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IP多媒体子系统用于实现端到端的IP多媒体通信,具有接入无关性、对各种接入技术广适性的特点,因此,下一代网络采用IP多媒体子系统作为核心架构.提出一个基于IP多媒体子系统的IP电视架构,在IP多媒体子系统核心模块的基础上,以一组互相独立的基于会话初始化协议的功能模块构成应用服务器,并设计了能够支持和提供不同IM S业务的客户端与内容提供商端,使该IPTV框架可以在下一代网络上支持基于IP多媒体子系统的包括IPTV业务在内的多种多媒体业务.
IP multimedia subsystem is used to realize end-to-end IP multimedia communication, has access independence and wide adaptability to various access technologies, so the next generation network adopts IP multimedia subsystem as its core architecture.An IP-based multimedia subsystem is proposed based on IP Based on the core module of IP Multimedia Subsystem, a group of independent functional modules based on Session Initiation Protocol constitute an application server, and a client that supports and provides different IM S services is designed And content providers to enable the IPTV framework to support a variety of multimedia services including IPTV services over IP-based multimedia subsystems on next generation networks.