SIGNAL TRANSMISSION USING MULTIPLE ANTENNAS

摘要

A radio communication transmitter (EM) comprises at least two antennas (AE1, AE2) for transmitting a signal containing encoded bits which are converted into distributed symbols according to subcarriers and time intervals. The transmitter encompasses a signal splitter (REP) for splitting all the symbols of the signal into as many separate subsets (SEi) of signal symbols as the transmitter has antennas, each subset being allocated to one of the antennas and the combined subsets amounting to all the symbols of the signal. The symbols are split into at least two subsets during a time interval of the signal or for a subcarrier. The antennas each synchronously transmit the subsets of symbols. The subsets of symbols can comprise a number of substantially identical symbols to reduce a difference between peaks of strength and the average strength of the signal transmitted by each antenna.