Methods and apparatuses for use in determining that a mobile station is at one or more particular indoor regions

1. A method comprising, at a mobile station:

receiving preliminary positioning assistance data for one or more indoor regions determined to be at or nearby to an estimated location of said mobile station;

transmitting a request for positioning assistance data for a first one of said one or more indoor regions, wherein said transmitting said request is in response to a determination that said mobile station is in said first one of said one or more indoor regions based, at least in part, on a signal characteristic measurement for a wireless signal received by said mobile station from a first transmitter identified in at least a portion of said preliminary positioning assistance data

receiving positioning assistance data for said first one of said one or more indoor regions in response to said request for positioning assistance data, said positioning assistance data comprising: encoded metadata corresponding to at least one of an electronic map for said first one of said one or more indoor regions; an access point locator for said first one of said one or more indoor regions; or both; and

providing at least a portion of said positioning assistance data to: a positioning function; a navigation function; a location based service function; or a combination thereof.

2. The method as recited in claim 1 , wherein said preliminary positioning assistance data comprises at least a portion of an access point locator for said first one of said one or more indoor regions.

3. The method as recited in claim 1 , and further comprising, at said mobile station, transmitting a request for said preliminary positioning assistance data.

4. The method as recited in claim 3 , wherein said request for said preliminary positioning assistance data is indicative of said estimated location of said mobile station.

5. The method as recited in claim 1 , and further comprising, at said mobile station:

obtaining a subsequent estimated location of said mobile station within said first one of said one or more indoor regions determined based, at least in part, on at least one of: said preliminary positioning assistance data, or said positioning assistance data.

6. The method as recited in claim 5 , wherein said subsequent estimated location is determined based, at least in part, on an estimated range between said mobile station and said first transmitter or a second transmitter.

7. The method as recited in claim 1 , wherein said encoded metadata comprises: a connectivity graph; a radio signal heatmap; a probability heatmap; or a combination thereof.

8. An apparatus for use in a mobile station, the apparatus comprising:

means for receiving preliminary positioning assistance data for one or more indoor regions determined to be at or nearby to an estimated location of said mobile station;

means for transmitting a request for positioning assistance data for a first one of said one or more indoor regions in response to a determination that said mobile station is in said first one of said one or more indoor regions based, at least in part, on a signal characteristic measurement for a wireless signal received by said mobile station from a first transmitter identified in at least a portion of said preliminary positioning assistance data;

means for receiving positioning assistance data for said first one of said one or more indoor regions in response to said request for positioning assistance data, said positioning assistance data comprising: encoded metadata corresponding to at least one of an electronic map for said first one of said one or more indoor regions; an access point locator for said first one of said one or more indoor regions; or both; and

means for providing at least a portion of said positioning assistance data to: a positioning function; a navigation function; a location based service function; or a combination thereof.

9. The apparatus as recited in claim 8 , wherein said preliminary positioning assistance data comprises at least a portion of an access point locator for said first one of said one or more indoor regions.

10. The apparatus as recited in claim 8 , and further comprising means for transmitting a request for said preliminary positioning assistance data said request for said preliminary positioning assistance data being indicative of said estimated location of said mobile station.

11. The apparatus as recited in claim 8 , and further comprising:

means for obtaining a subsequent estimated location of said mobile station within said first one of said one or more indoor regions determined based, at least in part, on at least one of: said preliminary positioning assistance data, or said positioning assistance data.

12. The apparatus as recited in claim 8 , wherein said encoded metadata comprises: a connectivity graph; a radio signal heatmap; a probability heatmap; or a combination thereof.

13. A mobile station comprising:

a network interface; and

one or more processing units configured to:

obtain, via said network interface, preliminary positioning assistance data for one or more indoor regions determined to be at or nearby to an estimated location of said mobile station;

transmit, via said network interface, a request for positioning assistance data for a first one of said one or more indoor regions in response to a determination that said mobile station is in said first one of said one or more indoor regions based, at least in part, on a signal characteristic measurement for a wireless signal received by said mobile station from a first transmitter identified in at least a portion of said preliminary positioning assistance data;

obtain, via said network interface, positioning assistance data for said first one of said one or more indoor regions in response to said request for positioning assistance data, said positioning assistance data comprising: encoded metadata corresponding to at least one of an electronic map for said first one of said one or more indoor regions; an access point locator for said first one of said one or more indoor regions; or both; and

provide access to at least a portion of said positioning assistance data for: a positioning function; a navigation function; a location based service function; or a combination thereof.

14. The mobile station as recited in claim 13 , wherein said preliminary positioning assistance data comprises at least a portion of an access point locator for said first one of said one or more indoor regions.

15. The mobile station as recited in claim 13 , wherein said one or more processing units are further configured to:

initiate transmission, via said network processing unit, of a request for said preliminary positioning assistance data.

16. The mobile station as recited in claim 15 , wherein said request for said preliminary positioning assistance data is indicative of said estimated location of said mobile station.

17. The mobile station as recited in claim 13 , wherein said one or more processing units are further configured to:

obtain a subsequent estimated location of said mobile station within said first one of said one or more indoor regions determined based, at least in part, on at least one of: said preliminary positioning assistance data, or said positioning assistance data.

18. The mobile station as recited in claim 17 , wherein said subsequent estimated location is determined based, at least in part, on an estimated range between said mobile station and said first transmitter or a second transmitter.

19. The mobile station as recited in claim 13 , wherein said encoded metadata comprises: a connectivity graph; a radio signal heatmap; a probability heatmap; or a combination thereof.

20. A non-transitory computer readable medium having stored therein computer implementable instructions that are executable by a processing device of a mobile station to:

receive preliminary positioning assistance data for one or more indoor regions determined to be at or nearby to an estimated location of said mobile station;

transmit a request for positioning assistance data for a first one of said one or more indoor regions in response to a determination that said mobile station is in a first one of said one or more indoor regions based, at least in part, on a signal characteristic measurement for a wireless signal received by said mobile station from a first transmitter identified in at least a portion of said preliminary positioning assistance data;

receive positioning assistance data for said first one of said one or more indoor regions in response to said request for positioning assistance data, said positioning assistance data comprising: encoded metadata corresponding to at least one of an electronic map for said first one of said one or more indoor regions; an access point locator for said first one of said one or more indoor regions; or both; and

provide at least a portion of said positioning assistance data to: a positioning function; a navigation function; a location based service function; or a combination thereof.

21. The computer readable medium as recited in claim 20 , wherein said preliminary positioning assistance data comprises at least a portion of an access point locator for said first one of said one or more indoor regions.

22. The computer readable medium as recited in claim 20 , said computer implementable instructions being further executable by said processing device of said mobile station to:

initiate transmission of a request for said preliminary positioning assistance data.

23. The computer readable medium as recited in claim 22 , wherein said request for said preliminary positioning assistance data is indicative of said estimated location of said mobile station.

24. The computer readable medium as recited in claim 20 , said computer implementable instructions being further executable by said processing device of said mobile station to:

obtain a subsequent estimated location of said mobile station within said first one of said one or more indoor regions determined based, at least in part, on at least one of: said preliminary positioning assistance data, or said positioning assistance data.

25. The computer readable medium as recited in claim 24 , wherein said subsequent estimated location is determined based, at least in part, on an estimated range between said mobile station and said first transmitter or a second transmitter.

26. The computer readable medium as recited in claim 20 , wherein said encoded metadata comprises: a connectivity graph; a radio signal heatmap; a probability heatmap; or a combination thereof.