Provided are a vehicle-to-everything (V2X) signal transmission method by a terminal having limited transmission capability in a multi-carrier system and a terminal using the method. The method is characterized by: selecting a first resource in a first carrier; if the transmission capability of the terminal is exceeded in accordance with the first resource when a particular subframe is used in a second carrier, randomly selecting a second resource among remaining subframes other than the particular subframe in the second carrier; and transmitting the V2X signal by means of the first resource and the second resource.
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