Patent ID: 8121179

Claim:
A wireless relay device for relaying wireless signals from a transmitting station to a receiving station, comprising: a reception antenna which receives from the transmitting station a wireless signal that contains first and second wireless signal components in which a first data signal and a second data signal are respectively allocated to a carrier at a first radio frequency and a carrier at a second radio frequency adjacent to the first radio frequency along the frequency axis; a first transmission antenna; a second transmission antenna; and an encoder which generates first and second spectrum-reversed signals, the power spectra of which are symmetric respectively to those of the first and second data signals along the frequency axis, and allocates a plurality of signals among the first data signal, the second data signal, the first and second spectrum-reversed signals, and polarity-inverted signals of the first and second spectrum-reversed signals to carriers at adjacent radio frequencies along the frequency axis so that space frequency block coding is applied using the first transmission antenna and the second transmission antenna.