MOBILE UNIT HAVING INTERNET PROTOCOL FUNCTIONALITY

• US 20100099454A1
• Filed: 12/23/2009
• Published: 04/22/2010
• Est. Priority Date: 05/22/2002
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Reddy, Gautam G.
• Granted Patent: US 8,364,198 B2
• Time in Patent Office: Days
• US Class Current: 455/552.1
• CPC Class Codes: H04B 1/3816 Mechanical arrangements for accommodating identification devices, e.g. cards or chips; with connectors for programming identification devices
• CPC Class Codes: H04L 2101/654 International mobile subscriber identity [IMSI] numbers
• CPC Class Codes: H04L 61/00 Network arrangements, protocols or services for addressing or naming
• CPC Class Codes: H04L 61/35 involving non-standard use of addresses for implementing network functionalities, e.g. coding subscription information within the address or functional addressing, i.e. assigning an address to a function
• CPC Class Codes: H04L 61/5007 Internet protocol [IP] addresses
• CPC Class Codes: H04M 1/0254 comprising one or a plurality of mechanically detachable modules
• CPC Class Codes: H04M 1/2535 adapted for voice communication over an Internet Protocol [IP] network Voice over Internet Protocol (VoIP) network equipment and services H04M7/006; implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] H04L69/16
• CPC Class Codes: H04M 1/72403 with means for local support of applications that increase the functionality
• CPC Class Codes: H04W 36/1446 wherein at least one of the networks is unlicensed
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

A mobile unit includes a handset and a removable storage module having a unique storage module identity, for storing information specific to a user, including an Internet Protocol (IP) address. Additional information regarding a Public Land Mobile Network (PLMN) and International Mobile Subscriber Identity (IMSI) which uniquely identifies the subscriber is also stored in the removable storage module. Upon successfully camping on a cell of a mobile network, the IP address is forwarded to an IP-based network capable of communicating with the mobile unit. In an alternate embodiment, the mobile unit has multi-network capabilities which allow it to communicate with an IP-based network and a cellular network at the same time. In another embodiment, existing cellular network services for the mobile unit having multi-network capabilities are routed through the IP-based network.

Claims

1. In a mobile unit, a method for communicating between the mobile unit and a plurality of networks, the method comprising:

storing in a removable storage medium a plurality of user-specific information elements such that each information element is usable for establishing a connection with a different type of network; and

establishing a first connection with a first network using a first information element; and

establishing a second connection with a second network using a second information element.

2. The method of claim 1 wherein the first connection is established using an internet protocol (IP) network and an IP address.

3. The method of claim 2 wherein the first connection is established with a wireless local area network (WLAN).

4. The method of claim 3 wherein the second connection is established with a cellular network which is connected using an international mobile subscriber identity (IMSI).

5. The method of claim 1 further comprising dropping the first connection after the second connection is established.

6. The method of claim 5 wherein the mobile unit continues to receive a service initially received via the first connection via the second connection after the first connection is dropped.

7. The method of claim 1 wherein the second connection is established through the first connection.

8. A mobile unit for use in conjunction with multiple communication networks comprising:

a removable storage module configured to store a plurality of user-specific information elements, wherein each information element is usable for establishing a connection with a different type of network; and

a processor configured to establish a first connection with a first network using a first information element stored in the storage module, and a second connection with a second network using a second information element stored in the storage module.

9. The mobile unit of claim 8 wherein the removable storage module is configured to store an internet protocol (IP) address of the mobile unit.

10. The mobile unit of claim 9 wherein the removable storage module is configured to store an international mobile subscriber identity (IMSI) information.

11. The mobile unit of claim 8 wherein the removable storage module is configured as one of a subscriber identity module (SIM), a universal mobile telecommunication system (UMTS) subscriber identity module (USIM), or a smart card.

12. The mobile unit of claim 8 wherein the processor is configured to establish one connection with an IP network using an IP address, and another connection with a cellular network using an international mobile subscriber identity (IMSI).

13. The mobile unit of claim 8, wherein the processor is configured to drop the first connection after the second connection is established.

14. The mobile unit of claim 13 wherein the processor is configured to continue to receive service initially received via a second connection after a first connection is dropped.

15. The mobile unit of claim 8 wherein the processor is configured to establish the second connection through the first connection.