Patent ID: 11968743
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A communications system comprising:
a second mobility management entity comprising a context of a first terminal and configured to receive a message related to the first terminal; and
an access device configured to:
receive, from a first mobility management entity and before the first mobility management entity serves the first terminal, first indication information, wherein the first indication information comprises a first group identifier and information about the second mobility management entity, wherein the first indication information indicates that when a failure occurs in the first mobility management entity, terminals corresponding to the first group identifier are to be served by the second mobility management entity;
receive, from the first terminal, the first group identifier; and
send, to the second mobility management entity, based on the first group identifier, and when the failure occurs, the message.