METHOD, DEVICE AND SYSTEM FOR TRANSMITTING CHANNEL STATE INFORMATION

摘要

The present invention discloses a method, an apparatus and a system for transmitting channel state information, and relates to the field of communication, for a purpose of solving a problem existing in the prior art that it is difficult to transmit CSI information in a cooperative MIMO system. The technical solution according to the present invention comprises: acquiring channel state information between a mobile terminal and two or more cooperative base stations; quantizing the channel state information separately by using a preset single-cell codebook between the mobile terminal and each one of the two or more cooperative base stations, and 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. The embodiments of the present invention are applicable to the cooperative MIMO systems.