In the United States, a C-V2X transport and environment exchange system is being implemented

In the United States, a C-V2X transport and environment exchange system is being implemented

The joint project aims to improve road safety with the help of C-V2X communication technology. Implementation will begin in the third quarter of 2020

Audi of America, Virginia Department of Transportation (VDOT) and Qualcomm Technologies announce plans for initial deployment of communications
Cellular Vehicle-to-Everything (C-V2X) information exchange technologies. The system is scheduled to be deployed in northern Virginia. for communications
The portion of the 5.9 GHz band that the Federal Communications Commission (FCC) has proposed to allocate for C-V2X systems will be used.

Road C-V2X basic channel will be used to alert the road works and the time of approaching the regulated intersections on the highways.
Security messages between vehicle and infrastructure are minimally delayed. Less important messages will be transmitted on the C-V2X via the network.

The initial phase of the project is designed for connected vehicle systems designed to improve the safety of school buses, warn drivers of dangerous road conditions,
reducing congestion of vehicles in bottlenecks and sidewalks. It is also expected to improve the performance of automated vehicles that will be released soon, and
enable vehicles to transmit warning signals to mobile devices, which will in the future prevent fatal pedestrian accidents (now on US roads)
more than 6000 pedestrians die each year).

The authorities assume two scenarios:

  • Particularly important on the freeways, project participants consider a roadwork warning scenario. It uses a Qualcomm 9150 C-V2X chipset solution to the onboard display of an Audi car
    Q8 SUVs with low latency are receiving increasingly frequent warnings about the presence of workers on the route.

  • On highways, the Qualcomm 9150 C-V2X chipset solution will convey information about the traffic light phases and their duration in an Audi Q8 SUV. In these cars is implemented
    Audi Traffic Light Information (TLI) service, which informs the driver of the time remaining until the green traffic light is turned on. The C-V2X can also transmit directly from the traffic light to
    vehicle data that will be used by the TLI system to adjust the phase and duration information of the traffic light.

Virginia Tech Transportation Institute (VTTI) is a contract developer of the software and systems needed to support the major scenarios,
intended for initial deployment. After developing the software, the institute will demonstrate the use of C-V2X technology in these scenarios.

In the first phase of this project, the C-V2X solution uses the specifications 3GPP Release 14 and Release 15. Direct communication is carried out in the 20 MHz band (5.905 – 5.925 GHz) in the ITS band
(Intelligent transportation system), which the FCC proposed to allocate for the C-V2X systems. Plus the technology is that it involves switching to 5G using the specifications of 3GPP Release 16.

C-V2X systems use both direct short-range communication in the 5.9 GHz range and long-distance communication through networks of cellular operators. Available chipsets support both types in one solution
communication at the same time, which facilitates the introduction of technology.

Currently, commercial C-V2X products come in the form of various micro-platforms, wireless modules, onboard units and infrastructure roadside devices.

security, information system


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