For some time now, the protagonists of vehicle networking have been working on implementing future V2X services based on 5G mobile technology. The advantage of 5G over the DSRC technology with the IEEE802.3p radio standard, which was originally designed for this application, is that 5G offers the possibility of integrating services in the cloud or in the OEMs' backend computers via a connection to the mobile network. And all this without having to accept significant reductions in the reaction speed of the systems, as was the case with previous generations of mobile communications. This technology thus extends the range far beyond the visual range – one of the major limitations of the older DSRC technology.
As part of the project, the participants, under the leadership of the automotive supplier Bosch, developed essential technical and operational principles for the series-production readiness of this technology in the areas of networks, security, and communication protocols. The project thus cleared obstacles on the way to standardization of this technology and opens up the possibility of series production and the development of new business models. Among the participants were the car manufacturers BMW and Volkswagen, telcos Deutsche Telekom and Vodafone, equipment suppliers Ericsson and Nokia as well as the Technical Universities of Dresden and Kaiserslautern and the Fraunhofer Heinrich Hertz Institute.
By means of the technology developed, vehicles can exchange data with each other in real time (V2V). At the same time, the technology offers the possibility of implementing communication applications between vehicles and infrastructure (V2I) and between vehicles and the network (V2N). On this basis, the partners in the 5G NetMobil project developed, for example, an intersection assistant that protects pedestrians and cyclists at unclear intersections. A camera installed in the infrastructure detects pedestrians and warns vehicles within a few milliseconds to prevent critical situations, e.g. when turning off. Another example of the research project is platooning: This allows commercial vehicles to join together in so-called platoons and drive at very close distances to each other. Acceleration, braking and steering interventions are synchronized by V2V communication. Automated slipstream driving in convoys significantly reduces fuel consumption and increases safety on the motorways. Platooning applications can also be found in agriculture - although the vehicles drive parallel across the fields.