Patent ID: 8369291
Filing Date: 2013-02-05
Classification: H04W,Y02D

Abstract:
1. A method for controlling communication with mobile stations in a wireless network, wherein the network comprises a plurality of access points via which the mobile stations are connected to the network and wherein the mobile stations are in a power save mode, comprising: implementing at least one functional entity in the network, the at least one functional entity controlling at least one part of a functionality required in the power save mode, and one or more functional entities are separated from the plurality of access points, thus allowing controlling a traffic indication from the network in a single or multiple IP subnets for mobile stations in the power save mode, wherein the functional entity is implemented on an access router, a mobility agent or a paging agent, the functional entity maps between IP addresses of the mobile stations and assigned network association IDs; and assigning from the functional entity to each mobile station a network association ID which is valid in a part of the network or in whole of the network to identify mobile stations beyond a scope of a single access point and IP subnet, irrespective of the mobile station's corresponding access point, wherein a configuration of the network association ID is maintained whenever the mobile station moves into a region of a new access point.