TDLTE网络性能KPI切换成功率优化手册复习课程.docx
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TDLTE网络性能KPI切换成功率优化手册复习课程.docx
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TDLTE网络性能KPI切换成功率优化手册复习课程
TD-LTE网络性能KPI(切换成功率)优化手册
1切换成功率定义说明
1.1指标公式
指标名称
集团规范公式
NSN映射公式
切换成功率
(eNB间S1切换出成功次数+eNB间X2切换出成功次数+eNB内切换出成功次数)/(eNB间S1切换出请求次数+eNB间X2切换出请求次数+eNB内切换出请求次数)*100%
100*sum(M8009C7+M8014C7+M8014C19)/sum(M8009C6+M8014C0+M8014C14)
1.2COUNTER定义
1.2.1集团规范定义
1、eNB间S1切换出请求次数:
源eNB向MME发送的“切换请求”消息(HANDOVERREQUIRED)(3GPPTS36.413),指示eNB间通过S1接口的切换出准备请求。
向不同小区发送的同一切换准备请求,需要重复统计。
2、eNB间S1切换出成功次数:
源eNB收到MME发送的“UE上下文释放命令”消息(UECONTEXTRELEASECOMMAND)(3GPPTS36.413),指示eNB间通过S1接口的切换出执行成功。
3、eNB间X2切换出请求次数:
源eNB向目标eNB发送的“切换请求”消息(HANDOVERREQUEST)(3GPPTS36.423),指示eNB间通过X2接口的切换出准备请求。
向不同小区发送的同一切换准备请求,重复统计。
4、eNB间X2切换出成功次数:
源eNB收到目标eNB发送的“UE上下文释放”消息(UECONTEXTRELEASE)(3GPPTS36.423),指示eNB间通过X2接口的切换出执行成功。
5、eNB内切换出请求次数:
eNB向UE发送携带mobilityControlInfo的“RRC连接重配置”消息(RRCConnectionReconfiguration),指示eNB内小区间切换出请求。
(3GPPTS36.331)
6、eNB内切换出成功次数:
eNB收到UE发送的“RRC连接重配置完成”消息(RRCConnectionReconfigurationComplete),指示eNB内小区间切换出成功。
(3GPPTS36.331)
1.2.2NSN映射
1、eNB间S1切换出请求次数:
M8014C14:
INTER_ENB_S1_HO_PREP,ThenumberofIntereNBS1-basedHandoverpreparations;
2、eNB间S1切换出成功次数:
M8014C19:
INTER_ENB_S1_HO_SUCC,ThenumberofsuccessfulIntereNBS1-basedHandovercompletions;
3、eNB间X2切换出请求次数:
M8014C0:
INTER_ENB_HO_PREP,ThenumberofInter-eNBX2-basedHandoverpreparations.TheMobilitymanagement(MM)receivesalistwithtargetcellsfromtheRRManddecidestostartanInter-eNBX2-basedHandover;
4、eNB间X2切换出成功次数:
M8014C7:
SUCC_INTER_ENB_HO,ThenumberofsuccessfulInter-eNBX2-basedHandovercompletions;
5、eNB内切换出请求次数:
M8009C6:
ATT_INTRA_ENB_HO,ThenumberofIntra-eNBHandoverattempts;
6、eNB内切换出成功次数:
M8009C7:
SUCC_INTRA_ENB_HO,ThenumberofsuccessfulIntra-eNBHandovercompletions;
1.3信令统计点
1.3.1eNB间S1切换
Counter
CounterID
NetActname
eNB间S1切换请求次数
M8014C14
INTER_ENB_S1_HO_PREP
eNB间S1切换目标小区准备失败次数
M8014C15
INTER_S1_HO_PREP_FAIL_TIME
M8014C16
INTER_S1_HO_PREP_FAIL_NORR
M8014C17
INTER_S1_HO_PREP_FAIL_OTHER
eNB间S1切换尝试次数
M8014C18
INTER_ENB_S1_HO_ATT
eNB间S1切换成功次数
M8014C19
INTER_ENB_S1_HO_SUCC
eNB间S1切换失败次数
M8014C20
INTER_ENB_S1_HO_FAIL
统计点关系:
M8014C14=M8014C15+M8014C16+M8014C17+M8014C18
M8014C18=M8014C19+M8014C20(注:
现网实际数据对不上)
1、M8014C14:
INTER_ENB_S1_HO_PREP
Updated:
ThiscounterisupdatedfollowingthetransmissionofanS1AP:
HANDOVERREQUIREDmessagefromthesourceeNBtotheMMEifthismessagepreparesanIntereNBHandover.
2、M8014C15:
INTER_S1_HO_PREP_FAIL_TIME
Updated:
ThiscounterisupdatedattheexpiryoftheguardingtimerTS1RELOCprepifthetimerwasstartedbecauseofthepreparationofanIntereNBHandover.
3、M8014C16:
INTER_S1_HO_PREP_FAIL_NORR
Updated:
ThiscounterisupdatedfollowingthereceptionofanS1AP:
HANDOVERPREPARATIONFAILUREmessagefromMMEtosourceeNBwithcause"NoRadioResourcesAvailableinTargetCell"ifthismessageisreceivedinresponsetothepreparationofanIntereNBHandover.
4、M8014C17:
INTER_S1_HO_PREP_FAIL_OTHER
Updated:
ThenumberoffailedIntereNBS1-basedHandoverpreparationsduetothereceptionofanS1AP:
HANDOVERPREPARATIONFAILUREmessagewithacauseotherthan"NoRadioResourcesAvailableinTargetCell."
5、M8014C18:
INTER_ENB_S1_HO_ATT
Updated:
ThiscounterisupdatedfollowingthereceptionofanS1AP:
HANDOVERCOMMANDmessagefromtheMMEtothesourceeNBincasethatthismessageisreceivedinresponsetothepreparationofanIntereNBHandover.
6、M8014C19:
INTER_ENB_S1_HO_SUCC
Updated:
ThiscounterisupdatedfollowingthereceptionofanS1AP:
UECONTEXTRELEASECOMMANDmessagefromtheMMEtothesourceeNBwiththecausevalueRadioNetworkLayer(SuccessfulHandover)incasethatthismessageisreceivedforanIntereNBHandover.
7、M8014C20:
INTER_ENB_S1_HO_FAIL
Updated:
ThiscounterisupdatedfollowingtheexpiryoftheguardingtimerTS1RELOCoverallincasethatthistimerwasstartedbecauseofanIntereNBHandover.
1.3.2eNB间X2切换
Counter
CounterID
NetActname
eNB间X2切换请求次数
M8014C0
INTER_ENB_HO_PREP
eNB间X2切换目标小区准备失败次数
M8014C2
FAIL_ENB_HO_PREP_TIME
M8014C3
FAIL_ENB_HO_PREP_AC
M8014C5
FAIL_ENB_HO_PREP_OTHER
eNB间X2切换尝试次数
M8014C6
ATT_INTER_ENB_HO
eNB间X2切换成功次数
M8014C7
SUCC_INTER_ENB_HO
eNB间X2切换失败次数
M8014C8
INTER_ENB_HO_FAIL
统计点关系:
M8014C0=M8014C2+M8014C3+M8014C5+M8014C6
M8014C6=M8014C7+M8014C8(注:
现网实际数据对不上)
1、M8014C0:
INTER_ENB_HO_PREP
Updated:
ThiscounterisupdatedfollowingthetransmissionofanX2AP:
HandoverRequesttothetargeteNB.
2、M8014C2:
FAIL_ENB_HO_PREP_TIME
Updated:
ThiscounterisupdatedfollowingtheexpiryoftheguardingtimerTX2RELOCprep.
3、M8014C3:
FAIL_ENB_HO_PREP_AC
Updated:
ThiscounterisupdatedfollowingthereceptionofanX2AP:
HandoverPreparationFailuremessagefromthetargeteNB.
4、M8014C5:
FAIL_ENB_HO_PREP_OTHER
Updated:
Thecounterisupdatedifthefailuredetecteddoesnotmatchanyotherfailurecounter.
5、M8014C6:
ATT_INTER_ENB_HO
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