TRANSMISSION APPARATUS, TRANSMISSION METHOD, SIGNAL GENERATION APPARATUS, AND SIGNAL GENERATION METHOD

摘要

PROBLEM TO BE SOLVED: To excellent reception quality while suppressing a decrease in data transmission efficiency.

SOLUTION: A communication terminal 5500 includes a receiver, a feedback information generator 5502 and a transmitter 5505. The receiver receives a first modulated signal and a second modulated signal transmitted from a plurality of antennas of communicating partners in the same timing, the first modulated signal being modulated in accordance with a first mapping method of a predetermined modulation system and the second modulated signal being modulated using a mapping pattern of either a second mapping method, including at least one or more mapping patterns, different from the first mapping method or the first mapping method. The feedback information generator 5502 generates as feedback information 5503 information regarding the mapping method to be used for the second modulated signal from the signals received from the communicating partners. The transmitter 5505 transmits the feedback information 5503 to the communicating partners.

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