CATV网络接入IMS控制的核心网的体系结构

The Architecture of CATV Access to IMS Controlled Core Network

由于IP多媒体子系统(IMS)的特征是采用SIP协议进行呼叫控制、与接入无关和能够提供多种业务,3GPP、ETSI和ITU-T等组织都在研究基于IMS架构的下一代网络(NGN)。在介绍IMS体系结构、有线电视(CATV)网络改造实现IP通信的基础上,提出CATV网络接入IMS控制的核心网的体系结构。

Since IP multimedia subsystem （IMS） has the characteristic of using SIP as call session to control protocol and being irrelevant to access techniques while providing various services. Some organizations have studied IMS -based NGN, e.g. 3GPP, ETSI and ITU -T. This paper firstly introduces reconstructing CATV to achieve IP - based communication and the architecture of IMS. Then present the architecture of CATV access to IMS controlled core network.