Abstract
A method for transmitting and receiving a codebook subset restriction bitmap is provided. The Codebook Subset Restriction (CSR) bitmap transmission method of an evolved Node B (eNB) in transmission mode 9 for communication with 8 antenna ports includes generating a CSR bitmap including bits corresponding to restricted precoding matrix indicators and rank indicators that are not allowed for reporting and transmitting the CSR bitmap to a User Equipment (UE). The CSR bitmap comprises 53 bits corresponding to a first codebook and 56 bits corresponding to a second codebook the 53 bits corresponding to a first codebook comprise 16 16 4 4 4 4 4 and 1 bits for layers 1 2 3 4 5 6 7 and 8 respectively and the 56 bits corresponding to a second codebook comprise 16 16 16 and 8 bits for layers 1 2 3 and 4 respectively.
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