1、同異頻切換的參數配置A1事件：事件進入條件：Ms - Hys > Thresh停止異頻測量門限：Threshold th2a for RSRP(Threshold2a) A1遲滯：Related hysteresis of threshold th2a for RSRP (hys threshold2a)服務小區的RSRP- hys threshold2a >Threshold2a，且保持時間超過a1TimeToTriggerDeactInterMeas 的設置時間，則停止異頻測量。A2事件：啟動同頻測量門限threshold1 事件進入條件：Ms + Hys < Thres

2、h 啟動異頻測量門限：Threshold th2 interFreq for RSRP (threshold2InterFreq )A2遲滯：Related hysteresis of threshold th2 interfreq for RSRP(hysThreshold2InterFreq )打開Enable interfrequency handover:異頻切換開關Time to trigger for A2 to activate inter measurement(a2TimeToTriggerActInterFreqMeas )當服務小區的RSRP+ hysThreshold2

3、InterFreq < threshold2InterFreq，且保持時間超過的設置時間a2TimeToTriggerActInterFreqMeas ，則開始異頻測量A3事件事件進入條件：Mn + Ofn + Ocn - Hys > Ms + Ofs + Ocs + Off 事件離開條件：Mn + Ofn + Ocn + Hys < Ms + Ofs + Ocs + Off NSN無Ofn/Ocn/Ofs/Ocs 參數同頻A3事件同頻A3遲滯：Related hysteresis of offset a3offset for RSRP intra F(hysA3Offset

4、 )A3報告時長:A3 report intervalA3觸發時延:A3 time to triggerA3偏置:A3offset故同頻A3事件需滿足：鄰小區的RSRP-hysA3Offset >服務小區的RSRP+ a3Offset ，由于hysA3Offset配置為0，故A3事件的示意圖如下圖所示：異頻A3事件異頻A3偏置 A3 offset RSRP inter frequencya3OffsetRsrpInterFreq 異頻A3報告時長：A3 report interval RSRP inter frequency異頻A3觸發時延：A3 time to trigger RSRP

5、 inter frequency異頻A3遲滯：Related hysteresis offset a3offset RSRP inter frequencyhysA3OffsetRsrpInterFreq 異頻A3事件滿足：鄰小區的RSRPhysA3OffsetRsrpInterFreq >服務小區的RSRP+ a3OffsetRsrpInterFreqA5事件：事件進入條件：Ms + Hys < Thresh1 且 Mn + Ofn + Ocn- Hys >Threah2諾西無Ofn/Ocn參數同頻A5事件：Thresh1:Threshold th3 for RSRP(th

6、reshold3 )Thresh2 :Threshold th3a for RSRPthreshold3a A5報告時長A5 report intervalA5觸發時延A5 time to triggerA5遲滯Related hysteresis th3 and th3a for RSRP同頻A5事件滿足：當服務小區的RSRP+hysThreshold3<threshold3,且鄰區RSRP- hysThreshold3>threshold3a由于現網中的遲滯配置為0，故只要服務小區低于threshold3，鄰區高于threshold3a，并達到觸發的時間，就會發生切換，其示意圖

7、如圖所示：異頻A5事件：Thresh1:Threshold th3 for RSRP inter frequency（threshold3InterFreq ）Thresh2 :Threshold th3a for RSRP inter frequency（threshold3aInterFreq ）A5報告時長A5 report interval inter frequencyA5觸發時延A5 time to trigger inter frequencyA5遲滯Related hysteresis of thresholds th3 and th3a for RSRP （hysThreshold3InterFreq ） 異頻A5事件滿足：當前服務小區的RSRP+hysThreshold3interFreq< threshold3InterFreq并滿足：鄰區的RSRP- hysThreshold3interFreq> threshold3aInterFreq A4事件：事件進入條件：Mn + Ofn + Ocn - Hys > Thresh 通過A5事件來實現，將A5事件中的Thresh1配置一個很高的值，使Ms + Hys &