A.NAS协议用于UE和EnodeB之间的信令交互
B.NAS协议用于UE和MME之间的信令交互
C.NAS协议用于EnodeB和MME之间的信令交互
D.NAS协议用于UE.EnodeB和MME三者之间信令交互
A、RRCConnectionReconfiguration
B、Attachacceptcomplete
C、RRCConnectionSetup
D、SCGsplitbearersetup
A.attachrequest
B.createbearerrequest
C.initialUEcontextsetup
D.authenticationrequest