The invention describes a controller for data processing in bidirectional adhoc-network radio communication with a computation unit for data processing and ports for data input and data output. The computation unit is set up to process the data according to the ITS standard, wherein the data processing is limited to processing steps of the ITS Facility layer, which performs content-oriented evaluation and/or conditioning of the data which are received or need to be sent by means of the bidirectional adhoc-network radio communication, and a first wideband communication port is provided at least for receiving the data from an ITS communication unit for the purpose of bidirectional adhoc-network radio communication.