Positioning information transmission method, related device, and system

Patent metadata

Field	Value
Publication number	US-11234207-B2
Application number	US-201916403117-A
Country	US
Kind code	B2
Filing date	May 3, 2019
Priority date	Nov 4, 2016
Publication date	Jan 25, 2022
Grant date	Jan 25, 2022

Abstract

Embodiments of the present disclosure disclose a positioning information transmission method, a related device, and a system. The positioning information transmission method includes: determining an uplink subframe for carrying an uplink signal and a downlink subframe for carrying a downlink signal; determining first measurement information and second measurement information; and sending the first measurement information and the second measurement information to a positioning server, for locating a terminal device by the positioning server. Positioning accuracy can be improved by using the embodiments of the present disclosure.

First claim

What is claimed is:

1. A positioning information transmission method, wherein the method is applied to a base station, and the method comprises:
determining an uplink subframe for carrying an uplink signal;
determining a downlink subframe for carrying a downlink signal;
determining, by the base station, first measurement information, wherein the first measurement information comprises a difference between a receiving time of the uplink signal and a sending time of the downlink signal;
determining, by the base station, second measurement information, wherein the second measurement information indicates a difference between a subframe identifier of the uplink subframe and a subframe identifier of the downlink subframe; and
determining third measurement information based on the first measurement information and the second measurement information, wherein the third measurement information indicates a distance between the base station and a terminal device, and the third measurement information is determined based on subtracting the second measurement information from the first measurement information; and
sending the third measurement information to a positioning server, for locating the terminal device.

2. The method according to claim 1 , wherein the second measurement information comprises at least one of the following:
the uplink subframe and the downlink subframe;
a quantity of repeat times of the uplink subframe;
a quantity of repeat times of the downlink subframe;
the difference between the uplink subframe and the downlink subframe; or
a configuration between an uplink subframe and a downlink subframe.

3. A positioning information transmission method, wherein the method is applied to a terminal device, and the method comprises:
determining first measurement information, wherein the first measurement information comprises a difference between a receiving time of a downlink signal and a sending time of an uplink signal;
determining an uplink subframe for carrying the uplink signal;
determining a downlink subframe for carrying the downlink signal;
determining second measurement information, wherein the second measurement information indicates a difference between a subframe identifier of the uplink subframe and a subframe identifier of the downlink subframe; and
determining third measurement information based on the first measurement information and the second measurement information, wherein the third measurement information indicates a distance between a base station and the terminal device, and the third measurement information is determined based on subtracting the second measurement information from the first measurement information; and
sending the third measurement information to a positioning server, for locating the terminal device.

4. The method according to claim 3 , wherein the second measurement information comprises at least one of the following:
the uplink subframe and the downlink subframe;
a quantity of repeat times of the uplink subframe;
a quantity of repeat times of the downlink subframe;
the difference between the uplink subframe and the downlink subframe; and
a configuration between an uplink subframe and a downlink subframe.

5. The method according to claim 3 , wherein before the sending the third measurement information to the positioning server, the method further comprises:
sending identity information to the positioning server, wherein the identity information indicates that the terminal device has a capability of sending the third measurement information; and
in response to receiving a measurement information obtaining request that is fed back by the positioning server in response to the identity information, sending the third measurement information to the positioning server.

6. A positioning information transmission method, wherein the method is applied to a positioning server, and the method comprises:
receiving, by the positioning server, third measurement information from a terminal device, wherein the third measurement information indicates a distance between a base station and the terminal device, and the third measurement information is determined based on a difference between second measurement information and first measurement information, wherein the first measurement information comprises a difference between a receiving time of an uplink signal and a sending time of a downlink signal, or the first measurement information comprises a difference between a receiving time of a downlink signal and a sending time of an uplink signal, and the second measurement information indicates a difference between a subframe identifier of an uplink subframe carrying the uplink signal and a subframe identifier of a downlink subframe carrying the downlink signal; and
locating the terminal device based on the third measurement information.

7. The method according to claim 6 , wherein the second measurement information comprises at least one of the following:
the uplink subframe and the downlink subframe;
a quantity of times of repeatedly carrying the uplink subframe;
a quantity of times of repeatedly carrying the downlink subframe;
the difference between the uplink subframe and the downlink subframe; and
a configuration between the uplink subframe and the downlink subframe.

8. A base station, comprising a processor, a memory, a transmitter, and a receiver, wherein the memory stores a set of program code, and the processor calls the program code stored in the memory to perform the following operations:
determining an uplink subframe for carrying an uplink signal;
determining a downlink subframe for carrying a downlink signal;
determining, by the base station, first measurement information, wherein the first measurement information comprises a difference between a receiving time of the uplink signal and a sending time of the downlink signal, or the first measurement information comprises a difference between a receiving time of the downlink signal and a sending time of the uplink signal;
determining, by the base station, second measurement information, wherein the second measurement information indicates a difference between a subframe identifier of the uplink subframe and a subframe identifier of the downlink subframe; and
determining third measurement information based on the first measurement information and the second measurement information, wherein the third measurement information indicates a distance between the base station and a terminal device, and the third measurement information is determined based on subtracting the second measurement information from the first measurement information; and
sending the third measurement information to a positioning server, for locating the terminal device.

9. A terminal device, comprising a processor, a memory, a transmitter, and a receiver, wherein the memory stores a set of program code, and the processor calls the program code stored in the memory to perform the following operations:
determining first measurement information, wherein the first measurement information comprises a difference between a receiving time of a downlink signal and a sending time of an uplink signal;
determining an uplink subframe for carrying the uplink signal;
determining a downlink subframe for carrying the downlink signal;
determining second measurement information, wherein the second measurement information indicates a difference between a subframe identifier of the uplink subframe and a subframe identifier of the downlink subframe; and
determining third measurement information based on the first measurement information and the second measurement information, wherein the third measurement information indicates a distance between a base st

Assignees

• Huawei Tech Co Ltd

Inventors

• Xue Jiantao
• Wang Kailong
• Gao Yuan
• Han Jing
• Wang Yueqi

Classifications

• H04W64/00 Primary

  Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management · CPC title

• G01S5/0081 Primary

  Transmission between base stations · CPC title

• G01S5/14

  Determining absolute distances from a plurality of spaced points of known location · CPC title

• H04W4/02

  Services making use of location information · CPC title

• H04W4/00

  Services specially adapted for wireless communication networks; Facilities therefor · CPC title