Research-based NGN, IPTV progress-NGN, IPTV, Internet - Radio and TV Industry

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Abstract: At present, IPTV is quickly spreading around the world, June 30, 2006, the global IPTV subscribers reach 300 million, double the same period in 2005. ... ...

1, Introduction Present, IPTV The rapid development worldwide, June 30, 2006, the global IPTV subscribers to reach 3 million, double the same period in 2005. Where the largest number of European customers and the fastest growing in 2006, including France Telecom, Telecom Italia, British Telecom has been providing IPTV services, and from the relevant advisory bodies on the forecast and IPTV, IPTV is very optimistic about business prospects. In China, IPTV is also in a positive direction, China Telecom and China Netcom in 6 cities received landing permission IPTV.

However, the lack of standards support, IPTV in the development process are limited to a certain extent, of course, it also includes the contents of the user habits and the lack of such restrictions. To promote the standardization of IPTV to adapt quickly to promote the rapid development of IPTV requirements, including the: MPEG, DVB So, this article combines two of the largest telecommunications and ETSITISPAN International Organization for Standardization ITUFGIPTV the latest research on the progress of IPTV, NGN, IPTV based on the relationship involved into the problem described and analyzed.

2, IPTV and needs definition FGIPTV given IPTV is defined as: IPTV is included in the IP network transmission TV , Video, text, graphics and data to provide QoS / QoE, security, interactivity and reliability to the management of multimedia services. IPTV services need to be able to provide some quality assurance, and to meet the control and interactive control to the relevant requirements.

FGIPTV document in the IPTV business needs specialized needs of the IPTV business requirements and instructions, TISPAN IPTV will be on the demand for study were divided into two documents, namely: to support IPTV services delivery network capacity requirements and integrated NGN IPTV services business and the business layer requirements.

Need to support the IPTV business, FGIPTV and TISPAN's description, though not identical, but you can see all need to support a variety of Broadcasting Business, on-demand business, various interactive services (such as information class, business class, communications, entertainment, learning classes and other interactive services). IPTV services, and will be involved in the four roles were made related needs, including content providers, service providers, network providers and end users. At present our service provider network provider are borne by the operators, content providers, many from Radio The contents of the source.

3, IPTV architecture Architecture for IPTV, the two standards bodies are carrying out research in two ways: A non-architecture based on NGN, IPTV (also known as Non-NGN-BasedIPTV); the other is based on NGN, IPTV architecture ( also known as NGN-BasedIPTV). NGN-based architecture for the IPTV, but also depending on whether re-IMS related features were divided into IMS-based IPTV Architecture (also known as IMS-BasedIPTV) and non-IMS-based IPTV Architecture (also known as Non-IMS-BasedIPTV).

From FGIPTV situation, as IPTV in a unified framework of three working papers in the study, three kinds of structure is basically the synchronization forward, but the proceedings of view, relatively speaking, IMS-BasedIPTV architecture Some discussion was heated. TISPAN is divided into three documents on the IPTV architecture study, namely: IPTV public architecture, IMS-basedIPTV architecture, IPTV architecture-specific subsystems, the three participants in the TISPAN architecture level of performance more obvious enthusiasm, most of the Contributions are for the IMS-BasedIPTV.

Specific research in the two organizations were as follows.
3.1FGIPTV IPTV IPTV architecture document that shows high-level architecture as well as specific IPTV functional architecture. The current high level IPTV architecture output document has two systems, Figure 1 is representative of China proposed IPTV high level architecture diagram.

IPTV representative of China proposed high-level architecture diagram

Content: Responsible for providing IPTV-related content, including IPTV some pretreatment, such as the format conversion, according to the requirements of the content rights management encryption.

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