An Overview of DVB-H and the IP Datacast System

Ulrich Reimers, Chairman DVB Technical Module

www.dvb.org

Ulrich Reimers,Prof. Dr.-Ing.

Institut fuer Nachrichtentechnik(Institute for Communications Technology)

Technische Universitaet Braunschweig(Braunschweig Technical University)

Germany

Structure of the presentation

1. DVB-H – a quick overview2. The latest news about DVB-H3. IP Datacast – a quick overview4. Plans for the future5. Conclusion

You do know what DVB-H is all about, right ?

• DVB-H is able to deliver data rates of up to 10 Mbit/sto a battery powered terminal

• DVB-H is highly compatible with DVB-T• DVB-H therefore acts as a wide band point-to-

multipoint data downstream• In many cases the DVB-H terminal has access to a

mobile communications network (GSM, GPRS, UMTS)• DVB-H comes in versions for 5 MHz, 6 MHz, 7 MHz

and 8 MHz channels• Time slices are the tool which helps to reduce power

consumption in the terminal• A separate level of FEC enhances the robustness (in

comparison to DVB-T)

DVB-H in the worldSince about two years DVB-H has been tested in some 30 trial networksall around the world

Please visithttp://www.dvb-h-online.org/

DVB-H terminals – a selection of prototypes and products

NokiaNokia

DiBcom/Dell

Siemens /BenQ

Samsung

Motorola

Sagem

Nokia

Pace

Components and systems for DVB-H headends

Agilent TechnologiesAxceraCardinal Inf. Sys.DiBroCDMTELTI EmbeddiaEnensysEnvivioEUROTEL Fraunhofer HHIFraunhofer IMKHarmonicHarrisIrdetoMAINDATA Mayah Communications

Thales

Rohde&Schwarz

Teamcast

SIDSA

MediasyscomNagravisionNDS Nokia ProTelevision TechnologiesRohde & SchwarzSIDSASilicon & Software SystemsStreamtelTektronix Thales Broadcast and MultimediaTeamCastUDcastUBITUnique Broadband SystemsViaccess

Offered by: Offered by:

This is how Informa predicts the marketdevelopment

0

10

20

30

40

50

60

70

80

2006 2007 2008 2009 2010

DVB-HT-DMBISDB-T

Mio. users

May 2005

You did think that finding spectrum for DVB-H is difficult, right?

In Germany we did look for spectrum and we found spectrum

On 03 February 2006 the first DVB-H call for tenders closed (for Hamburg)

The following companiesapplied as DVB-H platformoperators

The following companies wish to offer their content via DVB-H

• E-Plus Mobilfunk• MFD Mobiles Fernsehen

Deutschland• NEVA Media• O2 Germany• T-Mobile Deutschland• T-Systems Business

Services• Vodafone D2

• Norddeutscher Rundfunk• Premiere Fernsehen• ProSiebenSat.1 Group• Radio Business to

Consumer• Radio Hamburg• RTL Group• RTL Radio• Truck Radio• ZDF• And others

Not bad, right????

Structure of the presentation

1. DVB-H – a quick overview2. The latest news about DVB-H3. IP Datacast – a quick overview4. Plans for the future5. Conclusion

Now that you have DVB-H…

• … you can offer your customers a very powerful IP-(Internet-Protocol-) based downstream channel, but:

• A lot of questions remains unanswered. For example:– How will the customer detect the services on offer?– How will the customer navigate through the

services?– Which protocols will be used on top of IP?– Which kind of audio coding is used?– Which kind of video coding is used?– How can you manage access to the services?– Will handover and roaming be possible?

• This is where IP Datacast comes into play

The set of IP Datacast (Phase 1) specifications consists of the following documents:

• Set of Specifications for Phase 1• Use Cases and Services • Architecture• PSI/SI• Content Delivery Protocols (CDP)• Electronic Service Guide (ESG)• Service Purchase and Protection” (SPP)

And in addition, audio and video coding formats aredescribed in the DVB guidelines document TS 102 005

Architecture of the IP Datacast System

X-3 Air

Inte

rfac

e

Interactive Network

Broadcast Network

Service application

Service

Management

Terminal

- Carriage of A/V streams, files

-PSI/SI

- ESG metadata and ptm delivery

-Access control to service applications -ESG metadata and ptp delivery

-DVB-H

Point-to-point transport services: - SMS/MMS - IP connectivity

CBMS-2

CBMS-3

CBMS-1

CBMS-4

CBMS-5

X-1

X-2

CBMS-6

CBMS-7

Fully specified by DVB-CBMS Specified up to TCP/IP by DVB-CBMSConsidered to be valuable ref. points

Not in scope of DVB-CBMS

In direct scope of DVB-CBMS

Content Creation

A few words about the SPP specification

• It will never win a beauty contest since it is a result of a lot of very difficult negotiations which did notlead to one solution

• The specification includes as mandatory in the main body of the text the three transport encryption components ISMACryp, IPsec and SRTP. All IP Datacast terminals will have to implement all three.

• Two annexes describe the “Open Security Framework” and the “18Crypt Profile”, respectively. Both annexes are optional.

• It will be very interesting to see which markets will adopt which of the two solutions

Plans for the future of DVB-H

• All major DVB deliverables are intended to live for several years

• But eventually they will need successor systems• The typical example is DVB-S => DVB-S2• We just started a study mission on a possible DVB-T2

system• A study mission on a possible DVB-H2 system is due

to be started in 2007• A specification may then be finalized in 2008• And is it unthinkable that DVB-H2 and DVB-T2 will be

interrelated systems?

This will be the next steps in the development of the IP Datacast system

• Specifications Maintenance• Implementation guidelines for

– Electronic Service Guide (ESG)– Content Delivery Protocols– Mobility and Roaming

• New features– Mobility and Roaming– Notification/Triggers– ESG over the bidirectional link

• Harmonization with OMA BCAST• ….…and after 2006 we will look into IP Datacast

Phase 2.0

Thank you for your interest !

An Overview of DVB-H and the IP Datacast SystemStructure of the presentationYou do know what DVB-H is all about, right ?This is how Informa predicts the market developmentYou did think that finding spectrum for DVB-H is difficult, right?On 03 February 2006 the first DVB-H call for tenders closed (for Hamburg)Structure of the presentationNow that you have DVB-H…The set of IP Datacast (Phase 1) specifications consists of the following documents:A few words about the SPP specificationPlans for the future of DVB-HThis will be the next steps in the development of the IP Datacast systemThank you for your interest !