同異頻切換的參數(shù)配置

1、同異頻切換的參數(shù)配置A1事件：事件進(jìn)入條件：Ms - Hys > Thresh停止異頻測(cè)量門(mén)限：Threshold th2a for RSRP(Threshold2a) A1遲滯：Related hysteresis of threshold th2a for RSRP (hys threshold2a)服務(wù)小區(qū)的RSRP- hys threshold2a >Threshold2a，且保持時(shí)間超過(guò)a1TimeToTriggerDeactInterMeas 的設(shè)置時(shí)間，則停止異頻測(cè)量。A2事件：?jiǎn)?dòng)同頻測(cè)量門(mén)限threshold1 事件進(jìn)入條件：Ms + Hys < Thres

2、h 啟動(dòng)異頻測(cè)量門(mén)限：Threshold th2 interFreq for RSRP (threshold2InterFreq )A2遲滯：Related hysteresis of threshold th2 interfreq for RSRP(hysThreshold2InterFreq )打開(kāi)Enable interfrequency handover:異頻切換開(kāi)關(guān)Time to trigger for A2 to activate inter measurement(a2TimeToTriggerActInterFreqMeas )當(dāng)服務(wù)小區(qū)的RSRP+ hysThreshold2

3、InterFreq < threshold2InterFreq，且保持時(shí)間超過(guò)的設(shè)置時(shí)間a2TimeToTriggerActInterFreqMeas ，則開(kāi)始異頻測(cè)量A3事件事件進(jìn)入條件：Mn + Ofn + Ocn - Hys > Ms + Ofs + Ocs + Off 事件離開(kāi)條件：Mn + Ofn + Ocn + Hys < Ms + Ofs + Ocs + Off NSN無(wú)Ofn/Ocn/Ofs/Ocs 參數(shù)同頻A3事件同頻A3遲滯：Related hysteresis of offset a3offset for RSRP intra F(hysA3Offset

4、 )A3報(bào)告時(shí)長(zhǎng):A3 report intervalA3觸發(fā)時(shí)延:A3 time to triggerA3偏置:A3offset故同頻A3事件需滿足：鄰小區(qū)的RSRP-hysA3Offset >服務(wù)小區(qū)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(bào)告時(shí)長(zhǎng)：A3 report interval RSRP inter frequency異頻A3觸發(fā)時(shí)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(qū)的RSRPhysA3OffsetRsrpInterFreq >服務(wù)小區(qū)的RSRP+ a3OffsetRsrpInterFreqA5事件：事件進(jìn)入條件：Ms + Hys < Thresh1 且 Mn + Ofn + Ocn- Hys >Threah2諾西無(wú)Ofn/Ocn參數(shù)同頻A5事件：Thresh1:Threshold th3 for RSRP(th

6、reshold3 )Thresh2 :Threshold th3a for RSRPthreshold3a A5報(bào)告時(shí)長(zhǎng)A5 report intervalA5觸發(fā)時(shí)延A5 time to triggerA5遲滯Related hysteresis th3 and th3a for RSRP同頻A5事件滿足：當(dāng)服務(wù)小區(qū)的RSRP+hysThreshold3<threshold3,且鄰區(qū)RSRP- hysThreshold3>threshold3a由于現(xiàn)網(wǎng)中的遲滯配置為0，故只要服務(wù)小區(qū)低于threshold3，鄰區(qū)高于threshold3a，并達(dá)到觸發(fā)的時(shí)間，就會(huì)發(fā)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(bào)告時(shí)長(zhǎng)A5 report interval inter frequencyA5觸發(fā)時(shí)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(dāng)前服務(wù)小區(qū)的RSRP+hysThreshold3interFreq< threshold3InterFreq并滿足：鄰區(qū)的RSRP- hysThreshold3interFreq> threshold3aInterFreq A4事件：事件進(jìn)入條件：Mn + Ofn + Ocn - Hys > Thresh 通過(guò)A5事件來(lái)實(shí)現(xiàn)，將A5事件中的Thresh1配置一個(gè)很高的值，使Ms + Hys &