Patent ID: 7039430
Filing Date: 2006-05-02
Classification: H04W,Y02D

Abstract:
1. A system for controlling operation modes of a medium access control layer by a mobile subscriber station in a broadband wireless access communication system including the mobile subscriber station and a serving base station providing service to the mobile subscriber station, the system comprising: the mobile subscriber station which mode-transits into an idle mode when there is no data transmission between the serving base station and the mobile subscriber station during a predetermined first time interval in an awake mode, mode-transits into the awake mode and transmits a location update request to a target base station when detecting movement of the mobile subscriber station in the idle mode into another paging zone to which the target base station belongs, which is different from a paging zone to which the serving base station belongs, and performs location update in accordance with a location update response from the target base station, which responds to the location update request; the target base station which, together with a paging controller for performing the paging zones, performs the location update of the mobile subscriber station and transmits the location update response to the mobile subscriber station when the location update request from the mobile subscriber station is detected; and the paging controller for updating the location of the mobile subscriber station correspondingly to the location update operation of the target base station and the mobile subscriber station.