A method and apparatus for improving complexity of hybrid beam forming in a radio communication system

The present invention relates to a method for improving complexity for hybrid beamforming in a wireless communication system, the method comprising the steps of: determining a predetermined number of transmit antennas based on first combinations of transmit antennas, Selecting candidate transmission beams, selecting an optimal second combination of the second combinations generated based on the candidate transmission beams, and selecting a second combination of the digital pre-combinations using the signal- And selecting a coder.