本文介绍了IPTV的基本概念、特点以及IPTV中的关键技术,基于IMS的IPTV系统架构以及Internet TV。阐述了IPTV中Qos和QoE以及二者的联系与区别,分析了PTV发展中面临的技术挑战。最后,总结了PTV在中国的发展现状,并对其发展前景进行了展望。
This paper first introduces the basic concept of IPTV, its characteristics and key technologies, including IMS-based IPTV system architecture and Internet TV, and then points the correlation and difference between QoS and QoE in IPTV, besides analyzes the technical challenges in IPTV development, and finally summarizes the development of IPTV in China and its development prospects.