Summary - H.552 (04/2024) - Implementation of vehicle multimedia systems
Recommendation ITU-T H.552 specifies essential requirements for the implementation of vehicle multimedia systems (VMSs), addressing four of their main aspects: –connectivity, providing essential standard references and specific performance requirements for the vehicular environment; –human machine interface, dealing with voice assistant (VA) and auditory interaction requirements; –media format and control, providing standard references for different types of media for VMSs; –smartphone infotainment assistant, with requirements related to the interface architecture between smartphones and VMSs, as well as performance requirements to provide a fair level of user experience. Two appendices provide VMS implementation guidance: –radio frequency performance criteria for wireless local area network (WLAN) and user performance testing scenarios for WLAN and wireless personal area network connectivity; –implementation of a diagnostic interface for tuning the VA functionalities.
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