打开并发业务不释放PS开关。

学习了，感谢分享。

是不是双RAB问题，弱覆盖

回复：post927

1、我做过统计：
（1）在纯CS中，这个原因掉话占据1.4%。
（2）在Multi-RAB中：这个原因掉话占据6.3%。（CS+PS）
（3）在纯PS中: 这个原因占据10.2%
因此这个原因还是以PS为主要原因。连带并发业务的时候导致CS一起掉话。

2、检查失败信令：失败地点是100米的地方，EcNo很好，RTWP很好。
3、RAB建立完成，回复响应之后直接掉话。 RAB释放原因是：TRANAP Cause Non standard 。
4、一些是发送测量报告后，掉话，原因是Non standard =138.
5、EV-FAILCAUSE-REPORT:显示UCIU Error Ind RlcStatusUnrecover，


第一个报告：
TRnlcFailCauseStack.dwRnlcFailCauseNum = 1


TRnlcFailCauseStack.atRnlcFailCause[0].btRnlcProcID = 0:eRnlcProcID_Ucpmc

TRnlcFailCauseStack.atRnlcFailCause[0].btInterfaceCause = 0:eRlCrtSuccess,

TRnlcFailCauseStack.atRnlcFailCause[0].btInnerCause = 8448:tExceptionUciuErrorIndTrbRlcStatUnrecover: UCIU Error Ind RlcStatusUnrecover ,

TRnlcFailCauseStack.atRnlcFailCause[0].btFlowExceptionInfo = 950527:FT_NO_FLOW,TT_INIT_TYPE,Error,

TRnlcFailCauseStack.atRnlcFailCause[0].btFlowStatus = 64:NotFoundMsg,

TRnlcFailCauseStack.atRnlcFailCause[0].btFlowStatusExt = 0:0

TRnlcFailCauseStack.atRnlcFailCause[0].btExtendInfoType = 15:NotFoundMsg,

TRnlcFailCauseStack.atRnlcFailCause[0].btExtendInfo = 4194303:Error,

TRnlcFailCauseStack.atRnlcFailCause[0].dwFileCode = 34:ernlcucpmcserve: rnlcucpmcserve.c ,

TRnlcFailCauseStack.atRnlcFailCause[0].dwLineNo = 2972:2972




第二个报告显示：
TRnlcFailCauseStack.dwRnlcFailCauseNum = 1


TRnlcFailCauseStack.atRnlcFailCause[0].btRnlcProcID = 7:eRnlcProcID_Drm
T
RnlcFailCauseStack.atRnlcFailCause[0].btInterfaceCause = 0:eDrmInfCause_None,

TRnlcFailCauseStack.atRnlcFailCause[0].btInnerCause = 501870:eAlgReasonToRelRabUciuError: Uciu error to release rab ,

TRnlcFailCauseStack.atRnlcFailCause[0].btFlowExceptionInfo = 1769472:TriggerType:eDRM_TR_UCIUERROR,PreOrAfterProcess:Before,AfterResult:eNormalSuccess,ServiceCause:OtherServiceCause,btExtraTriggerType:Error


TRnlcFailCauseStack.atRnlcFailCause[0].btFlowStatus = 1023:RNLC_INVALID_FLOW_STATUS,

TRnlcFailCauseStack.atRnlcFailCause[0].btFlowStatusExt = 63:RNLC_INVALID_FLOW_STATUS_EXT,

TRnlcFailCauseStack.atRnlcFailCause[0].btExtendInfoType = 0:eExtendInfoType_Self,

TRnlcFailCauseStack.atRnlcFailCause[0].btExtendInfo = 3294144:SRNC,DRM_ONLY_PS,ActiveCellNum:1,MAINTRCH_HsdschEdch,HsSrvRlId:0,IurExist:0,Stable:1,IntraNCellExist:1,InterNCellExist:1,InterRatNCellExist:1
TRnlcFailCauseStack.atRnlcFailCause[0].dwFileCode = 458762:FILECODE_RNLC_DRM_ENTRY_C,

TRnlcFailCauseStack.atRnlcFailCause[0].dwLineNo = 5842:5842:

学习了，感谢楼主分享