Method and apparatus for transmitting data by device-to-device terminal in wireless communication system

A user equipment transmitting a D2D (device to device) data in a wireless communication system, the user equipment comprising:

• a reception module;
• and
• a processor, the processor configured to determine a first subframe bitmap corresponding to information indicating a TRP (time resource pattern), the processor configured to determine a second subframe bitmap to be applied to a subframe pool for the D2D data transmission by using the first subframe bitmap, the processor configured to transmit the D2D data in a subframe included in a set of the subframes corresponding to the second subframe bitmap,
• wherein if a size M of the first subframe bitmap is smaller than a size of the subframe pool for the D2D data transmission, the first subframe bitmap is repeated, and
• wherein if the size M of the subframe pool for the D2D data transmission is not an integer multiple of the size of the first subframe bitmap, one or more bits of the lastly repeated first subframe bitmap are sequentially used.