A.S1承载
B.无线承载
C.E-RAB承载
D.外部承载
A.RRCConnection Reestablishment
B.RRCConnection Setup
C.RRCConnection Request
D.RRCConnection Setup Complete
A. SRB2:承载NAS消息,映射到CCCH信道
B. SRB0:承载RRC消息,也可承载NAS消息,映射到DCCH信道
C. SRB3:EN-DC时承载RRC消息,映射到DCCH信道
D. SRB0:承载RRC消息,映射到DCCH信道;
A、RegistrationReRequest
B、PDUSessionEstablishmentRequst
C、PDUSessionEstablishmentAccpet
D、RegistrationAcAccept