Reception quality measurement results of respective channels which have been outputted from a reception quality measuring section 308 are inputted to a selected channel determining section 341 and a channel quality information generating section 342. The number of selected channels M which has been previously defined or the number of selected channels M which has been outputted from a control information obtaining section 314 is inputted to the selected channel determining section 341 and a channel identification information generating section 343. The channel identification information generating section 343 selects one of a first representation format for representation with M channel numbers indicating the respective selected channels, and a second representation format for representation representing whether or not each of all the channels is included in the selected channels, based on the number of selected channels M, and uses the selected representation format to generate and output channel identification information.