Patent ID: 8837619

Claim:
A communication method for coordinated multi-point (CoMP) transmission, the communication method comprising: recognizing a status of channels that are between a target terminal and a plurality of base stations that perform the CoMP transmission; determining, by a processor, sizes of a plurality codebooks for the plurality of base stations within a limited total size, based on the status of the channels; constructing the plurality of codebooks corresponding to the plurality of base stations based on the determined sizes; adaptively adjusting a size of feedback information that the target terminal transmits to at least two base stations, from among the plurality of base stations, based on a change in the status of the channels between the target terminal and the plurality of base stations, wherein a total size of the feedback information transmitted to the plurality of base stations is the same before and after the adjusting; and transmitting, by the plurality of base stations, information about the determined sizes of the plurality of codebooks to the target terminal.