WIRELESS TRANSMISSION SYSTEM AND WIRELESS TRANSMITTING METHOD, AND WIRELESS STATION AND TRANSMITTING STATION USED IN THE SAME

摘要

A wireless transmission system is provided with a feature in which a combination of a plurality of symbol waveforms brings about the maximum path diversity effect even in the case that the number of the most effective branches is limited to a small number. A transmission timing control unit (23) determines transmission start timing to be timing delayed by a prescribed delay amount from standard timing. A modulating unit (21) uses one from a plurality of symbol waveform candidates to modulate a signal in accordance with a modulation system in which a symbol waveform once demodulated on a receiving side exhibits anti-multiple path characteristics and its phase transition is a changing waveform, and transmits the same at transmission start timing. The prescribed delay amount is such magnitude that the number of receiving timing at which a receiving station (12) receives the signal per symbol waveform is plural and not larger than the number of the maximum effective branches, and that a difference between receiving timing is not less than a prescribed delay resolution and not larger than the upper limit of a prescribed delay.