INITIAL CONNETING METHOD BETWEEN INFRASTRUCTURE AND VECHILE AT VECHILE COMMUNICATION SYSTEM BASED ON INFRASTRUCTURE

摘要

PURPOSE: An infra in a vehicle communication system that is based on an infra base and a beginning connection method between vehicles are provided to minimize a resources that is used for a discovery beam. CONSTITUTION: Each of vehicles(320, 330) that enters to a service coverage of the infra(310) receives a discovery beam. Each of the vehicles selects one of mini slots according to a location of a contention slot that is included in the discovery beam. Each of the vehicles transmits own ID. The infra senses ID. The infra assigns an uplink resource about the vehicles that is corresponding to the ID.