Patent ID: 8175187

Claim:
A wireless communication apparatus for performing communication using a first communication scheme in which data is transmitted using amplitude shift keying and a second communication scheme in which transmission suppression signals for suppressing transmission of signal from other communication apparatuses are used, wherein a frequency range used for communication according to the first communication scheme is at least partially overlapped with a frequency range used for communication according to the second communication scheme, the wireless communication apparatus comprising: a first signal generation unit configured to generate a first transmission data; a modulation unit configured to determine timings and signal lengths of high signals and low signals, wherein the high signals and the low signals are obtained by modulating the first transmission data by amplitude shift keying according to the first communication scheme; a second signal generation unit configured to generate the transmission suppression signals having signal lengths substantially equal to the signal lengths of the high signals; and a transmission unit configured to transmit the transmission suppression signals according to the timings of the high signals.