Radio transmitter apparatus, radio receiver apparatus, and wireless communication system

摘要

A wireless communication system capable of obtaining diversity gain without fail even when the distribution of the reception qualities is large. radio transmitter apparatus ( 100 ) of the wireless communication system, a repetition/constellation pattern ratio deciding part ( 113 ) adjusts the number of constellations to be used by a modulating part ( 102 ) and also adjusts the number of replicas of a repetition part ( 103 ) in such a manner that the product of the number of constellation patterns to be used by the modulating part ( 102 ), that is, the number of outbound symbols to be generated and the number of outbound symbols as replicated by the repetition part ( 103 ) becomes equal to the number of outbound symbols generated from a single transmission data notified from a control information extracting part ( 112 ).