Patent ID: 8750150
Filing Date: 2014-06-10
Classification: H04B

Abstract:
1. A method of transmitting channel state information comprising: acquiring channel state information of a channel between a mobile terminal and two or more cooperative base stations; quantizing the channel state information separately by using each single-cell codebook used to quantize the channel state information of the channel between the mobile terminal and each of the two or more cooperative base stations; acquiring united codeword indexes of the quantized channel state information in the single-cell codebook; and transmitting the united codeword indexes of the quantized channel state information in the single-cell codebook, wherein acquiring the channel state information of the channel between the mobile terminal and the two or more cooperative base stations comprises: acquiring an aggregated channel matrix and path loss between the mobile terminal and the two or more cooperative base stations; acquiring a normalized aggregated channel matrix by normalizing the aggregated channel matrix using the path loss; and acquiring the channel state information of the channel between the mobile terminal and the two or more cooperative base stations according to the normalized aggregated channel matrix.