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

Claim 11:
12. The method according to claim 11,
after receiving, by the UPF, the second request sent by the backup SMF, further comprising: sending, by the UPF, a second response to the second request to the backup SMF, wherein the second response to the second request carries the Node ID of the backup SMF, and the second response to the second request is used for notifying the backup SMF that the UPF accepts or rejects the second request;
or,
after receiving, by the UPF, the fourth request sent by the backup SMF, further comprising: sending, by the UPF, a fourth response to the fourth request to the main SMF, wherein the fourth response to the fourth request carries the Node ID of the main SMF, and the fourth response to the fourth request is used for notifying the main SMF that the UPF accepts or rejects the fourth request.