RADIO COMMUNICATION SYSTEM, RECEPTION DEVICE, AND TRANSMISSION DEVICE

摘要

PROBLEM TO BE SOLVED: To suppress deterioration of reception characteristics even in the state that an error is generated in propagation path information, in a system using interference reduction.

SOLUTION: A radio communication system comprises: a plurality of transmission devices; and a reception device receiving at least one desired signal and a plurality of non-desired signals transmitted by the transmission devices. At least one transmission device of the plurality of transmission devices transmits signals which are obtained individually by precoding so that equivalent propagation path vectors of the plurality of non-desired signals of the reception device are orthogonal to a reception weight vector used by the reception device. The reception device estimates the equivalent propagation path vectors of the plurality of non-desired signals, calculates the reception weight vector by using the estimated equivalent propagation path vectors of the plurality of non-desired signals, and extracts the desired signal by multiplying reception signals received in a plurality of resources which are to be units of the precoding by the calculated reception weight vector.

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