切换控制面时延跟切换业务面时延该怎样理解？如何计算？

control plane is simple:  from last Measurement report to RRC Reconfiguration Complete.


user plane :

scenario 1:   data forwarding disable

UE do TCP ( ftp ,etc) , take wireshark log,  check interval from last packet from serving eNB to the first packet receive from target cell.

scenario 2:  data forwarding enable

also wireshark,  the packet make be mixed, need check checksum to know which packet from serving and target, then calculate interval.