAllowedRemoveallowedtrueFALSELNHOIFthresholdRsrpIFLBFilterInter-freqloadbalthresholdforRSRPtargetfilter-98-95LNHOIFthresholdRsrqIFLBFilterInter-freqloadbalthresholdforRSRQtargetfilter-12不设置LNCELcellResourceSharingModeCellresourcesharingmodenonenoneLNCELthreshold2InterFreqThresholdth2interFreqforRSRP-100-90LNCELthreshold2aThresholdth2aforRSRP-96-87LNCELiFLBRetryTimerInterFreqLoadBalRetryTimer6060sLNCELiFLBHighLoadGBRDLInter-frequencyloadbalancingGBRhighloadDL6060%LNCELiFLBHighLoadNonGBRDLInter-frequencyloadbalancingnon-GBRhighloadDL858%LNCELiFLBHighLoadPdcchInter-frequencyloadbalancingPDCCHhighload8080%LNCELiFLBBearCheckTimerInter-frequencyloadbalancingQCI1Bearerchecktimer1212sLNCELcellCapClassCellcapacityclassvalue100100LNCELtargetLoadGbrDlDLGBRresourcetargetload5050%LNCELtargetLoadNonGbrDlDLnon-GBRresourcetargetload755%LNCELtargetLoadPdcchPDCCHtargetload5050%LNCELmlbEicicOperModeModeforcalculatingtheCACinloadbal.andeICICallUesallUesLNCELnomNumPrbNonGbrNominalnumberofPRBsforloadbalancing110LNCELulStaticCacStaticCACforuplink100100LNCELulCacSelectionUplinkCACsourceselectionulReflectDlCaculReflectDlCacLNCEL-AMLEPRamlePrIdamlePrId0/10LNCEL-AMLEPRdeltaCacDifferenceinCACofsourceandtargetcells205%LNCEL-AMLEPRcacHeadroomHeadroominCAC00LNCEL-AMLEPRtargetCarrierFreqTargetcarrierfrequency39148LNCEL-AMLEPRmaxCacThresholdThresholdformaximumCAC100100实验效果开启featureLTE1531:Inter-frequencyLoadBalancingExtension（开启iFLB）开启featureLTE1531后，指标统计Nokia76309-1和HW499769-132基于iFLB的LBHO全部成功，信令显示触发原因为reduce-load-in-serving-cell，符合预期。SDATETIMEENB_CELLHO_LB_ATTHO_LB_SUCCHIGH_CELL_LOAD_LB20160226100076309-1111820160226101576309-1442520160226103076309-1773220160226104576309-128289120160226110076309-1331620160226111576309-1111120160226113076309-1332520160301094576309_1332820160301100076309_1434321520160301101576309_1886220160301103076309_100420160301104576309_1111420160301110076309_1872220160301111576309_1514414620160301113076309_120168020160301114576309_116157120160301120076309_1211020160301121576309_1524017020160301123076309_1773320160301124576309_120176220160301130076309_12113开启featureLTE1841:Inter-FrequencyLoadEqualization（开启AMLE）开启featureLTE1841后，指标统计LBHO有尝试计数，信令显示触发原因也为reduce-load-in-serving-cell，但同时也开启了iFLB，为了区分LB基于具体feature，抓取wireshark，Nokia小区有发起资源请求，但未出现厂家间资源信息交互。SDATETIMEENB_CELLHO_LB_ATTHO_LB_SUCCHIGH_CELL_LOAD_LB20160301160076309_100020160301161576309_100020160301163076309_1473615620160301164576309_1554622920160301170076309_100020160301171576309_100076309向HW小区发起的资源请求消息类型为CompositeAvailableCapacityPeriodic，周期性综合可用容量。IE/GroupNamePresenceRangeIEtypeandreferenceSemanticsdescriptionCriticalityAssignedCriticalityReportCharacteristicsOBITSTRINGEachpositioninthebitmapindicatesmeasurementobjecttheeNB2

isrequestedtoreport.YESreject(SIZE(32))FirstBit=PRBPeriodic,SecondBit=

TNLloadIndPeriodic,ThirdBit=HWLoadIndPeriodic,FourthBit=CompositeAvailableCapacityPeriodic.Bits5to32shallbeignoredbytheeNB2同厂家同站双载波负载均衡功能测试为进行Nokia同站内各载波间负载均衡的实验，选定实验点为76413朝阳机场2号航站楼出发厅南侧NLM，该站点两个载波业务量和用户数分布不均。参数设置开启featureLTE1841:Inter-FrequencyLoadEqualization（开启AMLE）MOClassParameterNameParameterFullName默认值修改值

3.210：00LNBTSactIfHoEnableinterFrequencyhandoverenabledenabledLNBTSactAmleActivateactivemodeloadequalizationFALSETRUELNBTSactInterFreqLBActivationofinterfrequencyloadbalancing(iFLB)FALSEFALSELNBTSprohibitLBHOTimerProhibitLoadbasedhandovertimer1010LNRELamleAllowedActivemodeloadequalizationallowedFALSETRUELNRELremoveAllowedRemoveallowedTRUEFALSELNHOIFthresholdRsrpIFLBFilterInter-freqloadbalthresholdforRSRPtargetfilter-98-90LNHOIFthresholdRsrqIFLBFilterInter-freqloadbalthresholdforRSRQtargetfilter-12不设置LNCELcellResourceSharingModeCellresourcesharingmodenonenoneLNCELthreshold2InterFreqThresholdth2interFreqforRSRP-100-90LNCELthreshold2aThresholdth2aforRSRP-96-87LNCELiFLBRetryTimerInterFreqLoadBalRetryTimer6060sLNCELiFLBHighLoadGBRDLInter-frequencyloadbalancingGBRhighloadDL6060%LNCELiFLBHighLoadNonGBRDLInter-frequencyloadbalancingnon-GBRhighloadDL858%LNCELiFLBHighLoadPdcchInter-frequencyloadbalancingPDCCHhighload8080%LNCELiFLBBearCheckTimerInter-frequencyloadbalancingQCI1Bearerchecktimer1212sLNCELcellCapClassCellcapacityclassvalue100100LNCELtargetLoadGbrDlDLGBRresourcetargetload5050%LNCELtargetLoadNonGbrDlDLnon-GBRresourcetargetload755%LNCELtargetLoadPdcchPDCCHtargetload5050%LNCELmlbEicicOperModeModeforcalculatingtheCACinloadbal.andeICICallUesallUesLNCELnomNumPrbNonGbrNominalnumberofPRBsforloadbalancing110LNCELulStaticCacStaticCACforuplink100100LNCELulCacSelectionUplinkCACsourceselectionulReflectDlCaculReflectDlCacLNCEL-AMLEPRamlePrIdamlePrId0/10LNCEL-AMLEPRdeltaCacDifferenceinCACofsourceandtargetcells205%LNCEL-AMLEPRcacHeadroomHeadroominCAC00LNCEL-AMLEPRtargetCarrierFreqTargetcarrierfrequency39148LNCEL-AMLEPRmaxCacThresholdThresholdformaximumCAC100100实验效果修改后76413两载波用户数实现均衡，1小区用户数下降，PRB利用率下降，同时11小区用户数增加，PRB利用率有所上升。由于是站内切换无明显log显示LBHO，但切换事件均为LB切换的所用事件A4，符合预期。SDATETIMEENB_CELLHO_LB_ATTHO_LB_SUCCHIGH_CELL_LOAD_LB20160302080076413_100020160302081576413_100020160302083076413_100020160302084576413_100020160302090076413_100020160302091576413_100020160302093076413_100020160302094576413_100020160302100076413_1138137020160302101576413_1120118020160302103076413_1172169020160302104576413_1237237020160302110076413_1243240020160302111576413_1264262020160302113076413_1210205020160302114576413_1207203020160302120076413_1146142020160302121576413_1140139020160302123076413_1156154020160302124576413_1230228020160302130076413_1197196020160302131576413_1219211020160302133076413_1216215020160302134576413_1222218020160302140076413_1168165020160302141576413_1171168020160302143076413_1125122020160302144576413_1162161020160302150076413_1217214020160302151576413_1233231020160302153076413_1251245020160302154576413_1251240020160302160076413_1258251020160302161576413_1285281020160302163076413_1214213020160302164576413_1293289020160302170076413_12522480空闲态负载均衡参数设置参数名参数全称级别默认值3月15日

14：213月15日

12:163月15日

9：16actIdleLBActivationofidlemodeloadbalancing(IdleLB)LNBTSFALSETRUETRUETRUEidleLBCapThreshIdlemodeloadbalancingcapacitythresholdLNCEL100100100100idleLBPercentageOfUesPercentageofUEforidlemodeloadbalancingLNCEL070%70%90%idleLBCelResWeightCellreselectionweightfactoridlemodeloadbalancingLNCEL空空空空idleLBEutCelResWeightEUTRAcarrierweightfactoridlemodeloadbalancingIRFIM空1007070实验效果2个载波用户数相当，实现均衡。PERIOD_START_TIMEenb_lcr76413-1

CELL_LOAD_ACT_UE_MAXenb_lcr76413-11

CELL_LOAD_ACT_UE_MAX2016/3/159:0076413-14176413-11382016/3/159:1576413-14376413-11392016/3/159:3076413-13876413-11352016/3/159:4576413-14076413-11372016/3/1510:0076413-14276413-