Method and apparatus for confirming position of a mobile station

• US 7,359,712 B2
• Filed: 07/11/2002
• Issued: 04/15/2008
• Est. Priority Date: 07/11/2002
• Status: Active Grant

• Current Assignee: Motorola Solutions, Inc.
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Gutowski, Gerald J., Benes, Stanley J.
• Primary Examiner(s): Gesesse; Tilahun
• Application Number:
  US10/193,375
• Publication Number:
  US 20040202139A1
• Time in Patent Office: 2,105 Days
• Field of Search: 455/456.1, 455/456.3, 455/404.3, 455/12.1, 455/13.1, 455/404.2, 455/456.2, 455/456.4, 342/357.01
• US Class Current: 455/456.1
• CPC Class Codes: G01S 5/021 Calibration, monitoring or correction G01S5/0252 takes precedence
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Abstract

A method (400) and an apparatus for confirming the position of a mobile station (180). The mobile station (180) may receive a positioning message including information associated with a position of the mobile station. Based on that information, the mobile station (180) may generate a position parameter associated with the position of the mobile station (180). The mobile station (180) may compare the position parameter and a checkpoint value. Based on the position parameter and the checkpoint value, the mobile station (180) may generate an error value. The mobile station (180) may indicate an error associated with the position of the mobile station if the error value exceeds a predetermined error tolerance.

Claims

1. In a wireless communication system providing communication services, wherein a mobile station reports a position of the mobile station within the communication system, a method for confirming the relative position of the mobile station comprising the steps of:

receiving a positioning message having information associated with the position of the mobile station;

generating a position parameter based on the information associated with the position of the mobile station;

comparing the position parameter and a checkpoint value associated with a checkpoint, wherein the comparing is performed by the mobile station;

generating an error value based on the position parameter and the checkpoint value, wherein the generating is performed by the mobile station; and

indicating an error associated with the position of the mobile station if the error value exceeds a predetermined error tolerance.

2. The method of claim 1, wherein the position message is one of a pseudo-range message and a power strength measurement message.

3. The method of claim 1, wherein the position parameter includes a first position parameter and a second position parameter.

4. The method of claim 1, wherein the position parameter is one of a celestial position parameter and a terrestrial position parameter.

5. The method of claim 1, wherein the position parameter is one of a global positioning system (GPS) value, a forward link trilateration (FLT) value and an amplitude difference angle of arrival (AD-AOA) value.

6. The method of claim 1, wherein the position parameter includes one of a latitude coordinate, a longitude coordinate, and an altitude coordinate.

7. The method of claim 1, wherein the checkpoint value is a mobile station-reported position value.

8. The method of claim 1, wherein the checkpoint value includes one of a latitude coordinate, a longitude coordinate, and an altitude coordinate.

9. The method of claim 1, wherein the wireless communication system operates in accordance with one of a code division multiple access (CDMA) based communication system and a time division multiple access (TDMA) based communication system.

10. In a wireless communication system providing communication services, wherein a mobile station reports a position of the mobile station within the communication system, a method for verifying the position of the mobile station comprising the steps of:

receiving a position message having information associated with the position of the mobile station;

generating a first position parameter associated with the position of the mobile station based on the position message;

comparing the first position parameter and a checkpoint value;

generating a first error value based on the first position parameter and the checkpoint value;

generating a second position parameter associated with the position of the mobile station based on the position message if the first error value exceeds a predetermined error tolerance;

comparing the second position parameter and the checkpoint value;

generating a second error value based on the second position parameter and the checkpoint value; and

indicating an error associated with the position of the mobile station if the second error value exceeds the predetermined error tolerance, and

wherein the mobile station compares the first position parameter, generates the second position parameter, compares the second position parameter and generates the second error value.

11. The method of claim 10, wherein the position message is one of a pseudo-range message and a power strength measurement message.

12. The method of claim 10, wherein the first position parameter is a celestial position parameter and the second position parameter is a terrestrial position parameter.

13. The method of claim 10, wherein the checkpoint value is a mobile station-reported position value.

14. The method of claim 10, wherein the checkpoint value includes one of a latitude coordinate, a longitude coordinate, and an altitude coordinate.

15. The method of claim 10, wherein the wireless communication system operates in accordance with one of a code division multiple access (CDMA) based communication system and a time division multiple access (TDMA) based communication system.

16. In a wireless communication system providing communication services, wherein a mobile station reports a registration including a position of the mobile station within the communication system, a mobile station that verifies its position, the mobile station comprising:

a receiving unit adapted to receive a position message having information associated with the position of the mobile station;

a controller having a processor and a memory operatively coupled to the processor, the controller being programmed to generate a position parameter based on the information associated with the position of the mobile station,

the controller being programmed to generate an error value based on the position parameter and a checkpoint value; and

an indicator coupled to the processor, the indicator being operable to provide an indication of an error associated with the position of the mobile station if the error value exceeds a predetermined error tolerance.

17. The mobile station of claim 16, wherein the position message is one of a pseudo-range message and a power strength measurement message.

18. The mobile station of claim 16, wherein the position parameter includes a first position parameter and a second position parameter.

19. The mobile station of claim 16, wherein the position parameter is one of a celestial position parameter and a terrestrial position parameter.

20. The mobile station of claim 16, wherein the position parameter is associated with a global positioning system (GPS) value, a forward link trilateration (FLT) value and an amplitude difference angle of arrival (AD-AOA) value.

21. The mobile station of claim 16, wherein the position parameter includes one of a latitude coordinate, a longitude coordinate, and an altitude coordinate.

22. The mobile station of claim 16, wherein the checkpoint value is a mobile station-reported position value.

23. The mobile station of claim 16, wherein the checkpoint value includes a latitude coordinate, a longitude coordinate, and an altitude coordinate.

24. The mobile station of claim 16 operates in accordance with one of a code division multiple access (CDMA) based communication system and a time division multiple access (TDMA) based communication system.

25. In a wireless communication system providing communication services for a communication cell, wherein a mobile station reports a registration including a position of the mobile station within the communication system, and wherein a processor of the mobile station operates in accordance to a computer program embodied on a computer-readable medium of the mobile station for verifying the position of the mobile station, the computer program comprising:

a first routine that directs the processor to receive a position message having information associated with the position of the mobile station;

a second routine that directs the processor to generate a position parameter based on the information associated with the position of the mobile station;

a third routine that directs the processor to compare the position parameter and a checkpoint value associated with a checkpoint;

a fourth routine that directs the processor to generate an error value based on the position parameter and the checkpoint value; and

a fifth routine that directs the processor to indicate an error associated with the position of the mobile station if the error value exceeds a predetermined error tolerance.

26. The computer program of claim 25, wherein the position message is one of a pseudo-range message and a power strength measurement message.

27. The computer program of claim 25, wherein the position parameter includes a first position parameter and a second position parameter.

28. The computer program of claim 25, wherein the position parameter is one of a celestial position parameter and a terrestrial position parameter.

29. The computer program of claim 25, wherein the position parameter is associated with a global positioning system (GPS) value, a forward link trilateration (FLT) value and an amplitude difference angle of arrival (AD-AOA) value.

30. The computer program of claim 25, wherein the checkpoint value is a mobile station-reported position value.

31. The computer program of claim 25, wherein the checkpoint value includes a latitude coordinate, a longitude coordinate, and an altitude coordinate.

32. The computer program of claim 25 operates in accordance with one of a code division multiple access (CDMA) based communication system and a time division multiple access (TDMA) based communication system.

33. The computer program of claim 25, wherein the medium comprises one of paper, a programmable gate array, application specific integrated circuit, erasable programmable read only memory, read only memory, random access memory, magnetic media, and optical media.