| 摘要 |
<p>The present invention discloses a method and device for performing coordinated precoding in a wireless access system. In particular, the present invention includes: transmitting, to a base station, a measurement result of a plurality of interference signals by a terminal, the plurality of interference signals being transmitted from a plurality of adjacent base stations; receiving quasi-orthogonal CDM (Q-CDM) code information from the base station by the terminal in order to remove some of the plurality of interference signals, the Q-CDM code information being determined by the base station and the plurality of adjacent base stations; transmitting information on a channel state to the base station on the basis of a Q-CDM code by the terminal; and receiving downlink data, to which coordinated precoding is applied, from the base station by the terminal. Interference signals that have an intensity greater than a predetermined threshold from among the plurality of interference signals may be removed by using the Q-CDM code, and interference signals that have an intensity less than the predetermined threshold from among the plurality of interference signals may be removed by using null precoding.</p> |
