Patent ID: 8160087

Claim:
A transmitting apparatus transmitting data to a receiving apparatus in a communication system where a plurality of system bandwidths are set, said transmitting apparatus comprising: a transmitting unit configured to transmit a pilot signal to the receiving apparatus; and a receiving unit configured to receive a subband CQI for a subband which is a set of a plurality of contiguous resource blocks, each of which is comprised of a plurality of consecutive subcarriers in a frequency domain, and a wideband CQI for a entire system bandwidth, the subband CQI and the wideband CQI being calculated based on the pilot signal using a relationship of a CQI which represents a channel quality and which corresponds to a transport block size of the data in the receiving apparatus; wherein the subband CQI and the wideband CQI are calculated using the same relationship, and said receiving unit receives the wideband CQI with a longer period than a period with which the subband CQI is received.