An operation method of a terminal in a vehicle-to-everything (V2X) communication system may include: transmitting an indicator requesting provision of a low-latency communication service to a first base station; receiving from the first base station a radio link failure (RLF) triggering condition configured according to requirements of the low-latency communication service; measuring a radio link between the terminal and the first base station based on the RLF triggering condition; and in response to detecting a problem of the radio link, selecting a resource within an exceptional resource pool indicated by the first base station, and performing communication with the first base station using the selected resource during a duration beginning when the problem of the radio link is detected until a timer used for declaring an RLF expires.