SBE_ATSC30_2016Slides.pdf
- 2. Specialist Groups and ad hoc groups have made preliminary decisions to select technologies for incorporation in ATSC 3.0. Selections of all technologies are subject to approval of TG3 and ultimately the Voting Membership in accordance with ATSC due process.
- 3. ATSC (aka 1.0) • Constrained • Maxed-Out • Inefficient • Fixed • “It Feels Old”
- 4. ATSC 3.0 • Configurable • Scalable • Efficient • Interoperable • Adaptable
- 5. Dial-up Modem 19.2 kbps Cell Phone Analog 2G VCR - analog Computer DOS … Windows 3.1 Advanced Digital HDTV System
- 6. Cable & DSL Modem Up to 100 Mbps HDTV- Digital – Smart TVs LED / LCD displays SmartPhones WiFi 802.11ac 1300 Mbps 2007: iPhone (4Gbytes) 2014: iPhone 6 (128 Gbytes) Tablets 1999: 802.11b (11 Mbps) 2009: 802.11n (600 Mbps) 2013: 802.11ac (1300 Mbps) Computers 4G Networks 12 Mbps Wearables
- 7. • Tablets are in widespread use • Mobile devices have proliferated • Audio experience features have advanced • A strong desire exists for higher resolution images • Spectrum is becoming increasingly scarce • Personalization & Interactivity have become expected on the part of consumers • Major improvements have been made in video compression efficiency • Delivery paths other than broadcast have become commonplace • Better audience measurement accuracy is needed and expected Why do we need change?
- 8. Sony Video Unlimited 4K FMP‐X10 upgrade to work with other 4K UHD brands
- 9. To improve the television viewing experience To add value to broadcasting’s service platform ◦ Extending reach, adding possible new business models ◦ Providing higher audio and video quality, more accessibility ◦ Personalization and interactivity To address changing consumer behavior and preferences ◦ TV content on all devices, both fixed and mobile
- 10. Maintain competitive top‐tier picture and sound quality Reach new consumer devices with broadcast platforms Leverage the power of broadcasting and the Internet Tapping new advances for a complete new system Potential for a standard widely adopted around the world
- 11. Expanded service offerings Coverage areas customized to the terrain New transmission and reception environments Mobile and pedestrian operation A system that can evolve over time Flexible Robust Extensible
- 12. • ATSC 3.0 content to MVPDs • ATSC 3.0 content to MVPDs S37, Conversion and Redistribution • Service and content protection • Service and content protection S36, Security • Software, pictures, and sound • Software, pictures, and sound S34, Applications / Presentation • Organizing bits into files, streams, and packets • Organizing bits into files, streams, and packets S33, Management / Protocols • Sending bits over the RF channel • Sending bits over the RF channel S32, Physical • Use Cases, Requirements, and overall program management • Use Cases, Requirements, and overall program management S31, System Requirements
- 13. Physical Layer ATSC Link-Layer Protocol (ALP) Data Link Layer IP IP UDP TCP MMTP ROUTE HTTP Proxy HTTP MMT-specific Signaling ROUTE-specific Signaling MPU (ISO BMFF) NRT File Delivery DASH Segment (ISO BMFF) NRT File Delivery All Signaling Objects DASH Player/Decoder MPU Player/Decoder Broadcast Broadband LLS (SLT) EME/CNEC EME/CNEC Announcement Applications (HTML5/JavaScript) ATSC 3.0 Physical Layer (OFDMA RF)
- 14. The ATSC 3.0 Physical Layer encompasses ◦ Common system elements ◦ Bootstrap signaling ◦ Modulation and coding ◦ Waveforms ◦ Core broadcast services ATSC 3.0 will have considerable flexibility in operating points ◦ Low capacity, highly robust ◦ High capacity, less robust 0 2 4 6 8 10 12 -10 -5 0 5 10 15 20 25 30 35 BICM Link Efficiency (bits/s/Hz) SNR (dB) Bit Interleaving, Coding, and Modulation Performance Shannon Limit ATSC 3.0, QPSK ATSC 3.0, 16QAM ATSC 3.0, 64QAM ATSC 3.0, 256QAM ATSC 3.0, 1024QAM ATSC 3.0, 4096QAM ATSC 1.0 A/53
- 15. Bootstrap start point ◦ Robust synchronization Service discovery Coarse time, freq ACQ 5MHz bandwidth < ‐6dB SNR performance with FER = 1E‐2 ◦ 24 signaling bits Sampling frequency Channel BW EAS Wake Up, Preamble selection… Preamble frame control ◦ Basic Low Level Signaling flag Frame structure starts… ◦ Detail Wall clock time Full frame structure, PLP’s, interleaving… Time Frequency Bootstrap Signal Frame ... Preamble L1‐Basic Signaling L1‐Detail Signaling ... Sub‐Frame Payload Sub‐Frame Payload Sub‐Frame Payload
- 16. PLPs carry data in various configurations ◦ Robustness vs. data‐capacity tradeoffs Based on selections of modulation and coding Based on selections among interleaving choices PLPs can be arranged in patterns of frequency and time resources ◦ Patterns can vary between sub‐frames Up to 64 active “simultaneously” on a single RF channel Up to 4 in a single service – limited by receiver resources
- 17. LDM is a new transmission scheme that uses spectrum overlay technology to superimpose multiple physical layer data streams with different power levels, error correction codes, and modulations for different services and reception environments. For each LDM layer, 100% of the RF bandwidth and 100% of the time are used to transmit the multi‐ layered signals for spectrum efficiency and flexible use of the spectrum. Future Extension Layer RF Channel BW 5 dB Upper Layer 5 dB Lower Layer LDM Overlay Spectrum
- 18. Signal cancellation can be used to retrieve the robust upper layer signal first, cancel it from the received signal, and then start the decoding of lower layer signal. ◦ The upper layer (UL) is ultra‐robust and well suited for HD portable, indoor, mobile reception. The high data rate lower layer (LL) transmission system is well suited for multiple‐ HD and 4k‐UHD high data rate fixed reception. Future Extension Layer (FEL) can be added later with full backward compatibility. Combined constellation (core + enhanced) Enhanced constellation
- 19. Payload scrambling Low density parity check (LDPC) forward error correction Bit interleaving Non‐uniform constellations Single / multiple physical layer pipes Time / frequency / layered cell‐ multiplexing combinations Layered division multiplexing Multiple input / multiple output Single frequency network Time interleaving Orthogonal frequency division multiplexing modulation Frequency interleaving Pilot / tone reservations Channel coding Peak‐to‐average power ratio reduction Large guard interval range A/321 bootstrap signal discovery Hierarchical robust preamble signaling
- 20. The ATSC 3.0 Management and Protocols Layer encompasses ◦ Service delivery and synchronization ◦ Service announcement and personalization ◦ Interactive services and companion screens ◦ Redistribution support / watermarks IP transport will be used for broadcast delivery of both streaming and file content ◦ ATSC 1.0 uses MPEG‐2 Transport; ATSC Mobile/Handheld uses IP
- 21. Common elements include ◦ Use of IP Transport ◦ Use of ISOBMFF as a content format for streaming delivery ◦ Use of UTC (or some other form of "absolute" time) for synchronization and buffer management IP-based protocols ISOBMFF streaming media format UTC clock reference
- 22. Broadcasting is no longer an independent silo ◦ IP takes advantage of evolution speed of the Internet Puts broadcast and broadband as peer delivery mechanisms ◦ Enables new types of hybrid services ◦ Seamlessly incorporates niche content Enables new business models ◦ Localized insertion of ads or other content ◦ New revenue model for broadcasters that has previously been available to only cable or IPTV operators Tablet WiFi Smartphones 4G Smart TV Internet Internet PC
- 23. The ATSC 3.0 Applications and Presentations Layer encompasses ◦ Video coding ◦ Audio coding ◦ Presentation logic and service frameworks ◦ Runtime environment ◦ Accessibility ATSC 3.0 offers “hybrid” delivery ◦ Broadcast (over‐the‐air) and broadband (over the Internet) ◦ Use cases include: Main A / V components delivered via broadcast, alternate components (e.g., alternate language) delivered via broadband Main program delivered via broadcast, alternate interstitials delivered via broadband (e.g., targeted ad insertion) Temporary “hand‐off” from broadcast to broadband and back for brief fades in reception
- 24. The ATSC 3.0 video system will support ◦ UHD (4K) delivery is a key goal of ATSC 3.0 ◦ Enhanced HD ◦ Wide color gamut, high dynamic range, scalable coding ◦ Targeting small screens (HD) and large screens (UHD) ◦ Multiple, selectable video components ◦ 3D support State‐of‐the‐art video compression ◦ HEVC Main 10 Profile specified 35 50% performance gains vs AVC/H.264 Several HDR proposals submitted and under evaluation Video quality (compression efficiency) Backward compatibility with SDR (100nit, ITU Rec.709) Production workflow considerations
- 25. Reference bit rate is 709 color space, 1080/30p, 8 bit. Chart courtesy of NBC/Universal and CableLabs. 0% 50% 100% 150% 200% 250% 300% 350% 10-Bit Bit Depth Color Gamut HDR High Frame Rate - 60FPS High Frame Rate - 120FPS 4K UHDTV Bandwidth Increase
- 26. The ATSC 3.0 audio system will feature: ◦ An enhanced, immersive experience Sound with improved azimuth, elevation, and distance perspective Use of channels and objects or “elements” and metadata Metadata allows rendering at the decoder, customized to the user’s sound system The decoder places the sound in the most accurate position that the user’s sound system can support ◦ Targeting various devices (fixed, mobile) and set‐ups ◦ Personalization ◦ Support for audio‐only content as well as A / V content ◦ Hybrid broadcast / broadband delivery will be supported ◦ Normalization of content loudness and contouring of dynamic range Based on the specific capabilities of a user’s fixed or mobile device, and the unique sound environment
- 29. Goal is to deliver a personal and dynamic experience ◦ HTML5 / Internet overlay graphics ◦ Hybrid delivery — merging broadcast and internet ◦ Dynamic ad insertion ◦ Personalized graphics ◦ Interactivity capabilities ◦ Synchronized second‐screen applications ◦ Immersive audio — user control of tracks and mix ◦ Audience measurement capabilities Content can be streamed in real time (i.e., linear or streaming on demand content) via both broadcast and broadband Content can be delivered in non‐real time and cached locally via both broadcast and broadband
- 30. ATSC is specifying an interactive application environment for ATSC 3.0 ◦ The standard will enable interoperability between the receiver runtime environment and the apps that producers and broadcasters author Based on W3C technologies ◦ Goal is to align with the web as much as possible ◦ Ideally, application authors will be able to easily adapt web apps for TV and vice versa ATSC 3.0 will add TV‐centric functions to the W3C technologies ◦ Change the channel ◦ Check parental control setting ◦ Access the device’s PVR ◦ Response to a timed event in the program
- 31. New public service capabilities ◦ Robust audio and closed‐caption transmission, even when picture fails ◦ Improved audio intelligibility for hearing impaired ◦ New capabilities for improved dialog / narrative intelligibility (track‐specific volume control) ◦ Continued support for video description services ATSC 3.0 feature set supports ◦ Visually Impaired (VI) Video Description ◦ Hearing Impaired (HI) Closed Captions Closed Signing Dialog Enhancement ◦ Emergency alerts and messaging Emergency crawls and audio tracks
- 32. Security enables new business models for ATSC 3.0 ◦ Subscription services ◦ Monthly fee for access to the service ◦ “Freemium” (i.e., user registers and then content is free) Subscription options for alternate components ◦ Custom views: e.g., pay for “dashboard cam” video in an auto racing event ◦ Pay‐per‐view programs
- 33. Next step in robust delivery of emergency information to the public Provides a more robust and reliable public warning and safety information communications system, unaffected by cellular network congestion Leverages broadcasters’ major role as public‐information provider with disaster‐resistant facilities Offloads data and video traffic during times of emergency to preserve LTE for what it does best: point‐to‐point voice communications
- 34. Enhance the station’s brand for weather, essential information and public service in times of emergency Provide a pipeline for extensive information beyond simple text, for disaster preparation and recovery in addition to acute warnings Create public policy support for transitioning to ATSC 3.0 and unlocking mobile devices for broadcast TV reception
- 35. ATSC 3.0 and AEA designed to reach many types of receivers ◦ Fixed, portable, mobile, handheld ATSC 3.0 specifies an optional robust‐level AEA wake‐up signal for all types of receivers in “sleep” mode The emission standard enables receivers to display the following: ◦ Primary text alert message displayed as banner or crawl overlay ◦ Audio announcement of primary alert message
- 36. Alert messages are capable of targeting receivers in specific geographic locations ◦ Works with receivers that “know where they are” AEA supports optional delivery of multiple types of rich media content in support of enhanced alerting ◦ File‐ and stream‐based rich media including: Weather radar, evacuation routes, live news and weather reporting, instructions for what to do ◦ Content from stations’ news and weather services, or from official agencies
- 37. Rich Media Content Guide Displayed on Small Screen
- 38. Rich Media Content Guide Displayed on Small Screen
- 40. CC Components Program (time) Video Video Video Video Audio Audio Audio Video 2 Audio Closed Captions CC CC Closed Captions 2 Interactive App Audio 2 App App Components can be delivered via broadcast or broadband Components can be dynamically selected and combined at the receiver App
- 41. Synchronized multi‐screen applications Data sharing between devices Discover and exercise services such as DLNA Turn any touch‐enabled device into a track‐pad for Television And more...
- 42. 42 Confidential · © 2014 Pearl USE CASE Users can answer a quiz related to concurrent news story or advertisement. EXAMPLES Ads: Could be used to engage viewers in brand awareness. (Ex: what year did Coca-Cola first use cans?) Live Content: Apply any number of trivia related opportunities for a particular vertical. (news, weather, sports, etc.) Notes ·Proven method of user engagement ·Useful metrics
- 43. Dynamic Image Dynamic Image Linear Ad Brand Logo Brand Logo Interactive Content Interactive Content
- 44. Confidential · © 2014 Pearl USE CASE Users can answer an opinion poll related to concurrent news story. Unlike quizzes, polls aggregate the response and can display the results instantly or delayed after a pre-determined period of time. EXAMPLES Ads: Can be used as a Sentiment Meter to “vote” on the relevance of an ad. (Ex: did you like this ad – Y or N?) Live Content: Select the segment functionality, making the news more interactive. Notes ·Proven method of user engagement ·Applicable to multiple content types (sports, weather, etc)
- 46. USE CASE Replay highlights of a game. Especially relevant when joining late or missing key moments (and associated linear replay)
- 48. Dynamic Image Dynamic Image Linear Ad Brand Logo Brand Logo Coupon sent to mobile phone or email Coupon sent to mobile phone or email
- 49. USE CASE Like or tweet while watching a show
- 50. Tablet/smartphone shows real‐time information on actors in a scene Clothing and accessories worn by characters available for purchase Targeted advertising Director’s commentary on second screen ◦ Amazing Spiderman mobile app had a timeline on the second screen synchronized to Blu‐ray playback Games across multiple screens ◦ Smurf‐O‐Vision app for the movie Smurfs
- 51. USE CASE Play along with game show Frame accurate media sync App can discover the TV, and vice versa
- 52. USE CASE Audio description or alternative commentary streamed to an app on the phone and listen on headphones. (Avoid annoying everyone else in the room)
- 53. USE CASE Get more detail on a news segment – viewed on second screen
- 54. Companion apps the enable consumers to be part of the movie/show experience ◦ Ex: Recording your voice for a movie or TV‐show Grab shareable clips from the playing content to the second screen New applications for ‘broadcast’ data
- 55. Confidential · © 2014 Pearl USE CASE Users can view a Message or Fact related to concurrent news story or ad. EXAMPLES Ads: Ad engagement metrics can be derived by tracking how many users expand and/or dismiss a message event. Live Content: Could be used to drive deeper engagement with specific stories via imagery, URL links, etc. (Ex: link to the agenda of a public hearing)
- 56. Confidential · © 2014 Pearl USE CASE Users can view a relational map related to concurrent news story or ad. This event would leverage geoLocation with API integration to mapping service. EXAMPLES Ads: User can see the closest outlet in relation to their location on a map. (Ex: shows the nearest Pep Boys store to the user’s location) Live Content: User can see where a specific event is in relation to their location. (Ex: traffic accident, fire or parade). Notes ·Unique enhancement to static maps used today ·Demonstrates integration with external systems
- 57. Confidential · © 2014 Pearl USE CASE Users can view regional traffic map. This event would leverage geoLocation with API integration. EXAMPLES Ads: While stations could think of creative uses (e.g. showing congested rush-hour traffic during a vacation getaway ad), this event is probably better suited for Broadcast Content. Live Content: During morning or evening rush hour when numerous alerts are active, a user may save time on her commute by seeing traffic delays which pertain specifically to their area.
- 58. Confidential · © 2014 Pearl USE CASE Users can view 24 hour or 5-day regional weather forecast EXAMPLES Ads: This is another example where the event is probably better suited for Broadcast Content. Live Content: Local visibility to possible strong thunderstorm activity. Notes ·Weather information is popular – local refinement adds to the engagement ·Teaser for meteorologist detailed forecast
- 59. USE CASE Follow along with detailed stats for particular players
- 61. USE CASE Play a previous episode, or restart from the beginning.
- 64. ATSC 3.0 is a suite of standards ◦ One or more standards per layer ◦ Each standard moves through the process independently Final approval of each document is expected in the first or second quarter of 2017 FCC considering change in rules to authorize use of ATSC 3.0 ATSC 3.0 selected by South Korea 64
- 66. 2013 2014 2015 2016 2012 2017 2018 2019 2020 System Requirements System Requirements 07- 2013 PHY ? ? CFP … Proposals … Evaluate … Select ! 09- 2013 03- 2013 Standard MGT ? ? CFP … Proposals … Evaluate … Select ! ! Working Draft Working Draft APP ? ? CFP … Proposals … Evaluate … Select ! ! Candidate Standard Candidate Standard Testing Commercial Launch Product Design Product Design Lab Prototypes Tech Demos Industry Broadcast Incentive Auction Broadcasters Repack Spectrum 39 months Challenge
- 67. Studio‐to‐Transmitter Link (STL) Tower and Transmit Antenna Legend Existing usable components May need upgrade New components ATSC 1.0 TV ATSC 3.0 TV (UHD) Tablets and Mobile Phones ATSC 3.0 Gateway or Converter WiFi Home ATSC 3.0 exciter Transmitter Mask Filter ATSC 3.0 Waveform Transmitter Site ATSC 3.0 Enabled Mobile Device Networks and Playout Servers Existing HD Cameras, Audio, Captioning 4K/UHD Cameras, Next‐gen Audio, Captioning ATSC 3.0 Encoder, Multiplexer, Electronic Service Guide (ESG) HD Production Master Control UHD Production HD IP Packets UHD TV Station
- 68. • Ultra‐HD capable: HEVC, HDR, HFR, WCG • Immersive audio • Smart Media Transport • Advanced PHY: OFDM, LDPC, high order NuQAM, LDM for mixed services and local content insertion. – From large screen & rooftop antenna to high mobility handheld/portable devices, and anything in between • IP‐centric system: convergence of broadcast and wireless broadband • Part of the 5G eco‐system: P2MP, IoT, high speed, ultra‐reliable, lifeline communications… Tablet WiFi Smartphones 4G Smart TV Internet Internet PC
- 69. Will not be backward compatible to the legacy system Acknowledges changes of user environments and needs Understands broadcast spectrum regulation issues Supports viability and new business models of broadcasters Flexible to accommodate future improvements and developments 3.0
- 70. Questions?