ASSISTED SATELLITE SIGNAL BASED POSITIONING

• US 20100013705A1
• Filed: 01/23/2007
• Published: 01/21/2010
• Est. Priority Date: 09/21/2006
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Corporation
• Inventors: Wirola, Lauri, Syrjarinne, Jari
• Granted Patent: US 8,624,778 B2
• Time in Patent Office: Days
• US Class Current: 342/357.630
• CPC Class Codes: G01S 19/05 providing aiding data

Abstract

A set of parameters for a plurality of satellites belonging to at least two different satellite systems is assembled. Further, a definition of a data structure is provided, the data structure including at least one section for parameters for a plurality of satellites belonging to at least two different satellite systems.

Claims

1. A method comprising:

assembling a set of parameters for a plurality of satellites belonging to at least two different satellite systems;

including in said set of parameters a common part for at least one parameter, wherein said common part is valid for each of said satellites belonging to at least one of said at least two different satellite systems and wherein said common part comprises a week count; and

including in said set of parameters for each of said satellites of said at least two different satellite systems a respective individual part for at least one parameter, wherein said individual part is valid only for a respective one of said satellites and wherein said individual part comprises at least one of;

almanac data for said respective satellite and non-immediate information for said respective satellite.

2. The method according to claim 1, further comprising including in said set of parameters at least one of:

a satellite index for each satellite of said plurality of satellites; and

an identifier of an employed data structure for each satellite of said plurality of satellites.

3. The method according to claim 1, further comprising including in said set of parameters a common part for at least one parameter, wherein said common part is valid for each of said satellites belonging to at least two different satellite systems.

6. The method according to claim 1, wherein said common part, which is valid for each of said satellites belonging to at least one of said at least one satellite systems, comprises in addition at least one of:

a time-of-week; and

an issue-of-data indication; and

a day count.

9. The method according claim 1, further comprising providing said set of parameters as assistance data for a satellite signal based positioning.

25. A computer program product, in which a computer program code is stored in a computer readable medium, said computer program code configured to realize the method of claim 1 when executed by a processor.

34. The computer program product according to claim 25, wherein said computer program code is configured to include in said common part, which is valid for each of said satellites belonging to at least one of said at least one satellite systems, in addition at least one of:

a time-of-week;

an issue-of-data indication; and

a day count.

4-5. -5. (canceled)

7-8. -8. (canceled)

10. (canceled)

11. An apparatus comprising a processor,

said processor being configured to assemble a set of parameters for a plurality of satellites belonging to at least two different satellite systems;

said processor being configured to include for said assembling in said set of parameters a common part for at least one parameter, wherein said common part is valid for each of said satellites belonging to at least one of said at least two different satellite systems and wherein said common part comprises a week count; and

said processor being configured to include for said assembling in said set of parameters for each of said satellites of said at least two different satellite systems a respective individual part for at least one parameter, wherein said individual part is valid only for a respective one of said satellites and wherein said individual part comprises at least one of;

almanac data for said respective satellite and non-immediate information for said respective satellite.

12. The apparatus according to claim 11, wherein said processor is configured to include in said set of parameters at least one of:

a satellite index for each satellite of said plurality of satellites; and

an identifier of an employed data structure for each satellite of said plurality of satellites.

13. The apparatus according to claim 11, wherein said processor is configured to include in said set of parameters a common part for at least one parameter, wherein said common part is valid for each of said satellites belonging to at least two different satellite systems.

14. The apparatus according to claim 11, wherein said week count is valid for each of said satellites belonging to at least two different satellite systems.

15. The apparatus according to claim 11, wherein said processor is configured to include in said set of parameters a common part for at least one parameter, wherein said common part is valid only for each of said satellites belonging to a respective one of said at least one satellite system.

16. The apparatus according to claim 11, wherein said processor is configured to include in said common part, which is valid for each of said satellites belonging to at least one of said at least one satellite systems, in addition at least one of:

a time-of-week;

an issue-of-data indication; and

a day count.

18. The apparatus according to claim 11, wherein said processor is configured to include in an individual part, which is valid only for a respective one of said satellites of at least two different satellite systems, at least one of:

a day count; and

a time of day.

19. The apparatus according to claim 11, comprising a processor which is configured to provide said set of parameters as assistance data for a satellite signal based positioning.

20. The apparatus according to claim 19, wherein said processor is configured to provide said assistance data for transmission via a wireless link to a wireless terminal, to which a satellite signal receiver is associated.

21. The apparatus according to claim 11, further comprising at least one of:

a wireless communication component configured to transmit information via a wireless link; and

a satellite signal receiver.

23. A system comprising:

an apparatus according to claim 11; and

an apparatus configured to use an assembled set of parameters in satellite based positioning calculations.

17. (canceled)

22. (canceled)

24. (canceled)

26-28. -28. (canceled)

29. A data structure including:

at least one section for parameters for a plurality of satellites belonging to at least two different satellite systems;

said at least one section including a sub-section for a common part for at least one parameter, wherein said common part is valid for each of said satellites belonging to at least one of said at least two different satellite systems and wherein said common part comprises a week count; and

said at least one section including for each of said satellites of said at least two different satellite systems a sub-section for a respective individual part for at least one parameter, wherein said individual part is valid only for a respective one of said satellites and wherein said individual part comprises at least one of;

almanac data for said respective satellite and non-immediate information for said respective satellite.

30-33. -33. (canceled)