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METHOD FOR TRANMITTING FEEDBACK INFORMATION IN MULTI INPUT MULTI OUT PUT SYSTEM BASED ON CODEBOOK AND A METHOD FOR TRANSMITTING PRECODING INFORMATION IN MULTI INPUT MULTI OUTPUT SYSTEM USING CODEBOOK- BASES PRECODING SCHEME
METHOD FOR TRANMITTING FEEDBACK INFORMATION IN MULTI INPUT MULTI OUT PUT SYSTEM BASED ON CODEBOOK AND A METHOD FOR TRANSMITTING PRECODING INFORMATION IN MULTI INPUT MULTI OUTPUT SYSTEM USING CODEBOOK- BASES PRECODING SCHEME
A method for transmitting feedback information in a codebook-based multiple-input multiple-output (MIMO) system is disclosed. To transmit the feedback information, a signal is received to discern channel characteristics of the received signal, and a codebook is updated using an extended matrix including a plurality of vector components and using previous feedback information. Feedback information is selected for transmission from the updated codebook in consideration of the channel characteristics of the received signal.
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