1、COPYRIGHT 2012 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. TD-LTE指標(biāo)分指標(biāo)分析及析及工具介紹工具介紹COPYRIGHT 2012 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. 2目錄目錄p指標(biāo)分析方法l KPI指標(biāo)體系l 接入性指標(biāo)l 保持性指標(biāo)l 移動(dòng)性指標(biāo)l 完整性指標(biāo)l 容量指標(biāo)l 接入時(shí)延pNPO工具介紹3COPYRIGHT 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. KPI 指標(biāo)體系

2、指標(biāo)體系 RRC 連接成功率 ERAB建立成功率 無線接通率 無線掉線率 ERAB掉線率 切換成功率 ENB間切換成功率 ENB內(nèi)切換成功率 上/下行BLER 上/下行丟包率 上/下行棄包率 PRB利用率 同時(shí)在線用戶數(shù) 平均RSRP 弱覆蓋小區(qū)占比 接入時(shí)延 上下行吞吐率 重疊覆蓋度 過高基站比4COPYRIGHT 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. RRC連接建立成功率接入性接入性RRC連接建立請(qǐng)求ERAB建立成功RRC連接建立完成ERAB建立請(qǐng)求UEENBMME無線接通率RRC連接建立成功率* E-RAB建立成功

3、率RRC連接建立成功次數(shù)/ RRC連接建立請(qǐng)求次數(shù)E-RAB建立成功率E-RAB建立成功數(shù)/E-RAB建立請(qǐng)求數(shù)監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器ALU計(jì)數(shù)器RRC連接建立成功數(shù)RRC.ConnEstabSucc.SumVS_RRC_cnx_succRRC連接建立請(qǐng)求數(shù)6種接入類型請(qǐng)求之和VS_RRC_cnx_req初始UE上下文ERAB連接建立成功數(shù)SAEB.EstabInitSuccNbr+SAEB.EstabAddSuccNbr + VS.IncomingERABSetupOnIntraLteHO(all screening)VS_ERABs_all_initial_setup_succ + V

4、S_ERABs_all_add_setup_succ初始UE上下文ERAB連接建立請(qǐng)求數(shù)SAEB.EstabInitAttNbr+SAEB.EstabAddAttNbr+VS.IncomingERABToBeSetupOnIntraLteHOVS_ERABs_all_initial_setup_req + VS_ERABs_all_add_setup_req5COPYRIGHT 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. RRC連接失敗原因分析連接失敗原因分析失敗原因失敗子原因監(jiān)控指標(biāo)3GPP定義的計(jì)數(shù)器參考指標(biāo)設(shè)備操作RRC

5、連接建立失敗率（操作原因） RRC connection failure.InterventionOAM告警信息設(shè)備故障S1接口故障RRC連接建立失敗率（S1接口故障）RRC connection failure.S1FaultExternalFailure告警信息故障RRC連接建立失敗率（未收到UE響應(yīng)）RRC connection failure.NoResponseFromUE告警信息網(wǎng)絡(luò)容量達(dá)到最大接入用戶數(shù)RRC連接建立失敗率(達(dá)到最大接入用戶數(shù))RRC connection failure.CACFailureMME過載RRC連接建立失敗率（MME過載）RRC connection

6、 failure.MoDataRRC connection failure.MoDataMoSignallingRRC connection failure.NonEmergencyNonMtAccess告警信息無線環(huán)境問題RRC連接建立失敗率（未收到UE響應(yīng)）RRC connection failure.NoResponseFromUE路測(cè)覆蓋/MR RSRP弱覆蓋小區(qū)終端問題RRC連接建立失敗率（未收到UE響應(yīng)）RRC connection failure.NoResponseFromUE信令采集/基于終端性能統(tǒng)計(jì)的工具如PCMD6COPYRIGHT 2011 ALCATEL-LUCENT

7、 SHANGHAI BELL. ALL RIGHTS RESERVED. RRC連接失敗連接失敗案案例分析例分析后宰門2小區(qū)某日RRC建立成功率突然惡化，導(dǎo)致終端難以接入，失敗全部是VS_RRC_cnx_fail_S1FaultExternalFail counter計(jì)數(shù)：查看該時(shí)段告警發(fā)現(xiàn)存在IK4009021以及IK4007056告警，IK4009021為S1故障告警，IK4007056為由于S1故障導(dǎo)致小區(qū)禁止接入告警。因此該基站S1閃斷造成該時(shí)段RRC連接建立成功率低，經(jīng)搶修，該小區(qū)RRC連接建立成功率隨S1連接恢復(fù)而自動(dòng)恢復(fù)。7COPYRIGHT 2011 ALCATEL-LUCEN

8、T SHANGHAI BELL. ALL RIGHTS RESERVED. ERAB建立失敗原因分析建立失敗原因分析原因分類監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器ALU計(jì)數(shù)器容量ERAB建立失敗（達(dá)到enodeB ERAB最大接入數(shù)）VS.ERABSetupFailed.CACFailureVS_ERABs_proc_setup_fail_CACERAB建立失敗（ERAB context分配失敗）VS.ERABSetupFailed.ERABContextAllocationFailureVS_ERABs_proc_setup_fail_ERABCtxtAllocation基站故障ERAB建立失敗（內(nèi)部故

9、障） VS.ERABSetupFailed.InternalFailureVS_ERABs_proc_setup_fail_InternalFail無線問題ERAB建立失敗（RRC重建） VS.ERABSetupFailed.RRCConnectionReestablishmentVS_ERABs_proc_setup_fail_reestabERAB建立失敗（超時(shí)）VS.ERABSetupFailed.TimeoutVS_ERABs_proc_setup_fail_TimeoutUE其它ERAB建立失敗（與其它流程交互）VS.ERABSetupFailed.Interaction-WithO

10、therProcedureVS_ERABs_proc_setup_fail_InteractionWithOtherProcedure8COPYRIGHT 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. 保持性保持性無線掉線率異常請(qǐng)求釋放上下文數(shù)/初始上下文建立成功次數(shù)*100%ERAB 掉線率E-RAB異常釋放數(shù)量/E-RAB成功建立次數(shù)*100%監(jiān)控指標(biāo)監(jiān)控指標(biāo)ALUALU計(jì)數(shù)器計(jì)數(shù)器 掉話次數(shù)VS.UEContextReleaseRequestSum -(VS.UEContextReleaseRequest.UserInac

11、tivity+ VS.UEContextReleaseRequest.InterRATRedirection+ VS.UEContextReleaseRequest.InterFreqRedirection+ VS.UEContextReleaseRequest.CsFallbackTo1xRTT)初始上下文建立成功次數(shù)VS_UE_ctxt_setup_succ9COPYRIGHT 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. 無線掉話原因分析無線掉話原因分析失敗原因 失敗子原因 監(jiān)控指標(biāo) 3GPP定義的計(jì)數(shù)器 參考指標(biāo) 設(shè)備故

12、障 故障 UE上下文釋放請(qǐng)求（無線鏈路故障） VS.UEContextReleaseRequest.RadioLinkFailure 告警信息 UE上下文釋放請(qǐng)求（內(nèi)部故障） VS.UEContextReleaseRequest.InternalFailure 告警信息 UE上下文釋放請(qǐng)求（ENB重啟S1） VS.LocalUEContextRelease.S1APResetENodeB 告警信息 MME故障 UE上下文釋放請(qǐng)求（MME重啟S1） VS.LocalUEContextRelease.S1APResetMME 告警信息 UE上下文釋放請(qǐng)求（S1故障） VS.LocalUEConte

13、xtRelease.S1FaultExternalFailure 告警信息 容量受限 UE上下文釋放請(qǐng)求（擁塞） VS.UEContextReleaseRequest.Congestion PRB利用率/吞吐率/RAB擁塞率 無線環(huán)境問題 UE上下文釋放請(qǐng)求（無線鏈路故障） VS.UEContextReleaseRequest.RadioLinkFailure 路測(cè)覆蓋/MR RSRP弱覆蓋小區(qū) 終端故障 UE上下文釋放請(qǐng)求（RRC完整性保護(hù)失敗） VS.UEContextReleaseRequest.IntegrityFailure 信令采集/基于終端性能統(tǒng)計(jì)的工具如PCMD 10COPYR

14、IGHT 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. 移動(dòng)類移動(dòng)類切換類型切換過程測(cè)量切換準(zhǔn)備切換執(zhí)行測(cè)量階段：UE根據(jù)下發(fā)的測(cè)量配置消息進(jìn)行相關(guān)測(cè)量，并將測(cè)量上報(bào)給ENB準(zhǔn)備階段：根據(jù)UE上報(bào)的測(cè)量結(jié)果進(jìn)行評(píng)估，準(zhǔn)備切換資源，最終決定是否觸發(fā)切換執(zhí)行階段：ENB根據(jù)切換準(zhǔn)備結(jié)果，控制UE切換到目標(biāo)小區(qū)，由UE完成切換11COPYRIGHT 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. ENB間間S1切換成功率切換成功率(1)指標(biāo)定義ENB間S1切換出成功次數(shù)/

15、 ENB間S1切換出請(qǐng)求次數(shù)切換出準(zhǔn)備成功率與失敗原因監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器ENB間S1切出準(zhǔn)備成功數(shù)VS.OutgoingInterS1HOPreparationSuccessENB間S1切出請(qǐng)求數(shù)VS.OutgoingInterS1HOAttempt原因分類監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器目標(biāo)無資源ENB間S1切出失敗（切換準(zhǔn)備失敗）VS.OutgoingInterS1HOFailure.HOPreparationFailureS1鏈路故障ENB間S1切出失敗（超時(shí)無響應(yīng)）VS.OutgoingInterS1HOFailure.TS1RelocPrepForS1HOTimeout監(jiān)控指標(biāo)3G

16、PP定義計(jì)數(shù)器ENB間S1切入準(zhǔn)備成功數(shù)VS.IncomingInterS1HOPreparationSuccessENB間S1切入請(qǐng)求數(shù)VS.IncomingInterS1HOAttempt切換入準(zhǔn)備成功率與失敗原因12COPYRIGHT 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. ENB間間S1切換成功率切換成功率(2)切換出執(zhí)行成功率與失敗原因監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器ALU計(jì)數(shù)器ENB間S1切出成功數(shù)VS.OutgoingInterS1HOSuccessVS_HO_IrC_S1_succ_srcENB間S1切出準(zhǔn)備成功

17、數(shù)VS.OutgoingInterS1HOPreparationSuccessVS_HO_IrC_S1_succ_prep_src監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器ALU計(jì)數(shù)器切出失敗（在原小區(qū)重建RRC連接）VS.OutgoingInterS1HOFailure.RRCConnectionReestablishmentOnSourceCellVS_HO_IrC_S1_fail_exec_ReestabOnSrc_src_OD切出失敗（計(jì)時(shí)器TS1RelocOverallForS1Handover超時(shí)）VS.OutgoingInterS1HOFailure.TS1RelocOverallForS1HO

18、TimeoutVS_HO_IrC_S1_fail_exec_TimeoutS1_src_OD切出失敗（在其他小區(qū)重建RRC連接）VS.OutgoingInterS1HOFailure.RRCConnectionReestablishmentOnOtherCellVS_HO_IrC_S1_fail_exec_ReestabOnOther_src_OD切換入執(zhí)行成功率與失敗原因監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器ALU計(jì)數(shù)器ENB間S1切入成功數(shù)VS.IncomingInterS1HOSuccessVS_HO_IrC_S1_succ_tgtENB間S1切入準(zhǔn)備成功數(shù)VS.IncomingInterS1HOP

19、reparationSuccessVS_HO_IrC_S1_succ_prep_tgt原因分類監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器ALU計(jì)數(shù)器無線原因切入失敗（在目標(biāo)下其他小區(qū)重建RRC連接）VS.IncomingInterS1HOFailure.RRCConnectionReestablishmentOnOtherCellVS_HO_IrC_S1_fail_exec_ReestabOnOther_tgt_OD切入失敗（在目標(biāo)下切入小區(qū)重建RRC連接）VS.IncomingInterS1HOFailure.RRCConnectionReestablishmentOnTargetCellVS_HO_IrC

20、_S1_fail_exec_ReestabOnTgt_tgt_OD切入失敗（計(jì)時(shí)器InterS1HO timeout超時(shí)）VS.IncomingInterS1HOFailure.InterS1HOTimeoutVS_HO_IrC_S1_fail_exec_TimeoutS1orUE_tgt_OD終端問題切入失敗（完整性算法驗(yàn)證失敗）VS.IncomingInterS1HOFailure.IntegrityFailureVS_HO_IrC_S1_fail_exec_integrity_tgt_OD13COPYRIGHT 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL

21、 RIGHTS RESERVED. ENB間間X2切換成功率（切換成功率（1）指標(biāo)定義ENB間X2切換出成功次數(shù)/ ENB間X2切換出請(qǐng)求次數(shù)切換出準(zhǔn)備成功率與失敗原因監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器ALU計(jì)數(shù)器ENB間X2切出準(zhǔn)備成功數(shù)VS.OutgoingInterX2HOPreparationSuccessVS_HO_IrC_X2_succ_prep_srcENB間X2切出請(qǐng)求數(shù)VS.OutgoingInterX2HOAttemptVS_HO_IrC_X2_req_src監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器ALU計(jì)數(shù)器ENB間X2切出失敗（切換準(zhǔn)備失敗）VS.OutgoingInterX2HOFailu

22、re.HOPreparationFailureOtherVS_HO_IrC_X2_fail_prep_HOPrepFailRcvd_src_ODENB間X2切出失敗（超時(shí)無響應(yīng)）VS.OutgoingInterX2HOFailure.X2PreparationTimeoutVS_HO_IrC_X2_fail_prep_TimeoutX2_src_OD切換入準(zhǔn)備成功率與失敗原因監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器ALU計(jì)數(shù)器ENB間X2切入準(zhǔn)備成功數(shù)VS.OutgoingInterX2HOPreparationSuccessVS_HO_IrC_X2_succ_prep_srcENB間X2切入請(qǐng)求數(shù)VS.O

23、utgoingInterX2HOAttemptVS_HO_IrC_X2_req_src原因分類原因子類監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器設(shè)備操作ENB間X2切入失敗（操作）VS.IncomingInterX2HOFailure.InterventionOAM加密算法不匹配ENB間X2切入失敗（加密算法不匹配）VS.IncomingInterX2HOFailure.SecurityAlgoNotCompatible容量受限接入受限ENB間X2切入失敗（CAC接入失敗）VS.IncomingInterX2HOFailure.CACFailure過載ENB間X2切入失敗（過載）VS.IncomingInte

24、rX2HOFailure.OverloadConditionFailure設(shè)備故障小區(qū)退服ENB間X2切入失敗（小區(qū)退服）VS.IncomingInterX2HOFailure.CellNotAvailableERAB分配失敗ENB間X2切入失敗（ERAB分配失敗）VS.IncomingInterX2HOFailure.ERABContextAllocationFailure內(nèi)部故障ENB間X2切入失敗（內(nèi)部故障）VS.IncomingInterX2HOFailure.InternalFailureS1故障ENB間X2切入失敗（S1故障）VS.IncomingInterX2HOFailure.

25、S1FaultExternalFailure14COPYRIGHT 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. ENB間間X2切換成功率切換成功率(2)切換出執(zhí)行成功率與失敗原因切換入執(zhí)行成功率與失敗原因監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器ALU計(jì)數(shù)器ENB間X2切出成功數(shù)VS.OutgoingInterX2HOSuccessVS_HO_IrC_X2_succ_srcENB間X2切出準(zhǔn)備成功數(shù)VS.OutgoingInterX2HOPreparationSuccessVS_HO_IrC_X2_succ_prep_src原因分類監(jiān)控指標(biāo)3

26、GPP定義計(jì)數(shù)器ALU計(jì)數(shù)器無線原因ENB間X2切出失敗（在原小區(qū)重建RRC連接）VS.OutgoingInterX2HOFailure.RRCConnectionReestablishmentOnSourceCellVS_HO_IrC_X2_fail_exec_ReestabOnSrc_src_ODENB間X2切出失敗（計(jì)時(shí)器超時(shí)）VS.OutgoingInterX2HOFailure.X2ReleaseTimeoutVS_HO_IrC_X2_fail_exec_TimeoutX2_src_ODENB間X2切出失敗（在原下其他小區(qū)重建RRC連接）VS.OutgoingInterX2HOFai

27、lure.RRCConnectionReestablishmentOnOtherCelVS_HO_IrC_X2_fail_exec_ReestabOnOther_src_OD監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器ALU計(jì)數(shù)器ENB間X2切入成功數(shù)VS.IncomingInterX2HOSuccessVS_HO_IrC_X2_succ_tgtENB間X2切入準(zhǔn)備成功數(shù)VS.OutgoingInterX2HOPreparationSuccessVS_HO_IrC_X2_succ_prep_src原因分類監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器ALU計(jì)數(shù)器無線原因ENB間X2切入失敗（在目標(biāo)下其他小區(qū)重建RRC連接）VS.I

28、ncomingInterX2HOFailure.RRCConnectionReestablishmentOnOtherCellVS_HO_IrC_X2_fail_exec_ReestabOnOther_tgt_ODENB間X2切入失敗（在目標(biāo)下切入小區(qū)重建RRC連接）VS.IncomingInterX2HOFailure.RRCConnectionReestablishmentOnTargetCellVS_HO_IrC_X2_fail_exec_ReestabOnTgt_tgt_ODENB間X2切入失敗（計(jì)時(shí)器InterS1HO timeout超時(shí)）VS.IncomingInterX2HOFa

29、ilure.InterHOTimeoutVS_HO_IrC_X2_fail_exec_TimeoutX2orUE_tgt_ODS1鏈路故障ENB間X2切入失敗（路由交換失敗）VS.IncomingInterX2HOFailure.PathSwitchFailureVS_HO_IrC_X2_fail_exec_PathSwitchFail_tgt_ODENB間X2切入失敗（路由交換超時(shí)）VS.IncomingInterX2HOFailure.S1PathSwitchTimeoutVS_HO_IrC_X2_fail_exec_TimeoutS1PathSwitch_tgt_OD終端問題ENB間X2

30、切入失敗（完整性算法驗(yàn)證失敗）VS.IncomingInterX2HOFailure.IntegrityFailureVS_HO_IrC_X2_fail_exec_integrity_tgt_OD15COPYRIGHT 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. ENB內(nèi)切換成功率（內(nèi)切換成功率（1）指標(biāo)定義ENB內(nèi)切換出成功次數(shù)/內(nèi)切換出請(qǐng)求次數(shù)切換出準(zhǔn)備成功率與失敗原因監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器ALU計(jì)數(shù)器ENB內(nèi)切出準(zhǔn)備成功數(shù)HO.IntraOutAtt.SumVS_HO_IrC_succ_prep_srcENB內(nèi)切出請(qǐng)

31、求數(shù)VS.OutgoingIntraHOAttemptVS_HO_IrC_req_src原因分類監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器目標(biāo)小區(qū)接入受限ENB內(nèi)切出準(zhǔn)備失敗（接入受限）VS.IntraHOFailure.CACFailure目標(biāo)小區(qū)無資源ENB內(nèi)切出準(zhǔn)備失敗（過載）VS.IntraHOFailure.OverloadConditionFailure16COPYRIGHT 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. ENB內(nèi)切換成功率（內(nèi)切換成功率（2）切換出執(zhí)行成功率監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器ALU計(jì)數(shù)器ENB內(nèi)切出成功數(shù)V

32、S.IncomingIntraHOSuccessVS_HO_IrC_succ_srcENB內(nèi)切出準(zhǔn)備成功數(shù)HO.IntraOutAtt.SumVS_HO_IrC_succ_prep_src監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器ALU計(jì)數(shù)器ENB內(nèi)切入成功次數(shù)VS.IncomingIntraHOSuccessVS_HO_IrC_succ_tgtENB內(nèi)切入請(qǐng)求次數(shù)VS.IncomingIntraHOAttemptVS_HO_IrC_req_tgt切換入執(zhí)行成功率與失敗原因原因分類監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器ALU計(jì)數(shù)器無線原因ENB內(nèi)切入失敗（在其他小區(qū)重建RRC連接）VS.IntraHOFailure.RR

33、CConnectionReestabOnOtherCellVS_HO_IrC_fail_exec_ReestabOnOther_tgt_ODENB內(nèi)切入失敗（在原小區(qū)重建RRC連接）VS.IntraHOFailure.RRCConnectionReestabOnSourceCellVS_HO_IrC_fail_exec_ReestabOnSrc_tgt_ODENB內(nèi)切入失敗（在原小區(qū)重建RRC連接）VS.IntraHOFailure.RRCConnectionReestabOnTargetCellVS_HO_IrC_fail_exec_ReestabOnTgt_tgt_ODENB內(nèi)切入失敗（計(jì)

34、時(shí)器超時(shí)）VS.IntraHOFailure.TimeoutVS_HO_IrC_fail_exec_TimeoutUE_tgt_OD終端問題ENB內(nèi)切入失敗（完整性算法驗(yàn)證失敗）VS.IntraHOFailure.IntegrityFailureVS_HO_IrC_fail_exec_integrity_tgt_OD設(shè)備故障ENB內(nèi)切入失敗（內(nèi)部故障）VS.IntraHOFailure.InternalFailureVS_HO_IrC_fail_InternalFail_tgt_OD17COPYRIGHT 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHT

35、S RESERVED. 切換成功率優(yōu)化案切換成功率優(yōu)化案例例 準(zhǔn)備失敗準(zhǔn)備失敗小區(qū)名小區(qū)名S 1 切 出切 出請(qǐng)求數(shù)請(qǐng)求數(shù)S1切出準(zhǔn)備切出準(zhǔn)備成功數(shù)成功數(shù)S1切出準(zhǔn)備切出準(zhǔn)備成功率成功率X2切出請(qǐng)切出請(qǐng)求數(shù)求數(shù)X 2 切 出 準(zhǔn)切 出 準(zhǔn)備成功數(shù)備成功數(shù)X 2 切 出 準(zhǔn)切 出 準(zhǔn)備成功率備成功率長(zhǎng)壽大樓長(zhǎng)壽大樓_19600.00%00Nerr長(zhǎng)壽大樓長(zhǎng)壽大樓_237600.00%11100.00%長(zhǎng)壽大樓長(zhǎng)壽大樓_322800.00%22100.00%7月25日8：0010：00時(shí)段長(zhǎng)壽大樓S1切換成功率為0，全部都是準(zhǔn)備失敗：Call trace數(shù)據(jù)：UE占用長(zhǎng)壽大樓_3小區(qū)，上報(bào)PCI

36、為22的測(cè)量報(bào)告，eNB向MME發(fā)送切換請(qǐng)求小區(qū)，目標(biāo)小區(qū)為長(zhǎng)壽移動(dòng)大樓_1，但是都被核心網(wǎng)拒絕，收到handover preparation Failure(cause unknown-targetID)：切換準(zhǔn)備失敗：18COPYRIGHT 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. 切換成功率優(yōu)化案例切換成功率優(yōu)化案例 準(zhǔn)備失敗準(zhǔn)備失敗切換流程圖:查看OMC告警，長(zhǎng)壽大樓和長(zhǎng)壽移動(dòng)大樓的X2和S1連接從7月25日 7:53分開始即不可用，X2accessdown，到23：00恢復(fù)，告警消除，PTN故障解決后指標(biāo)恢復(fù)。19

37、COPYRIGHT 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. 切換成功率優(yōu)化案例切換成功率優(yōu)化案例 執(zhí)行失敗執(zhí)行失敗上海Week25和Week26全網(wǎng)切換成功率較低，不到90，采集數(shù)據(jù)發(fā)現(xiàn)主要是由于靜金鷹，靜南成兩個(gè)站的S1切換失敗次數(shù)較高引起的：小區(qū)名小區(qū)名Week25Week 26S1切換失敗次S1切換請(qǐng)求次S1切換成功率S1切換失敗次S1切換請(qǐng)求次S1切換成功率jingjinyingALH_2687913.92%15418014.44%jingjinyingALH_324931520.95%21831330.35%ji

38、ngnanchengALH_19911916.81%789921.21%jingnanchengALH_211313415.67%14316513.33% 這兩個(gè)站位于卡特和華為邊界，卡特區(qū)域全網(wǎng)小區(qū)統(tǒng)計(jì)的切入失敗次數(shù)都比較低，懷疑是切換到華為的基站存在問題。之后進(jìn)行了測(cè)試和OMC指標(biāo)對(duì)比，測(cè)試切換全部成功，OMC統(tǒng)計(jì)結(jié)果只有2次成功：小區(qū)名小區(qū)名S1切換嘗切換嘗試次試次S1切出成功切出成功次次S1切換成切換成功率功率jingjinyingALH_100NerrjingjinyingALH_200NerrjingjinyingALH_316212.50%20COPYRIGHT 2011 ALC

39、ATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. 切換成功率優(yōu)化案切換成功率優(yōu)化案例例 執(zhí)行失敗執(zhí)行失敗無線側(cè)監(jiān)控S1切換的timer 為tS1RelocOverallForS1Handover，取值范圍1s 到10s。eNodeB發(fā)送S1-AP HANDOVER COMMAND后啟動(dòng)該timer，收到MME下發(fā)的S1AP UE CONTEXT RELEASE COMMAND 消息停止計(jì)時(shí)。MME T3 定時(shí)器默認(rèn)值為 10s ，UE完成切換發(fā)送handover notify后啟動(dòng)，timer超時(shí)后才向源eNodeB下發(fā)拆鏈消息。解決方案： 修改T

40、3時(shí)長(zhǎng)。 eNodeB側(cè)的call trace數(shù)據(jù)顯示14:30:02 MME下發(fā)切換命令，目標(biāo)小區(qū)華為的愛中-HLH-1（ID為：L18527_1），但是無線側(cè)沒有收到核心網(wǎng)下發(fā)的切換成功的拆鏈消息，而是5秒后eNodeB側(cè)timer超時(shí)，eNodeB發(fā)送UE Context Release Request（cause tS1relocoverall -expiry）請(qǐng)求拆鏈，計(jì)為一次切換失敗。直到14:30:12 MME才下發(fā)UE Context Release Command。本次切換測(cè)試結(jié)果11ms UE即完成了切換，但是MME 10秒后才下發(fā)UE Context Release Co

41、mmand（causesuccessful handover ）的拆鏈消息，導(dǎo)致無線側(cè)的S1切換監(jiān)控timer超時(shí)，計(jì)為一次切換失敗。21COPYRIGHT 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. 切換切換優(yōu)化案例優(yōu)化案例 切換測(cè)量切換測(cè)量Counter名名Counter解釋解釋VS_HO_ReportedCell_NotSelectedUnknownCell測(cè)量報(bào)告上報(bào)的小區(qū)PCI未知VS_HO_ReportedCell_NotSelectedMobilityNotEnabled源小區(qū)未開啟切換或者是不允許向目標(biāo)小區(qū)切換

42、VS_HO_ReportedCell_NotSelectedCellDisabled目標(biāo)小區(qū)不可用VS_HO_ReportedCell_all_Selected測(cè)量報(bào)告上報(bào)的小區(qū)為切換目標(biāo)小區(qū)VS_HO_ReportedCell_all_NotSelected_ratio測(cè)量報(bào)告上報(bào)的小區(qū)未作為切換目標(biāo)小區(qū)的比例NPO中相關(guān)的計(jì)數(shù)器和指標(biāo)：7月22日全天統(tǒng)計(jì)結(jié)果比例較高的小區(qū)主要是以下幾個(gè)：小區(qū)名小區(qū)名VS_HO_ReportedCell_NotSelectedUnknownCellVS_HO_ReportedCell_all_NotSelectedVS_HO_ReportedCell_all

43、_NotSelected_ratio長(zhǎng)壽大樓長(zhǎng)壽大樓_1777719.64%長(zhǎng)壽大樓長(zhǎng)壽大樓_2343411.26%長(zhǎng)壽大樓長(zhǎng)壽大樓_321421415.53%長(zhǎng)壽移動(dòng)大樓長(zhǎng)壽移動(dòng)大樓_1343436.17%長(zhǎng)壽移動(dòng)大樓長(zhǎng)壽移動(dòng)大樓_259959933.22%長(zhǎng)壽移動(dòng)大樓長(zhǎng)壽移動(dòng)大樓_3252596.15%22COPYRIGHT 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. 切換優(yōu)化案例切換優(yōu)化案例 切換測(cè)量切換測(cè)量開啟這兩個(gè)站的call trace，統(tǒng)計(jì)測(cè)量報(bào)告上報(bào)的小區(qū)PCI，其中長(zhǎng)壽大樓測(cè)量報(bào)告中上報(bào)的小區(qū)則主要長(zhǎng)壽移動(dòng)大

44、樓_3（PCI為23）：長(zhǎng)壽移動(dòng)大樓_2測(cè)量報(bào)告中的目標(biāo)小區(qū)為普澳寧_1小區(qū)（PCI 304）：檢查系統(tǒng)的參數(shù)文件，室內(nèi)站長(zhǎng)壽移動(dòng)大樓的確是沒有加到普澳寧的切換關(guān)系，宏站長(zhǎng)壽大樓未添加長(zhǎng)壽移動(dòng)大樓_3的鄰區(qū)關(guān)系。補(bǔ)全鄰區(qū)關(guān)系后指標(biāo)恢復(fù)。在開啟ANR功能前，可以通過該指標(biāo)來核查鄰區(qū)關(guān)系是否遺漏。23COPYRIGHT 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. 完整性指標(biāo)完整性指標(biāo)指標(biāo)名監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器ALU計(jì)數(shù)器下行誤塊率（高）BLER10%VS.DLResidualMacBLERWithDynamicSchedul

45、ing.GTThreshold4VS_BLER_DL_Hi下行誤塊率（中高）5%BLER=10%VS.DLResidualMacBLERWithDynamicScheduling.GTThreshold3LEThreshold4VS_BLER_DL_HiMed下行誤塊率（低高）2%BLER=5%VS.DLResidualMacBLERWithDynamicScheduling.GTThreshold2LEThreshold3VS_BLER_DL_HiLo下行誤塊率（中低）1%BLER=2%VS.DLResidualMacBLERWithDynamicScheduling.GTThreshold

46、1LEThreshold2VS_BLER_DL_LoMed下行誤塊率（低）BLER10%VS.ULResidualMacBLERWithDynamicScheduling.GTThreshold4VS_BLER_UL_Hi上行誤塊率（中高）5%BLER=10%VS.ULResidualMacBLERWithDynamicScheduling.GTThreshold3LEThreshold4VS_BLER_UL_HiMed上行誤塊率（低高）2%BLER=5%VS.ULResidualMacBLERWithDynamicScheduling.GTThreshold2LEThreshold3VS_B

47、LER_UL_HiLo上行誤塊率（中低）1%BLER=2%VS.ULResidualMacBLERWithDynamicScheduling.GTThreshold1LEThreshold2VS_BLER_UL_LoMed上行誤塊率（低）BLER=1%VS.ULResidualMacBLERWithDynamicScheduling.LEThreshold1VS_BLER_UL_Lo誤塊率誤塊率取決于無線環(huán)境與誤塊率目標(biāo)參數(shù)。24COPYRIGHT 2011 ALCATEL-LUCENT SHANGHAI BELL. ALL RIGHTS RESERVED. 容量指標(biāo)容量指標(biāo)下行PDCP層流量

48、：監(jiān)控指標(biāo)監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器定義計(jì)數(shù)器ALU計(jì)數(shù)器計(jì)數(shù)器NPO indicator下行下行PDCP層流量（層流量（VoIP業(yè)務(wù)）業(yè)務(wù)）VS.DRBPdcpSduKbytesDL.VoIPVS_ERAB_VoIP_PDCP_SDU_UP_NotFromFwd_kbyte_DLVS_ERABs_all_PDCP_SDU_UP_NotFromFwd_kbyte_DL下行下行PDCP層流量（非層流量（非VoIP的的GBR業(yè)務(wù)）業(yè)務(wù)）VS.DRBPdcpSduKbytesDL.OtherGBRVS_ERABs_GBR_WithoutVoIP_PDCP_SDU_UP_NotFromFwd_kbyt

49、e_DL下行下行PDCP層流量（非層流量（非GBR業(yè)業(yè)務(wù)）務(wù)）VS.DRBPdcpSduKbytesDL.NonGBRVS_ERABs_NonGBR_PDCP_SDU_UP_NotFromFwd_kbyte_DL上行PDCP層流量：監(jiān)控指標(biāo)監(jiān)控指標(biāo)3GPP定義計(jì)數(shù)器定義計(jì)數(shù)器ALU計(jì)數(shù)器計(jì)數(shù)器NPO indicator上行上行PDCP層流量（層流量（VoIP業(yè)務(wù)）業(yè)務(wù)） VS.DRBPdcpSduKbytesUL.VoIPVS_ERAB_VoIP_PDCP_SDU_UP_NotFromFwd_kbyte_ULVS_ERABs_all_PDCP_SDU_UP_NotFromFwd_kbyte_UL上行上行PDCP層流量（非層流量（非VoIP的的GBR業(yè)務(wù)）業(yè)務(wù)）VS.DRBPdcpSduKby