ISO 21216:2012

Apply For Services

ISO 21216:2012 is an international standard for Intelligent Transport Systems (ITS) that specifies the air interface for Communication Access for Land Mobiles (CALM) using millimetre wave technology. It defines the parameters required to interface the Layer 1 of such a system with the CALM architecture. This standard focuses on the technical aspects of the air interface, not the application-specific requirements, which are defined in CALM management and upper-layer standards.