The technology company Continental has started a joint research and development collaboration to realise 5G vehicle communications with the Japanese telecommunications company NTT Docomo to enhance connected infotainment functions and build the foundation for cellular based vehicle-to-everything (V2X) wireless communications systems.
During the concurrent shows Automotive Engineering Exposition 2017 in Yokohama and the Wireless Japan Expo, the two companies demonstrate a prototype application of the emerging 5G mobile communications technology. This oncoming high-performance wireless communication technology is currently being specified and is in its early stages. It is designed to enable a step-change in the speed of wireless data transmission, transmission quality and speed of response (latency time). NTT Docomo is among the world-wide leaders in developing and specifying the 5G standard. Continental takes an active role in defining what is needed to use 5G for future automotive use cases and has already started basic research.
“With 5G we are ahead of the game”, said Johann Hiebl, head of Continental’s Business Unit Infotainment and Connectivity. “Connecting vehicles is at the top of our agenda but to fully exploit the benefits of the connected vehicle we need the bandwidth, speed and fast response times of tomorrow’s cellular networks.”
By trying out prototypical applications of 5G Continental gains a deep understanding of practical details and potential fields of further research. “By combining Continental’s more than 20 years of automotive connectivity know-how with NTT Docomo’s leading 5G expertise, we will be ready to reap the benefits of the new technology once it is fully available from around 2022”, said Hiebl.
Making the 5G cellular potential visible
Practically all major automotive trends involve connectivity: greater driving safety is not only based upon sensor networks in the car and networked sensor signal interpretation but also on additional information from outside the car. Improving the efficiency of driving will increasingly require predictive driving strategies which factor in data from a backend via the cloud and from other vehicles. Automated driving as an important step towards accident-free driving (vision zero) is hardly conceivable without the electronic horizon (eHorizon) which integrates digital map data with sensor data for up-to-date maps and real-time traffic information. “The latest available data is the fuel of connected vehicles”, said Robert Gee, head of Product Management, Software and Connected Solutions and Telematics Systems Engineering manager, Japan at Continental. “As vehicles gain an equal footing in the Internet of Everything, data traffic will expand dramatically. Current cellular standards are not prepared for this. 5G, however, is.” The 5G technology targets to provide up to a million connections per square kilometre, allowing for many more devices than 4G.
During the Yokohama and Tokyo tech shows Continental demonstrates the technical potential of 5G: With their high-bandwidth prototype of a 5G system Continental and NTT Docomo are able to set up a high-resolution video-chat connection between their booths on both shows.
“The new cellular standard 5G will be able to connect vehicles with other road users and the infrastructure in ways beyond your imagination”, Gee said. With a targeted 10 gigabytes per second (Gbps) for downlink speeds and drastically reduced latency times which may be as low as 1 millisecond (1 msec) in a wireless link, exciting new use cases and services are becoming within reach. Among these are high density platooning, HD (high definition) live map updates, and sensor sharing.
A key potential of 5G cellular lies in its low latency times. This speed of response can be used for V2X communication. Once latency times are significantly reduced, wireless communication between cars, with the infrastructure and with other road users can improve the data basis for driver assistance and automated driving. “To make all this possible we need to look into frequency and data propagation details now”, Gee said. “That is why our current roadmap includes research into antenna and questions such as which frequencies are most suitable for moving vehicles.”