METHOD OF BEAMFORING AND SYSTEM USING MULTIPLE ANTENNAS USING THEREOF

摘要

PURPOSE: A beam forming method and a multi-antenna system using the same are provided to reduce a setup time for transmission of a weight vector without loss of performance gain. CONSTITUTION: A transmitter(100) comprises an inverted FFT(Fast Fourier Transform) unit(101) which implements inverted FFT of a signal to be transmitted. A D/A and mixer(102) converts the transformed signal into the analogue signal and mixes the converted signal. A beam forming unit(103) multiplies the mixed signal by a transmission weight vector. An antenna array(104) delivers a signal to a receiver(200) through a channel.