To provide a vehicle-to-vehicle communication system improving a problem of packet congestion, a mobile station and a repeater used in the system, and a vehicle-to-vehicle communication performed using those.SOLUTION: A payload of vehicle-to-vehicle packets transmitted from a plurality of mobile stations are divided into and stored in a plurality of logical queues 243A, 243B, 243C, and 243D provided in a memory 243 of a repeater, and an exclusive OR of two payloads stored in different logical queues is set as an intermediate payload. A payload combination unit 244 links a plurality of intermediate payloads to generate a relay payload and a relay packet including the generated relay payload is transmitted to the mobile stations, and thereby packet congestion is reduced when the repeater performs vehicle-to-vehicle communication between the mobile stations.SELECTED DRAWING: Figure 4C
【課題】パケット輻輳の問題を改善する車車間通信システムと、これに用いる移動局および中継器と、これらを用いて行われる車車間通信とを提供する。【解決手段】複数の移動局から送信される車車間パケットのペイロードを、中継器のメモリ243に設けた複数の論理キュー243A、243B、243C、243Dに分けて格納し、異なる論理キューに格納された2つのペイロードの排他的論理和を中間ペイロードとする。複数の中間ペイロードをペイロード合成部244で繋げて中継ペイロードを生成し、生成した中継ペイロードを含む中継パケットを複数の移動局に向けて送信することで、中継器が移動局の間の車車間通信をする際にパケット輻輳を低減する。【選択図】図4C
VEHICLE-TO-VEHICLE COMMUNICATION SYSTEM, MOBILE STATION, REPEATER, AND VEHICLE-TO-VEHICLE COMMUNICATION METHOD
車車間通信システム、移動局、中継器および車車間通信方法
2019-04-25
Patent
Electronic Resource
Japanese
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