Positioning method and device for drive test

• US 9,581,680 B2
• Filed: 09/30/2013
• Issued: 02/28/2017
• Est. Priority Date: 12/26/2012
• Status: Active Grant

• Current Assignee: ZTE Corporation
• Original Assignee: ZTE Corporation
• Inventors: Zhu, Zhenming, Chen, Qianhua, Tan, Yaoting
• Primary Examiner(s): Patel, Ajit
• Assistant Examiner(s): PEREZ, JULIO R
• Application Number:
  US14/655,669
• Publication Number:
  US 20150338501A1
• Time in Patent Office: 1,247 Days
• Field of Search: 4554561-4563, 4554565-4566
• US Class Current: 1/1
• CPC Class Codes: G01S 5/02 using radio waves using satellite radio beacon systems for determining position G01S19/00
• CPC Class Codes: G01S 5/0295 Proximity-based methods, e.g. position inferred from reception of particular signals
• CPC Class Codes: G01S 5/04 Position of source determined by a plurality of spaced direction-finders
• CPC Class Codes: G01S 5/06 Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements G01S5/12 takes precedence
• CPC Class Codes: H04W 24/06 Testing, supervising or monitoring using simulated traffic
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 4/42 for mass transport vehicles, e.g. buses, trains or aircraft

Abstract

Provided is a positioning method for a drive test, and the method includes: fixed parking sampling points of a testing vehicle in drive test data are determined; location information of the fixed parking sampling points of the testing vehicle is determined according to serving cell identification information of the fixed parking sampling points of the testing vehicle in the drive test data and information of a route matching the drive test data; and location information of a moving sampling point between the fixed parking sampling points of the testing vehicle in the drive test data is determined according to the information of the route. Further provided is a positioning device for a drive test, and by means of the embodiments of the present disclosure, positioning of sampling points in drive test data can be implemented efficiently and accurately, thus having low cost for implementation.

Claims

1. A positioning method for a drive test, applied to positioning in a drive test for rail transit, the method comprising:

determining fixed parking sampling points of a testing vehicle in drive test data, wherein the determining fixed parking sampling points of a testing vehicle in drive test data comprising determining sampling points, where radio delays have an amplitude of variation smaller than a pre-set threshold, among consecutive sampling points having same serving cell identification information in drive test data, as a fixed parking sampling points of a testing vehicle, wherein the drive test data further include radio signal delays of the sampling points, and the radio signal delays are a measurement of time taken by radio signals transmitted from a serving cell base station to the testing vehicle, and reflects the distance between the testing vehicle and the serving cell base station;

determining location information of the fixed parking sampling points of the testing vehicle according to serving cell identification information of the fixed parking sampling points of the testing vehicle in the drive test data and information of a route matching the drive test data; and

determining location information of a moving sampling point between the fixed parking sampling points of the testing vehicle in the drive test data according to the information of the route,

wherein the determining location information of the fixed parking sampling points of the testing vehicle in the drive test data according to the information of the route comprises;

matching a serving cell identification sequence of fixed parking points in the information of the route with a serving cell identification sequence of the fixed parking sampling points of the testing vehicle in the drive test data, and determining location information of the fixed parking points in the information of the route matching the fixed parking sampling points of the testing vehicle in the drive test data, as the location information of the fixed parking sampling points of the testing vehicle in the drive test data.

2. The method according to claim 1, further comprising:

before the determining fixed parking sampling points of a testing vehicle in drive test data,

determining the route matching the drive test data according to the serving cell identification information in the drive test data.

3. The method according to claim 2, wherein the determining the route matching the drive test data according to the serving cell identification information in the drive test data comprises:

determining a route, where a serving cell identification sequence of fixed parking points matches a serving cell identification sequence in the drive test data, as the route matching the drive test data.

4. The method according to claim 3, wherein the determining location information of the fixed parking sampling points of the testing vehicle in the drive test data according to the information of the route comprises:

matching a serving cell identification sequence of fixed parking points in the information of the route with a serving cell identification sequence of the fixed parking sampling points of the testing vehicle in the drive test data, and determining location information of the fixed parking points in the information of the route matching the fixed parking sampling points of the testing vehicle in the drive test data, as the location information of the fixed parking sampling points of the testing vehicle in the drive test data.

5. The method according to claim 2, wherein the determining location information of the fixed parking sampling points of the testing vehicle in the drive test data according to the information of the route comprises:

matching a serving cell identification sequence of fixed parking points in the information of the route with a serving cell identification sequence of the fixed parking sampling points of the testing vehicle in the drive test data, and determining location information of the fixed parking points in the information of the route matching the fixed parking sampling points of the testing vehicle in the drive test data, as the location information of the fixed parking sampling points of the testing vehicle in the drive test data.

6. The method according to claim 1, wherein the determining location information of a moving sampling point between the fixed parking sampling points of the testing vehicle in the drive test data according to the information of the route comprises:

mapping the moving sampling point between the fixed parking sampling points of the testing vehicle to a route segment of the route between fixed parking points matching the fixed parking sampling points of the testing vehicle, and determining the location information of the moving sampling point according to location information of the route segment in the information of the route.

7. The method according to claim 6, wherein the mapping the moving sampling point between the fixed parking sampling points of the testing vehicle to a route segment of the route between fixed parking points matching the fixed parking sampling points of the testing vehicle comprises:

mapping, in an equally-spaced way, the moving sampling point between the fixed parking sampling points of the testing vehicle to the route segment of the route between the fixed parking points matching the fixed parking sampling points of the testing vehicle;

or

mapping, in proportion, the moving sampling point between the fixed parking sampling points of the testing vehicle to the route segment of the route between the fixed parking points matching the fixed parking sampling points of the testing vehicle.

8. A positioning device for a drive test, applied to positioning in a drive test for rail transit, the positioning device for a drive test comprising:

a memory storing executable instructions; and

a processor configured to be capable of executing the stored executable instructions to perform steps comprising;

determining fixed parking sampling points of a testing vehicle in drive test data, wherein the determining fixed parking sampling points of a testing vehicle in drive test data comprising determining sampling points, where radio delays have an amplitude of variation smaller than a pre-set threshold, among consecutive sampling points having same serving cell identification information in drive test data, as a fixed parking sampling points of a testing vehicle, wherein the drive test data further include radio signal delays of the sampling points, and the radio signal delays are a measurement of time taken by radio signals transmitted from a serving cell base station to the testing vehicle, and reflects the distance between the testing vehicle and the serving cell base station;

determining location information of the fixed parking sampling points of the testing vehicle according to serving cell identification information of the fixed parking sampling points of the testing vehicle in the drive test data and information of a route matching the drive test data; and

determining location information of a moving sampling point between the fixed parking sampling points of the testing vehicle in the drive test data according to the information of the route,

wherein the processor is further configured to be capable of executing the stored executable instructions to perform steps further comprising;

matching a serving cell identification sequence of fixed parking points in the information of the route with a serving cell identification sequence of the fixed parking sampling points of the testing vehicle in the drive test data, and determining location information of the fixed parking points in the information of the route matching the fixed parking sampling points of the testing vehicle in the drive test data, as the location information of the fixed parking sampling points of the testing vehicle in the drive test data.

9. The positioning device for a drive test according to claim 8, wherein the processor is further configured to be capable of executing the stored executable instructions to perform steps further comprising:

determining the route matching the drive test data according to the serving cell identification information in the drive test data.

10. The positioning device for a drive test according to claim 9, wherein the processor is further configured to be capable of executing the stored executable instructions to perform steps further comprising:

determining a route, where a serving cell identification sequence of fixed parking points matches a serving cell identification sequence in the drive test data, as the route matching the drive test data.

11. The positioning device for a drive test according to claim 10, wherein the processor is further configured to be capable of executing the stored executable instructions to perform steps further comprising:

matching a serving cell identification sequence of fixed parking points in the information of the route with a serving cell identification sequence of the fixed parking sampling points of the testing vehicle in the drive test data, and determining location information of the fixed parking points in the information of the route matching the fixed parking sampling points of the testing vehicle in the drive test data, as the location information of the fixed parking sampling points of the testing vehicle in the drive test data.

12. The positioning device for a drive test according to claim 9, wherein the processor is further configured to be capable of executing the stored executable instructions to perform steps further comprising:

matching a serving cell identification sequence of fixed parking points in the information of the route with a serving cell identification sequence of the fixed parking sampling points of the testing vehicle in the drive test data, and determining location information of the fixed parking points in the information of the route matching the fixed parking sampling points of the testing vehicle in the drive test data, as the location information of the fixed parking sampling points of the testing vehicle in the drive test data.

13. The positioning device for a drive test according to claim 8, wherein the processor is further configured to be capable of executing the stored executable instructions to perform steps further comprising:

mapping the moving sampling point between the fixed parking sampling points of the testing vehicle to a route segment of the route between fixed parking points matching the fixed parking sampling points of the testing vehicle, and determining the location information of the moving sampling point according to location information of the route segment in the information of the route.

14. The positioning device for a drive test according to claim 13, wherein the processor is further configured to be capable of executing the stored executable instructions to perform steps further comprising:

mapping, in an equally-spaced way, the moving sampling point between the fixed parking sampling points of the testing vehicle to the route segment of the route between the fixed parking points matching the fixed parking sampling points of the testing vehicle;

or

mapping, in proportion, the moving sampling point between the fixed parking sampling points of the testing vehicle to the route segment of the route between the fixed parking points matching the fixed parking sampling points of the testing vehicle.