Method for allocating resource for signal by terminal in wireless communication system and apparatus therefor

A first terminal for allocating resources in a wireless communication system supporting carrier aggregation, the first terminal comprising:

• a transmitter and a receiver;
• and
• a processor configured to:
• receive a configuration of a resource pool for signal transmission;
• based on a sum of powers of N messages not exceeding a power limits of UE, transmit the N messages to a second terminal through different N carriers in a first subframe based on the resource pool;
• and
• based on the sum of the powers of the N messages exceeding a power limits of UE, transmit M messages to the second terminal through different M carriers in the first subframe based on the resource pool, and N-M messages to the second terminal through different N-M carriers in a second subframe different from the first subframe,
• wherein the M messages are selected as a message combination that comprises the majority of the N messages, and
• wherein each of the N and the M is a natural number, and the M is smaller than the N.