Performing CoMP operating in a wireless communication system and a feedback information transmission method

It discloses a method and a feedback information transmission method that effectively performs a CoMP operation in a wireless communication system. MS may transmit additional information in addition to the noise and interference variance information for limiting and / or other cells that do not perform the PMI information, CoMP operation to be recommended for the adjacent cell. Based on the thus received information about the neighboring cell can determine the ranking for the PMI to be restricted and / or the like efficiently. The terminal may send a transmission normalization (normalization) the CSI feedback information, at which the CSI feedback information to the serving base station. A multi-cell channel state information