FIELD: radio engineering, communication.
SUBSTANCE: invention discloses an apparatus which includes a generator for generating a quasi-orthogonal signal stream corresponding to a codeword to be fed back, a plurality of mapping modules for mapping the quasi-orthogonal signal stream to a plurality of packets in the fast feedback channel by using different mapping patterns, and a transmitter for transmitting the quasi-orthogonal signal stream mapped to the plurality of packets.
EFFECT: high efficiency of using resources.
32 cl, 13 dwg
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