Patent ID: 8068833
Filing Date: 2011-11-29
Classification: H04W

Abstract:
1. A method comprising: receiving, in a server element, access router information relating to one or more access routers, wherein the one or more access routers are separate from the server element, and wherein the access router information comprises geographical information relating to the one or more access routers and mapping information comprising a mapping of link layer identifiers of access points to internet protocol addresses of the one or more access routers; receiving, in the server element, information identifying an access router serving a mobile node and reachability information including a link layer identifier of a target access point that is within reach of the mobile node for internet protocol handover to a target access router via the target access point; determining, in the server element, an internet protocol address of the target access router, wherein the address of the target access router is determined based on a mapping of the link layer identifier of the target access point to the internet protocol address of the target access router; causing transmission of the determined internet protocol address of the target access router from the server element to the mobile node; causing application context information of the mobile node to be registered at the server element prior to changing the serving access router of the mobile node; and using the context information in the server element to invoke application specific actions during the handover of the mobile node.