Method for positioning using wireless signal and positioning server

• US 10,306,415 B2
• Filed: 06/20/2014
• Issued: 05/28/2019
• Est. Priority Date: 12/22/2011
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Xiao, Dengkun, Cui, Jie, Xiong, Wen, Li, Hong
• Primary Examiner(s): Iqbal, Khawar
• Application Number:
  US14/310,504
• Publication Number:
  US 20140323153A1
• Time in Patent Office: 1,803 Days
• Field of Search: 4554561, 4554562, 4554563, 455457
• CPC Class Codes: G01S 5/02521 using a radio-map
• CPC Class Codes: H04W 4/027 using movement velocity, acceleration information

Abstract

The embodiments of the present invention provide a method for positioning using wireless signal and a positioning server. The coverage area of wireless signal is divided into multiple grids. The method comprises: acquiring speed information of UE; and determining a grid, in which the UE is located, based at least upon the speed information of the UE and speed information of the grids. Accordingly, according to the embodiments of the present invention, when the UE is positioned by using the wireless signal, the grid in which the UE is located is determined by using the speed information of the UE and the speed information of the grids, so that pattern matching may be performed more accurately and the positioning precision is improved.

Claims

1. A method for positioning using wireless signal, wherein the coverage area of wireless signal is divided into multiple grids, comprising:

acquiring speed information of user equipment (UE);

determining which grid the UE is located in, based at least upon the speed information of the UE and speed information of the grids, wherein the speed information of the grids indicates an expected speed assigned to each of the grids;

determining the location of the UE based on the grid which the UE is located in,

wherein the speed information of the grids comprises speed ranges of the grids, the speed ranges of the grids indicate an expected speed range assigned to each of the grids, and the expected speed range assigned to each of the grids is determined by mapping the location of the grids to a geographic information system (GIS) map in which each area has a corresponding speed range, and the determining which grid the UE is located in, based at least upon the speed information of the UE and the speed information of the grids comprises;

comparing the speed ranges of the grids with the speed information of the UE; and

determining a grid, whose speed range is matched with the speed information of the UE, as the grid in which the UE is located, and

acquiring pattern data information of the UE; and

wherein the determining which grid the UE is located in, based at least upon the speed information of the UE and speed information of the grids, comprises;

determining which grid the UE is located in, on the basis of the speed information and pattern data information of the UE and the speed information and pattern data information of the grids, wherein, the pattern data information of the grids is predefined.

2. The method according to claim 1, wherein the determining a grid, whose speed range is matched with the speed information of the UE, as the grid in which the UE is located, comprises:

when the speed information of the UE is within the speed range of the grid, indicating that the speed information of the UE is matched with the speed range, and determining the grid as the grid in which the UE is located; and

/or

when the speed information of the UE is beyond the speed range of the grid, indicating that the speed information of the UE is not matched with the speed range, and excluding the grid whose speed range is not matched with the speed information of the UE.

3. The method according to claim 1, wherein the determining which grid the UE is located in, on the basis of the speed information and pattern data information of the UE and the speed information and pattern data information of the grids comprises:

determining the grid, whose speed information is matched with the speed information of the UE and pattern data information is matched with the pattern data information of the UE, as the grid in which the UE is located.

4. The method according to claim 3, wherein the determining the grid, whose speed information is matched with the speed information of the UE and pattern data information is matched with the pattern data information of the UE, as the grid in which the UE is located, comprises:

determining at least one candidate grid in which the UE is located according to one of the pattern data information and the speed information of the UE and the grids, and determining a final grid in which the UE is located according to the other of the pattern data information and the speed information.

5. The method according to claim 4, wherein the pattern data information of the UE and the grids is related to at least one of time and scenario.

6. The method according to claim 1, wherein the acquiring the speed information of the UE comprises:

acquiring the speed information of the UE through speed reported by the UE;

or

acquiring the speed information of the UE through handover and cell reselection times of the UE;

or

acquiring the speed information of the UE through historical positioning information of the UE.

7. The method according to claim 6, wherein the speed reported by the UE is one of a current movement speed of the UE and calculated speed according to the historical positioning information of the UE.

8. The method according to claim 1, wherein the pattern data information of the UE comprises signal intensity of a neighboring cell, time advance (TA) information of a serving cell and angle-of-arrival information received by the UE, and the pattern data information of the grids comprises signal intensity of the neighboring cell, TA information of the serving cell and angle-of-arrival information received within the grids.

9. A positioning server for positioning using wireless signal, wherein the coverage area of wireless signal is divided into multiple grids, and the positioning server comprising:

an information acquiring component, configured to acquire speed information of user equipment (UE) and to acquire pattern data information of the UE; and

a grid determining component, configured to determine which grid the UE is located in and determine the location of the UE based on the grid which the UE is located in, based at least upon the speed information of the UE and speed information of the grids, wherein the speed information of the grids indicates an expected speed assigned to each of the grids,

wherein the speed information of the grids comprises speed ranges of the grids, the speed ranges of the grids indicate an expected speed range assigned to each of the grids, and the expected speed range assigned to each of the grids is determined by mapping the location of the grids to a geographic information system (GIS) map in which each area has a corresponding speed range, and the grid determining component comprises;

a speed comparing unit, configured to compare the speed ranges of the grids with the speed information of the UE; and

a determining unit, configured to determine the grid, whose speed range is matched with the speed information of the UE, as the grid in which the UE is located, and

wherein, the grid determining component determines which grid the UE is located in, on the basis of the speed information and pattern data information of the UE and the speed information and pattern data information of the grids, wherein, the pattern data information of the grids is predefined.

10. The positioning server according to claim 9, wherein,

when the speed information of the UE is within the speed range of the grid, the determining unit determines that the speed information of the UE is matched with the speed range, and determines the grid as the grid in which the UE is located;

and/or

when the speed information of the UE is beyond the speed range of the grid, the determining unit determines that the speed information of the UE is not matched with the speed range and excludes the grid whose speed range is not matched with the speed information of the UE.

11. The positioning server according to claim 9, wherein,

the grid determining component determines the grid, whose speed information is matched with the speed information of the UE and pattern data information is matched with the pattern data information of the UE, as the grid in which the UE is located.

12. The positioning server according to claim 11, wherein,

the grid determining component determines at least one candidate grid in which the UE is located according to one of the pattern data information and the speed information of the UE and the grids, and determines a final grid in which the UE is located according to the other of the pattern data information and the speed information.

13. The positioning server according to claim 12, wherein the pattern data information of the UE and the grids is related to at least one of time and scenario.

14. The positioning server according to claim 9, wherein the information acquiring component acquires one of the speed information of the UE through speed reported by the UE, handover and cell reselection times of the UE and historical positioning information of the UE.

15. The positioning server according to claim 14, wherein the speed reported by the UE is one of a current movement speed of the UE and calculated speed according to the historical positioning information of the UE.

16. The positioning server according to claim 9, wherein the pattern data information of the UE comprises signal intensity of a neighboring cell, time advance (TA) information of a serving cell and angle-of-arrival information received by the UE, and the pattern data information of the grids comprises signal intensity of the neighboring cell, TA information of the serving cell and angle-of-arrival information received within the grids.