US 12,328,637 B2
Method for determining that terminal device is located inside geofence and terminal device
Weibo Hou, Xi'an (CN); Zicheng Yang, Shenzhen (CN); Gelin Ren, Xi'an (CN); Haimou Shi, Xi'an (CN); Xiang Min, Xi'an (CN); Shuai Wang, Xi'an (CN); and Zhenguo Zhou, Shezhen (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Appl. No. 17/442,945
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
PCT Filed Mar. 25, 2019, PCT No. PCT/CN2019/079590
§ 371(c)(1), (2) Date Sep. 24, 2021,
PCT Pub. No. WO2020/191598, PCT Pub. Date Oct. 1, 2020.
Prior Publication US 2022/0191641 A1, Jun. 16, 2022
Int. Cl. H04W 4/02 (2018.01); G01S 5/02 (2010.01); G01S 19/51 (2010.01); H04W 4/021 (2018.01); H04W 4/029 (2018.01)
CPC H04W 4/021 (2013.01) [G01S 5/0236 (2013.01); G01S 19/51 (2013.01); H04W 4/029 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
reporting, by a terminal device, location reference information to a server, wherein the location reference information indicates an area range in which the terminal device is currently located;
receiving, by the terminal device and in response to reporting the location reference information, a positioning library from the server, wherein the positioning library corresponds to the area range, and wherein the positioning library comprises communication access information and corresponding geographical information;
storing, by the terminal device, the positioning library;
obtaining, by the terminal device and based on the positioning library, a first geographical location corresponding to the communication access information;
starting, by the terminal device, a positioning module to obtain a second geographical location of the terminal device when a location relationship between the first geographical location and a geofence meets a first preset condition; and
identifying, by the terminal device and based on the second geographical location, that the terminal device is located inside the geofence.