Precoding method and apparatus

摘要

A precoding method and apparatus are provided. Each transmission node receives feedback on first information as information regarding a transmission node that transmits an interference signal causing an interference-to-noise ratio (INR) greater than a first reference value from reception nodes, determines a group to which each transmission node belongs on the basis of the first feedback information, and allocates resources to each group. In a detailed manner, each transmission node determines comparison values of INRs, as two or more values, determines a group by using feedback information corresponding thereto, and allocates resources. Each transmission node receives feedback on channel information or precoder information from reception nodes of each group to which each transmission node belongs, and determines a precoder by using the feedback channel information or precoder information.

主权项

1. A method for precoding a signal at transmission nodes, the method comprising:
receiving feedback on a first information as information regarding a transmission node that causes an interference-to-noise ratio (INR) greater than a first reference value from a plurality of reception nodes; determining a group to which each transmission node belongs on the basis of the first information; receiving feedback on channel information or precoder information from each reception node corresponding to the each transmission node; determining a precoder by using the channel information or the precoder information; and precoding a transmission signal by using the determined precoder.