Patent ID: 7450909
Filing Date: 2008-11-11
Classification: H04W,Y02D

Abstract:
1. A method for transmitting and receiving a signal by a mobile station in a broadband wireless access communication system, the method comprising the steps of: receiving, from a base station, a downlink MAP message including a first change count of a downlink channel description; and comparing the first change count of the downlink channel description with a stored change count of the downlink channel description received prior to the first change count of the downlink channel description; measuring a carrier to interference and noise ratio (CINR) of a downlink signal from the base station; and transmitting, to the base station, a header message in order to request bandwidth and change of a downlink burst profile, wherein the header message includes bandwidth request information, the measured CINR, and the compared result indicating whether the first change count of the downlink channel description is equal to the stored change count of the downlink channel description.