Patent ID: 7406129

Claim:
A wireless communication apparatus comprising: n (where n is an integer equal to or greater than 2) antennas, each receiving a data signal modulated by an OFDM modulation method and transmitted in one of n carrier frequency bands; n frequency conversion circuits that convert the data signals received respectively via the n antennas into baseband signals having an identical frequency; n Fourier transform circuits that, based on the plurality of baseband signals obtained respectively from the n frequency conversion circuits, generate parallel data containing data segments each relating to one of m (where m is an integer equal to or greater than 2) subcarriers; n data correction circuits that, based on the parallel data fed respectively from the n Fourier transform circuits, check reception condition of each of the m subcarriers in the respective carrier frequency bands and accordingly correct the parallel data; a data selection circuit that receives the n sets of parallel data corrected by the n data correction circuits and that then, for each of the m subcarriers, recognizes the carrier frequency band in which reception condition is best and that then selects the data in the thus recognized carrier frequency band so as to thereby newly generate parallel data containing m data segments; and a demodulation circuit that converts the parallel data newly generated by the data selection circuit into serial data, wherein the parallel data contained in the data signals transmitted respectively in the plurality of carrier frequency bands contains identical data, and the demodulation circuit demodulates parallel data selected from n+1 sets of parallel data including the parallel data corrected by the n data correction circuits and the parallel data newly generated by the data selection circuit.