Patent ID: 8576788
Filing Date: 2013-11-05
Classification: H04L,H04W

Abstract:
1. A method for a mobile station to perform carrier management procedure with a base station supporting multiple carriers, the method comprising: receiving a carrier management command message from the base station, the carrier management command message including an action code for carrier management and a polling bit in a MAC Control Extended Header (MCEH) indicating whether an acknowledgement message is required; transmitting the acknowledgement message in response to the carrier management command message to the base station when the carrier management command message is successfully received and the polling bit is set to 1; and transmitting a carrier management indication message, corresponding to the action code included in the carrier management command message, to the base station, wherein the action code indicates a primary carrier change or a secondary carrier management, and wherein, if the action code indicates the primary carrier change, the acknowledgement message in response to the carrier management command message is transmitted on a serving primary carrier of the base station, and the carrier management indication message is transmitted on a target primary carrier of the base station.