IP TV Services and Its Business Potentials
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1 [email protected] IP TV Services and Its Business Potentials Jun Kyun Choi Information and Communications University
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Transcript of IP TV Services and Its Business Potentials
IP TV Services and Its Business Potentials
Jun Kyun Choi
Information and Communications University
ContentsIP TV OverviewIP TV Network and Service ArchitectureIP TV Technical IssuesStandardization Activities of IP TV Focus GroupAppendix
Technical Issues on IP TV Focus Group
IP TV Overview - 1Convergence Service
Broadcasting : Multi-channel broadcasting serviceTelecommunication : interactive Internet service
BroadcastingSector
TelecommunicationSectorIPTV
DataBroadcasting
DMB
Webcasting
Interactivity Broadband
Convergence – Driving Force Driving force of the convergence
Digital Broadcasting / Broadband CommunicationAccelerated Convergence between Broadcasting and Communication
Emergence of New Media – Necessity of Technical Developments
Expectation of Explosive Mass MarketKey Points of Convergent Service: Convenience, Economical Efficiency, Security (IPMP), Quality, etc.
IP TV Overview - 2
ContentsAV, InteractiveMulti-channel
ContentsContentsAV, InteractiveMulti-channel
TerminalPDR, PC, PDA, CellPhone, DMB
TerminalTerminalPDR, PC, PDA, CellPhone, DMB
NetworksBroadband, Internet, Mobile, WLAN, Wibro
NetworksNetworksBroadband, Internet, Mobile, WLAN, Wibro
Media(T-, C-, S-) * (DTV, DMB)
MediaMedia(T-, C-, S-) * (DTV, DMB)
ConsumerActive, Smart, Nomadic
Personal Need
ConsumerConsumerActive, Smart, Nomadic
Personal Need
DefinitionService or technology providing multimedia contents to existing TV via IP (Internet Protocol) based networkOne of communications-broadcasting convergence serviceSimilar to iTV (Interactive TV) in service perspective
IP TV Overview - 4
Digital TV channel : real time provisioning of SD and HD quality TVT-Channel
Video On Demand
T-Commerce
Stock Market Service
SVOD TV-VOD
Interactive Advertisement (i-AD) : TV banner, DAL, PIP Advertisements
Shopping : TV Mall, Auction, home shopping
T-Banking
Information Services : Weather, Traffic, News, Movie/Theater Ticket, Cooking/Entertainments
T-Interactive Game : Networked game service by using TV terminals
TV Voting : TV Survey, TV Quiz, TV Karaoke, etc.
e-Learning
Video Telephony : Video Telephony and Conference by using TV terminals
T-CommunicationT-Mail : Email by using TV terminals
Digital Audio channel
TV Messaging : Messaging service by using TV, PC, and Mobile terminals
SMS (Short Message Service)
ContentsServices
Category of IP-TV Services
IP TV System ArchitectureGateway
STBHome NWing Capabilities
xDSLFTTx
Distribution w/ multicast
Video stream in various format
FollowingQoS indications
Encode and store content
Multicast Delivery Architecture of DSL Forum
STM-1Unicast traffic for a
single DSLAM
STM-4Multicast video traffic
STM-4
GBE links
Unicast SourcesMulticast Sources
Multicast Bundle
Selected Channel
IGMP Request
BRAS
ATM
NGNA Broadband Roadmap
Packaged Services
Packaged ServicesCore
TechnologyCore
Technology
New Service OfferingsWin-Win Business PlanFuture-proof Architecture
Multimedia Services
DOCSIS 2.0Symmetric services
DOCSIS®PacketCable™CableHome™
Personalized Services
Key Technologies and StandardsOrgStandardTech
DSL ForumDSL Forum Tech Report TR-069(CPE WAN Mgmt Protocol)
Network Management
IEEEIEEE 802.1p QoS, IEEE 802.1q VLAN, CEA2007 VLAN MappingQoS
IETFRTSP (Real Time Streaming Protocol) (RFC2326)RTP/RTCP and SDP
Transport Protocol
IETFIGMPv2 and IGMPv3 (RFC 3376)IP Multicast
ITU-T, IETFH.264 and MPEG seriesCodec
ITU-T,DSL Forum
ITU-T NGN RecommendationsDSL Forum Tech Report: TR-058 and TR-094
Architecture
ITU-TADSL, VDSL, FTTC/FTTHAccess Tech
Protocol Layer Model for IP TV Transport
Cable(DOCSIS)
IP
UDP/TCP
RTP, MPEG-TS
VideoStream
(H.264, MPEG-4)
AudioStream
(MPEG-4)Data
(XHTML,GIF, JPEG)
ADSL/VDSL
FTTH/PON
Wireless(3G/4G,WLAN)
SatelliteEthernet
IMS based IP TV Service
Video Head EndVideo Head End• Encoders• Middleware Servers• VoD Servers
Access NetworkAccess Network
PremisesPremises
Core Network(MPLS)
AggregationNetwork
STBRG
STB
DSLAM
DataDataServersServers
•Radius•DHCP, DNS, ENUM•Admin•Etc.
Calling PartyCalling PartyHome NetworkHome Network
HSSHSS
SIP
SIP
ASASASAS
RACSRACS
SS--CSCFCSCF
PP--CSCFCSCF
Video MiddlewareVideo MiddlewareApplicationsApplications
Managed IMS
Internet
II--CSCFCSCF
1. SIP INVITE arrives from a visited Network to the terminating callers S-CSCF
1
2. S-CSCF uses filter criteria to forward INVITE to Video Middleware Server
2
3. Middleware Server decodes INVITE to determine Calling/Called numbers for delivery to STB
3
2
Technologies for Mobile BroadcastingDVB-H (Digital Video Broadcasting – Handheld)
Specified by ETSIDVB-T-based single frequency network, 5 ~ 12 MbpsNeeds Back-channel (e.g., GPRS for interaction)
MBMS (Multimedia Broadcast/Multicast Service)Specified in 3GPP Release 6Use existing UMTS infrastructure 64 – 384 kbps
DMB based IP TVDigital Multimedia Broadcasting
AV services through DAB-T frameworkFrom ‘listening’ to ‘watching while listening’
Small sized TV, PDA receivers and mobile phonesComplementary to DTV
Mobile Multimedia Broadcasting over terrestrial DAB framework
Changed from analogue to digital radio
Mobile broadcasting
CD quality audioWeather/ Stock informationT-commerce
Text & data service
Traffic info & Navigation
T-DMB Service Scenario
Service provider
Additional info provider
TV studio
Radio Studio
GPS
Service transmission Network(IP/Data network) 휴대
이
Fixed receiver
Mobile terminalTerminal for moving ones
Mobile communication network
Service Delivery PathProvision of mobile multimedia (audio/video/data) broadcasting services at anytime, anywhere with any device
T-DMB in Converged Network Environments
Forward Link (Main Channel): Broadcast NetworkBackward Link (Return Channel): Wireless Network
IP Backbone
T-DMB
S-DMB
CellularWiBro WLAN
suburb downtown in-building
Mega CellMacro Cell
Micro CellPico Cell
ContentsEffects of IP TV over NGNStudy Items on IP TV over NGNLimitation of current solutionsStage Procedures of IP TV over NGN
Effects of IP TV over NGNMarket Effects
Converge Broadcast Industry into Telco IndustryPersonalization of TV ServiceOne of killer application of Broadband convergence Network
Internet Protocol Effectscommon platform for transport and service
Technology EffectsReal multimedia transport over Broadband converged Network with QoS and mobilityIntegrate communication, computer, and electronics technologies for IP TV
Regulatory EffectsContent-based or usage-based charging will be realizedFair Trading between various providers of Information value chainFrequency allocation for IP TV, DMB, and Wireless LAN/MAN/WAN
Goals of IPTV Focus Group Definition of IPTV
Identification of scenarios, drivers and relationships with other services and networks Identify requirements and define framework architecture
Review and gap analysis of existing standards and ongoing works
Identification of opportunities for ITU-T Identification of activities that ITU-T would encourage other organizations to pursue
Coordination of existing standardization activities Harmonization of the development of new standards Encourage interoperability with existing systems where possible
IPTV FG Topics - 1Architecture and Requirements
Scenarios and driversRequirements Service definitionsArchitectureRelationships with other services and networks
QoS and Performance AspectsQoSQoEPerformanceTraffic management
IPTV FG Topics - 2Service Security and Contents Protection Aspects
Content security Digital Rights managementContent protectionSecurityAuthenticationAuthorization
Network and Control AspectsControl protocol & SignallingNaming, addressing, and identification aspectsRouting and multicast session control Content distribution
IPTV FG Topics - 3End Systems and Interoperability aspects
Implementation scenarios and applicationsTerminalsConsumer domain (home & extensions)Remote management
Middleware and Application Platforms– Enhanced EPG, Channel and Menu Processing – DBM (Digital Broadcasting Middleware)– Audio and Video coding– Metadata – Content Discovery
Limitation of Current Solutions - 1Limitations of Internet-based IP TV Solution
No End-to-End QoS and no monitoringNo flow handling mechanism to deliver transport QoSNo admission control based on traffic monitoring and measurements
Performance and Scalability problems of multicast protocolNumber of subscribers per one multicast servers ?
− Relying on performance of Multicast router and ServerMulticasting domain and coverage of single multicast server
No operational rule of IP protocolsOnly IGMPv2 snooping and Multicast tunneling on IPv4No operational rule of multicast addressing, naming, and URL, etc.Multicast IPv6 is not ready
− Multicast user support, SLA, billing and security, etc.− IGMPv3, MLDv1/v2, PIM/GARP/…for SSM, IPv6− Multicast Source Discovery Protocol (MSDP)− Multicast routing for redundancy of Rendezvous Point (RP)
Limitation of Current Solutions - 2Limitation of IMS-based IP TV Solutions
Scalability of CSCF for Multicast Domain and GroupNumber of multicast session for Switched video/TV broadcastDigital simulcast of live TV via IP multicast
Mobility of Multicast SessionHow to join the same multicast channel during handover
Walled Garden Business of IP TV ?3rd party IP TV service provider ? Personalized IP TV Service Provider ?
Problems on IPv6 ProtocolsNo Performance, protocol, and operational rules, etc.
Limitation of Current Solutions - 3Limitation of Cable-based IP TV Solutions
No mechanism of Multicast QoS and traffic monitoring, etc.Problems on network operation and managements
Join/Leave, Monitoring or Tracking of Source or Multicast ListenersNo explicit acknowledgment of establishment of Multicast sessions
Multicast MAC address from a CMTS-allocated poolAddress aliasing/overlap on VPN, IP →MAC, SSM
Security ProblemsBaseline Privacy Interface (BPI) extensions that allow encryption of multicast sessionsIGMP snooping in the cable modem (CM) that is used to trigger the BPI exchange for multicast
Problems on IPv6 ProtocolsIGMP support for IGMPv3, SSM, Generic Attribute Registration Protocol (GARP), GARP Multicast Registration Protocol (GMRP) or Multicast Listener Discovery (MLD)
Stage Procedures of IP TV Standardization1st stage (End of 2006) : Solve the urgent market demands and interoperability problem
Possible functional architecture and service deployment scenariosAvailable Protocol and interface specifications
2nd stage (End of 2007) : Solve the outstanding technical issues on QoS, Mobility, Security, Charging, etc.
Provide end-to-end QoS, network/application securityProvide usage-based charging, etc.
3rd stage(2008 ~): solve the on-going technical issues and business convergence scenarios
Develop protocols and service scenarios with voice and video encoding and security optionsExtend NGN capabilities for IP TV service in terms of location, QoScontrol, navigation, directory, processing, and storaging, etc.
Stage Procedures of IP TV Standardization
Various multimedia business modelsConverged business modelsBased on existing service
provider environmentsOperations & Managements
Converged business scenarios and protocols
Support the release 2 requirements and open
architecture
Available solutions by using the existing systems and
technologies
Service Scenarios &
Protocols
Capabilities to support various IP TV scenarios
Release 2 capabilities on interactive controls and
multimedia features
Alignment with NGN Release 1Requirements
Consider new system and technology evolution
Converged solutions from near-term market demands
Minimum interoperability among different solutions
Remarks
Converged architecture Open architecture for different scenarios
Alignment with the existing NGN-FRA
Network & Service
Architecture
Support various IP TV business solutions
Solve Technical Problems for Converged Transport
and Service
Minimum integrations among different solutions
Overall Services
3rd Stage(2008 ~ )
2nd Stage(2007)
1st Stage(~ 2006)
Study Issues on Architecture and Requirements for IP TV - 1
Service definitionsBased on end user terminal and applications
TV-based, PC-based, Mobile Handheld-based, etc.Based on add-on capabilities
With Telco- applications (e.g., PSTN/ISDN Simulation, VoIP/MMoIP, SMS, etc.)With Internet-based applications (e.g., Web, Email, Browsing, etc.)With Computer and Consumer-based applications (e.g., Client/Server processing, Storaging Server, Camcoder, PVR, etc.)With middleware platform
− Web-based (W3C) , Telco-based (Parlay/Parlay-X, OMA), Cable-based (DOCSIS), Home Network-based (OSGi), etc.
→ Stage Approaches based on Capabilities Sets and Evolution of End User Applications and Terminals
→ Stage Approaches based on Capabilities Sets and Evolution of End User Applications and Terminals
Study Issues on Architecture and Requirements for IP TV - 2
Business Scenarios and DriversBased on network providers
Access scenario with negotiations of SLA and billing options− Identify user and terminal profiles with AAA − SLA negitation with QoS, security and mobility
Based on service providers and middleware platformAccess and Join Scenario for IP TV portal, IP TV Service Broker/Agents
− with add-on features of IP TV services (e.g., VoIP, Email, SMS, etc.)Basic Scenario of menu handling, channel japping, media conversion and processing, naming/directory and storage, and query/navigation, etc.Add-on Scenario combined with other networking capabilities (e.g., location and presence information, etc.)
Based on Content ProvidersVideo/Audio materials including meta-data, XML-based, Java-based, etc.
Based on Application Provider or Consumersdepending on home network elements and scenario for Intelligent HomeScenario with Add-on features (e.g., Virtual Home Environments)Network-assisted and application-assisted IP TV menu handling scenarios Scenario on heterogeneous fixed and wireless terminal types for seamless connection
Study Issues on Architecture and Requirements for IP TV - 3
Requirements & ArchitectureBased on network elements
IP/NGN-based: Router, Switch, CSCF system, NAAS/DHCP/AAA Server, Multicast Server, IP TV STB, IP TV Web Portal Server, Storage Server, Softswitch, Edge system including NAT/PT and Firewall, etc.Mobile-based: GGSN/SGSN, CSCF, location database, etc.Cable-based: CMTS, cable STB, HE, VoD Server, etc.
Based on middleware and Service architectureDistributed Client/Server platform, various Agents/Brokers, Java-based, XML-based, , OSGi-based, DOCSIS-based, CableHome-based, etc.
Relationships with other services and networksInterworking with existing PSTN/ISDN and 2G/3G network, cable TV network, VoIP network, Global Grid network for IP TV, etc.Roaming and interworking with heterogeneous network environments
Including service roaming for service continuity across different administrative domains as well as transport connectivityWith security and billing options
Study Issues on QoS and Performance Aspects for IP TV
QoSfor End-to-End QoS, End-to-Edge QoS, Edge-to-Server QoS, and Server-to-Server, etc.
Among customer network domain, access domain, core network domain, server domain, portal/broker/agent domain, content domain, etc.QoS apportionments depending on processing and storaging performances for MPEG encoding/decoding
Extend from Y.1541QoE
Define QoE metric values (like R-values at VoIP) Performance & Traffic management
Availability in case of failures of link, network elements, and server, etc.Bandwidth management at access domain, core and server domainTraffic and Congestion control based on network and application protocolPerformance on media conversion/processing including lip synchronization, storaging and navigationPerformance for menu handling, channel control, advertisement and paging, etc.
Study Issues on Service Security and Contents Protection Aspects for IP TV
Content SecurityCombined with business scenarios of network provider and service provider
Separation between public free materials and secured materialsOptionally selectable depending on materials
Digital Rights Management & Content protectionVarious options depending on middleware and application platform
Authentication & AuthorizationWith helps of NACF for user/terminal identifications and service profilesAlignment with NGN Security requirements
DOS Attacks, Password control or ID card, etc.Digital Right Management and CAS (Conditional Access System)Security models according to information value chain
Security for Multicast VPN and multicast groupProprietary STB system information and crypto key distribution
Study Issues on Network and Control Aspects for IP TV - 1
Three different scenarios depending on network environments
IMS-based service scenario (e.g., ITU-T NGN, 3GPP)Based on the NGN architecture for integrated fixed and wireless networkBased on PSTN/ISDN, IP and 3GPP/IMS protocols, etc.
Internet-based IP TV service scenario (e.g., IETF)Based on the Internet architectureBased on IP protocols including PIM/SSM, IPv4 and IPv6, etc.
Cable-based service scenario (e.g., NGNA)Based on the cable TV networksBased on DOCSIS, etc.
Study Issues on Network and Control Aspects for IP TV - 2
Control protocol & Signalling ArchitecturesMulticast functional architecture at transport stratum
Multicast and distribution control function, gateway and media processing function, admission and attachment control functions,resource control function, mobility control functions, etc.
Multicast functional architecture at service stratumMulticast session control function, Multicast service control function, multicast media gateway and broker functions multicast group control function, Menu control, service type control, multicast user and service profile functions, multicast AAA functions,, application control functions, etc.
→ In alignment with NGN functional architecture
Study Issues on Network and Control Aspects for IP TV - 3
Naming and Addressing, Identification of IP TV serviceIdentification of Source or Distributor for IP TV
By using IPv6 multicast, anycast addressBy using URL name (e.g., http://www.kbs.iptv)By using E.164 number (e.g., specific prefix like 0x0)
Identification of IP TV ClientsBy using IPv6 unicast (or multicast/anycast) address and E.164
− combined with MAC, EUI-64, Email address, host identifier, or special code, etc.
Identification of IP TV Program and Service MenuBy using the URL, E.164, special code
Group Naming and Addressingmulticast, anycast IPv4/IPv6 addressE.164-basedURL/XML-based
Study Issues on Network and Control Aspects for IP TV - 4
Transport and Access Scenarios Various Access Scenarios for Multicast
FTTH/PON-based, ADSL/VDSL-based− Multicast over xDSL
• xDSL/ATM IP Multicast solutions rely on static mapping of IP multicast addresses and ATM PVCs
Wireless LAN/MAN-based, HSPDA-based, DMB-based Cable-based (e.g., HFC)
Core Transport Scenarios for MulticastBy static topological configurations By PIM-SM, -DM routing algorithmBy CDN, P2P distributed environments
Interface Protocols of UNI, NNI, and SNIIP-based Protocol: IGMP, ICMPv6, etc.Cable-based Protocol: DOCSIS 2.0/3.0MPEG-based Protocol: XML or Java (handling of Metadata)
Study Issues on Network and Control Aspects for IP TV - 5
Multicast VPN including Multicast Group Management Layer 3 VPN: separate VPN group by using multicast/anycast addressLayer 2 VPN: how to identify Multicast MAC or Ethernet address ?Layer 4 ~ 7 VPN: Mobile Multicast VPN for VHE
Multicast Service ModelsAny Source Multicast (ASM)
Receiver joins to a Multicast groupUses IGMPv2Supported in DOCSIS 1.1
Source Specific Multicast (SSM)Receiver joins explicitly to source sending to a Multicast groupRequires IGMPv3* (backward compatible with IGMPv2)Proposed to be supported in DOCSIS 3.0
Study Issues on Network and Control Aspects for IP TV - 6
Routing and multicast session control Multicast transport at access network
including IGMP/ICMPv6Consider mobile environments for seamless handover
Multicast transport at core networkStatic/Provisioned multicast session control by policy-based multicast routing
− configure Rendezvous Point for resource and performance optimization Dynamic multicast session control by IMS session control with multicast QoS routingForwarding logics for multicast group
Network Configuration and OperationPlacement of rendezvous point (RPs), operations, and troubleshooting of RPsOperations of BSR or Auto RP protocols for RP redundancyAlternatively, static configuration of RPs and set up of MSDP-mesh groups for anycast-RPOperations of MSDP between administrative domainsTroubleshooting of PIM-SM protocol elements such as RPT/SPT switchover and register tunnel encapsulation
Provisioning of IP TV Services SLA Negotiation between Customers and Service Providers
Maintain QoS, availability, and securityContracts between Service Providers and Contents Owners
Deal with copy wright and ownerships
Join/Leave ProceduresAny or Specific IP TV Service Providers, and agent/brokerAny or Specific IP TV Portal sites Any or Specific IP TV menusAny or Specific IP TV contents
CustomerCustomer
ContentOwner, Creator
Study Issues on Network and Control Aspects for IP TV - 7
Multicast Service Providers ContentOwner, CreatorCustomer
ContentOwner, Creator
Study Issues on Network and Control Aspects for IP TV - 8
Charging for IP TV over NGNSupport various business model including the usage-based chargingBilling Structure including CDRGroup charging for specific VPN
Operating and Administrative DomainsTransport carriers, service providers, content providers, and 3rd party provider
according to classifications of information/service value chains, etc.Various operations and management environments
Subscriber management, multicast session and VPN management, service management, content source management, security management, charging and billing, including FCAPS, etc.
Regulatory Issues for Multicast ServicesFrequency bandwidth allocation For DMB and IP TV
including geographical coverage and administrative domainSpecial number of E.164Specific code for IPv6 multicast and anycast
Study Issues on End Systems and Interoperability aspects for IP TV
Implementation scenarios and applicationsStep-wise approaches of market demands and technical feasibility Available services
Personal Video Recorder (PVR), Video on Demand (VOD), Electronic Programming Guide (EPG), E-mail/Internet access, T-commerce, Enhanced programming, Voice over IP (VoIP) and Instant Messaging (IM), Updating services intelligently
TerminalsIP set-top boxCable STB-basedMobile Hand Set-basedTelematics-basedMMoIP, VoD/NVoD, and Interactive TV, etc.
Consumer domain (home & extensions)Customer premises network or home network including ubiquitous , etc.Enterprise or business network
Remote management
Study Issues on Middleware and Application Platforms for IP TV - 1
Enhanced EPG, Channel and Menu ProcessingChannel JappingScroll over the TV schedule for the available channels and reading for spot or special service offersType of channels (Free Channels, Pay TV channel, Channel dedicated to events, etc.)
DBM (Digital Broadcasting Middleware)Audio and Video coding
Consider Intellectual Properties on MPEG and various platform, etc.H.264, H.323, G.7xx, SIP, and MPEG etc.
MetadataContent Discovery
How to upload individual contents ?Automatic discovery of multimedia contents (e.g., P2P)
Study Issues on Middleware and Application Platforms for IP TV - 2
Middleware and Application PlatformsJava-based, XML-based, GUI-based, Plug-in-Play, etc.
Service/Application Platform Web-based (e.g. XML, Java, etc.)TV-based, Mobile-basedConsumer electronics-based
Middleware architectures Intermediate Agent/Service BrokersMiddleware platformsStorage and Database Server
