atsc 3.0 updatestaging.itu.int/en/itu-r/terrestrial/broadcast/americas/documents/... ·...
TRANSCRIPT
ATSC 3.0 UpdateRICH CHERNOCK
ATSC TG3 CHAIR
TRIVENI DIGITAL CSO
ADVANCED TELEVISION SYSTEMS COMMITTEE
ATSC etc.• Constrained • Maxed-Out• Inefficient• Fixed• TV-Centric
ATSC 3.0 • Configurable • Scalable• Efficient• Interoperable• Adaptable
System Layers and Specialist Groups• Conversion and redistribution of ATSC 3.0 signals for MVPDsS37, Conversion /
Redistribution
• Service and content protectionS36, Security
• Software, pictures, and soundS34, Applications / Presentation
• Organizing bits into files, streams, and packetsS33, Management / Protocols
• Sending bits over the RF channelS32, Physical
• Use Cases, Requirements, and overall program managementS31, System Requirements
ATSC 3.0 Reaches “Mainstream Status” at NAB 2017
Image reproduced with permission, photography courtesy of Robb Cohen Photography and Video
South Korea launches Broadcast UHDTV with ATSC 3.0
KBS
SBSMBC
Global UHDConference
What we’ve achieved
Time
Freq
uenc
y
Bootstrap Signal Frame
...
Preamble
L1-B
asic
Sign
alin
g
L1-D
etai
l Sig
nalin
g
...
Sub-
Fram
e Pa
yloa
d
Sub-
Fram
e Pa
yloa
d
Sub-
Fram
e Pa
yloa
d
• Extensibility / Flexibility– Bootstrap (A/321) – starting point– Possible to evolve system/physical layer
• Announces technology used in each frame
– Layers signal technologies to layer above– Allows graceful evolution over time
What we’ve achieved• Extensibility / Flexibility• Physical Layer that meets
broadcasters needs/plans– Close to Shannon Limit– TDM/FDM/LDM– Multiple PLPs– SFN– Lots of knobs to turn
0
2
4
6
8
10
12
-10 -5 0 5 10 15 20 25 30 35
BIC
M L
ink
Effic
ienc
y (b
its/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
LDM overlay spectrum
RFChannel BW
5 dB
Core Layer6 dB
Enhanced Layer
Future Extension Layer
> Indoor penetration
What we’ve achieved• Extensibility / Flexibility• Physical Layer that meets broadcasters
needs/plans• Smart Media Delivery
– Broadcast IP Transport– Segmented streaming delivery– Hybrid – combined broadcast &
broadband delivery– Realtime & NRT
Physical Layer
ATSC Link-Layer Protocol (ALP) Data Link Layer
IP IP
UDP TCP
MMTP ROUTE
HTTP ProxyHTTP
MM
T-sp
ecifi
c Si
gnal
ing
ROU
TE-s
peci
fic
Sign
alin
g
MPU (ISO BMFF)
NRT File
Delivery
DASH Segment (ISO BMFF)
NRT File
Delivery
All Signali
ng Object
s
DASH Player/DecoderMPU Player/Decoder
Broadcast Broadband
LLS (SLT)
EME/CENC EME/CENC
Anno
unce
men
t
Applications (HTML5/JavaScript)
ATSC 3.0 Physical Layer (OFDMA RF)
Tablet
WiFi
Smartphones
4G
Smart TV
Internet
PC
moovftyp moof mdatmoof mdatmoof
moovftyp moof moof moofstyp styp
ISOBMFF file
Initialization Segment Media Segment Media Segment
mdat
mdat mdatmdat
What we’ve achieved• Extensibility / Flexibility• Physical Layer that meets broadcasters
needs/plans• Smart Media Delivery• Enhanced Story-Telling
– UHD: 4K, HDR, WCG, HFR, Scalability– Fully immersive Audio– Personalized audio– HTML 5 based interactivity
NetAnnounce
Crowd
NORMAL
LocalAnnounce
PA
What we’ve achieved• Extensibility / Flexibility• Physical Layer that meets broadcasters
needs/plans• Smart Media Delivery• Enhanced Story-Telling• System that meets public service needs
– Accessibility: Closed Captioning, Open Captioning, Descriptive Video
– Advanced Emergency Alerting • Geotargetting & rich media
What we’ve achieved• Extensibility / Flexibility• Physical Layer that meets broadcasters
needs/plans• Smart Media Delivery• Enhanced Story-Telling• System that meets public service needs• Security
– CA & DRM– Secure broadband communications– Application signing– Signing of signaling
What we’ve achieved• Extensibility / Flexibility• Physical Layer that meets broadcasters
needs/plans• Smart Media Delivery• Enhanced Story-Telling• System that meets public service needs• Security• Part of the 5G eco-system
– P2MP, IoT, high speed, ultra-reliable, lifeline communications…
Why Do We Need This?
OPPORTUNITY!
