标准编号：ISO/TS 18234-10:2013
中文名称：智能运输系统 利用第一代传输协议专家组（TPEG1）二进制数据格式的交通和旅行信息 第10部分：有条件访问信息（TPEG1-CAI）
英文名称：Intelligent transport systems — Traffic and travel information via transport protocol experts group, generation 1 (TPEG1) binary data format — Part 10: Conditional access information (TPEG1-CAI)
发布日期：2013-10
标准范围
This Technical Specification contains the definition of the TPEG Conditional Access Information (CAI) application. It enables dedicated conditional access data, such as management messages (e.g. Control Words and Entitlement Control Messages) to be delivered to recipient client devices. This TPEG application is designed for a service provider to: establish setup, prolongation or revocation of services to a specific client device, using a limited capacity unidirectional broadcast channel and without recourse to service-client handshaking.This TPEG application defines:?the logical channel, for the transmission of the additional CA information (CAI);?how the CAI is linked and synchronized to the scrambled content.This Technical Specification is related to conditional access applied at the service component level of a TPEG service. It is an open design for the integration of various different conditional access systems, externally specified, which are signalled by the TPEG service Encryption Indicator to allow client devices to operate correctly.
立即下载标准文件