Introduction to IPTV, Technology, Standards Systems
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Introduction to IPTV,
Technology, Standards &
Systems
Nguyen Chan Hung
RDLAB – FET
Hanoi University of Technology
Outline
► Introduction
to IPTV
IPTV Applications
Enabling Technologies
► Architecture
of IPTV
► IMS
IMS--based IPTV
► IPTV Standards – OpenIPTV
► Research Issues & Challenges
► Conclusion
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Introduction to IPTV
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IPTV : Applications
► Digital
► Video
Broadcast TV
on Demand
► Personal
► Network
Media channel (PMC)
based private video
recorder (NPVR)
► Web
Web--
based training
► Addressable
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advertising
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Enabling Technologies
►
Content Protection
►
Codecs:
DRM (Digital Right Management)
Video MPEGMPEG-2,MPEG2,MPEG-4, H264, VC
VC--1
Audio MPEGMPEG-2 AAC, MPEGMPEG-4
►
Transport
RTP / RTCP
UDP
IGMPv3
►
Interactive Control
►
Access Networks
RTSP
xDSL
HFC
FTTH
WiFi/WiMax
3G
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IPTV ARCHITECTURE
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IPTV : Operational Setup
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IPTV : Reception Mechanism
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IPTV OVER DSL
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IPTV OVER FIBRE
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IPTV platform
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IPTV platform (2)
►
Integrated Receiver Devices (IRDs)
These digital devices are used to receive video assets from a number of
different types of networks ranging from satellite links to dedicated video
circuits and microwave links.
Real-Time Encoders
Real► Broadcast TV Streaming Server(s)
► An IP Transcoding System
► Operational and Business Support System (OBSS)
information
►
Process
Subscribers name and address
Billing and payment details
IPTV multicast programs required
IPIP-VoD assets required
Network bandwidth usage required to provide a new service
IP address allocation for a new service
Subscribers desired time for installation and provisioning of new services
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IPTV platform (3)
►
OBSS functionalities:
Generating provisioning requests to the IPTV engineering and installation groups.
Gathering usage information associated with particular types of IPTV services.
Monitoring the status of provisioning requests and update accordingly.
Storing a database of hardware and software resources owned or leased by the service
provider.
Monitoring and managing residential gateways connected over the broadband network to
the IPTV data center.
Managing and supporting content providers.
Managing customer accounts, profiles, and invoicing.
Providing a selfself-service system, which allow subscribers to order new products via a Web
site.
Providing an Internet based Web portal that allows IPTV end users to access information
that will help
►
IPTV CRM System
IPTV Security System
IP Video on Demand (VoD
(VoD)) Application Servers
►
IPTV Headend Middleware and Application Servers
►
►
VoD Server Cluster & Software
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IPTV platform (4)
►
A Network Time Server
IPTV data centers typically use a network time server to allow
synchronization between network components.
►
►
►
IP Switching Infrastructure
A Distribution Router
IP Distribution Network
(1) The IP core is responsible for aggregating all the IP video
content in addition to other types of traffic in a tripletriple-play
environment.
(2) The access or last mile part of the system uses a mix of
technologies such as DSL and WiMAX to bring requested services
to the IPTV end user.
►
IPTVCDs
An abbreviation for IPTV consumer device, an IPTVCD is defined
as a hardware device that typically terminates an IPTV connection.
Examples of IPTVCDs include media center PCs, game consoles,
residential gateways, and IP digital setset-top boxes.
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IMS--based IPTV
IMS
►
Reasons for using an IMS core:
Core service network that is
independent of access
technology
Same application and service is
available from any access
method or device
Ability to migrate and deploy
across fixed and mobile users
Standards allow scalable
deployment of new services
Evolution to combined services
for enhanced user experience
(presence, messaging, address
book)
Security is built in — identity
management, authentication,
authorization, and service
access
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Centralized user profiles
shared between applications
Architecture designed for
scalability and redundancy
Common solution to achieve
quality of service
Flexible charging for
multimedia and combined
services.
► For
interactive features like
voting by short message
service (SMS) for a watched
IPTV program, IMS will
allow service providers to
unify billing as part of a
triple play bundled service.
Common provisioning
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IPTV Evolution
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IMS basics
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IMS Basics
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IMS--IPTV Arch
IMS
►
IMS Core in IPTV Architecture
Terms: WS = Web Services; ESG = Electronics Service Guide
IAP = IPTV application platform
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STB registration Seq Diagram
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Suscription to IPTV Service
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IPTV Standards
►
DVB OVER IP NETWORKS
Digital Video Broadcasting — Internet Protocol Infrastructure (DVB-IPI) [5]
provides a set of technical specifications that cover the delivery of DVB
MPEG-2-based services over bidirectional IP networks, including
specifications of the transport encapsulation of MPEG-2 services over IP
and the protocols to access such services. Another important issue is the
specification of the service discovery and selection (SDS) mechanism for
DVB MPEG-2- based audio/video (A/V) services over bidirectional IP
networks to define the service discovery information, its data format, and
the protocols.
►
ITU-T FG IPTV
ITU-T Focus Group IPTV [6] evaluates IPTV regarding various issues such
as services, architecture, IPTV middleware, security, and so on. It is
expected that IPTV will be included in the next ITU-T NGN
recommendations.
►
ETSI TISPAN IPTV
In TISPAN NGN R2, several specifications address IPTV regarding service
requirements and architectures with a non-IMS IPTV subsystem, as well as
IMS-based IPTV.
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IPTV Standards
►
ATIS IPTV INTEROPERABILITY FORUM
The Alliance for Telecommunications Industry Solutions (ATIS) initiated the IPTV
Interoperability Forum (IIF) that develops standards to enable the
interoperability, interconnection, and implementation of IPTV systems and services,
including video-on-demand and interactive TV services. The ATIS analyzes within
the IIF initiative several important aspects of IPTV and defines the IPTV logical
domains, IPTV reference architectures (IMS- and non-IMS-based IPTV and their
coexistence) [10], content delivery concepts with quality of experience, digital rights
management (DRM) requirements, and interoperability standards, as well as testing
requirements for the components, reliability, and robustness of service components.
►
3GPP MBMS
3GPP specifies multimedia multicast/broadcast service (MBMS) specifications
[11] mainly to define an efficient way to deliver and control multicast and broadcast
services over 3G networks. MBMSs are limited at this moment to mobile TV channel
bandwidth, which is usually up to 200 kb/s. The advantage of MBMS in comparison
with DVB-handheld (DVB-H) is that the same IP-based common infrastructure is
used as for 3G data services.
►
OMA BCAST
The Open Mobile Alliance (OMA) introduces the concept of the mobile broadcast
services enabler to address functional issues that are generic enough to be common
to many broadcast services and that can be defined and implemented in a bearerindependent way.
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OpenIPTV Scope & Interfaces
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Scope of OITF – managed model
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Scope of OITF – Unmanaged model
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OITF Architecture
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Research Issues & Challenges
► IMS
& IPTV integration, architecture
► SOA, Service Compositions
► Multicast for IPTV Apps
► QoE enhancement
► IPTV Security
Content Security, DRM
Network Security
► P2PIPTV
P2P Streaming
P2P VoD
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Conclusion
► IPTV
is the convergence of Media, Internet
and Telecom Industries, leading to the
future ubiquitous environment
► IPTV system is highly complex
► The combination of IMS and IPTV create the
great possibility of new third party valuevalueadded services
► IPTV standards are still ongoing process
► IPTV open a mass number of research
topics in academia.
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Thank you
Q & A ?!
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