the role of terrestrial dvb standards in broadcast / mobile broadband integration

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


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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.


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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


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Worldwide use of DVB and LTE

Red: Countries and regions with commercial LTE service

Source: WikipediaBlue: adopted or deployed in December 2014

Source: DVB



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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


1997 2004 2007 2009 2011 Draft ETSI standard

T2-lite


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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



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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


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Solution 1

HTHP

DVB

LTLP

LTE Unicast

LTLP

eMBMS





Network A

Network B



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Solution 2

HTHP

DVB

LTLP

LTE Unicast

LTLP

eMBMS





e. g. DVB-T2 network A, HD service in PLP

Network B

e. g. DVB-T2 network A, T2-lite service in PLP



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Solution 3

HTHP

DVB

LTLP

LTE Unicast

HTHP

eMBMS

Stationary Linear Cost-effective Very Expensive Cost-effective


Mobile Linear Cost-effective Very Expensive 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



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Solution 4

HTHP

DVB

LTLP

LTE Unicast

HTHP

eMBMS

Stationary Linear Cost-effective Very Expensive Cost-effective


Mobile Linear Cost-effective Very Expensive Cost-effective


Network A

Network B


For HTHP eMBMS:

modifications of LTE

standard required


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IRT trials: the DVB-T2 network


• DVB-T2 test field

• Run by Bayerischer Rundfunk and IRT

• Allows manufacturers to test their devices

• Availability: 2015 - 2019


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IRT trials: the eMBMS network



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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


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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


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linear content

Broadcast / mobile broadband integrationExample: demo app of the IRT


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Nonlinear content



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Link to nonlinear content



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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.

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Alexander Schertz

Frequency management department

the role of terrestrial dvb standards in broadcast / mobile broadband integration

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