LTE-V2X: Real-time mobile technology is to prevent accidents

Bosch, Vodafone and Huawei are testing the new technology LTE-V2X on the test track of the A9 motorway, which will optimize the traffic flow and reduce the number of accidents through the real-time communication of vehicles.

Bosch sees the current test of the first 5G test modules for delay-free data exchange from car to car as a milestone on the way to the fully networked road traffic.
Picture: Bosch

The new mobile radio technology enables the direct and non-delayed exchange of information between vehicles. 
Networked cars, for example, send information about speed, position and lane change directly to all vehicles within a radius of 320 meters - without any detours and therefore free of delays. The fast and direct communication between the cars should optimize the flow of traffic and reduce the number of accidents. In the future, together with the comprehensive mobile communications network, it is to provide additional security for fully networked road traffic, according to Bosch.

Vodafone installs on the test track of the A9 a correspondingly powerful mobile radio network for the data transmission. As a system technology partner, Huawei creates the mobile radio modules for the cars and installs the required communication technology in the base stations. Bosch integrates the mobile radio modules and corresponding software in the vehicles and carries out the measurements on site. In test operation the partners want to show under live conditions that the direct communication between the cars by mobile radio with very low latency works and how it differs from WLAN-based alternatives.

The support provided by the mobile radio network also ensures maximum reliability and facilitates the coordination of communication between the cars. LTE-V2X is currently being specified in international bodies. Bosch, Vodafone and Huawei are the first to update their tests in Europe at all.
First, the technology is tested as a real-time warning system when changing lanes on the motorway. In doing so, the car exchanges all vehicle information - for example, speed and position - with the vehicles in the environment. If a car is approaching at high speed from the rear when changing the lane so that the accident can occur, the driver receives a warning. A delay-free information exchange is crucial here. Later on, the technology will be tested in further scenarios in order to investigate which functions, in addition to early warning when changing lanes, can primarily benefit from fast data transmission. This includes, for example, the warning in the unpredictable braking process of the preceding vehicle.