METHOD AND APPARATUS FOR PROVIDING HYBRID BEAMFORMING IN LARGE-SCALE ANTENNA SYSTEM

摘要

The present invention relates to a beamforming method of an antenna system comprising the steps of: calculating a first analog beamforming matrix based on a singular value decomposition (SVD) result of a channel matrix with at least one reception device; calculating a second analog beamforming matrix having a size of each element of 1 and minimizing the first analog beamforming matrix and a mean square error (MSE); and calculating a digital beamforming matrix based on the second analog beamforming matrix and the channel matrix in consideration of a transmission power constraint condition.