
Intelligent transport systems - Communications access for land mobiles (CALM) - Communication protocol messages for global usage
出版:International Organization for Standardization

專家解讀視頻
Describes the following: - the Localized Message (LM) format: an NPDU of a networking and transport layer protocol that does not support routing of a packet through a network; - the Service Advertisement Message (SAM): an APDU to be transported in for example, an LM; - the Service Response Message (SRM): an APDU acknowledging a SAM that offered a service based on an ITS application class to be transported in for example, an LM; and - the related basic requirements for procedures.