Patent ID: 11968694
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A communication method, comprising:
receiving, by a session management function network element, a second message from a terminal device, wherein the second message requests a multicast service, and the second message comprises an identifier of the multicast service;
sending, by the session management function network element, first identification information to a multicast control function network element, wherein the first identification information is a multicast address of the multicast service or a multicast broadcast service identifier of the multicast service;
receiving, by the session management function network element, multicast information of the multicast service from the multicast control function network element; and
sending, by the session management function network element, a first message to a base station, wherein the first message is used for adding the terminal device to a multicast session corresponding to the multicast service, the first message comprises first indication information, the first indication information indicates the multicast session, and the base station is a base station accessed by the terminal device.