Disclosed in the present invention is a method for a terminal to transceive a base station and a signal in a wireless communication system having a carrier aggregation technique applied thereto. More particularly, the present invention comprises the steps of: receiving a preamble from the base station through a specific component carrier; determining the use of either an uplink or a downlink of a corresponding subframe, on the basis of the preamble; and executing either the transmission of an uplink signal to the base station through the specific component carrier, or the reception of a downlink signal from the base station through the specific component carrier, according to the result of the determining step.