US 12,471,164 B2
Communication method, apparatus, and system
Meng Li, Beijing (CN); Jiangwei Ying, Beijing (CN); and Yanmei Yang, Beijing (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., GuangDong (CN)
Filed on Nov. 23, 2022, as Appl. No. 17/993,271.
Application 17/993,271 is a continuation of application No. PCT/CN2021/095880, filed on May 25, 2021.
Claims priority of application No. 202010461724.1 (CN), filed on May 27, 2020.
Prior Publication US 2023/0371098 A1, Nov. 16, 2023
Int. Cl. H04W 4/06 (2009.01); H04W 76/15 (2018.01)
CPC H04W 76/15 (2018.02) 20 Claims
OG exemplary drawing
 
6. A communication method, comprising:
receiving, by a mobility management network element, a packet data unit (PDU) session establishment request message from a terminal, wherein the PDU session establishment request message comprises identification information of a multicast group, and the PDU session establishment request message is used by the terminal to join the multicast group;
sending, by the mobility management network element, the identification information of the multicast group to a session management network element based on the PDU session establishment request message, wherein the session management network element is configured to manage a multicast PDU session corresponding to the multicast group;
receiving, by the mobility management network element, context information of the multicast PDU session from the session management network element, wherein the context information of the multicast PDU session is used by the terminal to receive the multicast data during the multicast PDU session; and
sending, by the mobility management network element, a PDU session establishment accept message to the terminal, wherein the PDU session establishment accept message comprises the context information of the multicast PDU session.