METHOD AND APPARATUS FOR TRANSMITTING SIGNAL IN WIRELESS COMMUNICATION SYSTEM

摘要

The present invention relates to a wireless communication system. A base station for transmitting a signal in a wireless communication system supporting multi user-multiple input and multiple output (MU-MIMO), according to another embodiment of the present invention, comprises: a radio frequency unit (RF); and a processor, wherein the processor can be configured to generate beams for subgroups including a plurality of terminals using analog beamforming, compensate beam phase difference which occurs between beams of subgroups using digital beamforming, after analog beamforming, and transmit, to the terminals, signals generated based on analog beamforming and digital beamforming.

主权项

1. A method for transmitting a signal by a base station in a wireless access system supporting multi user-multiple input and multiple output (MU-MIMO), the method comprising:
generating beams for a subgroup containing a plurality of user equipments (UEs) using analog beamforming; compensating for a phase difference between the beams of the subgroup through digital beamforming after the analog beamforming is performed; and transmitting, to the UEs, a signal generated based on the analog beamforming and the digital beamforming.