US 12,192,946 B2
Method and apparatus for core network registration and radio access network notification update
Lianhai Wu, Beijing (CN); Haiming Wang, Beijing (CN); Jing Han, Beijing (CN); Zhi Yan, Beijing (CN); and Jie Shi, Beijing (CN)
Assigned to Lenovo (Beijing) Limited, Beijing (CN)
Appl. No. 17/637,300
Filed by LENOVO (BEIJING) LIMITED, Beijing (CN)
PCT Filed Aug. 23, 2019, PCT No. PCT/CN2019/102340
§ 371(c)(1), (2) Date Feb. 22, 2022,
PCT Pub. No. WO2021/035439, PCT Pub. Date Mar. 4, 2021.
Prior Publication US 2022/0286995 A1, Sep. 8, 2022
Int. Cl. H04W 60/04 (2009.01); H04L 1/00 (2006.01); H04W 76/19 (2018.01); H04W 76/20 (2018.01)
CPC H04W 60/04 (2013.01) [H04L 1/0025 (2013.01); H04W 76/19 (2018.02); H04W 76/20 (2018.02)] 15 Claims
OG exemplary drawing
 
1. A method at a user equipment (UE), the method comprising:
storing first registration information of a last serving cell;
receiving, from a first communication device, a message comprising second registration information of a serving cell of the first communication device, wherein the serving cell of the first communication device comprises a serving cell of a base station, and the base station is separate from the first communication device; and
determining whether to perform a registration procedure based on the first registration information and the second registration information.