Granted Patent B2

US 7,996,009 · App. 10/116,023 · Granted Aug 9, 2011

Abstract

Claims (36)

1. A method of authenticating an unlicensed wireless communication subscriber device to utilize an unlicensed wireless communication system based on security information supplied by a licensed wireless communication system, wherein the unlicensed wireless communication system comprises a networked computer for communicatively coupling the unlicensed wireless communication system and the licensed wireless communication system, the method comprising:

sending licensed wireless communication system security information from the networked computer to the unlicensed wireless communication subscriber device;

receiving an authentication result at the networked computer from said unlicensed wireless communication subscriber device, the authentication result produced by the subscriber device based at least partly on the licensed wireless communication system security information;

comparing, at the networked computer, said authentication result with an authentication value received from the licensed wireless communication system to selectively produce an authentication command to allow the subscriber device to access the unlicensed wireless communication system; and

enabling unlicensed wireless communications between said subscriber device and the unlicensed wireless communication system in response to said authentication command;

wherein said unlicensed wireless communication subscriber device is for communicating with the licensed wireless communication system using licensed wireless frequencies and for communicating with said unlicensed wireless communication system using unlicensed wireless frequencies.

2. The method of claim 1 further comprising, prior to said sending, receiving a licensed wireless authentication request from said unlicensed wireless communication subscriber device at said networked computer.

3. The method of claim 2 , wherein said request is received at said networked computer through an unlicensed wireless communication base station, wherein said networked computer is operative to emulate a mobile switching center.

4. The method of claim 2 , wherein said licensed wireless authentication request is received as an Internet Protocol packet.

5. The method of claim 2 , further comprising routing said licensed wireless authentication request from said networked computer to a mobile switching center.

6. The method of claim 5 further comprising receiving said licensed wireless communication system security information at said networked computer from said mobile switching center.

7. The method of claim 1 , wherein said licensed wireless communication system security information includes a random number.

8. The method of claim 6 , wherein said licensed wireless communication system security information passes from said unlicensed wireless communication base station to said unlicensed wireless communication subscriber device prior to said receiving the authentication result.

9. The method of claim 1 , wherein said authentication result is produced by said unlicensed wireless communication subscriber device using said licensed wireless communication system security information and a stored key.

10. The method of claim 1 , wherein said comparing results in said authentication command when said authentication value matches said authentication result produced by said unlicensed wireless communication subscriber device.

11. The method of claim 1 further comprising utilizing said authentication result when said unlicensed wireless communication subscriber device leaves and later returns to an unlicensed wireless communication service region.

12. A method of authenticating an unlicensed wireless communication subscriber device to utilize an unlicensed wireless communication system based on security information supplied by a licensed wireless communication system, wherein the unlicensed wireless communication system comprises a networked computer for communicatively coupling the unlicensed wireless communication system and the licensed wireless communication system, the method comprising:

identifying when the unlicensed wireless communication subscriber device is within a service region of an unlicensed wireless communication base station;

emulating, with said networked computer, operations of a licensed wireless communication system mobile switching center in response to said identifying;

receiving licensed wireless communication system security information from the licensed wireless communication system at said networked computer;

sending said licensed wireless communication system security information to said subscriber device;

receiving an authentication result from the subscriber device in response to said emulating, the authentication result produced by the subscriber device using the licensed wireless communication system security information; and

comparing said authentication result with an authentication value received from said licensed wireless communication system to selectively enable, based on said comparison, unlicensed wireless communication between said unlicensed wireless communication subscriber device and said unlicensed wireless communication system;

wherein said unlicensed wireless communication subscriber device is for communicating with the licensed wireless communication system using licensed wireless frequencies and for communicating with said unlicensed wireless communication system using unlicensed wireless frequencies.

13. The method of claim 12 , wherein identifying includes receiving a licensed wireless authentication request at the networked computer from said unlicensed wireless communication subscriber device through said unlicensed wireless communication base station.

14. The method of claim 13 , wherein said emulating includes the networked computer reacting to the licensed wireless authentication request as though the networked computer were a mobile switching center.

15. The method of claim 13 , wherein said licensed wireless authentication request is received at said networked computer as an Internet Protocol packet.

16. The method of claim 13 further comprising routing said licensed wireless authentication request from said networked computer to a mobile switching center.

17. The method of claim 16 further comprising sending, from said networked computer to said unlicensed wireless communication base station, licensed wireless communication system security information routed from said mobile switching center.

18. The method of claim 12 , wherein said licensed wireless communication system security information includes a random number.

19. The method of claim 12 , wherein said licensed wireless communication system security information passes from said unlicensed wireless communication base station to said unlicensed wireless communication subscriber device.

20. The method of claim 12 , wherein said authentication result is produced by said unlicensed wireless communication subscriber device using said licensed wireless communication system security information and a stored key.

21. The method of claim 12 , wherein the networked computer produces an authentication command to enable said unlicensed wireless communication subscriber device to utilize the unlicensed wireless communication system when the authentication value matches said authentication result produced by said unlicensed wireless communication subscriber device.

22. The method of claim 21 further comprising:

storing the authentication value at the networked computer; and

utilizing said stored authentication value to authenticate the subscriber device when said unlicensed wireless communication subscriber device returns to said service region.

Assignments (12)