BASE STATION APPARATUS, TERMINAL APPARATUS, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a communication system that transmits a plurality of reference signals for transmission path state measurement in which adaptive control is effectively carried out, mainly in feedback control and precoding control.

SOLUTION: A first transmission path state and a second transmission path state are measured based on a reference signal for first transmission path state measurement and a reference signal for second transmission path state measurement different from the reference signal for first transmission path state measurement. A plurality of precoding information is generated as feedback information based on the first transmission path state and the second transmission path state.

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