In a method for a transmission point to transmit a downlink signal to a user equipment in a wireless communication system, the method includes determining transmission power of first resource elements for data transmission of an OFDM symbol which does not include a Cell specific Reference Signal (CRS) and transmission power of second resource elements for data transmission of an OFDM symbol which includes the CRS, wherein a first parameter related to the determination of the transmission power of the first resource elements and a second parameter related to the determination of the transmission power of the second resource elements are determined by one of a first configuration and a second configuration, and wherein the first configuration and the second configuration are selectively applied according to one or more of a subframe and a transmission mode.