US 12,457,470 B2
Relative positioning method, apparatus, and system
Hongping Zhang, Shenzhen (CN); Huiming Sun, Shanghai (CN); and Qinghai Zeng, Shanghai (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD, Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on May 27, 2022, as Appl. No. 17/826,669.
Application 17/826,669 is a continuation of application No. PCT/CN2019/122075, filed on Nov. 29, 2019.
Prior Publication US 2022/0286810 A1, Sep. 8, 2022
Int. Cl. H04W 4/02 (2018.01)
CPC H04W 4/023 (2013.01) 18 Claims
OG exemplary drawing
 
1. A relative positioning method, comprising:
obtaining, by a first terminal, a plurality of first relative positions, wherein each of the plurality of first relative positions is determined based on a second relative position and a third relative position, wherein
a first relative position is an initial relative position between the first terminal and a second terminal;
the second relative position is a relative position between the first terminal and a reference point; and
the third relative position is received from the reference point by the first terminal and is a relative position between the second terminal and the reference point; and
processing, by the first terminal, the plurality of first relative positions to obtain a relative position between the first terminal and the second terminal, wherein
the relative position comprises a length and an angle;
the length is a length of a line segment between two terminals corresponding to the relative position;
the angle is an included angle formed between a straight line on which the two terminals are located and a normal line along an angle direction;
the normal line is a straight line in a preset direction;
the angle direction is a clockwise direction or a counterclockwise direction; and
the processing comprises adjusting a model based on the relative position to improve an accuracy of the relative position obtained by the first terminal.