The area of vehicle-to-infrastructure (C2I) communication has become an increasingly important area in the field of C2X communication in recent years. It is on the same level as vehicle-to-vehicle (C2C) communication and uses the same technologies and protocols. In today's research environment, the consensus is that IEEE standard 802.11p is used for communication. Based on this, the Car-2-Car Communication Consortium is developing a unified protocol stack for effective and efficient C2X communication. Roadside units (RSU) can be used to support driver assistance systems. Through targeted information processing and information distribution, they are intended to expand the vehicle's capabilities through additional data and also provide information that could not be made available through C2C communication alone.

中文翻译：

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车辆基础设施-通信以支持驾驶员辅助系统

近年来，车对基础设施（C2I）通信领域已成为C2X通信领域中越来越重要的领域。它与车对车（C2C）通信处于同一级别，并且使用相同的技术和协议。在当今的研究环境中，共识是IEEE标准802.11p用于通信。基于此，Car-2-Car Communication Consortium正在开发一个统一的协议栈，以实现高效的C2X通信。路边单元（RSU）可用于支持驾驶员辅助系统。通过有针对性的信息处理和信息分发，它们旨在通过附加数据扩展车辆的功能，并提供仅靠C2C通信无法提供的信息。