System and method for efficiently populating an access point database

• US 20100208711A1
• Filed: 02/13/2009
• Published: 08/19/2010
• Est. Priority Date: 02/13/2009
• Status: Abandoned Application

• Current Assignee: Sony Corporation (Sony Group Corp.), Sony Electronics Inc. (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.), Sony Electronics Inc. (Sony Group Corp.)
• Inventors: Zhou, Yi, Georgis, Nikolaos, Carpio, Fredrik
• Application Number:
  US12/378,314
• Publication Number:
  US 20100208711A1
• Time in Patent Office: Days
• US Class Current: 370/338
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management
• CPC Class Codes: H04W 64/003 locating network equipment
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A system and method for populating an access point database includes a network of access points that are implemented to transmit access point signals by utilizing a wireless broadcasting procedure. One or more mobile devices are then configured to wirelessly receive and analyze the access point signals to produce access point scan data corresponding to the access points. A location server receives and analyzes the access point scan data to determine specific access point locations for the access points. The location server then utilizes the access point locations to populate the access point database.

Claims

1. A system for populating an access point database, comprising:

access points that are configured to transmit access point signals by utilizing a wireless broadcasting procedure;

mobile devices that wirelessly receive and analyze said access point signals to produce access point scan data corresponding to said access points; and

a location server that receives said access point scan data, said location server analyzing said access point scan data to determine access point locations of said access points, said location server utilizing said access point locations to populate said access point database.

2. The system of claim 1 wherein said access point database is utilized by said mobile devices to perform device location procedures with reference to said access point locations in said access point database.

3. The system of claim 1 wherein said access points are implemented as WiFi hotspots in a wireless electronic network.

4. The system of claim 1 wherein said mobile devices include at least one personal computer device.

5. The system of claim 1 wherein said access point scan data includes access points identifiers and access point signal strengths for said access points.

6. The system of claim 1 wherein said mobile devices automatically produce said access point scan data without assistance from device users.

7. The system of claim 1 wherein said mobile devices use respective scan controllers to produce said access point scan data.

8. The system of claim 1 wherein said location server determines said access point locations by performing triangulation procedures that are based upon said access point scan data.

9. The system of claim 1 wherein said location server determines said access point locations by constructing a statistical model of said access points based upon said access point scan data.

10. The system of claim 1 wherein physical locations of said mobile devices are determined by utilizing wireless transmission techniques.

11. The system of claim 10 wherein said wireless transmission techniques include accessing information from a global positioning system.

12. The system of claim 10 wherein said mobile devices transmit said physical locations to said location server.

13. The system of claim 12 wherein said mobile devices automatically and continuously scan said access point signals to produce and store said access point scan data.

14. The system of claim 12 wherein one of said mobile devices scans said access point signals from a series of different locations to produce and store multiple sets of said access point scan data.

15. The system of claim 13 wherein said mobile devices transmit said access point scan data to said location server by utilizing wireless transmission techniques.

16. The system of claim 15 wherein said location server gradually builds a statistical model of said access point locations from said access point scan data.

17. The system of claim 16 wherein said location server utilizes said access point locations from said statistical model to populate and update said access point database.

18. The system of claim 17 wherein said location server sends updated versions of said access point database to said mobile devices.

19. The system of claim 18 wherein said mobile devices utilize said updated versions of said access point database for performing device location procedures.

20. The system of claim 1 wherein said mobile devices and said location server cooperate on a continuous basis to populate and update said access point database.

21. A method for populating an access point database, comprising:

transmitting access point signals from access points by utilizing a wireless broadcasting procedure;

utilizing mobile devices to wirelessly receive and analyze said access point signals to produce access point scan data corresponding to said access points; and

receiving said access point scan data with a location server that analyzes said access point scan data to determine access point locations of said access points, said location server utilizing said access point locations to populate said access point database.