(完整word版)LTE切换信令.doc

在AttachComplete后下发的第一条RRCConnectionReconfiguration信令消息中下发测量配置。measObjectID测量对象IDcarrierFreq测量频点（服务频率）offsetFreq0db即OfsQoffsetFreqMODCELL服务小区的频率偏置cellstoAddMod第一个是服务小区，PCI=18如果CIO即Ocn邻区的小区偏置为0信令上不带邻区不为0会带邻区给UEcellIndividualoffset0db即OcsCellspecificoffsetMODCELL服务小区的小区偏置ReportConfig测量报告配置reportconfigID测量报告ID测量报告1号配的是eventA3a3-Offset4单位0.5db等于2db即OffIntraFreqHoA3OffetMODINTRAFREQHOGROUP同频切换偏置hysteresis4单位0.5db等于2db即HysIntraFreqHoA3HystMODINTRAFREQHOGROUP同频切换幅度迟滞timeToTrigger320msIntraFreqHoA3TimeToTrig同频切换时间迟滞MODCELLtriggerQuantityA3测量触发类型IntraFreqHoA3TrigQuanMODINTRARATHOCOMNmaxReportCells测量上报最大小区数IntraRatHoMaxRprtcellMODINTRARATHOCOMNreportIntervalA3测量报告上报间隔IntraFreqHoRprtIntervalMODINTRARATHOCOMNreportAmount测量报告上报次数IntraRatHoRprtAmountMODINTRARATHOCOMN测量报告2号配的是eventA1Ms-Hys>ThreshMs-1>-87即Ms>-86时触发A1事件Threshold-RSRP门限53-140=-87InterFreqHoA1ThdRsrporA3InterFreqHoA1ThdRsrpMODINTERFREQHOGROUPHysteresis1dbInterFreqHoA1A2HystMODINTERFREQHOGROUPtimeToTrigger640msInterFreqHoA1A2TimeToTrig异频A1A2时间迟滞triggerQuantityInterFreqHoA1A2TrigQuanA1A2测量触发类型MODINTRARATHOCOMM测量报告3号配的是eventA2Ms+Hys<ThreshMs+1<-90即Ms<-91时触发A2事件Threshold-RSRP门限50-140=-90InterFreqHoA1ThdRsrporA3InterFreqHoA1ThdRsrpMODINTERFREQHOGROUPHysteresis1dbInterFreqHoA1A2HystMODINTERFREQHOGROUPtimeToTrigger640msInterFreqHoA1A2TimeToTrig异频A1A2时间迟滞triggerQuantityInterFreqHoA1A2TrigQuanA1A2测量触发类型MODINTRARATHOCOMMA2开始测量，A1停止测量当Ms<-91dbm时，启动测量；当Ms>-86时，停止测量。测量报告4号配的是eventA1Ms-1>-92Ms>-91测量报告5号配的是eventA2Ms+1<-94Ms<-95一共配了5个MeasIdMeasobject都是同一个频点配了5个event两组A1A2分别对应A3A40rA5手机满足Event条件则上报测量报告MeasurementReport对应的是MeasId=2eventA1Ms>-86对应的是MeasId=4eventA1Ms>-91对应的是MeasId=1eventA3Mn>Ms+4-65>-66RRCConnectionReconfiguration下达切换指令targetPhyscellId目标小区的PCIt304计时器newUE-Identity目标小区给UE分配的C-RNTI，用于UE在目标小区的非随机竞争接入