Patent ID: 7542449
Filing Date: 2009-06-02
Classification: H04W

Abstract:
1. A method, comprising: when an access point transfers a service context to another access point during a hand-over of a mobile node in a wireless mesh network, setting transfer boundaries according to relative positions of access points in the wireless mesh network with respect to the mobile node, and determining access point types of access points based upon the set transfer boundaries, with a first type of access points including an access point initially connected to the mobile station and access points arranged at the set transfer boundaries and a second type of access points including access points arranged between the set transfer boundaries; and transferring the service context to the access points arranged in a moving direction of the mobile node based upon context transfer policies according to the determined access point types prior to the hand-over of the mobile node in response to movement of the mobile station, and during the transfer of the service context to the access points arranged in a direction of the movement direction of the mobile node based upon the context transfer policies conforming to the determined access point types, the access point initially connected to the mobile station: searching a client list table for data corresponding to the mobile node, and transferring the service context to access points spaced at one hop from the access point initially connected to the mobile station when the client list table does not contain data corresponding to the mobile node, and transfer the service context to at least one access point arranged in the direction of the movement of the mobile node according to the type of the at least one connected access point based upon the client list table containing data of the mobile node.