
Communication Control Unit (CCU)
Wireless communication between vehicles and their surroundings (Vehicle-to-Everything [V2X] or Car2X), including communication between a vehicle and road infrastructure (Vehicle-to-Infrastructure [V2I] or Car-to-Infrastructure [C2I]) and between vehicles (Vehicle-to-Vehicle [V2V] or Car-to-Car [C2C]) according to ETSI ITS G5 or C-V2X standard
Roadside ITS-Station also Intelligent Roadside Station (IRS), Roadside/Road Side Unit (RSU)
Information exchange and communication
• IRS consists of several parts, usually a CCU and an AU, connected via network technology
• The parts of an integrated IRS are often located at a distance from each other, so that the CCU is up on the traffic light post and the AU is the intersection in the traffic control box