At a live demo event in Berlin, the 5G Automotive Association (5GAA) presented a sneak peek of the cellular vehicle-to-everything (C-V2X) technologies ready to be deployed. 5GAA members, including BMW Group, Daimler, Deutsche Telekom, Fraunhofer Institutes FOKUS and ESK, Ford, Huawei, Jaguar Land Rover, Nokia, Qualcomm, and Vodafone, demonstrated C-V2X vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), and vehicle-to-network (V2N) applications.
“Connected mobility standards are no longer a vision for the future,” said Maxime Flament, Chief Technology Officer at 5GAA. “The solutions on show are ready to be deployed today and have huge industry momentum based on the forthcoming 5G capabilities. C-V2X technology is a key foundation for a safe and sound driving environment for pedestrians, bicyclists, motorcyclists, cars, and commercial heavy trucks. Global field testing is already in its very final stages, and the first solutions are now commercially available from multiple suppliers.”
A statement from the 5GAA said that, "Using both direct short-range communications and mobile networks offers complementary capabilities, as showcased in the demos, which involve tele-operated driving and the provision of emergency traffic information between vehicles using multi-access edge computing (MEC) functionality. All the demos used technology that is ready to be deployed."
Following are some highlights of the 5GAA C-V2X use cases showcased in Berlin.
Traffic management solutions: signal phase and timing (SPaT) and red-light violation warning (RLVW) to vehicle
During the demo drive, a BMW Group vehicle equipped with a Qualcomm onboard unit, running the Savari ITS software stack and the V2X use cases, communicated with a SWARCO traffic signal. The use case enables the driver to monitor the upcoming traffic light. The center display of the vehicle shows the current signal phase and how long it will remain. In the red-light violation warning (RLVW) use case, the application in the vehicle uses its speed and acceleration profile, along with the signal timing and geometry information from the traffic signal. If the driver is likely to run a red light, he/she receives a warning in the vehicle.
Traffic management solutions: emergency electronic brake light (EEBL) / roadworks warning (RWW)
C-V2X provides the driver with information so that he or she can adapt to the upcoming traffic situation in advance. Fraunhofer FOKUS, supported by Daimler, demonstrated an emergency electronic brake light warning. In this use case, two vehicles equipped with Huawei onboard units are accelerating, and the car ahead brakes hard. The second car instantly receives a warning, demonstrating the advantage of the low-latency C-V2X communication. Furthermore, a Huawei roadside unit communicates ongoing roadwork via C-V2X to the vehicle. Visitors experienced both use cases in the car viewing the warnings on the central display.
Real-time emergency alerts: vehicle-to-network and network-to-vehicle services
Vodafone Germany and Ford showed connected vehicle technology (V2X) that could alert drivers to an accident ahead, moments after it has happened (via eCall Plus). In addition, the system provides early warning that emergency vehicles are approaching—and which side of the road other vehicles should move toward to avoid being an obstruction.
Live data capture and transmission: expanded network/vehicle-to-network capacities via MEC
Continental, Deutsche Telekom, Fraunhofer ESK, and Nokia demonstrated how information is delivered to vehicles almost real-time via a mobile network, using multi-access edge computing (MEC) technology. All data is processed at the edge of the mobile network to reduce transmission time (latency). As a result, event-related data such as emergency warnings as well as high-definition map data are transmitted in milliseconds.
Combined network and direct solution enable the pinnacle of C-V2X technology
Vodafone Group, Huawei, and Jaguar Land Rover demonstrated safety critical use cases by combining different communication modes (short direct via PC5 and longer-range network-based via Uu). The provision of a two-stage warning enables vehicles to be made aware of other vehicles approaching the same junction much earlier and allowing action to taken sooner to avoid a crash. Also, the number of road accidents because of unsafe lane changes and blind spots are significant. C-V2X was shown that, at a T-junction, connected cars benefit from longer-range cellular network communication to deliver safety-related information beyond what can be delivered from short-range technology alone.
Remote-operated driving (ROD) anticipates situations in which a remote human operator can intervene with the driving of the vehicle. ROD is enabled by low-latency communication equipment that delivers instructions or inputs to the vehicle to help it navigate challenging scenarios.