Patent ID: 8335268

Claim:
A signal transmission method using multiple antennas, the signal transmission method comprising: grouping a plurality of subcarriers included in a frequency domain as a plurality of tiles including first and second tiles, each tile being basic resource management units including two or more subcarriers among the plurality of subcarriers; shifting phases of subcarriers included in a first tile by a first phase shifting value, and shifting phases of subcarriers included in a second tile by a second phase shifting value that is different from the first phase shifting value; generating a plurality of signals having different phase shifting values respectively corresponding to the antennas for the respective subcarriers by repeatedly performing the grouping of the subcarriers and the shifting of the phases of subcarriers included in the first tile and the second tile; and multiplexing the plurality of signals to convert them to be time domain signals, and transmitting them through the antennas respectively corresponding to the plurality of signals.