Copyright © Digital Video Broadcasting Project DVB

CPCM and Home Networkingin DVB

Peter MacAvock (with a little help from DVB friends)NGN Workshop @ Home,ETSI, Sophia Antipolis7th April 2005

MacAvock@dvb.org

20 minutes of your time ....

DVB and digital televisionwhy you’re listening to me .....

What our plans are ...Home networkingCPCM

Challenges

Conclusions

now doesn’t that sound exciting!

DVB and ETSI

DVB is an industry initiative – NOT a standardsbody

All DVB outputs are standardised viaEBU/ETSI/CENELEC JTC Broadcast

DVB standards regularly top the list of populardownloads from ETSI’s site

DVB considers there are approx. 100 millionDVB receivers in the market

Members group all sectors of the televisionindustry

DVB works by consensus based on strict IPRrules

WirelessTelecom

FixedTelecom

Broadcast......

......

......

In the beginning ....

But we’re converging ....

It has taken a long time to understand whatconvergence means ....

DVB has focused attention of making itsservices available across any access network

But there are gapsHome networking is becoming more importantA harmonised solution to copy management andcontent protection is also important

DVB doesn’t have all the answersClose co-operation required with other bodies, e.g.DLNA, OMA, etc.Let’s not re-invent the wheel ...

WirelessTelecom

FixedTelecom

Broadcast

DVB 2.0 ....

DVB in IPIP in DVB

DVB →GSM/UMTS...

next steps

Content ProtectionCopy Management

CPCM is“an end-to-end Content Protection & CopyManagement system implemented inconsumer digital products and networks toenable the authorised usage and redistributionof content (video, audio, text and data)”

DVB CPCM Looks at how to allow consumersto copy content, rather than preventing it

addresses usage cases not covered by existingsystemsCONTENT may be constrained within an AuthorisedDomainAUTHORISED USAGE meta-data is tightly bound tothe content and is called Usage State Information(USI)

Scope of DVB CPCM

Internet

PackagedMedia

Main Home

In-Car Devices& Network

Portable Devices

Second Home

Broadcast

DVB CPCM – the ultimate aim

“CPCM will be specified in terms of a set oftechnologies, interfaces and USI by whichapproved implementations will be able to

interoperate” and will not be specified in termsof “a single technology”.

Finalise the reference model

Compliance testing?

A first phase is due for completion in Q3 ‘05

Home Networking in DVB

DVB recognised the importance of HomeNetworking – particularly “wirless”

Previous initiatives were dogged by difficultiesin reaching consensus between DVB members

Activities re-started and has become one ofmonitoring the many efforts of other bodies,e.g. DLNA

DVB certainly doesn’t plan to invent newhome networking protocols .....

Responsible standardisationwhat we SHOULD be doing ....

Standardisation should add valueDon’t invent a new technique for the sake of it.

Home networking requires morecommunication than innovation

Lots of work going on, solutions could simply bereferencing other’s efforts

Content Protection Copy Management is a bigDVB work item

It’s taken ages to start achieving resultsPhase I set of specs. expects towards end Q3 ‘05

DVB-H

DVB-UMTSArchitectural

Model

DVB-T

UMTS

DVB-Ttransmitter

BroadcastContentProvider

MuxDTV

broadcast network operator

ISP Corenetwork

UMTSbase station

mobile operator

Mobileterminal

DVB-UMTS

IMT

IBOIB

II IMO

Co-operation Platform

DVB-H

Powerconsumption

is key !!!!

H

Mobile TVtrials inJapanusingISDB-T

This is the battery .....

Power consumption is one of the biggest problemsyou must address in any handheld environment

DVB-H has a solution ......

DVB-H & IPDC Biggest work area at present in DVB. Finalisingall the elements to facilitate DVB-H services:Service protection and provisionService discovery and programme guidesIPDC specifications(Q3 – 2005)

DVB-CPCM Difficult to achieve consensus in the ContentProtection, Copy Management area, buteveryone is involvedResults expect toward end Q3 – 2005 ... wehope...

Home Networks Was a big activity in 2-3 years ago, but littleconvergence between members. Now a big topicagain – close liaision with organisations workingin the area required, e.g. DLNA

Maintenance Continued work finalising:DVB-S2DVB-RCSValidation work on DVB-H

Work items in the coming year

Analogue TV in mobile handsetsDifficult to reduce handsetpower consumption, so batterylife is short

Receiver performance in amobile

environment (doppler/multipath)is poor

Free-to-air services only:unattractive business model forwireless carriers

World’s first GSM TVphone

September 2003

..... a digital solution is required

TV over 3G networks

3G networks (UMTS/WCDMA/CDMA2000)support video services at about 300kbit/s

But video services consume 10x the capacity ofvoice services. Pricing for video below about 10cper minute is unattractive for operators, evenbefore content costs are considered

If people watch about 3 hours of television perday and just 10% of viewing switches to mobile,this would still be over 500 minutes per month

€50 per month (500 minutes @ 10c/min) is tooexpensive for most consumers.

..... a cheaper solution is required

Technical Group ChairmanUlrich Reimers (Germany)

Technical Group SecretaryPeter MacAvock (Ireland)

What the DVB Project actually looks like...

How we work ....

Use existing technologies where possible ....DVB doesn’t want to re-invent the wheel

Work by consensus ....All sectors of the industry are in DVB, and the MUSTALL agree on any new DVB specifications

Intellectual Property Rights ....DVB must respect the rights of the IPR holdersDVB must also insure that its standards can beimplemented at reasonable costIPR safeguards are an important part of DVB, arealso important for Chinese industry

WirelessTelecom

FixedTelecom

Broadcast

DVB 2.0 ....

DVB in IPIP in DVB

DVB →GSM/UMTS...

Abstract Functional Entities

Unbinds content from CPCM for otherpurposes

Export Point(EP)

Unbinds content from CPCM forconsumption

Consumption Point(CP)

Performs some operation on content insideCPCM

Processing Entity(PE)

Stores content inside CPCMStorage Entity(SE)

Imports content to CPCM, optionally alsobinds it to an AD

Acquisition Point(AP)

Content, Functional Entities

AP

CPCM System

EPCP

SEC.0

CPCMContent

C.1 Input Content

C.2 ConsumedContent

C.3 ExportedContent

F.1 Acquisition

F.3 Processing

F.4 Consumption

F.2 Storage

F.5 Export

PE