To provide a technique that can reduce possibility of receiving information by a device that does not require information transmitted by a roadside device.SOLUTION: The roadside device 5 includes a first communication unit that performs transmission using a first antenna 511 having directionality. By transmitting information from a beam along a road in directivity, the first communication unit reduces possibility of being received by a device other than the device existing on the road.SELECTED DRAWING: Figure 2
【課題】路側機が送信する情報を必要としない装置が、情報を受信する可能性を低減することが可能な技術を提供する。【解決手段】路側機5は、指向性を有する第1アンテナ511を用いて送信を行う第1通信部を備える。第1通信部は、指向性における道路に沿ったビームから情報を送信することで、道路に存在する装置以外の装置で受信される可能性を低減する。【選択図】図2
ROADSIDE DEVICE, COMMUNICATION DEVICE, VEHICLE, TRANSMISSION METHOD, AND DATA STRUCTURE
路側機、通信装置、車両、送信方法及びデータ構造
2018-12-20
Patent
Electronic Resource
Japanese
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