A method for performing channel measurement for one or more subbands belonging to the entire system bandwidth, which is performed by a terminal, may comprise the steps of: receiving, from a base station, information on a window of channel measurement sections for N subbands for which the channel measurement is performed and information indicating a sub-frame in which channel measurement is to be performed in the window; performing channel measurement for K (N≥K) subbands in the window; and transmitting a result of the channel measurement to the base station, wherein the result of the channel measurement is transmitted to the base station in one subband belonging to the entire system bandwidth.