System and method for mobile station authentication using session initiation protocol (SIP)

• US 20030012159A1
• Filed: 07/13/2001
• Published: 01/16/2003
• Est. Priority Date: 07/13/2001
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Vassilovski, Dan, Marshall, Maria I.
• Granted Patent: US 6,845,092 B2
• Time in Patent Office: Days
• US Class Current: 370/335
• CPC Class Codes: H04B 1/707 using direct sequence modulation
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 80/10 adapted for application session management, e.g. SIP [Session Initiation Protocol] connection management H04W76/00; arrangements for session management H04L67/14

Abstract

system and method for transmitting CDMA call set-up parameters including authentication parameters through an IP-based infrastructure to an authenticating entity. A base station encapsulates, in SIP messages, CDMA data from wireless communication devices, with the headers of the messages indicating the presence of the CDMA-specific data in the message body. The SIP messages are routed through the infrastructure to an IS41 gateway, which strips the CDMA-specific data from the SIP messages and sends the necessary data to the authenticating entity for setting up a CDMA call.

Claims

1. A voice over Internet (VOIP) system, comprising:

at least one CDMA access point (CAP) communicating with one or more mobile stations (MS) using a wireless device over-the-air protocol different from Internet protocol (IP), the CAP including;

at least one logic component configured for transforming information from an MS in wireless device protocol to IP protocol, the logic component configured for encapsulating CDMA authentication parameters in IP and sending the information in IP toward a gateway configured for stripping the CDMA authentication parameters therefrom.

2. The system of claim 1, wherein the CAP generates a session initiation protocol (SIP) message containing a header indicating the presence of the authentication parameters in the message.

3. The system of claim 1, wherein the CAP is a base station (BTS).

4. The system of claim 1, wherein the logic component converts over the air (OTA) protocol packets to IP packets.

5. The system of claim 1, further comprising at least one IS41 gateway receiving IP from the CAP and stripping the authentication parameters therefrom, the IS41 gateway sending the authentication parameters to an authenticating entity in a format other than IP.

6. The system of claim 1, wherein the authenticating entity is part of a network.

7. The system of claim 2, wherein the SIP message is an SIP Register message.

8. The system of claim 2, wherein the CDMA authentication parameters include at least one of:

RANDC, AUTHR, and COUNT.

9. The system of claim 2, wherein the header includes at least one CDMA function defined as a service that can be invited to SIP sessions.

10. The system of claim 9, wherein the service includes an SIP agent.

11. A method for communicating information in IP to a wireless device not supporting IP, comprising:

encapsulating CDMA call set-up parameters in at least one SIP message;

indicating in the SIP message that the CDMA call set-up parameters are in the SIP message;

transmitting the SIP message through an IP infrastructure;

receiving the SIP message; and

stripping the CDMA call set-up parameters from the SIP message for use thereof in establishing communication between a mobile station (MS) and a called party.

12. The method of claim 11, further comprising sending the CDMA call set-up parameters in IS41 protocol to an authenticating entity after the stripping act.

13. The method of claim 11, comprising converting over the air (OTA) protocol packets to IP packets.

14. The method of claim 13, comprising converting IP packets to over the air (OTA) protocol packets.

15. The method of claim 11, wherein the SIP message is an SIP Register message.

16. The method of claim 11, wherein the message includes a header including at least one CDMA function defined as a service that can be invited to SIP sessions.

17. The method of claim 16, wherein the service includes an SIP agent.

19. The system of claim 18, wherein the protocol different from IP is IS41.

20. The system of claim 18, wherein the authentication data is encapsulated in SIP messages, each message including a header, at least one header indicating the presence of the authentication data in the message.

21. The system of claim 18, further comprising:

at least one CDMA access point (CAP) communicating with one or more mobile stations (MS) using a wireless device over-the-air protocol different from Internet protocol (IP), the CAP including;

at least one logic component transforming information in wireless device protocol from an MS to IP protocol, the logic component encapsulating CDMA authentication data in IP and sending the information in IP toward the IS41 gateway.

22. The system of claim 21, wherein the CAP is a base station (BTS).

23. The system of claim 21, wherein the logic component converts over the air (OTA) protocol packets to IP packets.

24. The system of claim 23, wherein the logic component converts IP packets to over the air (OTA) protocol packets.

25. The system of claim 20, wherein the SIP message is an SIP Register message.

26. The system of claim 18, wherein the CDMA authentication data include at least one of:

RANDC, AUTHR, and COUNT.

27. The system of claim 20, wherein the header includes at least one CDMA function defined as a service that can be invited to SIP sessions.

28. The system of claim 27, wherein the service includes an SIP agent.

30. The SIP message structure of claim 29, wherein the message structure establishes a SIP Register message.

31. The SIP message structure of claim 29, wherein the CDMA authentication parameters include at least one of:

RANDC, AUTHR, and COUNT.

32. The SIP message structure of claim 29, wherein the header includes at least one CDMA function defined as a service that can be invited to SIP sessions.

33. The SIP message structure of claim 32, wherein the service includes an SIP agent.

35. The system of claim 34, further comprising means for sending the CDMA call set-up parameters in IS41 protocol to an authenticating entity.

36. The system of claim 34, comprising means for converting over the air (OTA) protocol packets to IP packets.

37. The system of claim 36, comprising means for converting IP packets to over the air (OTA) protocol packets.

38. The system of claim 34, wherein the SIP message is an SIP Register message.

39. The system of claim 34, wherein the CDMA parameters include at least one of:

RANDC, AUTHR, and COUNT.

18. A communication system, comprising:

an IP-based infrastructure transmitting information relating to wireless voice transmissions, at least some of the information including non-IP authentication data encapsulated in IP; and

at least one IS41 gateway receiving the information and transmitting the authentication data using a protocol different from IP.

29. A session initiation protocol (SIP) message structure comprising:

at least one message body containing CDMA authentication parameters; and

at least one header defining a media type corresponding to the CDMA authentication parameters.

34. A system for communicating information in IP to a wireless device not supporting IP, comprising:

means for encapsulating CDMA call set-up parameters in at least one SIP message;

means for indicating in the SIP message that the CDMA call set-up parameters are in the SIP message;

means for transmitting the SIP message through an IP infrastructure;

means for receiving the SIP message; and

means for stripping the CDMA call set-up parameters from the SIP message for use thereof in establishing communication between a mobile station (MS) and a called party.

40. An IS-41 gateway, comprising:

means for receiving SIP messages, at least some of which encapsulate CDMA authentication parameters;

means for stripping the CDMA authentication parameters from the SIP messages; and

means for sending the parameters in IS-41 protocol toward an authenticating entity.

41. An IS-41 gateway configured for stripping CDMA authentication parameters from SIP messages and sending the parameters in IS-41 protocol toward an authenticating entity.