Patent ID: 11889330
Assignee: ZTE CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. The method according to claim 8,
after receiving, by the UPF, the first request sent by the backup SMF, further comprising:
sending, by the UPF, a first response to the first request to the backup SMF,
wherein the first response to the first request carries the Node ID of the backup SMF, and the first response to the first request is used for notifying the backup SMF that the UPF accepts or rejects the first request;
or,
after receiving, by the UPF, the third request sent by the main SMF, further comprising:
sending, by the UPF, a third response to the third request to the main SMF,
wherein the third response to the third request carries the Node ID of the main SMF, and the third response to the third request is used for notifying the main SMF that the UPF accepts or rejects the third request.