US RE49,729 E1
Session information management method and apparatus
Ruizhi Liu, Shenzhen (CN); Chunshan Xiong, Shenzhen (CN); Yizhuang Wu, Beijing (CN); and Haiyang Sun, Beijing (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Apr. 26, 2022, as Appl. No. 17/729,667.
Application 16/787,571 is a continuation of application No. PCT/CN2018/088903, filed on May 29, 2018.
Application 17/729,667 is a reissue of application No. 16/787,571, filed on Feb. 11, 2020, granted, now 11,172,521, issued on Nov. 9, 2021.
Claims priority of application No. 201710683732.9 (CN), filed on Aug. 11, 2017.
Int. Cl. H04W 76/10 (2018.01); H04W 28/02 (2009.01); H04W 8/18 (2009.01); H04W 8/08 (2009.01); H04W 8/04 (2009.01)
CPC H04W 76/10 (2018.02) [H04W 8/04 (2013.01); H04W 8/08 (2013.01); H04W 8/18 (2013.01); H04W 28/0268 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A session information management method, comprising:
sending, by a session management function network element, identification information of a terminal device, a data network name (DNN), and slice information to a data management network element to request first subscription data that is of the terminal device and that is associated with the DNN and the slice information, wherein the slice information is used to identify a network slice served by the session management function network element; and
[ sending, by the session management function network element to the data management network element, a message comprising the identification information of the terminal device, the DNN, the slice information, and session management function information, wherein the message is for subscribing updated subscription data of the first subscription data from the data management network element; and]
receiving, by the session management function network element, the first subscription data from the data management network element.