FIELD: radio engineering, communication.
SUBSTANCE: invention relates to a mobile communication system in which communication is carried out based on a multiple input multiple output (MIMO) codebook. An aspect of the invention is aimed at generating a codebook for open-loop-multiple input multiple output (OL-MIMO) from a codebook for closed-loop-MIMO (CL-MIMO). A transmission/reception apparatus and method in a codebook-based multiple-antenna system is provided. In a transmission method in a codebook-based MIMO system, feedback information is received from a receiver. A downlink OL single user-MIMO (OL SU-MIMO) subset is defined in the main codebook based on feedback information. At least one data stream is transmitted at least through one antenna using the defined downlink OL SU-MIMO subset.
EFFECT: improved information transmission.
44 cl, 29 tbl, 5 dwg
