RADIO COMMUNICATION SYSTEM, WAY SIDE RADIO COMMUNICATION DEVICE, MOBILE STATION, CONTROL METHOD OF WAY SIDE RADIO COMMUNICATION DEICE, CONTROL METHOD OF MOBILE STATION, CONTROL PROGRAM OF WAY SIDE RADIO COMMUNICATION DEVICE, AND CONTROL PROGRAM OF MOBILE STATION

摘要

PROBLEM TO BE SOLVED: To be able to effectively avoid transmission collision and efficiently acquire a communication channel.;SOLUTION: In this system, where two or more groups 1, 2 comprising two or more mobile stations are set and at least one mobile station in the groups 1, 2 is set at a beacon station, respectively, a way side radio communication device is equipped. The way side radio communication device sends way side beacon packet B2 when it receives vehicle beacon packet B1 transmitted from the beacon station existing in a communication area. The beacon station halts transmission of the vehicle beacon packet B1 before acquiring the communication channel when it receives either the vehicle beacon packet B1 or the way side beacon packet B2.;COPYRIGHT: (C)2006,JPO&NCIPI