Geographic redundancy determination for time based location information in a wireless radio network

• US 9,398,556 B2
• Filed: 10/21/2014
• Issued: 07/19/2016
• Est. Priority Date: 06/15/2012
• Status: Active Grant

• Current Assignee: AT&T Mobility II LLC (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.), AT&T Mobility II LLC (AT&T, Inc.)
• Inventors: Meredith, Sheldon Kent, Fix, Jeremy, Chen, Jie
• Primary Examiner(s): RAMPURIA, SHARAD K
• Application Number:
  US14/520,287
• Publication Number:
  US 20150038169A1
• Time in Patent Office: 637 Days
• Field of Search: 4554561-457, 4554221-425, 455 6711- 6716
• US Class Current: 1/1
• CPC Class Codes: G01S 5/0226 Transmitters
• CPC Class Codes: G01S 5/02525 Gathering the radio frequency fingerprints
• CPC Class Codes: H04W 4/023 using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
• CPC Class Codes: H04W 4/025 using location based information parameters
• CPC Class Codes: H04W 56/005 compensating for timing error by adjustment in the receiver
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Abstract

Determining levels of geographic redundancy among radios of a wireless radio network is disclosed. The level of geographic redundancy for a radio can affect the determination of location information for a user equipment (UE) on the wireless radio network. The disclosed subject matter can be employed in conjunction with timed fingerprint location (TFL) technologies to facilitate selection of radios employed in determining time values for TFL location determination. Levels of geographic redundancy can be employed to rank or order radios of a wireless radio network so as to reduce the likelihood of using geographically redundant radios in location determination. Further, rules can be selected to adjust threshold values and equations employed in determining the levels of geographic redundancy. Moreover, rules can be selected to apply boundary conditions to reduce the number of determinations formed for a set of radios of the wireless radio network.

Claims

1. A system, comprising:

a processor; and

a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising;

receiving geographic information relating to a set of radios of a wireless network;

determining a level of geographic redundancy for the set of radios based on the geographic information;

selecting a subset of the set of radios based on the level of geographic redundancy being determined to have satisfied a rule related to a selectable threshold redundancy level;

determining timed fingerprint location information for the subset of the set of radios; and

storing the timed fingerprint location information to facilitate a location determination based on the stored timed fingerprint location information.

2. The system of claim 1, wherein the determining the level comprises determining the level of geographic redundancy according to a binary determination.

3. The system of claim 1, wherein the determining the level comprises determining the level of geographic redundancy as a function of at least three levels of geographic redundancy.

4. The system of claim 1, wherein the determining the timed fingerprint location information for the subset reduces a number of timed fingerprint location values relative to determining the timed fingerprint information for the set of radios.

5. The system of claim 1, wherein the operations further comprise updating the selectable threshold redundancy level.

6. The system of claim 5, wherein the updating is in response to determining an addition of a radio to the set of radios.

7. The system of claim 5, wherein the updating is in response to determining a removal of a radio from the set of radios.

8. A method, comprising:

receiving, by a system comprising at least one processor, geographic information relating to a set of radios of a wireless network;

determining, by the system, a level of geographic redundancy for radios of the set of radios based on the geographic information;

selecting, by the system, a redundancy subset of the set of radios based on the level of geographic redundancy being determined to satisfy a rule related to a selectable threshold redundancy level;

enabling, by the system, access to information identifying the radios of the redundancy subset to facilitate determining, by a timed fingerprint location information device, timed fingerprint location information for the radios of the redundancy subset to facilitate determining a user equipment location based on the timed fingerprint location information.

9. The method of claim 8, wherein the determining the level comprises determining the level of geographic redundancy as a function of levels of geographic redundancy.

10. The method of claim 9, wherein the levels comprise three levels of geographic redundancy.

11. The method of claim 8, wherein the enabling the access to the information identifying the radios of the redundancy subset to facilitate the determining of the timed fingerprint location information for the radios of the redundancy subset results in a reduction of timed fingerprint location values as compared to determining the timed fingerprint location information for the set of radios.

12. The method of claim 8, further comprising updating the selectable threshold redundancy level.

13. The method of claim 12, wherein the updating is based on determining an addition of a radio to the set of radios.

14. The method of claim 12, wherein the updating is based on determining a removal of a radio from the set of radios.

15. A non-transitory computer-readable medium storing executable instructions that, in response to execution, cause a system comprising a processor to perform operations, comprising:

receiving geographic information relating to a set of radios of a wireless network;

determining a level of geographic redundancy for the set of radios based on the geographic information;

selecting a subset of the set of radios based on determining that the level of geographic redundancy satisfies a rule related to a selectable threshold redundancy level; and

setting an indicator related to excluding, from a determination of timed fingerprint location information, radios of the set of radios that are not included in the subset of the set of radios.

16. The non-transitory computer-readable medium of claim 15, wherein the determining the level comprises determining the level of geographic redundancy as a function of two levels of geographic redundancy.

17. The non-transitory computer-readable medium of claim 15, wherein the determining the level comprises determining the level of geographic redundancy as a function of at least three levels of geographic redundancy.

18. The non-transitory computer-readable medium of claim 15, wherein the operations further comprise updating the selectable threshold redundancy level.

19. The non-transitory computer-readable medium of claim 18, wherein the updating is in response to determining an addition of a radio to the set of radios.

20. The non-transitory computer-readable medium of claim 18, wherein the updating is in response to determining a removal of a radio from the set of radios.