WLAN device positioning

• US 7,113,794 B2
• Filed: 08/15/2002
• Issued: 09/26/2006
• Est. Priority Date: 08/15/2002
• Status: Active Grant

• Current Assignee: RPX Corporation
• Original Assignee: Siemens Communications Incorporated (Siemens AG)
• Inventors: Annamalai, Magesh
• Primary Examiner(s): BEAMER, TEMICA M
• Application Number:
  US10/219,776
• Publication Number:
  US 20040203869A1
• Time in Patent Office: 1,503 Days
• Field of Search: 455/456.1, 455/456.2, 455/456.3, 455/456.6
• US Class Current: 455/456.1
• CPC Class Codes: G01S 19/05 providing aiding data
• CPC Class Codes: G01S 19/09 providing processing capability normally carried out by the receiver
• CPC Class Codes: G01S 19/42 Determining position
• CPC Class Codes: H04W 12/08 Access security
• 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 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/14 Backbone network devices

Abstract

A system for positioning a wireless LAN device includes a client device for transmitting a positioning request, the positioning request identifying a wireless LAN device, a location server for receiving the request, and a backbone network for requesting a position from the wireless LAN device and receiving position information from the wireless LAN device, wherein the backbone network transmits the position information to the location server, and wherein the location server determines positioning data based on the position information and the request, and transmits the positioning data to the client device.

Claims

1. A method for positioning a wireless LAN device, comprising:

receiving, by a location server a request for positioning of a wireless LAN device from a client device;

transmitting the request to the wireless LAN device from the location server via a backbone network;

receiving position information from the backbone network, the position information generated, in response to the request, at least in part by a GPS-based device integrated with the wireless LAN device;

generating positioning data based on the position information by the location server; and

transmitting the positioning data to the client.

2. A method according to claim 1, wherein the step of transmitting the request to the wireless LAN device via the backbone network further comprises:

determining that the backbone network is associated with the wireless LAN device.

3. A method according to claim 1, wherein the step of generating positioning data based on the position information comprises:

generating positioning data based on the position information and on the request.

4. A method according to claim 3, wherein the request identifies a format and wherein the step of generating positioning data comprises:

converting the position information to the format.

5. A method according to claim 1, wherein the integrated device is an assisted GPS device.

6. A method according to claim 5, further comprising:

transmitting assisted GPS data to the wireless LAN device.

7. A computer-readable medium storing processor-executable process steps to position a wireless LAN device, the process steps comprising:

a step to receive, by a location server, a request for positioning of a wireless LAN device from a client device;

a step to transmit the request to the wireless LAN device via a backbone network;

a step to receive position information from the backbone network, the position information generated, in response to the request, at least in part by a GPS-based device integrated with the wireless LAN device;

a step to generate positioning data based on the position information by the location server; and

a step to transmit the positioning data to the client device.

8. A medium according to claim 7, wherein the step of transmitting the request to the wireless LAN device via the backbone network further comprises:

a step to determine that the backbone network is associated with the wireless LAN device.

9. A medium according to claim 7, wherein the request identifies a format and wherein the step of generating positioning data based on the position information comprises:

a step to convert the position information to the format.

10. A medium according to claim 7, wherein the integrated device is an assisted GPS device, the process steps further comprising:

a step to transmit assisted GPS data to the wireless LAN device.

11. A device for positioning a wireless LAN device, comprising:

at least one memory storing processor-executable process steps;

at least one processor in communication with the at least one memory and operative in conjunction with the stored process steps to;

receive, by a location server, a request for positioning a wireless LAN device from a client device;

transmit the request to the wireless LAN device via a backbone network;

receive position information from the backbone network, the position information generated, in response to the request, at least in part by a GPS-based device integrated with the wireless LAN device;

generate positioning data based on the position information by the location server; and

transmit the positioning data to the client device.

12. A system for positioning a wireless LAN device, comprising:

a client device for transmitting a positioning request, the positioning request identifying a wireless LAN device;

a location server for receiving the request; and

a backbone network for transmitting the request from the location server to the wireless LAN device and receiving position information from the wireless LAN device, said position information generated, in response to the request, at least in part by a GPS-based device integrated with the wireless LAN device,

wherein the backbone network transmits the position information to the location server, and

wherein the location server determines positioning data based on the position information and the request, and transmits the positioning data to the client device.

13. A system according to claim 12, wherein the positioning request comprises a quality of service and a position format.

14. A system according to claim 13, wherein the backbone network requests the position from the wireless LAN device by transmitting the quality of service to the wireless LAN device.

15. A system according to claim 13, wherein the location server determines the positioning data by converting the position information to the position format.

16. A system according to claim 12, wherein the location server confirms an authorization of the client device based at least on the request.

17. A system according to claim 12, wherein the backbone network determines whether permission to receive the position information from the wireless LAN device exists, and

wherein if permission does not exist, the backbone network does not receive position information from the wireless LAN device.

18. A system according to claim 12, wherein the position information comprises a position, errors associated with the position, and a timestamp.

19. A system according to claim 12, wherein the wireless LAN device comprises an assisted GPS system.