US 12,422,564 B2
Information sending method, apparatus and device, and computer storage medium
Kui Tu, Shanghai (CN); Jie Liu, Shanghai (CN); and Jingyu Wang, Shanghai (CN)
Assigned to CHINA MOBILE SHANGHAI ICT CO., LTD., Shanghai (CN); CM INTELLIGENT MOBILITY, Shanghai (CN); and CHINA MOBILE COMMUNICATIONS GROUP CO., LTD., Beijing (CN)
Appl. No. 18/002,660
Filed by CHINA MOBILE SHANGHAI ICT CO., LTD., Shanghai (CN); CM INTELLIGENT MOBILITY, Shanghai (CN); and CHINA MOBILE COMMUNICATIONS GROUP CO., LTD., Beijing (CN)
PCT Filed Apr. 1, 2021, PCT No. PCT/CN2021/085131
§ 371(c)(1), (2) Date Dec. 21, 2022,
PCT Pub. No. WO2022/033046, PCT Pub. Date Feb. 17, 2022.
Claims priority of application No. 202010819515.X (CN), filed on Aug. 14, 2020.
Prior Publication US 2023/0236325 A1, Jul. 27, 2023
Int. Cl. G01S 19/07 (2010.01)
CPC G01S 19/071 (2019.08) 15 Claims
OG exemplary drawing
 
1. An information ag-transmission method, performed by a roadside device, comprising:
obtaining first information for positioning a terminal, wherein the first information comprises differential positioning information; or the first information comprises: at least one of environmental information or a satellite positioning signal, and the differential positioning information, wherein the differential positioning information comprises a differential value, and the differential value comprises a clock error between a satellite and a receiver, an atmospheric propagation delay and multipath effect; and
determining whether the first information meets a preset condition, and in response to that the first information meets the preset condition, sending the differential positioning information to the terminal,
wherein the method further comprises:
receiving a request from the terminal, wherein the request includes a positioning precision requirement; and
determining a preset differential threshold according to the positioning precision requirement,
wherein in response to that the first information meets the preset condition, sending the differential positioning information to the terminal comprises:
in response to that the differential value is greater than the preset differential threshold, sending the differential positioning information to the terminal.