Applications for cooperative intelligent transport systems are enabled by V2X communication. The project aim is to develop 5G technologies suited for V2X communicationObjectives
- Develop 5G vehicular antenna systems design and test methods for below and above 6 GHz
- Develop signal processing methods for the ultra-reliable machine-type communication (uMTC) and extreme mobile broadband (xMBB) 5G services to support C-ITS applications
The state-of-the-art systems for V2X communication to support C-ITS operate at 5.9 GHz and are based on the IEEE 802.11p standard, i.e., an evolution of the familiar Wi-Fi standard. C-ITS is a foreseen application also in the future 5G system. Here, the V2V part could be based on 802.11p or cellular device-to-device (D2D) communication, and the V2I part is naturally supported by the xMBB service. The uMTC service promises to provideunprecedented reliability, which is important for some C-ITS applications. While 11p-systems are close to deployment, 5G is still in the research and development stage. If the xMBB and uMTC services are eveloped to provide high performance for vehicular use cases, then the vehicular industry can be expected to be an early adopter of 5G.
Frequency bands above 6 GHz are currently not used for mobile radio access networks. However, these high frequency bands will be used in future 5G systems. This will pose serious challenges on the antenna integration in vehicles, since antenna installations will very likely require multiple mounting positions to
provide coverage in different directions. Another reason for using multiple vehicle antennas is the use of so-called predictor array antennas to provide high data rates for fast moving vehicles. Hence, 5G antenna systems will be far more complicated than anything currently used in vehicles, requiring newlevels of integration and new characterisation methods.
Swedish vehicular industry, including Volvo Cars, has been involved in many Swedish and EU projects in which the feasibility and value of V2X communication have been demonstrated. Other ChaseOn project partners have studied antennas and radio link technologies in, e.g., the Chase V2X project. Theparticipation of Chalmers and Ericsson in, e.g., the EU FP7 project METIS, has provided an in-depth knowledge in 5G. The collectively acquired knowledge will be used in this project to impact the implementation and standardisation of 5G.
Efficient 5G vehicular antenna systems will be both a competitive edge for vehicular OEMs as well as an enabler for demanding applications and services.
To offer high quality products and competitive services, it is therefore very important for Volvo Cars and its subcontractors to acquire knowledge and efficient methods for specifying, designing, and characterising 5G antenna systems. The Swedish SME Bluetest has developed world-leading measurement methods and equipment for antennas and wireless systems for frequencies up to 6 GHz. There is now an emerging need to develop methods also for characterizing 5G systems and components, especially for higher frequencies. This development is crucial for Bluetest to stay ahead of its competitors and thereby be able to invest in research and create job opportunities in Sweden.
Bluetest, Chalmers, Ericsson, Keysight, RISE, Smarteq, Volvo Cars
Professor Fredrik Brännström