One embodiment of the present invention discloses a method for identifying the interference of a user equipment(s) on a pico base station located within the coverage of a macro base station in a wireless communication system, and the method comprises the steps: enabling the macro base station to receive an uplink (UL) interference control request message from the pico base station; signaling a random access preamble for the UL interference control to each of a plurality of interference candidate user equipments served by the macro base station; receiving, from the pico base station, received signal strength information of the random access preamble transmitted by the plurality of interference candidate user equipments; and determining the interference of user equipment on the pico base station on the basis of the received signal strength information, wherein transmission power of the random access preamble can be set in a random access preamble-specific manner.