COORDINATED BEAMFORMING METHOD IN WIRELESS ACCESS SYSTEM, AND APPARATUS THEREFOR

摘要

Disclosed are a method for performing coordinated beamforming in a wireless access system, and an apparatus for the method. More particularly, the method for performing coordinated beamforming in a wireless access system comprises: a step in which a terminal receives, from a base station, time unit information for scheduling coordinated beamforming, a step in which the terminal receives, from the base station, a downlink signal having a predetermined transmission pattern on a time-unit basis for scheduling coordinated beamforming; a step in which the terminal demodulates the downlink signal using a reference signal transmitted from the base station; and a step in which the terminal removes an interference signal transmitted from a neighboring base station using the same downlink signal, from among the received downlink signals, that was received in different antenna modes. The antenna mode of the terminal can be switched according to a predetermined pattern on a time-unit basis for scheduling coordinated beamforming.

主权项

1. A method for supporting coordinated beamforming between base stations (BSs) in a wireless access system, comprising:
receiving, by a user equipment (UE), information of a time unit for scheduling the coordinated beamforming from a base station (BS); receiving, by the user equipment (UE), a downlink signal having a predetermined transmission pattern for the time unit for scheduling the coordinated beamforming from the base station (BS); demodulating, by the user equipment (UE), the downlink signal using a reference signal (RS) transmitted from the base station (BS); and cancelling, by the user equipment (UE), an interference signal transmitted from a contiguous base station (BS) using the same downlink signal received from different antenna modes from among the received downlink signals, wherein the antenna modes of the user equipment (UE) are switched to predetermined pattern, per time unit for scheduling the coordinated beamforming.