Method and apparatus for accessing a network using remote subscriber identity information

• US 20040204087A1
• Filed: 03/26/2002
• Published: 10/14/2004
• Est. Priority Date: 03/26/2002
• Status: Active Grant

• Current Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Original Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Inventors: Carlsson, Hans
• Granted Patent: US 6,868,282 B2
• Time in Patent Office: Days
• US Class Current: 455/558
• CPC Class Codes: H04L 63/0853 using an additional device, e.g. smartcard, SIM or a different communication terminal cryptographic mechanisms or cryptographic arrangements for entity authentication involving additional secure or trusted devices H04L9/3234
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 12/43 using shared identity modules, e.g. SIM sharing
• CPC Class Codes: H04W 60/00 Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
• CPC Class Codes: H04W 60/06 De-registration or detaching
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 92/18 between terminal devices

Abstract

Method and apparatus for accessing a network using remote subscriber identity information. Subscriber identity information in a memory store within a device such as a mobile terminal can be remotely used by a second independent device. In the case of a GSM terminal, for example, one terminal would be able to utilize the subscriber identity information contained in the subscriber identity module (SIM) of another terminal by establishing a local communication link between the two terminals. Remote subscriber identity information is transferred over the local communication link and the communication terminal, which is using the remote subscriber identity information can register with the network using that information, thus, eliminating the need to transfer the SIM.

Claims

1. In a communication terminal, a method of accessing a network using remote subscriber identity information, the method comprising:

receiving an command to use the remote subscriber identify information;

establishing a local communication link with an independent device containing the remote subscriber identify information;

receiving the remote subscriber identify information from the independent device over the local communication link;

de-registering with the network with local subscriber information; and

registering with the network using the remote subscriber identify information after de-registering with the network with the local subscriber information.

3. The method of claim 1 further comprising, subsequent to registering with the network using the remote subscriber identity information:

receiving a subsequent command to cease using the remote subscriber identity information;

de-registering with the network with the remote subscriber identity information; and

re-registering with the network using the local subscriber identify information.

5. The method of claim 1 further comprising, prior to registering with the network using the remote subscriber identify information:

requesting authentication information from the user; and

receiving authentication information from the user.

6. The method of claim 3 further comprising, prior to registering with the network using the remote subscriber identify information:

requesting authentication information from the user; and

receiving authentication information from the user.

2. (cancelled).

4. (cancelled).

7-37. -37. (cancelled).

38. A communication terminal operable to access a network using remote subscriber identity information, the communications terminal comprising:

means for receiving an command to use the remote subscriber identify information;

means for establishing a local communication link with an independent device containing the remote subscriber identify information;

means for receiving the remote subscriber identify information from the independent device over the local communication link;

means for de-registering with the network with local subscriber information; and

means for registering with the network using the remote subscriber identify information after de-registering with the network with the local subscriber information.

39. The communication terminal of claim 38 further comprising:

means for receiving a command subsequent to registering with the network using the remote subscriber identity information to cease using the remote subscriber identity information;

means for de-registering with the network with the remote subscriber identity information; and

means for re-registering with the network using the local subscriber identify information.

40. The communication terminal of claim 38 further comprising,:

means for requesting authentication information from the user prior to registering with the network using the remote subscriber identify information; and

means for receiving the authentication information from the user.

41. The communication terminal of claim 39 further comprising,:

means for requesting authentication information from the user prior to registering with the network using the remote subscriber identify information; and

means for receiving the authentication information from the user.