US 12,276,742 B2
Method for positioning, terminal, and network-side device
Deshan Miao, Beijing (CN); Bin Ren, Beijing (CN); and Ren Da, Bejing (CN)
Assigned to DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing (CN)
Appl. No. 17/767,921
Filed by DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing (CN)
PCT Filed Nov. 9, 2020, PCT No. PCT/CN2020/127573
§ 371(c)(1), (2) Date Apr. 11, 2022,
PCT Pub. No. WO2021/093710, PCT Pub. Date May 20, 2021.
Claims priority of application No. 201911094955.7 (CN), filed on Nov. 11, 2019.
Prior Publication US 2023/0194648 A1, Jun. 22, 2023
Int. Cl. G01S 5/02 (2010.01); G01S 5/00 (2006.01); H04L 5/00 (2006.01); H04W 64/00 (2009.01)
CPC G01S 5/0072 (2013.01) [H04L 5/0051 (2013.01); H04W 64/006 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A positioning method, comprises:
obtaining, by a first terminal, positioning auxiliary information;
determining, by the first terminal, position information of a second terminal relative to the first terminal according to obtained positioning auxiliary information;
wherein the obtaining, by the first terminal, positioning auxiliary information, comprises:
obtaining, by the first terminal, timestamp information of a sending moment of a first positioning signal by sending the first positioning signal to the second terminal;
obtaining, by the first terminal, timestamp information of a receiving moment of a second positioning signal by receiving the second positioning signal sent by the second terminal, and receiving time difference information sent by the second terminal; wherein the time difference information is used to indicate a time difference between time when the second terminal receives the first positioning signal and time when the second terminal sends the second positioning signal;
the determining, by the first terminal, position information of the second terminal relative to the first terminal according to the obtained positioning auxiliary information, comprises: determining, by the first terminal, a relative distance between the second terminal and the first terminal according to the timestamp information of the sending moment of the first positioning signal, the timestamp information of the receiving moment of the second positioning signal and the time difference information; and determining a relative position between the second terminal and the first terminal according to the relative distance between the second terminal and the first terminal;
wherein the positioning auxiliary information further comprises speed information and speed direction information of the second terminal;
the determining, by the first terminal, position information of the second terminal relative to the first terminal according to the obtained positioning auxiliary information, comprises:
determining, by the first terminal, the relative distance between the second terminal and the first terminal according to speed information of the first terminal, speed direction information of the first terminal, the speed information of the second terminal, the speed direction information of the second terminal, the timestamp information of the sending moment of the first positioning signal, the timestamp information of the receiving moment of the second positioning signal and the time difference information; and determining the relative position between the second terminal and the first terminal according to the relative distance between the second terminal and the first terminal.