MOBILE BODY, SERVER, COMMUNICATION SYSTEM, COMMUNICATION CONTROL METHOD, AND PROGRAM

• Main Authors: EBISAWA KENICHI, OGURA SUNAO, OTAKE HIROSHI, WATANABE TOMORO, ASAKURA KEISUKE, KAWAMURA HIROAKI
• Format: Patent
• Language: English; Japanese
• Published: 06.01.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PHYSICS; SIGNALLING; TELEPHONIC COMMUNICATION; TRAFFIC CONTROL SYSTEMS

To provide a communication system capable of suppressing communication traffic and communication costs in communication between a server and a mobile body such as a vehicle via a mobile radio communication network (cellular network).SOLUTION: A communication system comprises: a plurality of mobile bodies; and a server for periodically performing information communication with a plurality of communication devices mounted on the plurality of mobile bodies via a base station for mobile communication. The communication system comprises: means that with respect to the plurality of mobile bodies, determines whether or not information on another mobile body located in its surroundings can be acquired via inter-mobile body direct radio communication; and means that with respect to at least a part of mobile bodies on which it is determined that the information on the other mobile body can be acquired via the inter-mobile body direct radio communication, out of the plurality of mobile bodies, changes periods of information communication between the server and communication devices of the at least a part of mobile bodies to longer periods.SELECTED DRAWING: Figure 4 【課題】車両等の移動体とサーバとの間の移動通信網（セルラーネットワーク）を介した通信における通信トラフィック及び通信コストを抑制することができる通信システムを提供する。【解決手段】通信システムは、複数の移動体と、前記複数の移動体に搭載された複数の通信装置との間で移動通信の基地局を介して周期的に情報の通信を行うサーバとを備える。通信システムは、複数の移動体について、周辺に位置する他の移動体の情報を移動体間の直接無線通信によって取得可能か否かを判断する手段と、複数の移動体のうち他の移動体の情報を移動体間の直接無線通信によって取得可能と判断した少なくとも一部の移動体について、前記少なくとも一部の移動体の通信装置とサーバとの間の情報の通信の周期をより長い周期に変更する手段と、を備える。【選択図】図４