Patent ID: 8040868
Filing Date: 2011-10-18
Classification: H04L

Abstract:
1. A communication system for measuring communication channel qualities of one or more partial bands of a communication band in a downlink channel that is divided into a plurality of partial bands in a mobile station and sending the measurements to a base station as communication channel quality information via an uplink channel, wherein said mobile station comprises: a section for representing the measured communication channel qualities of the partial bands by relative value information in a frequency direction and sending the relative value information to said base station as said communication channel quality information at a first timing, the relative value information in the frequency direction representing a difference in the communication channel qualities of the partial bands at the first timing; and a section for representing the measured communication channel qualities of the partial bands by relative value information in a time direction and sending the relative value information to said base station as said communication channel quality information at a second timing, the relative value information in the time direction representing a difference between the communication channel qualities of the partial bands at the second timing and the communication channel qualities of the partial bands at a time prior to the second timing.