METHOD FOR REPETITIVE TRANSMISSION USING A PLURALITY OF CARRIER

摘要

A repeated transmission method using plural carrier waves is provided to improve a frequency diversity gain by enhancing a frequency selectivity property of a signal reception unit. Plural cyclic delays, which are applied to plural carrier waves, are provided. A cyclic delay is performed based on a repetition number for data symbols, which are to be transmitted to at least one receiver side. The cyclic-delayed data symbols are transmitted by using the plural carrier waves. The transmitting step sequentially transmits the cyclic-delayed data symbols, when a NACK(Negative ACKnowledgement) signal is received from the receiver side. The transmitting step uses one of plural antennas.