Patent ID: 8831067
Filing Date: 2014-09-09
Classification: H03M,H04B,H04L

Abstract:
1. A method for feeding back channel state information, comprising the following steps of: configuring a same codebook space at a data transmitting end and a data receiving end; the data receiving end selecting, from the codebook space, a codeword matched with a channel, and transmitting a sequence number corresponding to the codeword to the data transmitting end; and the data transmitting end extracting, according to the sequence number, a corresponding codeword from a locally-configured codebook space to obtain channel state information, wherein, the step of configuring a same codebook space at a data transmitting end and a data receiving end comprises: selecting κ matrices M constructing the codeword in the codebook space using models  and wherein O indicates an all-zero matrix.