Patent ID: 7236475
Filing Date: 2007-06-26
Classification: H04W,Y02D

Abstract:
1. A method for facilitating handoffs for a wireless communication device operating in an Internet Protocol (IP) based network and having at least one network interface, comprising: providing a wireless communication system including a plurality of network attachment points; attaching said wireless communication device to a first network attachment point; when said wireless communication device moves from an area served by said first network attachment point to an area served by a second network attachment point, performing a handoff from the first network attachment point to the second network attachment point and based on a successful completion of the handoff, creating an adjacency relation in an adjacency relation database to reflect the proximity between an IP subnet of said first network access point and an IP subnet of said second network access point; using said adjacency relation database to determine other network attachment points said wireless communication device can access from said area served by said second network attachment point.