UTILIZATION OF THE INTERNET PROTOCOL TO FACILITATE COMMUNICATION INVOLVING MOBILE DEVICES

• US 20100189041A1
• Filed: 03/31/2010
• Published: 07/29/2010
• Est. Priority Date: 07/06/1999
• Status: Abandoned Application

• Current Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Morris, Martin, Kumar, Rajiv, Pham, Hiep, Nguyen, Lyn
• Application Number:
  US12/751,730
• Publication Number:
  US 20100189041A1
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04L 61/5084 Providing for device mobility network addressing or numbering for mobility support in wireless networks H04W8/26; mobile IP H04W80/04
• CPC Class Codes: H04W 52/38 TPC being performed in particular situations
• CPC Class Codes: H04W 8/02 Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A data communication system capable of forwarding IP-addressed data to devices as such devices move among networks having different IP addresses is dislcosed herein. The system includes first and second networks containing first and second pluralities of nodes. At least one of the first plurality of nodes is adapted to receive data transmissions from an external IP-based network. Upon joining the first network, this device is assigned an IP address which remains with it irrespective of whether it moves beyond the range of the first network. When this device roams into the vicinity of the second network, data addressed to the device which is received at the first network is forwarded via at least one node of the second network to the roaming device.

Claims

1. A data communication system comprising:

A first network including a first plurality of nodes, said first network having a first network address;

A second network including a second plurality of nodes, said second network having a second network address; and

Means for forwarding, from said first network to said second network, message information received at said first network and addressed to a first node of said first plurality of nodes when said first node establishes communication with said second network

2-8. -8. (canceled)