文档介绍：切换失败•切换成功率一直处于20%-30%较低的水平。通过分析发现XXYINSIGOU_ALH_2sXXGANGOU_ALH_3成功率一直为0%,请求次数还比较多,比较典型。详细指标如下:XXYINSIG0U_ALH_203/05/201603/06/201603/07/201603/08/201603/09/201603/10/HOtoGRENSUCrat000NerrNerr0XXGANGOU_ALH_303/02/201603/03/201603/04/201603/05/201603/06/201603/07/HOtoGRENSUCrat0NerrNerrNerrNerr0•问题分析首先核对参数和邻区配•--J[=切换先关参数核查发现全部配置正确。然后对两个站点所加的2G邻区配置进行核查(频点、NCC、BCC是否和2G现网一致,4G添加的2G邻区是否有同频同BISC),结果均为发现问题。通过对XXYINSIGOU_ALH_2小区进行calltrace跟踪发现向LAC:14160,CI:19019发生切换请求并失败,H:H::E2B484MeNodeB:匚NCM8419MMFMMFC26eNodGb:bNB48419GNodeB;ENB48419oNodeBENB48419MME:MMEC:26:jMeasurementReport11urGHandoverPreparationFailureMeasurementReportHandoverRequired:MME-UG-S1AP--UE-S1AP-:unspecified\MeasurementReport:(:・・10dBJr/>0000691FNRUFS1APID119^ .T,:. !<••:)_:(.MeasurementReport:[MeasId::・\-KSKQ-10dBJL'ME-UES1AP-ID120000691ENB-UE-S1AP-ID1195Cause:unspecifiedMeasurementReport[--10d@]MME-UE-S1AP--UE-S1AP-ID::itetooer;NamecodedValue1011•?131416申171819|imca^Reaul^s{measld9,:{[O"5*7B, ]bandlndxcatordcs!olourCode'110*B,IbaseScacionColouxCodc'110'BmeAsResulc{Tlme4r»e15Go(1DestinationNE r▼j MessageName ▼]AdditionalIr134RNodKRFNB48419 '、ProzmiianF;