US 12,231,360 B2
Signal communication method and device
Bin Ren, Beijing (CN)
Assigned to Datang Mobile Communications Equipment Co., Ltd., Beijing (CN)
Appl. No. 17/640,206
Filed by DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing (CN)
PCT Filed Jul. 7, 2020, PCT No. PCT/CN2020/100733
§ 371(c)(1), (2) Date Mar. 3, 2022,
PCT Pub. No. WO2021/057175, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 201910937193.6 (CN), filed on Sep. 29, 2019.
Prior Publication US 2022/0321293 A1, Oct. 6, 2022
Int. Cl. H04L 5/00 (2006.01); H04W 64/00 (2009.01); H04W 72/04 (2023.01); H04W 72/20 (2023.01)
CPC H04L 5/0048 (2013.01) [H04W 64/00 (2013.01); H04W 72/20 (2023.01)] 10 Claims
OG exemplary drawing
 
1. A signal communication method, the method comprising:
sending a first Sidelink Positioning Reference Signal, SPRS, to a second terminal through a sidelink between a first terminal and the second terminal, and receiving a second SPRS sent by the second terminal;
performing a positioning measurement based on the second SPRS to obtain a first positioning measurement value;
reporting the first positioning measurement value to a network side; and receiving a second positioning measurement value forwarded by the network side, wherein the second positioning measurement value is obtained by the second terminal performing a positioning measurement based on the first SPRS;
the method further comprising:
sending the first SPRS to a third terminal through a sidelink between the first terminal and the third terminal, and receiving a third SPRS sent by the third terminal;
performing a positioning measurement based on the third SPRS to obtain another first positioning measurement value;
reporting the another first positioning measurement value to the network side; and
receiving a third positioning measurement value forwarded by the network side, wherein the third positioning measurement value is obtained by the third terminal performing a positioning measurement based on the first SPRS;
determining relative distance information from the second terminal to the first terminal according to the first positioning measurement value and the second positioning measurement value; and determining relative distance information from the third terminal to the first terminal according to the another first positioning measurement value and the third positioning measurement value;
or
wherein a third positioning measurement value for the third terminal measured by the second terminal is also received when the second positioning measurement value is received; and
the method further comprises:
receiving a positioning measurement value for the second terminal measured by the third terminal and forwarded by a base station;
determining relative distance information from the second terminal to the first terminal according to the first positioning measurement value and the second positioning measurement value;
determining relative distance information from the third terminal to the second terminal according to the third positioning measurement value and the positioning measurement value for the second terminal measured by the third terminal;
determining relative distance information from the first terminal to the third terminal according to the relative distance information from the second terminal to the first terminal and the relative distance information from the third terminal to the second terminal.