SIGNAL GENERATION METHOD AND SIGNAL GENERATING DEVICE

摘要

PROBLEM TO BE SOLVED: To improve reception quality in environment in which a direct wave is dominant, in a transmission method for simultaneously transmitting a plurality of modulation signals from a plurality of antennas.SOLUTION: A transmission method transmits a first modulation signal and a second modulation signal simultaneously at the same frequency. Both signals are precoded by using a fixed precoding matrix to transmit the signals by regularly changing at least one of phases of the first modulated signal or the second modulated signal, whereby data reception quality is improved at a receiving device.SELECTED DRAWING: Figure 6