Emerging 8K services and their applications towards 2020
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The document discusses the advancements and future plans for 4K and 8K broadcasting in Japan, particularly leading up to the 2020 Tokyo Olympic and Paralympic Games. It outlines the development of technical specifications for broadcast and broadband delivery systems, including satellite and hybrid services, and mentions demonstrations of 8K content delivery. The establishment of the Next Generation Content Distribution Forum (NEXCDI-F) is also highlighted, which aims to promote and develop next-gen content delivery technologies.
Emerging 8K services and their applications towards 2020
- 1. Emerging 8K services and their applications towards 2020 Shuichi Aoki Science and Technology Research Laboratories, NHK ITU-T 2nd mini-Workshop on Immersive Live Experience January 19th 2017, Geneva
- 2. 2 For B to C broadcast Test services via satellite launched in 2016 (with a limited number of receivers and monitors) Commercial services via satellite will launch in 2018 (with widely available TV sets) Terrestrial system is under study For B to C broadband Retransmission of satellite broadcast and hybrid services are under study For B to B delivery Technical specifications for public viewing and 4K･8K theaters are under study Status of 4K･8K delivery in Japan Towards 2020 Tokyo Olympic & Paralympic Games, opportunities for enjoying 4K･8K will dramatically increase
- 3. 3 Receivers and monitors for test broadcast services Everyone enjoys 4K･8K content all over Japan
- 4. 4 8K offers even stronger sense of presence and realness to viewers 8K, more than resolution High dynamic range Wide color gamut & 10-bit depth 8K 60/P, 120/P
- 5. Delivery aspect of 8K broadcasting system Enables hybrid services, in which broadband are used together with broadcast to deliver content Uses IP-based media transport for hybrid services MPEG Media Transport (MMT): for media synchronization IP: for common interface between broadcast and broadband TLV multiplexing scheme: for efficient transport of IP packets 5 MMT Closed caption TTML TLV multiplexing scheme IP ISDB-S3 channel coding & modulation 22.2 Audio AAC, ALSHEVC 4K･8K video *TLV: Type Length Value *TTML: Timed Text Markup Language
- 6. 6 Rec. ITU-R BT.2020, “Parameter values for ultra-high definition television systems for production and international programme exchange” Rec. ITU-R BT.2100, “Image parameter values for high dynamic range television for use in production and international programme exchange” Rec. ITU-R BS.2051, “Advanced sound system for programme production” Rep. ITU-R BT.2342, “Production, emission and exchange of closed captions for all worldwide language character sets (latin and non-latin) ” Rec. ITU-R BT.2074, “Service configuration, media transport protocol, and signalling information for MMT-based broadcasting systems” Rec. ITU-R BT.1869, “Multiplexing scheme for variable-length packets in digital multimedia broadcasting systems” Rec. ITU-R BO.2098, “Transmission system for UHDTV satellite broadcasting” Related ITU-R Recommendations/Reports MMT Closed caption TTML TLV multiplexing scheme IP ISDB-S3 channel coding & modulation Audio AAC, ALSHEVC Video Rec. ITU-R BT.2020 Rec. ITU-R BT.2100 Rec. ITU-R BT.2074 Rec. ITU-R BT.1869 Rec. ITU-R BS.2051 Rep. ITU-R BT.2342 Rec. ITU-R BO.2098
- 7. Low-latency encapsulation Supports real-time streaming and file-based streaming Synchronization of audio & video from different channels UTC-based presentation timestamp Identifying media components with IP address Combination and switching of media components Self-decodable structure for audio & video signals 7 … … t=k+1t=kt=2t=1t=0 Video component #1 Video component #2 Presentation Benefits of MMT for broadcast and hybrid services Encoder DeliveryMFU Encoder DeliveryMFU MPU *MFU: Media Fragment Unit *MPU: Media Processing Unit
- 8. 8 Technical elements on use cases Use case Technical elements Media transport Error resiliency Session management Broadcast (fixed reception) Multicast Rec. ITU-R BT.2074 Not required IGMPv4, MLDv2 Broadband (retransmission, hybrid services) Multicast AL-FEC IGMPv4, MLDv2 Broadband (hybrid services) Unicast (unidirection) AL-FEC RTSP Broadband (VoD, hybrid services) Unicast (bidirection) ISO/IEC 23008-1 TCP HTTP
- 9. 9 Demo #1: 11-channel 8K delivery over broadband MMT transmitter Broadcast modulator Broadcast demodulator BS-IF MMT receiver MMT/IP Used 10G-EPON as broadband 10 G broadband available in limited areas Transmit 11 programmes on broadband and 1 programme on broadcast Approx. 11x120 Mbps including AL-FEC for broadband and 100 Mbps for broadcast 11x120 Mbps = 1.3 Gbps 10 G broadband MMT/IP 1x100 Mbps
- 10. 10 Channel change between broadcast and broadband One programme for broadcast and Eleven programmes for broadband (with AL-FEC) Transmitter 1 2 3 4 5 6 7 8 9 10 11 12 Receiver Selected one 8K programme is presented
- 11. 11 Everyone can use this broadband about 40 US$ per month Picture in picture and tablet device for presentation Synchronized presentation between programmes Demo #2: hybrid delivery over commercial broadband MMT transmitter MMT receiver MMT/IP Tablet Commercial broadband Broadcast modulator Broadcast demodulator BS-IF Main programme Additional-views programmes
- 12. 12 Synchronization of two videos from different paths Additional video (MMT/UDP over broadband) Programme over broadcast Additional video (MMT/UDP over broadband) Additional video (MMT/HTTP over broadband)
- 13. 13 Next Generation Contents Distribution Forum (NexCDi-F) was established in 2016 Members include content creators, broadcasters, manufactures, teleco companies, and so on Developing technical specifications for delivering next-gen content including 4K･8K Promoting facilities having large screen for next-gen content For B to B delivery Various content Platform for 4K･8K, 3D video and audio Public viewing Theaters Shopping centers Public facilities Museums Schools Hospitals Applications
- 14. 14 Services will start at limited areas in 2017 Environments for business will be prepared in 2018 Services will start until Rugby World Cup in 2019 Services will spread all over Japan in 2020 Plan of NexCDi-F towards 2020
- 15. Conclusions Overview of 4K･8K satellite broadcasting system MMT as media transport protocol Related ITU-R Recommendations Demos on hybrid services 11-channel 8K content delivery over broadband Synchronization of multi-view videos B to B delivery is also being studied by NexCDi-F for public viewing and theaters It is expected that 4K･8K will be widely enjoyed in 2020 The Tokyo Olympic & Paralympic Games in 2020 will be delivered out to viewers through various channels 15