1. A method by a base station for supporting a vehicle to everything (V2X) service, the method comprising:transmitting a first message including first information on zone configuration, wherein the first information on the zone configuration includes zone-related information for identifying a zone and resource pool information corresponding to the zone identified based on the zone-related information;
receiving, from a terminal, a report message including a channel busy ratio (CBR) for a resource pool corresponding to the zone, wherein the resource pool is identified based on the resource pool information corresponding to the zone;
updating the zone configuration by adjusting a size of the zone based on the received CBR, and updating the resource pool information based on the updated zone configuration; and
transmitting a second message including second information on the updated zone configuration.