Adaptive transmission diversity apparatus and adaptive transmission diversity method

摘要

An adaptive transmission diversity apparatus of the present invention employs a spread spectrum system, detects radiation patterns of direct and indirect waves, which have arrived in a time-shifted manner, by means of reception radiation pattern controllers, and operates a transmission radiation pattern controller in accordance with a transmission radiation pattern which is determined by selecting a transmission radiation pattern patterns obtained by the reception radiation pattern controllers or combining those radiation patterns. This can ensure a higher transmission performance. <IMAGE>