Method for transceiving signal in wireless communication system and apparatus therefor

A terminal for transmitting, a device-to-device (D2D) signal using a first component carrier and a cellular signal using a second component carrier in a wireless communication system, the terminal comprising:

• a radio frequency (RF) unit including a transceiver and configured to transmit and receive a wireless signal;
• and
• a processor functionally connected to the RF unit,
• wherein the processor is configured to control the RF unit to:
• transmit the D2D signal on the first component carrier to a second terminal;
• transmit the cellular signal on the second component carrier to a base station;
• and
• control transmission power of the D2D signal not to exceed a maximum transmission power in an overlapped portion of a subframe if the transmission of the D2D signal overlaps with the transmission of the cellular signal,
• wherein controlling transmission power of the D2D signal is performed on the basis of a transmission mode of the D2D signal and the cellular signal.