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BROADCASTING
TECHNICAL EVOLUTION
Andrew King
Director : BroadSpectrum Consultants
Chair : Australian Radiocommunications S...
© 2016
MORE DETAIL (DEFINITION)
UHDTV (1)
3840 x 2160
8.3 Mpixels
Digital Cinema 2K
2048 x 1080 2.21 Mpixels
Digital Cinem...
© 2016
MORE COLOURS (GAMUT)
• UHDTV can offer more realism
• Quantization of levels
• With more colours to represent, high...
© 2016
MORE DYNAMIC RANGE
Images : Dolby Laboratories
Standard Dynamic Range
High Dynamic Range
• HDR parameters still to
...
© 2016
HIGH EFFICIENCY VIDEO CODING
• Developed by Joint Collaborative Team on Video Coding (JCT-VC) between
ISO/IEC JTC 1...
© 2016
DISTRIBUTION BITRATES
MPEG-2
Video
MPEG-4 /
AVC
HEVC
Spec. First Released 1994 2003 2013
SD 3 - 5 Mbps 1.8 - 3 Mbps...
© 2016
DVB-T2 UPDATE
• Technology
• Physical layer pipes – fixed, portable,
mobile all in one carrier
• Constellations up ...
© 2016
ATSC 3.0
• UHDTV is a key goal of ATSC 3.0
• –4k is the current focus, with 8k possible in the future
• Resolution ...
© 2016
SPECTRUM EFFICIENCY
Current Australian DVB-T
Broadcasts (3.3)
Equivalent ATSC 3.0
Broadcasts (5.2)
Equivalent DVB-T...
© 2016
EBU LTE eMBMS STUDY
Study examined the
effects of self-interference
in an LTE eMBMS
network in different
reception ...
© 2016
SPECTRUM EFFICIENCY
COMPARISON
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1 2 3 4 5 6 7 8 9 10
SpectralEfficiency(bit...
© 2016
NETWORK TOPOLOGY COMPARISONS
EBU Technical Review Q2 2014 Brugger & Schertz
HTHP coverage radius 25km vs ISD of 2, ...
© 2016
WHAT ABOUT IP DELIVERY?
• 3 hours / day of television viewing
• HD MPEG-4 AVC 5 Mbit/s
• 211 Gbytes/month of data
•...
© 2016
SUMMARY
• New television technology offers more - detail, colour and dynamic range.
• Consumer product with the lat...
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Session 3 3 andrew king

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RadComms 2016

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Session 3 3 andrew king

  1. 1. BROADCASTING TECHNICAL EVOLUTION Andrew King Director : BroadSpectrum Consultants Chair : Australian Radiocommunications Study Group 6 (Broadcasting) Consultants Pty Ltd Specialists in Broadcast and RF Spectrum © 2016
  2. 2. © 2016 MORE DETAIL (DEFINITION) UHDTV (1) 3840 x 2160 8.3 Mpixels Digital Cinema 2K 2048 x 1080 2.21 Mpixels Digital Cinema 4K 4096 x 2160 8.84 Mpixels SD (PAL) 720 x 576 0.414Mpixels HDTV 720P 1280 x 720 0.922 Mpixels HDTV 1080I or P 1920 x 1080 2.027 Mpixels UHDTV (2) Super Hi-Vision 7680 x 4320 33.2 Mpixels
  3. 3. © 2016 MORE COLOURS (GAMUT) • UHDTV can offer more realism • Quantization of levels • With more colours to represent, higher bit sample rates (10-bit) are critical UHD Colour Space (ITU-R Rec. BT.2020) Expanded colour space for more realistic pictures HD Colour Space (ITU-R Rec. BT.709) Pointer, 1980 Colours seen by human eye
  4. 4. © 2016 MORE DYNAMIC RANGE Images : Dolby Laboratories Standard Dynamic Range High Dynamic Range • HDR parameters still to be finalised in ITU-R
  5. 5. © 2016 HIGH EFFICIENCY VIDEO CODING • Developed by Joint Collaborative Team on Video Coding (JCT-VC) between ISO/IEC JTC 1/SC 29/WG 11 Moving Picture Experts Group (MPEG) and ITU-T SG16/Q.6 Video Coding Experts Group (VCEG) • Published Standard ISO/IEC 23008-2 MPEG-H Part 2 and ITU-T H.265 • Wider ranges of video characteristics, more profiles, more complexity, but offers lower transmission bitrates
  6. 6. © 2016 DISTRIBUTION BITRATES MPEG-2 Video MPEG-4 / AVC HEVC Spec. First Released 1994 2003 2013 SD 3 - 5 Mbps 1.8 - 3 Mbps 1 - 1.8 Mbps HD 10 - 18 Mbps 5 - 9 Mbps 2.5 - 4.5 Mbps 4K UHDTV (2160p50 10bit) Not Available Not Available 8 – 15 Mbps (typ) 15 – 25 Mbps (higher)
  7. 7. © 2016 DVB-T2 UPDATE • Technology • Physical layer pipes – fixed, portable, mobile all in one carrier • Constellations up to 256 QAM – increasing spectral efficiency • Interleaving – better impulse noise immunity • Initial trials • Waiting for good demodulators to become available • Europe planning to launch DVB-T2 HD services 2009 2016 • Wide and varied rollouts around the world • Fixed, portable, mobile • S. E. Asia, NZ, Fiji, Tonga, PNG • STB prices <$US30 • DVB-T2 tuner standard in larger flat panel televisions • Major CE suppliers 2016 models will all have 4K UHD, WCG & HDR. • But not necessarily to the same standards as each other Receivers
  8. 8. © 2016 ATSC 3.0 • UHDTV is a key goal of ATSC 3.0 • –4k is the current focus, with 8k possible in the future • Resolution of 3840 ×2160 • Frame rate of 60 Hz; 120 Hz is under consideration • High dynamic range • Wide colour gamut (Rec. 2020) • 10 bits/pixel • HDTV delivery to mobile and handheld devices such as tablets • Physical Layer Similarities to DVB-T2 • Same FFT sizes of 8K, 16K and 32K • Time Division multiplexing option • Physical Layer Pipe concept is same, Multiple PLP is a likely use case • Hierarchical preambles preceding frames • Low Density Parity Check for Forward Error Correction is similar, but there are new codes with different code rates • Standards Final Approval expected Q2 2017, products later
  9. 9. © 2016 SPECTRUM EFFICIENCY Current Australian DVB-T Broadcasts (3.3) Equivalent ATSC 3.0 Broadcasts (5.2) Equivalent DVB-T2 Broadcasts (5.0) DVB-T Shannon Limit ATSC 3.0 DVB-T2 Richer, Next Generation DTV: ATSC 3.0 ATSC 3.0 4096QAM Max 10.8bits/s/Hz DVB-T2 256QAM Max 6.4 bits/s/Hz
  10. 10. © 2016 EBU LTE eMBMS STUDY Study examined the effects of self-interference in an LTE eMBMS network in different reception conditions and with different inter-site distances (ISD) EBU Technical Review Q2 2014 Brugger & Schertz
  11. 11. © 2016 SPECTRUM EFFICIENCY COMPARISON 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 9 10 SpectralEfficiency(bits/s/Hz) Inter Site Distance (km) LTE SFN/eMBMS DVB-T today DVB-T2 Equivalent DVB-T2 Max ATSC 3.0 Max Japan Trial
  12. 12. © 2016 NETWORK TOPOLOGY COMPARISONS EBU Technical Review Q2 2014 Brugger & Schertz HTHP coverage radius 25km vs ISD of 2, 5 and 10km for LTLP network LTLP Network 568 BS reduce spectrum, but capex costs x18 LTLP Network 23 BS same costs, Bandwidth x 4, Blocked Spectrum x5
  13. 13. © 2016 WHAT ABOUT IP DELIVERY? • 3 hours / day of television viewing • HD MPEG-4 AVC 5 Mbit/s • 211 Gbytes/month of data • Broadcaster has to have: • additional costs for a Content Delivery Network and large scale internet access • Network requires high capacity Edge Servers • 10,000 line exchange needs 50 Gigabit Ethernet port systems! • Viewer needs: • internet plan of at least $70 / month and a connection with suitable speed • Network transmission costs between 10 and 1000 times compared to RF transmission Does this mean becomes ? Raises many service delivery, regulatory and policy issues.
  14. 14. © 2016 SUMMARY • New television technology offers more - detail, colour and dynamic range. • Consumer product with the latest display technology is imminent • More transmission capacity is required for broadcasting to take advantage of the available technology • Existing broadcasting terrestrial transmission networks are the most economical form of delivery to large number of viewers simultaneously • Other transmission methods cater to other business models

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