(57) ABSTRACT A method and an apparatus for transmitting/receiving chan nel state
information for use in multi-antenna system are provided. A signal communication method of
a base station having a plurality of antennas in a wireless communication system includes
determining antenna ports of first and second directions based on directions of the plurality
of antennas, allocating channel measurement resources for the respective antenna ports to
a terminal, transmitting a feedback configu ration to the terminal according to the channel …