METHOD AND DEVICE FOR SUPPORTING MULTI-USER MULTI-STREAM IN WIRELESS COMMUNICATION SYSTEM

摘要

The present application provides a method for a multi-user multi-stream supporting base station transmitting a signal to a terminal. Here, the method may comprise the steps of: estimating channel information of a first terminal by receiving a reference signal from the first terminal; and by using the estimated channel information, transmitting a plurality of beams to the first terminal on the basis of a non-orthogonal multiple access scheme. Here, when transmitting the plurality of beams to the first terminal on the basis of the non-orthogonal multiple access scheme, a plurality of virtual terminals of the first terminal are generated, and a signal for a first virtual terminal among the plurality of virtual terminals may be allocated to a first beam and transmitted, and a signal for a second virtual terminal among the plurality of virtual terminals may be allocated to a second beam and transmitted.