Method for multiplexing control information at base station in wireless communication system and apparatus for the same

Disclosed by the present invention is a method to transmit a downstream link control channel by a base station in a wireless communication system. More specifically, the method includes the following steps of: generating control information for each of a plurality of terminals; assigning each of the plurality of terminals to different subcarrier sets in one or more pairs of resource blocks set for the downstream link control channel; and transmitting the downstream link control channel through an assigned frequency band.