| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide high reliability in data transfer using a DSRC as a road/ vehicle communication system. SOLUTION: In the RSU transmission control parts RSU 3A-3N, an IP packet from an AP server is stored in a DSRC frame, and an IP packet stored in the DSRC frame from on-vehicle equipment is extracted. In the OBE transmission control part of an OBE 5, an IP packet from a PC 6 is stored in the DSRC frame, and an IP packet stored in the DSRC frame from one of RSU 3A-3N is extracted. When the IP packet exchanged by the DSRC frame is lost in the block of radio communication, in the data transfer control parts of the AP server 1 and the PC 6, the retransmission of the IP packet is controlled, on the basis of a TCP protocol.</p> |
