Discovery signal transmission method of terminal performing d2d communication and terminal using same

Provided are a discovery signal transmission method of a terminal supporting device-to-device (D2D) communication and a terminal device using such a method. The method comprises: directly receiving information on a specific discovery signal (DS) transmission mask or receiving discovery signal configuring information; selecting the specific DS transmission mask or one DS transmission mask from among a plurality of DS transmission masks indicated by the DS configuring information; and transmitting a discovery signal on the basis of the selected DS transmission mask.