Patent ID: 8929340
Filing Date: 2015-01-06
Classification: H04W

Abstract:
1. A method of performing a zone switch by an advanced mobile station (AMS) configured to operate with an advanced base station (ABS) in a broadband wireless access system, the method comprising: receiving, by the AMS from the ABS via a legacy zone (LZone) of the ABS, a ranging response message containing zone switch information; acquiring, by the AMS, MZone system information for an AMS supporting zone (MZone) of the ABS; and performing, by the AMS, network reentry to the MZone of the ABS by performing downlink synchronization with the MZone of the ABS using the zone switch information, wherein, if the zone switch information includes a parameter of a MZone superframe header (SFH), the AMS acquires the MZone system information from the zone switch information before performing the downlink synchronization with the MZone of the ABS, wherein the zone switch information comprises information indicating a zone switch mode of the AMS, wherein, if the zone switch mode of the AMS is set to mode wherein, if the zone switch mode of the AMS is set to mode