Provided is a method for a terminal for measuring the reference signal received quality (RSRQ) of a serving cell.The terminal receives a discovery reference signal (DRS) measurement timing configuration (DMTC) from a network, and on the basis of the received DMTC, the terminal can measure the RSRQ of the serving cell. The serving cell may comprise a small cell supporting a DRS, and the small cell may be present on the same frequency as the serving cell. Furthermore, the RSRQ measurement of the serving cell can only be carried out during a non-DMTC period set in accordance with the DMTC. The non-DMTC period is a period during which a DRS is not transmitted from the small cell.