A feedback method of a terminal for cooperative communication, the method comprising: estimating channel values based on channel status information reference signals transmitted by multiple cells; calculating signal-to-interference plus noise ratio per cell based on the estimated channel values; receiving cell status information including an offset value corresponding to a number of other terminals operating in each cell of the multiple cells; selecting a best cell based on the calculated signal-to-interference plus noise ratio and based on the offset value corresponding to the number of other terminals operating in the each cell of the multiple cells; and transmitting feedback information including a cell index of the best cell and related channel information, wherein the selecting the best cell comprises: receiving information for specifying at least one blanking group of the cells as information on interference status to be considered by the terminal, wherein the at least one blanking group of the cells mute data transmission at a predetermined time among the multiple cells; and selecting the best cell in consideration of the information for specifying the at least one blanking group of the cells, and wherein the transmitting the feedback information comprises generating the feedback information including cell indices of best cells selected with and without reflecting the information for specifying the at least one blanking group of the cells and channel information related to the respective cell indices. estimating channel values based on channel status information reference signals transmitted by multiple cells; calculating signal-to-interference plus noise ratio per cell based on the estimated channel values; receiving cell status information including an offset value corresponding to a number of other terminals operating in each cell of the multiple cells; selecting a best cell based on the calculated signal-to-interference plus noise ratio and based on the offset value corresponding to the number of other terminals operating in the each cell of the multiple cells; and transmitting feedback information including a cell index of the best cell and related channel information, wherein the selecting the best cell comprises: receiving information for specifying at least one blanking group of the cells as information on interference status to be considered by the terminal, wherein the at least one blanking group of the cells mute data transmission at a predetermined time among the multiple cells; and selecting the best cell in consideration of the information for specifying the at least one blanking group of the cells, and wherein the transmitting the feedback information comprises generating the feedback information including cell indices of best cells selected with and without reflecting the information for specifying the at least one blanking group of the cells and channel information related to the respective cell indices. receiving information for specifying at least one blanking group of the cells as information on interference status to be considered by the terminal, wherein the at least one blanking group of the cells mute data transmission at a predetermined time among the multiple cells; and selecting the best cell in consideration of the information for specifying the at least one blanking group of the cells, and wherein the transmitting the feedback information comprises generating the feedback information including cell indices of best cells selected with and without reflecting the information for specifying the at least one blanking group of the cells and channel information related to the respective cell indices.