Method for setting resource for fdr communication by node in fdr communication environment

Disclosed is a method for setting a resource, the method comprising the steps of: estimating channel information on each of a plurality of frequency resources available through CA by a base station in a FDR communication environment supporting the CA; transmitting the estimated channel information on the plurality of frequency resources to a counterpart node with which the base station is to perform a FDR communication; receiving channel information estimated by the counterpart node from the counterpart node; and selecting a frequency resource to be used for the FDR communication among the plurality of frequency resources by considering first channel information and second channel information together.