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首页> 外文期刊>IEEE Vehicular Technology Magazine >Initial Steps Toward a Cellular Vehicle-to-Everything Standard [Connected Vehicles]
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Initial Steps Toward a Cellular Vehicle-to-Everything Standard [Connected Vehicles]

机译：朝着蜂窝车辆到所有标准[联网车辆]的初始步骤

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摘要

The Third Generation Partnership Project (3GPP) has developed some functionalities to provide enhancements of cellular standards specifically for vehicular communications. These include both direct communication (between vehicles, vehicle-to-pedestrian, and vehicleto-infrastructure) and cellular communications with networks. The vehicle-to-vehicle (V2V) work item builds on earlier work on device-todevice (D2D) communications and introduces a new D2D interface (designated as PC5, which is also known as the sidelink at the physical layer), specifically addressing communications at vehicular speeds. To that end, four additional pilot symbols have been added to the demodulation reference signal to allow for better tracking of the channel despite high Doppler effects associated with relative speeds of up to 500 km/h and at high frequency (with 5.9 GHz ITS band being the main target).
机译：第三代合作伙伴计划（3GPP）开发了一些功能，以提供专门用于车辆通信的蜂窝标准的增强功能。这些包括直接通信（车辆之间，车辆到行人之间以及车辆到基础设施之间）和蜂窝网络通信。车对车（V2V）工作项建立在设备到设备（D2D）通信的早期工作的基础上，并引入了新的D2D接口（称为PC5，在物理层也称为侧链），专门处理通信以车速行驶。为此，已将四个附加的导频符号添加到了解调参考信号中，以便尽管在与多频勒效应相关的高达500 km / h的相对速度和高频情况下仍具有较高的多普勒效应，但仍可以更好地跟踪信道（在5.9 GHz ITS频段主要目标）。

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