Patent ID: 8228973
Filing Date: 2012-07-24
Classification: H04W

Abstract:
1. A communication system, in which a mobile station measures a communication channel quality of each of a plurality of bands obtained by dividing a communication band of a downlink and transmits a result of the measurement to a base station via an uplink, wherein the mobile station comprises: means for representing a communication channel quality of a first band by a first code, representing a communication channel quality of a second band by a second code by using the communication channel quality of said first band as a reference, and representing a communication channel quality of a third band by a third code by using the communication channel quality of said second band as a reference, wherein a plurality of step sizes are decided, and wherein said mobile station further comprises means for selecting a common step size so that communication channel quality of said first to third bands become closer to the measured communication channel quality represented by said first to third codes according to a predetermined standard, wherein at least said first, second and third codes and information of said common step size are transmitted to said base station.