0. IPTV Services over IMS

0. IPTV Services over IMS - MORENO LAYOUT 4/23/08 12:43 PM...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
IEEE Communications Magazine • May 2008 128 0163-6804/08/$25.00 © 2008 IEEE I NTRODUCTION Digital television has been evolving for several years. Following the recent evolution in technolo- gy, what started as terrestrial or satellite digital television, now can be delivered over fixed and mobile broadband networks. The deployment of Internet Protocol-based television (IPTV) over different broadband access networks is made possible by the new types of broadband access networks and improved media coding algorithms. Following the deployment of home Internet access services (digital subscriber line [DSL]- based), most of the major European telecom service providers started or plan to start provid- ing triple-play (telephone, Internet access, and IPTV) services. One service package with video, voice, and data services is to be provided by common IP-based networks. Although the IPTV standardization is ongoing, and initial standards were planned to be available at the end of 2007, currently, no real solutions are based on IPTV standardization from the relevant standard bod- ies. The current IPTV services are built on ven- dor-specific platforms without integration with next-generation network (NGN) subsystems. The purpose of our proposed architecture is to inte- grate IPTV in a unified vendor-independent ser- vice platform to reduce operating costs (OPEX) and investment costs (CAPEX). The IP multimedia subsystem (IMS) was introduced by the Third Generation Partnership Project (3GPP) initiative as the architectural subsystem dedicated to control and provide mul- timedia services over a packet-based core net- work within the third generation mobile networks in 3GPP releases 5/6/7 [1], although now IMS also is adopted in the NGN standard- izations. The concept of NGN has been evolving for several years and the first real standardiza- tion activities were started by the International Telecommunication Union (ITU-T) NGN focus group [2] and the European Telecommunica- tions Standards Institute (ETSI) Telecoms and Internet Converged Services and Protocols for Advanced Networks (TISPAN) [3]. ETSI TISPAN employs the IMS concept in its NGN release 1 (NGN R1) within the NGN architec- ture framework. Currently, IMS is widely accept- ed as one of the key platforms for future NGN service composition, orchestration, and delivery. In the ongoing ETSI TISPAN NGN R2, IMS also is used to support IPTV services. ETSI TISPAN extends its NGN R1 architecture to include non-IMS, as well as IMS-based IPTV concepts in its NGN R2 specifications. This article focuses on the evolution of IMS- based NGN platforms enabling the delivery of IPTV services. The remaining sections are orga- nized as follows. We briefly present the current standardization efforts on IPTV platforms. We provide a migration path from current IPTV solutions toward IMS-based IPTV platforms. We describe a functional architecture to extend the IMS platform to support IPTV services. We describe basic IPTV services, and we also pro-
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 8

0. IPTV Services over IMS - MORENO LAYOUT 4/23/08 12:43 PM...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online