Patent ID: 8526527
Filing Date: 2013-09-03
Classification: H04B,H04L

Abstract:
1. A radio communication apparatus comprising: a receiving unit configured to receive first data and second data, which are transmitted from a plurality of antennas for spatial-multiplexing using a plurality of blocks, into which a plurality of consecutive subcarriers in a frequency domain are divided; a calculating unit configured to calculate a channel quality indicator (CQI) value per each of the blocks for each of the first data and the second data; and a transmitting unit configured to transmit the CQI value, wherein said calculating unit calculates a relative CQI value for one of the first data and the second data in a block defined by subcarriers with respect to an absolute CQI value for the other of the first data and the second data in the same block defined by the same subcarriers, and said transmitting unit transmits the absolute CQI value and the relative CQI value.