描述:
UEmay meet many PS/CS fail issue when stayin weak signal area, so we need to check whetherUE is in the weak signal or not by modem log
方法:
1 for LTE, we can refer to"FAQ14037 [LTE]How to check 4G LTE serving cell and Signal
strength" firstly to check serving cell'sRSRPandrsrq,if rsrp <-115dbm or rsrq<-13db,we
can judge UE stay in the weak signal area