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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference © IRT – Alexander Schertz
The role of terrestrial DVB standards in broadcast / mobile broadband integration
Alexander Schertz
Institut fuer Rundfunktechnik, Germany
CW Technology and Engineering Conference, London
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
Agenda
• The basic use cases of TV consumption today
• Mobile broadcast and broadband standards to serve them: DVB, LTE
• Cost-effective solutions for terrestrial TV distribution using these standards
• Broadcast /mobile broadband integration for these solutions
• Conclusions
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
The basic use cases of TV consumption today
Linear Nonlinear
Stationary Clearly dominating Increasing
Mobile Of minor but increasing importance
These four use cases must be served in a cost-effective way.
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
Mobile broadcast and broadband standards DVB, LTE
DVB (terrestrial) LTE
Developed by Industry-led consortium of over 200
broadcasters, manufacturers,
network operators etc.
3GPP: telecommunications standard
development organizations (ARIB, ATIS,
CCSA, ETSI, TSDSI, TTA, TTC)
Importance One of the leading international
standards
The leading world standard of the future
For the
distribution of
Linear TV Linear TV (eMBMS)
Nonlinear TV
Any other content
DVB and LTE standards
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
Worldwide use of DVB and LTE
Red: Countries and regions with commercial LTE service
Source: WikipediaBlue: adopted or deployed in December 2014
Source: DVB
DVB and LTE standards
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
The development of the DVB (terrestrial) family
DVB-T DVB-H DVB-SH DVB-T2 DVB-NGH
DVB study mission report
Trials
Commercial
No longer used
• First digital
TV standard
in Europe
• Well suited
for fixed and
portable
reception of
SDTV
• For
Handhelds
• Time
interleaving
(TI) against
burst errors
• Time slicing
(TS) for
energy
saving
• For hybrid
satellite /
terrestrial
broadcasting
• Improvements
over DVB-H:
- Turbo coding
- TI: longer
periods
- antenna
diversity
• Well suited for
HDTV and
mobile:
- Improved FEC
- 256QAM
- 16K, 32K FFT
- MISO
• Physical Layer
Pipes (PLP)
• e. g. fixed,
mobile in
parallel
• DVB-T2
profile
• Reduction of
complexity
• Code rates
2/5 and 1/3
for robustness
• e. g. for
mobile within
DVB-T2 PLP
• MIMO
• Time Frequency
Slicing with advanced
Network Planning
(TFS/ANP) to improve
coverage or capacity
• Including profile for
hybrid satellite /
terrestrial
broadcasting
DVB and LTE standards
1997 2004 2007 2009 2011 Draft ETSI standard
T2-lite
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
Using DVB for stationary and mobile reception in parallel
Stationary / mobile Advantage Disavantage
Same signal No Simulcast No optimum parameters for
both
Separate networks
Optimum parameters for
both
Endless simulcastSeparate signals in Physical
layer pipes (same FFT)
Signal for mobile in
Future Extension Frames
DVB and LTE standards
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
Standards and networks for TV distribution: cost aspect
HTHP
DVB
LTLP
LTE Unicast
LTLP
eMBMS
Stationary Linear Cost-effective Very Expensive Rather expensive
Nonlinear - Very Expensive -
Mobile Linear Cost-effective Very Expensive Rather expensive
Nonlinear - Cost-effective -
Cost-effective solutions for terrestrial TV distribution
More cost-effective alternative for stationary / nonlinear: fixed broadband
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
Solution 1
HTHP
DVB
LTLP
LTE Unicast
LTLP
eMBMS
Stationary Linear Cost-effective Very Expensive Rather expensive
Nonlinear - Very Expensive -
Mobile Linear Cost-effective Very Expensive Rather expensive
Nonlinear - Cost-effective -
Network A
Network B
Cost-effective solutions for terrestrial TV distribution
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
Solution 2
HTHP
DVB
LTLP
LTE Unicast
LTLP
eMBMS
Stationary Linear Cost-effective Very Expensive Rather expensive
Nonlinear - Very Expensive -
Mobile Linear Cost-effective Very Expensive Rather expensive
Nonlinear - Cost-effective -
e. g. DVB-T2 network A, HD service in PLP
Network B
e. g. DVB-T2 network A, T2-lite service in PLP
Cost-effective solutions for terrestrial TV distribution
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
Solution 3
HTHP
DVB
LTLP
LTE Unicast
HTHP
eMBMS
Stationary Linear Cost-effective Very Expensive Cost-effective
Nonlinear - Very Expensive -
Mobile Linear Cost-effective Very Expensive Cost-effective
Nonlinear - Cost-effective -
For HTHP eMBMS:
modifications of LTE
standard required
Proposed by
Prof. Dr. Ulrich Reimers,
Technische Universität Braunschweig
DVB-T2 network A
Network A, eMBMS signal in Future Extension Frames
Network B
Cost-effective solutions for terrestrial TV distribution
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
Solution 4
HTHP
DVB
LTLP
LTE Unicast
HTHP
eMBMS
Stationary Linear Cost-effective Very Expensive Cost-effective
Nonlinear - Very Expensive -
Mobile Linear Cost-effective Very Expensive Cost-effective
Nonlinear - Cost-effective -
Network A
Network B
Cost-effective solutions for terrestrial TV distribution
For HTHP eMBMS:
modifications of LTE
standard required
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
IRT trials: the DVB-T2 network
Cost-effective solutions for terrestrial TV distribution
• DVB-T2 test field
• Run by Bayerischer Rundfunk and IRT
• Allows manufacturers to test their devices
• Availability: 2015 - 2019
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
IRT trials: the eMBMS network
Cost-effective solutions for terrestrial TV distribution
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
IRT trials: the eMBMS network
Cost-effective solutions for terrestrial TV distribution
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
IRT trials: the eMBMS network
Cost-effective solutions for terrestrial TV distribution
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
Why broadcast / mobile broadband integration?
• Because it‘s useful:
Linear and nonlinear TV content
always & everywhere
Linking of linear and nonlinear TV
content
• Because it is possible: suitable UEs
(smartphones, tablets) will be ubiquitous
in the near future
Broadcast / mobile broadband integration
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
Integration of broadcast (DVB) and mobile broadband (LTE)
DVB tuner
LTE coder / decoder
Common
interface on the
screen of the
smartphone or
tablet User
DVB signal
LTE signal
Linear TV
Nonlinear TV
Return channel
HbbTV = Hybrid Broadcast Broadband TV
Yields links to nonlinear content
Broadcast / mobile broadband integration
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
linear content
Broadcast / mobile broadband integrationExample: demo app of the IRT
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
Nonlinear content
Broadcast / mobile broadband integrationExample: demo app of the IRT
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
Link to nonlinear content
Broadcast / mobile broadband integrationExample: demo app of the IRT
© IRT – Alexander Schertz
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Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference
Conclusions
• Four use cases of TV consumption to be served:
stationary / mobile
linear / nonlinear
• Stationary / mobile reception:
one signal for both
separate networks / separate signals
• Cost effective solutions:
linear content via broadcast network: HTHP / DVB or eMBMS (LTE)
nonlinear content via mobile broadband network: LTLP / LTE unicast
• Integration of broadcast and broadband:
DVB broadcast receiver in smartphones and tablets
common interface
Role of DVB in broadcast / mobile broadband integration 24.3.15 CW Technology and Engineering Conference © IRT – Alexander Schertz
Thank you for your attention.
Institut fuer Rundfunktechnik
Floriansmuehlstrasse 60
80939 Munich
Tel. +49-(0)89-32399-286
Fax +49-(0)89-32399-354
E-mail: [email protected] Folien/Dokumente sind durch das Urheberrecht geschützt.
Eine Vervielfältigung ist nur mit Genehmigung des Verfassers gestattet.
Dieser Urheberrechtshinweis darf nicht entfernt werden.
Alexander Schertz
Frequency management department