A.PDU会话的锚点UPF可以改变,且保持业务持续
B.PDU会话建立后,Anchor UPF保持不变,类似EPC
C.PDU会话的锚点UPF可以改变,但需要重建PDU会话
D.None
A.Registration Request
B.Registration Accept
C.RRC Reconfiguration
D.PDU Session Establishment Accpet
A.PDUSessionResourceNotify
B.PDUSessionResourceReleaseResponse
C.PDUSessionResourceReleasemand
D.UEContextReleasemand
A、N4 Session ID
B、PDU Session ID
C、SM Context ID
D、MM Context ID