FIELD: radio engineering, communication.
SUBSTANCE: invention relates to mobile communication and particularly to a method, an apparatus and a system for configuring a codebook. The technical result is achieved through a method which includes the transmitting side selecting a limited subset of codewords and informing the receiving side on the limited subset of codewords, wherein the limited subset of codewords contains part or all codewords in a first codebook and/or a second codebook; and the receiving side selecting an optimum precoded word from the limited subset of codewords and informing the receiving side on the index of the optimum precoded word.
EFFECT: easier computation performed by the receiving side when selecting a codeword and fewer cases when the receiving side erroneously selects a codeword.
9 cl, 2 dwg, 8 tbl
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