Patent ID: 8527008

Claim:
A wireless communication apparatus having a plurality of antennas comprising: a reception channel coefficient calculation unit for calculating a reception channel coefficient of each of the plurality of antennas; a transmission channel coefficient calculation unit for calculating a transmission channel coefficient of each of the plurality of antennas by extrapolation, based on a variation of the reception channel coefficient calculated by the reception channel coefficient calculation unit; an absolute value calculation unit for calculating an absolute value of the transmission channel coefficient calculated by the transmission channel coefficient calculation unit; a threshold calculation unit for calculating a threshold based on the reception channel coefficient calculated by the reception channel coefficient calculation unit; a comparison unit for comparing the absolute value calculated by the absolute value calculation unit and the threshold calculated by the threshold calculation unit; and a correction unit, when the absolute value is greater than the threshold as a result of a comparison by the comparison unit, for correcting the transmission channel coefficient calculated by the transmission channel coefficient calculation unit, so as to match the absolute value to the threshold.