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IP TV Services and
    Its Business Potentials
              Jun Kyun Choi


Information and Communications University


 ...
Contents
 IP TV Overview
 IP TV Network and Service Architecture
 IP TV Technical Issues
 Standardization Activities of IP...
IP TV Overview



             jkchoi@icu.ac.kr   3
IP TV Overview - 1
 Convergence Service
   Broadcasting : Multi-channel broadcasting service
   Telecommunication : intera...
IP TV Overview - 2
 Convergence – Driving Force
    Driving force of the convergence
         Digital Broadcasting / Broad...
IP TV Overview - 4
Definition
   Service or technology providing multimedia contents to existing TV via IP
   (Internet Pr...
IP TV Overview - 5
 IPTV Roles




                     jkchoi@icu.ac.kr   7
IP TV Overview - 6
 Business Roadmap




                     jkchoi@icu.ac.kr   8
Category of IP-TV Services
       Services                                     Contents
                    SMS (Short Mes...
IP TV Network and Service
      Architecture




                     jkchoi@icu.ac.kr   10
IP TV System and Service Model




                                 jkchoi@icu.ac.kr   11
IP TV System Architecture
                  Video stream
                                                                G...
Multicast Delivery Architecture of DSL Forum
    Unicast Sources
                                                         ...
Multicast-enabled Cable Network




                              jkchoi@icu.ac.kr   14
Data Over Cable Reference Architecture




                               jkchoi@icu.ac.kr   15
IPTV Home Distribution Scenario




                       Source) ITU Full Service VDSL Model

                          ...
H.264 & IPTV Over DSL
 IP video over DSL architecture




                                  jkchoi@icu.ac.kr   17
NGNA Broadband Roadmap

   New Service Offerings
   Win-Win Business Plan        Multimedia
   Future-proof Architecture  ...
IP TV Technical Issues




                   jkchoi@icu.ac.kr   19
IPTV Functions




                 jkchoi@icu.ac.kr   20
Key Technologies and Standards
    Tech                                Standard                          Org

 Access Tech...
Protocol Layer Model for IP TV Transport

            Video            Audio
           Stream            Stream
         ...
IP TV: Multicast Scenario




                            jkchoi@icu.ac.kr   23
IMS based IP TV Service
                                             Calling Party
                                       ...
Technologies for Mobile Broadcasting
 DVB-H (Digital Video Broadcasting – Handheld)
   Specified by ETSI
   DVB-T-based si...
Reference architecture of Multimedia
Broadcast/Multicast Service (MBMS) in 3GPP




                                  jkch...
3GPP Logical MBMS Architecture




                            jkchoi@icu.ac.kr   27
General Mobile Streaming Platform of DVB-H




                                      jkchoi@icu.ac.kr   28
DMB based IP TV
  Digital Multimedia Broadcasting
         AV services through DAB-T framework
                  From ‘lis...
T-DMB Service Scenario
   Service Delivery Path
         Provision of mobile multimedia (audio/video/data) broadcasting se...
T-DMB in Converged Network Environments
 Forward Link (Main Channel): Broadcast Network
 Backward Link (Return Channel): W...
Standardization Activities of
    IP TV Focus Group




                         jkchoi@icu.ac.kr   32
Contents
 Effects of IP TV over NGN
 Study Items on IP TV over NGN
 Limitation of current solutions
 Stage Procedures of I...
Effects of IP TV over NGN
 Market Effects
    Converge Broadcast Industry into Telco Industry
    Personalization of TV Se...
Goals of IPTV Focus Group
 Definition of IPTV
   Identification of scenarios, drivers and relationships with other service...
IPTV FG Topics - 1
Architecture and Requirements
  Scenarios and drivers
  Requirements
  Service definitions
  Architectu...
IPTV FG Topics - 2
 Service Security and Contents Protection Aspects
   Content security
   Digital Rights management
   C...
IPTV FG Topics - 3
 End Systems and Interoperability aspects
      Implementation scenarios and applications
      Termina...
Limitation of Current Solutions - 1
 Limitations of Internet-based IP TV Solution
   No End-to-End QoS and no monitoring
 ...
Limitation of Current Solutions - 2
 Limitation of IMS-based IP TV Solutions
   Scalability of CSCF for Multicast Domain a...
Limitation of Current Solutions - 3
 Limitation of Cable-based IP TV Solutions
   No mechanism of Multicast QoS and traffi...
Stage Procedures of IP TV Standardization
 1st stage (End of 2006) : Solve the urgent market demands
 and interoperability...
Stage Procedures of IP TV Standardization
                        1st Stage                     2nd Stage                 ...
(Appendix)
Technical Issues on IP TV Focus Group




                              jkchoi@icu.ac.kr   44
Study Issues
on Architecture and Requirements for IP TV - 1
  Service definitions
     Based on end user terminal and appl...
Study Issues
on Architecture and Requirements for IP TV - 2
  Business Scenarios and Drivers
     Based on network provide...
Study Issues
on Architecture and Requirements for IP TV - 3
  Requirements & Architecture
     Based on network elements
 ...
Study Issues
on QoS and Performance Aspects for IP TV
  QoS
     for End-to-End QoS, End-to-Edge QoS, Edge-to-Server QoS, ...
Study Issues
on Service Security and Contents Protection Aspects for IP TV
  Content Security
     Combined with business ...
Study Issues
on Network and Control Aspects for IP TV - 1
  Three different scenarios depending on network
  environments
...
Study Issues
on Network and Control Aspects for IP TV - 2
  Control protocol & Signalling Architectures
    Multicast func...
Study Issues
on Network and Control Aspects for IP TV - 3
  Naming and Addressing, Identification of IP TV service
    Ide...
Study Issues
on Network and Control Aspects for IP TV - 4
   Transport and Access Scenarios
     Various Access Scenarios ...
Study Issues
on Network and Control Aspects for IP TV - 5
  Multicast VPN including Multicast Group Management
    Layer 3...
Study Issues
on Network and Control Aspects for IP TV - 6
  Routing and multicast session control
     Multicast transport...
Study Issues
on Network and Control Aspects for IP TV - 7
  Provisioning of IP TV Services
     SLA Negotiation between Cu...
Study Issues
on Network and Control Aspects for IP TV - 8
  Charging for IP TV over NGN
     Support various business mode...
Study Issues
on End Systems     and Interoperability aspects for IP TV
  Implementation scenarios and applications
     St...
Study Issues
on Middleware and Application Platforms for IP TV - 1
  Enhanced EPG, Channel and Menu Processing
     Channe...
Study Issues
on Middleware and Application Platforms for IP TV - 2
  Middleware and Application Platforms
     Java-based,...
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Transcript of "IP TV Services and Its Business Potentials"

  1. 1. IP TV Services and Its Business Potentials Jun Kyun Choi Information and Communications University jkchoi@icu.ac.kr 1
  2. 2. Contents IP TV Overview IP TV Network and Service Architecture IP TV Technical Issues Standardization Activities of IP TV Focus Group Appendix Technical Issues on IP TV Focus Group jkchoi@icu.ac.kr 2
  3. 3. IP TV Overview jkchoi@icu.ac.kr 3
  4. 4. IP TV Overview - 1 Convergence Service Broadcasting : Multi-channel broadcasting service Telecommunication : interactive Internet service Broadcasting Telecommunication IPTV Sector Sector Data Broadcasting Interactivity DMB Broadband Web casting jkchoi@icu.ac.kr 4
  5. 5. IP TV Overview - 2 Convergence – Driving Force Driving force of the convergence Digital Broadcasting / Broadband Communication Accelerated Convergence between Broadcasting and Communication Emergence of New Media – Necessity of Technical Developments Media Media (T-, C-, S-) * *(DTV, DMB) (T-, C-, S-) (DTV, DMB) Contents Consumer Consumer Terminal Contents Terminal AV, Interactive Active, Smart, Nomadic Active, Smart, Nomadic PDR, PC, PDA, AV, Interactive PDR, PC, PDA, Multi-channel Personal Need Personal Need CellPhone, DMB Multi-channel CellPhone, DMB Networks Networks Broadband, Internet, Broadband, Internet, Mobile, WLAN, Wibro Mobile, WLAN, Wibro Expectation of Explosive Mass Market Key Points of Convergent Service: Convenience, Economical Efficiency, Security (IPMP), Quality, etc. jkchoi@icu.ac.kr 5
  6. 6. IP TV Overview - 4 Definition Service or technology providing multimedia contents to existing TV via IP (Internet Protocol) based network One of communications-broadcasting convergence service Similar to iTV (Interactive TV) in service perspective jkchoi@icu.ac.kr 6
  7. 7. IP TV Overview - 5 IPTV Roles jkchoi@icu.ac.kr 7
  8. 8. IP TV Overview - 6 Business Roadmap jkchoi@icu.ac.kr 8
  9. 9. Category of IP-TV Services Services Contents SMS (Short Message Service) TV Messaging : Messaging service by using TV, PC, and Mobile terminals T-Communication T-Mail : Email by using TV terminals Video Telephony : Video Telephony and Conference by using TV terminals 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 Interactive Advertisement (i-AD) : TV banner, DAL, PIP Advertisements Shopping : TV Mall, Auction, home shopping T-Commerce T-Banking Stock Market Service Video On Demand TV-VOD SVOD Digital TV channel : real time provisioning of SD and HD quality TV T-Channel Digital Audio channel jkchoi@icu.ac.kr 9
  10. 10. IP TV Network and Service Architecture jkchoi@icu.ac.kr 10
  11. 11. IP TV System and Service Model jkchoi@icu.ac.kr 11
  12. 12. IP TV System Architecture Video stream Gateway Encode and in various format Distribution xDSL STB store content Following w/ multicast FTTx Home NWing Capabilities QoS indications jkchoi@icu.ac.kr 12
  13. 13. Multicast Delivery Architecture of DSL Forum Unicast Sources Multicast Sources Multicast Bundle GBE links Selected Channel IGMP Request BRAS STM-1 Multicast video traffic Unicast traffic for a single DSLAM ATM jkchoi@icu.ac.kr 13
  14. 14. Multicast-enabled Cable Network jkchoi@icu.ac.kr 14
  15. 15. Data Over Cable Reference Architecture jkchoi@icu.ac.kr 15
  16. 16. IPTV Home Distribution Scenario Source) ITU Full Service VDSL Model jkchoi@icu.ac.kr 16
  17. 17. H.264 & IPTV Over DSL IP video over DSL architecture jkchoi@icu.ac.kr 17
  18. 18. NGNA Broadband Roadmap New Service Offerings Win-Win Business Plan Multimedia Future-proof Architecture Services Core Packaged Packaged Core Services Technology Technology Services Personalized Services DOCSIS® PacketCable™ DOCSIS 2.0 CableHome™ Symmetric services jkchoi@icu.ac.kr 18
  19. 19. IP TV Technical Issues jkchoi@icu.ac.kr 19
  20. 20. IPTV Functions jkchoi@icu.ac.kr 20
  21. 21. Key Technologies and Standards Tech Standard Org Access Tech ADSL, VDSL, FTTC/FTTH ITU-T ITU-T NGN Recommendations ITU-T, Architecture DSL Forum Tech Report: TR-058 and TR-094 DSL Forum Codec H.264 and MPEG series ITU-T, IETF IP Multicast IGMPv2 and IGMPv3 (RFC 3376) IETF Transport RTSP (Real Time Streaming Protocol) (RFC2326) IETF Protocol RTP/RTCP and SDP IEEE 802.1p QoS, IEEE 802.1q VLAN, CEA2007 VLAN QoS Mapping IEEE Network DSL Forum Tech Report TR-069 DSL Forum Management (CPE WAN Mgmt Protocol) jkchoi@icu.ac.kr 21
  22. 22. Protocol Layer Model for IP TV Transport Video Audio Stream Stream (H.264, MPEG-4) (MPEG-4) Data (XHTML, RTP, MPEG-TS GIF, JPEG) UDP/TCP IP Wireless ADSL/ FTTH Cable Ethernet (3G/4G, Satellite VDSL /PON (DOCSIS) WLAN) jkchoi@icu.ac.kr 22
  23. 23. IP TV: Multicast Scenario jkchoi@icu.ac.kr 23
  24. 24. IMS based IP TV Service Calling Party Home Network Video Middleware AS Applications 3 SIP 2 Premises HSS S-CSCF 2 I-CSCF 1 •Radius SIP Data •DHCP, DNS, ENUM Access Network Servers •Admin P-CSCF •Etc. RACS Managed IMS Core Network STB (MPLS) Aggregation Internet RG Network Video Head End STB DSLAM • Encoders • Middleware Servers • VoD Servers 1. SIP INVITE arrives from a visited Network 3. Middleware Server decodes INVITE to to the terminating callers S-CSCF determine Calling/Called numbers for delivery to STB 2. S-CSCF uses filter criteria to forward INVITE to Video Middleware Server jkchoi@icu.ac.kr 24
  25. 25. Technologies for Mobile Broadcasting DVB-H (Digital Video Broadcasting – Handheld) Specified by ETSI DVB-T-based single frequency network, 5 ~ 12 Mbps Needs Back-channel (e.g., GPRS for interaction) MBMS (Multimedia Broadcast/Multicast Service) Specified in 3GPP Release 6 Use existing UMTS infrastructure 64 – 384 kbps jkchoi@icu.ac.kr 25
  26. 26. Reference architecture of Multimedia Broadcast/Multicast Service (MBMS) in 3GPP jkchoi@icu.ac.kr 26
  27. 27. 3GPP Logical MBMS Architecture jkchoi@icu.ac.kr 27
  28. 28. General Mobile Streaming Platform of DVB-H jkchoi@icu.ac.kr 28
  29. 29. DMB based IP TV Digital Multimedia Broadcasting AV services through DAB-T framework From ‘listening’ to ‘watching while listening’ Small sized TV, PDA receivers and mobile phones Complementary to DTV Mobile Multimedia Broadcasting over terrestrial DAB framework Changed from analogue to digital radio Weather/ Stock CD quality audio information T-commerce Mobile broadcasting Text & data service Traffic info & Navigation jkchoi@icu.ac.kr 29
  30. 30. T-DMB Service Scenario Service Delivery Path Provision of mobile multimedia (audio/video/data) broadcasting services GPS at anytime, anywhere with any device Radio Studio Service transmission Network Fixed receiver (IP/Data network) TV studio Service provider Terminal for moving ones Mobile terminal Additional info provider Mobile communication network jkchoi@icu.ac.kr 30
  31. 31. T-DMB in Converged Network Environments Forward Link (Main Channel): Broadcast Network Backward Link (Return Channel): Wireless Network jkchoi@icu.ac.kr 31
  32. 32. Standardization Activities of IP TV Focus Group jkchoi@icu.ac.kr 32
  33. 33. Contents Effects of IP TV over NGN Study Items on IP TV over NGN Limitation of current solutions Stage Procedures of IP TV over NGN jkchoi@icu.ac.kr 33
  34. 34. Effects of IP TV over NGN Market Effects Converge Broadcast Industry into Telco Industry Personalization of TV Service One of killer application of Broadband convergence Network Internet Protocol Effects common platform for transport and service Technology Effects Real multimedia transport over Broadband converged Network with QoS and mobility Integrate communication, computer, and electronics technologies for IP TV Regulatory Effects Content-based or usage-based charging will be realized Fair Trading between various providers of Information value chain Frequency allocation for IP TV, DMB, and Wireless LAN/MAN/WAN jkchoi@icu.ac.kr 34
  35. 35. 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 jkchoi@icu.ac.kr 35
  36. 36. IPTV FG Topics - 1 Architecture and Requirements Scenarios and drivers Requirements Service definitions Architecture Relationships with other services and networks QoS and Performance Aspects QoS QoE Performance Traffic management jkchoi@icu.ac.kr 36
  37. 37. IPTV FG Topics - 2 Service Security and Contents Protection Aspects Content security Digital Rights management Content protection Security Authentication Authorization Network and Control Aspects Control protocol & Signalling Naming, addressing, and identification aspects Routing and multicast session control Content distribution jkchoi@icu.ac.kr 37
  38. 38. IPTV FG Topics - 3 End Systems and Interoperability aspects Implementation scenarios and applications Terminals Consumer 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 jkchoi@icu.ac.kr 38
  39. 39. Limitation of Current Solutions - 1 Limitations of Internet-based IP TV Solution No End-to-End QoS and no monitoring No flow handling mechanism to deliver transport QoS No admission control based on traffic monitoring and measurements Performance and Scalability problems of multicast protocol Number of subscribers per one multicast servers ? − Relying on performance of Multicast router and Server Multicasting domain and coverage of single multicast server No operational rule of IP protocols Only IGMPv2 snooping and Multicast tunneling on IPv4 No 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) jkchoi@icu.ac.kr 39
  40. 40. Limitation of Current Solutions - 2 Limitation of IMS-based IP TV Solutions Scalability of CSCF for Multicast Domain and Group Number of multicast session for Switched video/TV broadcast Digital simulcast of live TV via IP multicast Mobility of Multicast Session How 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 Protocols No Performance, protocol, and operational rules, etc. jkchoi@icu.ac.kr 40
  41. 41. Limitation of Current Solutions - 3 Limitation 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 Listeners No explicit acknowledgment of establishment of Multicast sessions Multicast MAC address from a CMTS-allocated pool Address aliasing/overlap on VPN, IP MAC, SSM Security Problems Baseline Privacy Interface (BPI) extensions that allow encryption of multicast sessions IGMP snooping in the cable modem (CM) that is used to trigger the BPI exchange for multicast Problems on IPv6 Protocols IGMP support for IGMPv3, SSM, Generic Attribute Registration Protocol (GARP), GARP Multicast Registration Protocol (GMRP) or Multicast Listener Discovery (MLD) jkchoi@icu.ac.kr 41
  42. 42. Stage Procedures of IP TV Standardization 1st stage (End of 2006) : Solve the urgent market demands and interoperability problem Possible functional architecture and service deployment scenarios Available 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 security Provide 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 options Extend NGN capabilities for IP TV service in terms of location, QoS control, navigation, directory, processing, and storaging, etc. jkchoi@icu.ac.kr 42
  43. 43. Stage Procedures of IP TV Standardization 1st Stage 2nd Stage 3rd Stage (~ 2006) (2007) (2008 ~ ) Solve Technical Problems Overall Minimum integrations Support various IP TV Services for Converged Transport among different solutions business solutions and Service Release 2 capabilities on Alignment with NGN Capabilities to support Requirements interactive controls and Release 1 various IP TV scenarios multimedia features Network & Alignment with the existing Open architecture for Service Converged architecture Architecture NGN-FRA different scenarios Service Available solutions by using Support the release 2 Converged business Scenarios & the existing systems and requirements and open Protocols scenarios and protocols technologies architecture Operations & Based on existing service Various multimedia Managements Converged business models provider environments business models Minimum interoperability Converged solutions from Consider new system and Remarks among different solutions near-term market demands technology evolution jkchoi@icu.ac.kr 43
  44. 44. (Appendix) Technical Issues on IP TV Focus Group jkchoi@icu.ac.kr 44
  45. 45. Study Issues on Architecture and Requirements for IP TV - 1 Service definitions Based 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 Stage Approaches based on Capabilities Sets and Evolution of End User Applications and Terminals Evolution of End User Applications and Terminals jkchoi@icu.ac.kr 45
  46. 46. Study Issues on Architecture and Requirements for IP TV - 2 Business Scenarios and Drivers Based 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 platform Access 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 Providers Video/Audio materials including meta-data, XML-based, Java-based, etc. Based on Application Provider or Consumers depending on home network elements and scenario for Intelligent Home Scenario 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 jkchoi@icu.ac.kr 46
  47. 47. Study Issues on Architecture and Requirements for IP TV - 3 Requirements & Architecture Based 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 architecture Distributed Client/Server platform, various Agents/Brokers, Java-based, XML-based, , OSGi-based, DOCSIS-based, CableHome-based, etc. Relationships with other services and networks Interworking 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 connectivity With security and billing options jkchoi@icu.ac.kr 47
  48. 48. Study Issues on QoS and Performance Aspects for IP TV QoS for 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.1541 QoE 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 domain Traffic and Congestion control based on network and application protocol Performance on media conversion/processing including lip synchronization, storaging and navigation Performance for menu handling, channel control, advertisement and paging, etc. jkchoi@icu.ac.kr 48
  49. 49. Study Issues on Service Security and Contents Protection Aspects for IP TV Content Security Combined with business scenarios of network provider and service provider Separation between public free materials and secured materials Optionally selectable depending on materials Digital Rights Management & Content protection Various options depending on middleware and application platform Authentication & Authorization With helps of NACF for user/terminal identifications and service profiles Alignment 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 group Proprietary STB system information and crypto key distribution jkchoi@icu.ac.kr 49
  50. 50. 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 network Based on PSTN/ISDN, IP and 3GPP/IMS protocols, etc. Internet-based IP TV service scenario (e.g., IETF) Based on the Internet architecture Based on IP protocols including PIM/SSM, IPv4 and IPv6, etc. Cable-based service scenario (e.g., NGNA) Based on the cable TV networks Based on DOCSIS, etc. jkchoi@icu.ac.kr 50
  51. 51. Study Issues on Network and Control Aspects for IP TV - 2 Control protocol & Signalling Architectures Multicast 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 stratum Multicast 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 jkchoi@icu.ac.kr 51
  52. 52. Study Issues on Network and Control Aspects for IP TV - 3 Naming and Addressing, Identification of IP TV service Identification of Source or Distributor for IP TV By using IPv6 multicast, anycast address By using URL name (e.g., http://www.kbs.iptv) By using E.164 number (e.g., specific prefix like 0x0) Identification of IP TV Clients By 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 Menu By using the URL, E.164, special code Group Naming and Addressing multicast, anycast IPv4/IPv6 address E.164-based URL/XML-based jkchoi@icu.ac.kr 52
  53. 53. 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 Multicast By static topological configurations By PIM-SM, -DM routing algorithm By CDN, P2P distributed environments Interface Protocols of UNI, NNI, and SNI IP-based Protocol: IGMP, ICMPv6, etc. Cable-based Protocol: DOCSIS 2.0/3.0 MPEG-based Protocol: XML or Java (handling of Metadata) jkchoi@icu.ac.kr 53
  54. 54. 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 address Layer 2 VPN: how to identify Multicast MAC or Ethernet address ? Layer 4 ~ 7 VPN: Mobile Multicast VPN for VHE Multicast Service Models Any Source Multicast (ASM) Receiver joins to a Multicast group Uses IGMPv2 Supported in DOCSIS 1.1 Source Specific Multicast (SSM) Receiver joins explicitly to source sending to a Multicast group Requires IGMPv3* (backward compatible with IGMPv2) Proposed to be supported in DOCSIS 3.0 jkchoi@icu.ac.kr 54
  55. 55. Study Issues on Network and Control Aspects for IP TV - 6 Routing and multicast session control Multicast transport at access network including IGMP/ICMPv6 Consider mobile environments for seamless handover Multicast transport at core network Static/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 routing Forwarding logics for multicast group Network Configuration and Operation Placement of rendezvous point (RPs), operations, and troubleshooting of RPs Operations of BSR or Auto RP protocols for RP redundancy Alternatively, static configuration of RPs and set up of MSDP-mesh groups for anycast-RP Operations of MSDP between administrative domains Troubleshooting of PIM-SM protocol elements such as RPT/SPT switchover and register tunnel encapsulation jkchoi@icu.ac.kr 55
  56. 56. Study Issues on Network and Control Aspects for IP TV - 7 Provisioning of IP TV Services SLA Negotiation between Customers and Service Providers Maintain QoS, availability, and security Contracts between Service Providers and Contents Owners Deal with copy wright and ownerships Customer Content Content Owner, Creator Customer Multicast Service Providers Content Owner, Creator Customer Owner, Creator Join/Leave Procedures Any or Specific IP TV Service Providers, and agent/broker Any or Specific IP TV Portal sites Any or Specific IP TV menus Any or Specific IP TV contents jkchoi@icu.ac.kr 56
  57. 57. Study Issues on Network and Control Aspects for IP TV - 8 Charging for IP TV over NGN Support various business model including the usage-based charging Billing Structure including CDR Group charging for specific VPN Operating and Administrative Domains Transport 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 Services Frequency bandwidth allocation For DMB and IP TV including geographical coverage and administrative domain Special number of E.164 Specific code for IPv6 multicast and anycast jkchoi@icu.ac.kr 57
  58. 58. Study Issues on End Systems and Interoperability aspects for IP TV Implementation scenarios and applications Step-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 Terminals IP set-top box Cable STB-based Mobile Hand Set-based Telematics-based MMoIP, 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 jkchoi@icu.ac.kr 58
  59. 59. Study Issues on Middleware and Application Platforms for IP TV - 1 Enhanced EPG, Channel and Menu Processing Channel Japping Scroll over the TV schedule for the available channels and reading for spot or special service offers Type 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. Metadata Content Discovery How to upload individual contents ? Automatic discovery of multimedia contents (e.g., P2P) jkchoi@icu.ac.kr 59
  60. 60. Study Issues on Middleware and Application Platforms for IP TV - 2 Middleware and Application Platforms Java-based, XML-based, GUI-based, Plug-in-Play, etc. Service/Application Platform Web-based (e.g. XML, Java, etc.) TV-based, Mobile-based Consumer electronics-based Middleware architectures Intermediate Agent/Service Brokers Middleware platforms Storage and Database Server jkchoi@icu.ac.kr 60
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