US 12,267,734 B2
Communication method and communications apparatus
Jiangwei Ying, Beijing (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Apr. 22, 2022, as Appl. No. 17/726,932.
Application 17/726,932 is a continuation of application No. 16/878,543, filed on May 19, 2020, granted, now 11,323,931.
Application 16/878,543 is a continuation of application No. PCT/CN2018/116695, filed on Nov. 21, 2018.
Claims priority of application No. 201711166063.4 (CN), filed on Nov. 21, 2017.
Prior Publication US 2022/0248290 A1, Aug. 4, 2022
Int. Cl. H04W 36/08 (2009.01); H04W 36/00 (2009.01)
CPC H04W 36/0033 (2013.01) 15 Claims
OG exemplary drawing
 
1. A communication method, comprising:
receiving, by a session management function node, a request message from an access control and mobility management function node, wherein the request message requests activation of a session;
determining, by the session management function node before activating the session based on the request message, whether the session is in an active state; and
deleting, in response to the session being in the active state, (radio) access network ((R)AN) tunnel information of the session.