APPARATUS AND METHOD FOR OPERATING NON-ORTHOGONAL MULTIPLE ACCESS SCHEME IN MULTIUSER BEAMFORMING SYSTEM

摘要

A base station according to an embodiment of the present disclosure receives channel information on channels associated with each of a plurality of terminals, and based on the channel information, a correlation between channels for at least two terminals in the plurality of terminals is determined. Determining a channel correlation value indicating a channel value, and determining a channel gain difference value indicating a gain difference for channels for each of the at least two terminals based on the channel information, and determining the channel correlation value and the channel determined for each of the at least two terminals. Classify the plurality of terminals into a plurality of groups based on a gain difference value, determine a beamforming vector for each of the plurality of groups based on channel information of the terminals in each of the plurality of groups, and Allocates power to terminals within each of the groups of S, and based on the allocated power and the determined beamforming vector To form a beam for each of the plurality of groups.