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下一代多媒体融合业务已成为通信市场的发展趋势。目前的电信网络体系结构由多个相互独立的垂直业务体系组成,如VoIP、可视电话、视频点播等, 不同网络为用户提供不同的业务。“终端-网络-应用”的“点到点”形式的传统网络结构不利于运营商简单、快速引入新业务以及业务之间的互动。下一代“融合”的演进方向是“多种终端一多种接入-统-控制核心网-多种应用”的网络体系结构,不同业务能同时运行、交互,并且多媒体融合的“生活时尚”(Lifestyle)业务与网络控制分离, 连接到统一的会话控制及公共的网络资源。基于IMS(IP多媒体子系统)的融合体系架构正是适应这种“融合”需求而产生的。
The next generation of multimedia convergence services has become the development trend of the communications market. The current telecom network architecture consists of a number of independent vertical business systems, such as VoIP, video telephony, video on demand and so on. Different networks provide users with different services. The traditional network structure of “point-to-point” of “terminal-network-application” is not conducive to the simple and rapid introduction of new services and interactions between services by operators. The evolution of the next generation of “convergence” is the network architecture of “multiple terminals with multiple access-unified control-core network-multiple applications”. Different businesses can simultaneously run, interact, and integrate multimedia “lifestyle” (Lifestyle) Business and network control separation, connected to a unified session control and public network resources. The converged architecture based on IMS (IP Multimedia Subsystem) is precisely what meets this “convergence” requirement.