A method of receiving a discovery reference signal-primary synchronization signal, DRS-PSS, and a discovery reference signal-secondary synchronization signal, DRS-SSS in a wireless communication system which includes a macro cell and a small cell located on the macro cell, the method performed by a user equipment, UE , and comprising: checking, through a physical control format indicator channel, PCFICH, a location of at least one of orthogonal frequency division multiplexing, OFDM, symbols on which a physical downlink control channel, PDCCH, is received in a downlink subframe; and determining, in the downlink subframe, a first resource region on which the DRS-PSS is received from the small cell and a second resource region on which the DRS-SSS is received from the small cell, wherein the UE determines the first resource region and the second resource region based on assuming that the first resource region and the second resource region do not overlap with a resource region for the at least one of OFDM symbols on which the PDCCH is received, wherein the macro cell is a primary cell and the small cell is a secondary cell, wherein the DRS-PSS and the DRS-SSS are periodically transmitted from the small cell and are used for a cell search procedure of the small cell or a cell detection procedure of the small cell, wherein the DRS-PSS and the DRS-SSS support a measurement of the small cell performing an on/off operation, wherein the UE determines the first resource region and the second resource region based on a location of a cell-specific reference signal, CRS, a PSS, a SSS and the PDCCH, wherein the first resource region is located on an OFDM symbol different from OFDM symbols for the CRS, the PSS, the SSS and the PDCCH in the downlink subframe, wherein the second resource region is located on an OFDM symbol of the SSS, and wherein the OFDM symbol on which the second resource region is located is determined based on a cell ID of the small cell. checking, through a physical control format indicator channel, PCFICH, a location of at least one of orthogonal frequency division multiplexing, OFDM, symbols on which a physical downlink control channel, PDCCH, is received in a downlink subframe; and determining, in the downlink subframe, a first resource region on which the DRS-PSS is received from the small cell and a second resource region on which the DRS-SSS is received from the small cell, wherein the UE determines the first resource region and the second resource region based on assuming that the first resource region and the second resource region do not overlap with a resource region for the at least one of OFDM symbols on which the PDCCH is received, wherein the macro cell is a primary cell and the small cell is a secondary cell, wherein the DRS-PSS and the DRS-SSS are periodically transmitted from the small cell and are used for a cell search procedure of the small cell or a cell detection procedure of the small cell, wherein the DRS-PSS and the DRS-SSS support a measurement of the small cell performing an on/off operation, wherein the UE determines the first resource region and the second resource region based on a location of a cell-specific reference signal, CRS, a PSS, a SSS and the PDCCH, wherein the first resource region is located on an OFDM symbol different from OFDM symbols for the CRS, the PSS, the SSS and the PDCCH in the downlink subframe, wherein the second resource region is located on an OFDM symbol of the SSS, and wherein the OFDM symbol on which the second resource region is located is determined based on a cell ID of the small cell. <EOS>