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An LG Electronics Company




Role of IPTV Standards in Achieving
Quality of Service

Rich Chernock
Telecom 2008
Las Vegas...
IPTV Basics

3   IPTV = Delivery of TV services over IP network
3   Telco answer to cable inroads into telephone business
...
IPTV System Architecture – Very High Level View



                                 IPTV           IPTV
        IPTV      ...
IPTV System Architecture – ATIS-IIF View




            An LG Electronics Company      Page 4
IPTV Standards: What Are They Good For?

3   Interoperable retail receivers
       Reduced capital cost for IPTV service p...
Worldwide IPTV Standards Efforts

3   ATIS-IIF (Alliance for Telecommunications Industry
    Solutions – IPTV Interoperabi...
ATIS-IIF Process

3   Work is done by “committees”
3   Issues are identified for each committee to work on
3   Members of ...
ATIS-IIF Organizational Structure

3   Five “committee”
      Architecture –formed Sep 2005
      Digital Rights Managemen...
ATIS-IIF QoSM Committee

3   Completed Documents
      IPTV QoS Framework (Dec 2006)
      QoS Metrics for Linear Broadcas...
Quality – A 50,000 Foot View

3 What matters most to a customer?
3 Being able to watch their preferred show/movie without
...
Quality Monitoring: Terrestrial/Cable vs. IPTV
3   Terrestrial & Cable
       ATSC & SCTE standards specify broadcast stre...
IPTV distribution system

3   Very complex system
       Considerably different requirements than voice / data
3   All fun...
Quality impairments w/transport causes

3   Lip Synch
3   Tiling – aka Pixelization
3   Channel loss
3   Video w/o Audio
3...
Categories – KISS principle
3   Origination of digital content
       Digital Turnaround, Encoder/Mux, Video Server
      ...
Highest monitoring priorities
3   Video/Audio Quality
       Need for in-depth transport monitoring wherever contents are ...
Summary

3   Standards are good!
3   IPTV has the same monitoring needs as for Broadcast,
    Cable and DTH systems
3   Mo...
QUESTIONS?

        Rich Chernock
     Triveni Digital, Inc.
rchernock@TriveniDigital.com
        609-716-3530




 An LG ...
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Role of IPTV Standards in Achieving Quality of Service

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Role of IPTV Standards in Achieving Quality of Service

  1. 1. An LG Electronics Company Role of IPTV Standards in Achieving Quality of Service Rich Chernock Telecom 2008 Las Vegas, NV April 16, 2008
  2. 2. IPTV Basics 3 IPTV = Delivery of TV services over IP network 3 Telco answer to cable inroads into telephone business 3 Enabled by very high bandwidth broadband facilities 3 Worldwide deployment status: 2005 – between 2.0 and 3.2 million subscribers 2006 – between 3.6 and 6.2 million subscribers 2007 – between 10.8 and 15.0 million subscribers projected One estimate of actual for 2007: 14.2 million 2010 – between 48.8 and 63.1 million subscribers projected 3 Current deployments use proprietary components (comprehensive standards in development) An LG Electronics Company Page 2
  3. 3. IPTV System Architecture – Very High Level View IPTV IPTV IPTV Service Content Consumer Provider Provider (SP) (CP) Operations Support Systems (OSS) IPTV Network Provider (NP) Business Support Systems (BSS) An LG Electronics Company Page 3
  4. 4. IPTV System Architecture – ATIS-IIF View An LG Electronics Company Page 4
  5. 5. IPTV Standards: What Are They Good For? 3 Interoperable retail receivers Reduced capital cost for IPTV service providers Convenience and lower cost for consumers Greater choice of services for consumers 3 Interoperable infrastructure components Reduced cost for IPTV service providers 3 Interoperable quality monitoring equipment (due to stream structure standards & monitoring RPs) Lower cost monitoring equipment More effective monitoring An LG Electronics Company Page 5
  6. 6. Worldwide IPTV Standards Efforts 3 ATIS-IIF (Alliance for Telecommunications Industry Solutions – IPTV Interoperability Forum) Established June 2005 Mission: Comprehensive standards for IPTV, focus on US 3 ITU-T (International Telecommunications Union) IPTV Focus Group Established April 2006 Mission: Coordinating & promoting global IPTV standards 3 Digital Video Broadcasting (DVB) European DTV standards group, expanding recently into IPTV 3 TTA (Korea), CCSA (China), ARIB (Japan) An LG Electronics Company Page 6
  7. 7. ATIS-IIF Process 3 Work is done by “committees” 3 Issues are identified for each committee to work on 3 Members of the committee submit contributions 3 “Working text” is generated for each issue, and continuously revised as new contributions are discussed and accepted (usually after modification) 3 When working text is considered complete, it moves into “initial closure” – available for industry comments 3 After considering comments, document moves into “final closure” (publication) An LG Electronics Company Page 7
  8. 8. ATIS-IIF Organizational Structure 3 Five “committee” Architecture –formed Sep 2005 Digital Rights Management (DRM) – formed Sep 2005 Quality of Service Measurement (QoSM) – formed Sep 2005 Testing and Interoperability (T&I) – formed Dec 2006 Metadata & Transaction Data (MTD) – formed Jan 2007 3 Each committee is working on one or more “issues” An LG Electronics Company Page 8
  9. 9. ATIS-IIF QoSM Committee 3 Completed Documents IPTV QoS Framework (Dec 2006) QoS Metrics for Linear Broadcast (August 2007) QoS Metrics for Public Services (January 2008) 3 Currently Active Issues Quality of Experience Model for Linear Broadcast QoS Metrics for Regulatory Areas QoS Metrics for Broadcast Advertising QoS Metrics for Video on Demand Fault Modes for IPTV An LG Electronics Company Page 9
  10. 10. Quality – A 50,000 Foot View 3 What matters most to a customer? 3 Being able to watch their preferred show/movie without glitches 3Customers don’t/shouldn’t care about MPEG, IP, RTP, QAM… 3 To maintain customer satisfaction, the goal is to make this so 3 The ability to monitor the entire distribution system is crucial 3End-to-end service assurance An LG Electronics Company Page 10
  11. 11. Quality Monitoring: Terrestrial/Cable vs. IPTV 3 Terrestrial & Cable ATSC & SCTE standards specify broadcast stream structure ATSC & SCTE have detailed Recommended Practice for Validation ATSC A/78 & SCTE 142 Emphasis on error severity Widely available, low-cost, effective broadcast monitors Example: Triveni Digital StreamScope™ 3 IPTV Quality monitoring to date is more ad hoc, less effective Work is currently underway in ATIS to change this QOS metrics/measurements standards available for Linear TV, EAS An LG Electronics Company Page 11
  12. 12. IPTV distribution system 3 Very complex system Considerably different requirements than voice / data 3 All functional blocks that touch flows can introduce impairments at the transport level 3 Transport impairments often result in QOE hit Traditional “QOS” metrics (packet loss & latency) may show problems Often root cause is deeper in the transport Not all IP packets are created equal! 3 Can be categorized – with different metrics appropriate for each category An LG Electronics Company Page 12
  13. 13. Quality impairments w/transport causes 3 Lip Synch 3 Tiling – aka Pixelization 3 Channel loss 3 Video w/o Audio 3 Audio w/o Video 3 Jerkiness 3 Freezes 3 Audio glitches 3 Root causes reflected by higher level symptoms An LG Electronics Company Page 13
  14. 14. Categories – KISS principle 3 Origination of digital content Digital Turnaround, Encoder/Mux, Video Server Is the transport correctly formed at origination? 3 Manipulation of digital content Groomers, Rate Shapers, Splicers Have the modifications caused transport level impairments? 3 Transport of digital content Core networks, routers, switches Have the network elements caused significant transport problems 3 Last mile DSLAM, QAM modulator Are compliant streams being delivered to viewers? An LG Electronics Company Page 14
  15. 15. Highest monitoring priorities 3 Video/Audio Quality Need for in-depth transport monitoring wherever contents are modified Encoding, Muxing, Rate Shaping, Insertion, QAM … Depth of monitoring equivalent to SCTE 142/ATSC A/78 is necessary Non-video components also important EAS messages Splice Messages 3 Topology and flows Network topology: Inventory and real-time status Flow characteristics: Unicast and multicast flow paths, latency and losses Essential for localization and root-cause Need to be Transient aware 3 Equipment Health Common information elements for assessing failures An LG Electronics Company Page 15
  16. 16. Summary 3 Standards are good! 3 IPTV has the same monitoring needs as for Broadcast, Cable and DTH systems 3 Monitoring for QOE problems requires looking at transport and network issues 3 Rapid detection/localization/repair of issues requires the ability to comprehensively monitor transport metrics 3 Monitoring strategies exist that allow cost-effective localization of problems An LG Electronics Company Page 16
  17. 17. QUESTIONS? Rich Chernock Triveni Digital, Inc. rchernock@TriveniDigital.com 609-716-3530 An LG Electronics Company Page 17

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