US 12,114,210 B2
Communication method and apparatus
Huan Li, Shenzhen (CN); Weisheng Jin, Shanghai (CN); and Hualin Zhu, Shanghai (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Jul. 30, 2021, as Appl. No. 17/389,782.
Application 17/389,782 is a continuation of application No. PCT/CN2020/072858, filed on Jan. 17, 2020.
Claims priority of application No. 201910097448.2 (CN), filed on Jan. 31, 2019.
Prior Publication US 2021/0360488 A1, Nov. 18, 2021
Int. Cl. H04W 4/00 (2018.01); H04W 36/00 (2009.01); H04W 76/12 (2018.01); H04W 76/32 (2018.01); H04L 12/18 (2006.01); H04L 65/611 (2022.01); H04W 4/06 (2009.01)
CPC H04W 36/0007 (2018.08) [H04W 36/0033 (2013.01); H04W 76/12 (2018.02); H04W 76/32 (2018.02); H04L 12/18 (2013.01); H04L 65/611 (2022.05); H04W 4/06 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A communication method, comprising:
sending, by a source access device, a first message to an access controller, wherein the first message is used to request hand over of a terminal device to a target access device, and the first message comprises a multicast service context of the terminal device;
receiving, by the source access device, a fifth message from the access controller, wherein the fifth message is used to respond to the first message, and the fifth message comprises first indication information indicating whether to forward multicast service data;
determining, by the source access device and based on the fifth message, whether the target access device subscribes to a multicast service currently performed by the terminal device; and
when the target access device does not subscribe to the multicast service, notifying, by the source access device, the terminal device to subscribe to the multicast service through the target access device.