nab 2010 crc bernard caron on broadcasting spectrum and technologies

8/9/2019 NAB 2010 CRC Bernard Caron on Broadcasting Spectrum and Technologies

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Technologies

and theFuture of the

Broadcast Spectrum

Communications Research Centre

Bernard Caron, Vice-President, Broadcast Technologies Research

Warning: The views presented are those of the author only.


2/18

The Future of the Broadcast Spectrum

1-OTA Digital Broadcasting Services

2-New Broadcasting Services

3-Other Telecommunication Systems


3/18

Possible Scenarios for OTA DTV

Full transition from analog to digital (HDTV) services (e.g.

USA)

Hybrid model

Replicate analog coverage with DTV in major centres

Free (or low cost) Satellite or cable services elsewhere

Multiplex Model

HDTV services OTA in large cities

SDTV services (Shared DTV multiplex) elsewhere

Switch off OTA TV.

Replaced by cable, IPTV, satellite, Internet and Wi-Max

distribution


4/18

Efficient use of spectrum by OTA DTV

Multiple SD TV stations on the same channel

More efficient compression techniques: H.264/AVC (toward 1080P)

More efficient Modulation techniques: DVB-T2

Better Receiving Antennabut Rabbit Ear better than HDTVantenna on channel 12 in Qubec City

Distributed Transmitters Networks (Booth SL 11105 )

A number of low-power transmitters

Coverage can be shaped to reach only populated areas

Potential for reduced construction and operating costs Potential for spectrum saving

Needs for new tower sites may be problematic

Replace off-channel repeaters by a Single Frequency Network(SFN) for regional, provincial or national coverage

Multiple SD TV stations on the same channel

More efficient compression techniques: H.264/AVC (toward 1080P)

More efficient Modulation techniques: DVB-T2

Better Receiving Antennabut Rabbit Ear better than HDTVantenna on channel 12 in Qubec City

Distributed Transmitters Networks (Booth SL 11105 )

A number of low-power transmitters

Coverage can be shaped to reach only populated areas

Potential for reduced construction and operating costs Potential for spectrum saving

Needs for new tower sites may be problematic

Replace off-channel repeaters by a Single Frequency Network(SFN) for regional, provincial or national coverage


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Possible Distributed Transmitters Network:

TV Ontario


6/18

Improvements to ATSC DTV Coverage :

Prediction of SFN Coverage

Example of CRC-COVLAB prediction for Mobile/Fixed

See Demo in Booth SU 6512

Fixed

Mobile


7/18

2-Spectrum for New Broadcast Services

Mobile Television

Radio services using DTV Transmitters

3-D TV

New Applications: Intelligent Transportation Systems

Public Alerting

Datacasting


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Technologies for Mobile Broadcasting

Mobile Broadcasting transmission systems:

HD-Radio, DAB, T-DMB,DRM, DRM+

ATSC Mobile DTV , MediaFlo, DVB-H, ISDB-T

More efficient Audio/Video compression technologies

Wavelet-based codec

Frame rate conversion (CRC-FRC) Booth SL 11105

Multi-frame motion estimation

Bio-inspired audio coding algorithms

Smart Mobile UHF-VHF Antenna


9/18

Radio Services using DTV Transmitters

Use ATSC M/H (DVB-H, ISDB-T) Mobile DTV

transmissions for radio services instead

Radio (24-48 kbps/program) and Mobile TV service (400

kbps/program)

10-20 Radio stations in one Mobile Channel

Could include images: Album Cover, Publicity...

Text information: Traffic , Weather, Headlines

Needs receivers


10/18

Spectrum Efficient 3-D Video

Investigation on compression

technologies for 3-D video

Small increase in data

requirement

Conversion of 2-D video

programs to 3-D

(Demo in NAB International

Research Park

Booth SL 11105 )

Investigation on compression

technologies for 3-D video

Small increase in data

requirement

Conversion of 2-D video

programs to 3-D

(Demo in NAB International

Research Park

Booth SL 11105 )


11/18

New Applications for Broadcasting Technologies

Intelligent Transportation

Systems

Digital Public Alerting

Datacasting (e.g. Tagging)

Non-real time data

Smart Appliances Control

(FM-RDS)


12/18

3-Spectrum to be shared with Others

Digital dividend after the analog transmissions switch off

United States 12-6-2009

Canada 31-8-2011

UK end of 2012

Japan 24-7-2011 Russia 2015

European Community Recommendation: 1-1-2012

Various systems could share the spectrum currently allocated tobroadcast services:

IEEE 802.22 Wireless Regional Area Networks

(Unlicenced White Space Devices )

Licenced Rural and Remote Broadband Systems

MediaFlo, ATSC Mobile DTV, DVB-H, DMB

Wireless Broadband (Wi-Fi, LTE or WIMAX) in the BroadcastBand


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The Broadcasting Systems of Tomorrow

Wireless

Large Local Area

Broadband

Mobile

Flexible: Audio, Mobile TV, HDTV, 3-D, Data

Integrated with other telecommunication systems to providetwo-way interactivity: Hybrid Broadcast Broadband

Ideal formass distribution of multimedia content.


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ViewersProduction

An example of integration

Distribution Place

shifting

Distribution

Rights

Cable TVIPTV

Broadcasttransmitters

Satellite

WI-FIInternet

Cellular


15/18

A possible scenario for the spectrum

(technically)

UHF-28 (DistributedTransmitters for ATSCMobile DTV)

1 HDTV Program

2 Mobile TVPrograms

4 Radio Stations

UHF-32 (DistributedTransmitters for ATSC)

SDTV Programsfrom 5 local stations

UHF-63-64/68-69

Allocated to PublicSafetyTelecommunication

UHF-52

Broadband Wireless

VHF-6

Digital radio stations

AM

Digital RadioMondiale

FM HD-Radio (IBOC)


16/18

A challenge:

Broadcast Compatible Users Device

Multi-standard receivers

USB Connections

Bluetooth Connections

Wi-Fi Repeaters

Software Defined Radio (SDR)

Open Devices: e.g. Android

See CRC Demo in the CRC Booth (SL 11105 )

at the NAB International Research Park


17/18

Conclusions

OTA Broadcasting continue to evolve and toplay a major

role.

Radio and Television will be one part of an interactiveimmersive multimedia experience.

Ultimate goal is to get anything, anytime, anywhereona variety of devices.

Spectrum currently allocated to broadcast will be usedaround the world by:

Digital OTA broadcast stations to distribute fixed andmobile TV, Radio and Data services

New Broadcast services

Others telecommunication systems and services


18/18

Expected AchievementExpected Achievement

Thank you-MerciThank you-Merci

Communications Research Centre

Bernard Caron, Vice-PresidentBroadcast Technologies Research

613-998-2869, [email protected]

www.crc.ca

NAB Booth SL 11105 and SU 6512

nab 2010 crc bernard caron on broadcasting spectrum and technologies

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