Patent ID: 7693109
Filing Date: 2010-04-06
Classification: H04L,H04W

Abstract:
1. A method of a Mobile Node (MN) performing a fast handoff from a first Access Router (AR) to a second AR in a mobile network in which there exists an MN, the MN is managed by the first AR, and there exists the second AR with a subnet different from the first AR, comprising the steps of: receiving a Routing Advertisement (RA) message of the second AR from the first AR; generating an IP address to be used in the second AR using the RA message of the second AR if the MN recognizes that it should perform a handoff from the first AR to the second AR; generating an L transmitting/receiving data with a Correspondent Node (CN) using the generated IP address; and changing the generated IP address into a primary IP address from a network layer (Layer