ATSC 3.0
Agenda ATSC Overview of ATSC 3.0 Status
3 About the ATSC Standards development organization for digital television Founded in 1983 by CEA, IEEE, NAB, NCTA, and SMPTE Focused on terrestrial digital television broadcasting ATSC is an open, due process organization Approximately 140 member organizations Broadcasters, broadcast equipment vendors, cable and satellite systems, consumer electronics and semiconductor manufacturers, universities ATSC Mission Statement: To create and foster implementation of voluntary Standards and Recommended Practices to advance terrestrial digital television broadcasting, and to facilitate interoperability with other media.
ATSC 3.0 Next Generation Broadcast TV Standard Complete new system Non-backwards compatible Significant performance improvements New Capabilities and new services Robust Flexible Requirements Advanced Video & Audio Future Capabilities
ATSC 3.0 Protocol Stack
Benefits of IP transport Broadcasting no longer an independent silo Broadcast & Broadband as peer delivery mechanisms Enables new types of hybrid services Localized Insertion Ads or other content Allows revenue model for broadcasters that has been available to cable or IPTV operators Take advantage of evolution speed of Internet Smart TV PC Internet 4G WiFi Tablet Smartphones
7 ATSC 3.0 Reach More People in More Places Robust Transmission Easy Reception
8 BICM Link Efficiency (bits/s/hz) Robust Transmission-Easy Reception ATSC 3.0 Physical Layer Bootstrap COFDM Powerful Modulation and coding options ATSC 3.0 has flexibility in operating points Low capacity, highly robust High capacity, less robust 12 10 Shannon Limit ATSC 3.0, QPSK ATSC 3.0, 16QAM ATSC 3.0, 64QAM ATSC 3.0, 256QAM Bit Interleaving, Coding, and Modulation Performance 8 6 ATSC 3.0, 1024QAM ATSC 3.0, 4096QAM ATSC 1.0 4 2 A/53 0-10 -5 0 5 10 15 20 25 30 35 SNR (db)
9 Physical Layer Pipes 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 PLPs simultaneously on a single RF channel Up to 4 PLPs in a single service limited by receiver resources
ATSC 3.0 Serving Society Mobile Capability
Example use of PLPs SHVC (Video Spatial Scalability) Base layer optimized for mobile reception Enhancement layer optimized for UHD resolution Mobile/Portable Channel Mobile / distant receiver UHD source 2x downscaling SHVC encoder BL encoder (HD) EL encoder (UHD) HD, audio UHD video High robustness High BW ATSC 3.0 PHY layer Fixed receiver HEVC decoder HD video Fixed channel SHVC decoder UHD video
Single Frequency Networks (SFN) Multiple transmitters in an SFN can be used to extend coverage and add capacity by raising SNR > Indoor penetration No spill-over into adjacent market
ATSC 3.0 Tell Vivid Stories About Our World
Key Video Features Up to 4K UHD (2160p) spatial resolutions High Dynamic Range (HDR) Wide Color Gamut (WCG) High Frame Rate (HFR) Enhanced 2K HD (1080p) Add HDR and WCG to HD Significant efficiency improvement with HEVC
With UHD you get Better Clarity
With HDR you get Better Contrast Standard Dynamic Range High Dynamic Range
With Wide Color Gamut you get Richer Colors
Immersive Audio Sound with improved height and distance perspective Works on different devices and speaker set-ups
Audio Personalization: Improve intelligibility PA MORE DIALOG ENHANCEMENT NORMAL CROWD NORMAL Choose Commentary
Key Accessibility Features Deliver video description audio service While also sending additional alternative audio tracks Alternate audio tracks can share the immersive music & effects track that the main audio listeners enjoy Multiple languages are possible Deliver multiple closed caption tracks Multiple languages are possible Improved Dialog Intelligibility control
ATSC 3.0 Hybrid and Interactive
Advanced Television Systems Committee Hybrid Delivery Content can be delivered via broadcast (over-the-air) and broadband (over the Internet) Synchronously / Seamlessly combined in the receiver Use cases include: Main audio and video components delivered via broadcast, alternate components such as alternate language) delivered via broadband Main program delivered via broadcast, alternate interstitials delivered via broadband for targeted ad insertion Main program services delivered via broadcast, indepth educational material delivered by broadband
Interactivity Based on HTML
Advanced Emergency Alerts Leverages the power of ATSC 3.0 to supplement existing EAS alerts On-screen icons/prompts/summaries Detailed and targeted info Rich media content (video, evacuation maps, etc.) User selection of preferences (e.g., language) Possibility to wake up devices for urgent alerts 1
Security Encryption system for broadcast content enables new business models: Protect high value content Offer Subscription or Freemium services Offer Pay-per-View programming Viewer registrations for services creates a 1-to-1 relationship between broadcaster and viewer TLS for protecting broadband-delivered content Standard web security technology
Status of ATSC 3.0
ATSC 3.0 Reaches Mainstream Status at NAB 2017 Image reproduced with permission, photography courtesy of Robb Cohen Photography and Video
South Korea launches ATSC 3.0 Global UHD Conference KBS MBC SBS
United States Use of ATSC 3.0 authorized November 16, 2017
ITU-R Introductory ATSC 3.0 document contributed by U.S. Delegation ATSC 3.0 suite of standards to be submitted in the next few months contributed by U.S. delegation
ATSC 3.0 THANK YOU! MRICHER@ATSC.ORG