Patent ID: 8155219

Claim:
A wireless communication apparatus comprising: a signal generation unit for generating transmit signals; a converter unit for converting the transmit signals; a peak detector unit for detecting a transmit signal with a signal amplitude larger than a specified value from among the converted transmit signals, and generating a distortion component for setting the signal amplitude of the detected transmit signal to within a specified value; a receive signal processor unit for performing analog-to-digital conversion of the receive signal received from the antenna; a channel quality acquisition unit for acquiring channel quality information from signals output from the receive signal processor unit; a weight calculation unit for calculating the weight of a peak suppression signal to add to the transmit signal based on the channel quality information; a peak suppression signal conversion unit for converting the distortion signal generated by the peak detector into a peak suppression signal according to the weight calculated by the weight calculation unit; a signal adder unit for adding the peak suppression signal output from the conversion unit, to the transmit signal output from the signal generation unit; and a transmit signal processor unit to convert the transmit signal added with the peak suppression signal in the converter unit, and perform analog-to-digital conversion of the transmit signal to which the converted peak suppression signal was added, and output this signal to the antenna.