Nov.22,2010

Yoshiki MARUYAMA

SUBTEL Adviser y JICA Expert

Terrestrial

Digital TV Broadcasting

Current status in Japan

Digital TV Technical Seminar en UNIACC

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To begin with

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What is Terrestrial digital TV broadcasting ?

High quality video and audio

New information services

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What is Terrestrial digital TV broadcasting ?

High quality video and audio

Terrestrial digital TV broadcasting is a new format of broadcasting that enables the viewer to receive higher quality video and audio signals than conventional analog TV, with no ghost images and no noise.

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What is Terrestrial digital TV broadcasting ?

New information services

Terrestrial digital TV broadcasting enables wide

range of new services not only HD programs

featuring outstanding audio and video quality, but

also interactive functions, aide-services for the

elderly and disabled, useful regional information

and “One-Seg" services for mobile phones and

other mobile devices are also being offered.

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Why are we switching over to digital ?

Effective use of radio waves

Global trends

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Why are we switching over to digital ?

Effective use of radio waves

Radio waves are already being used at full capacity.

Digitization can make room for more channels by

means of compression technology.

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Why are we switching over to digital ?

Effective use of radio waves

Analog TV

90-222MHz (VHF 1-12ch)

Analog TV & Digital TV

470-770MHz (UHF 13-62ch)

90-108MHz 170-222MHz

Digital TV

470-710MHz (13-52ch)

715-

725MHz

730-

770MHz

Multimedia Telecommunications Multimedia

Mobile phone

After switch over

ITS

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Multimedia broadcasting

Applications for disaster control

Intelligent Transport (ITS)

Growing number of mobile phones

Make more safety and more convenient in your lifestyle !

Security maintenance

Firefighting/ emergencies

Disaster control, etc.

Alert with

buzzer

Control station

Command station

New Service is realized by Utilizing Released Frequencies

Command station

Command station

Movies

NewspapersMusic

Novels

TicketsVarious types

of content

■ File casting service:

Viewers can store the video files and watch

them later, unlike conventional TV broadcasting.

Automatically stored

to your cell phone

Can be used any time

Concerts

News

Sports

Get the information

you want, in real time

■ High-quality streaming service:

Viewers can watch the video as they receiving it,

just like conventional TV broadcasting.

Why are we switching over to digital ?

Respond to frequency needs

for the growing number of

mobile phones.

Video and data information

on status of emergency are

helpful.

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Why are we switching over to digital ?

Global trends

Terrestrial digital TV broadcasting first began in the UK in 1998. Now, digital broadcasting has become a global trend, with broadcasts in more than 20 countries and regions around the world, including the U.S., Germany, and Italy in the west and Korea, China, and Vietnam in Asia.

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Why are we switching over to digital ?

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How to watch it ?

In the case of an individual antenna

In the case of a community antenna for multifamily housing

In the case of cable TV

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How to watch it ?

In the case of individual antenna

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How to watch it ?

In the case of community antenna for multifamily housing

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How to watch it ?

In the case of Cable TV Pass-through type

Trans-coding type

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Current services in Japan

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¡ Imágenes en HD !

Imágenes de alta calidad, más anchas (relación 16:9),

junto a un audio con calidad de CD, proporcionan una

mayor sensación de realidad.

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¡ Dos o tres programas en un sólo canal !

El ancho de banda de un canal puede ser utilizado para

transmitir 2 o 3 programas en definición estandar.

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¡ Noticias e información del clima en cualquier

momento !

Noticias, clima y otra información práctica está disponible

mediante transmisión de datos a un click del control

remoto.

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Guía de Programación Electrónica (EPG)

Se puede ver la programación de los próximos 7 días.

Las grabaciones programadas se ajustarán

automáticamente si cambian los horarios.

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TV en el celular (One-Seg)

El servicio One-Seg envía imágenes a celulares,

notebooks, etc. Esto permite ver televisión gratis en

cualquier momento y en cualquier lugar.

Este servicio puede ser de gran ayuda en situaciones

de emergencia.

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Servicios interactivos

Un enlace bidireccional (Internet), permite la

participación en programas interactivos, como compras

o juegos.

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Audio 5.1ch surround stereo

El audio 5.1ch surround stereo permite escuchar tal

como si estuviera en una sala de conciertos.

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How do we switch over from analog to

digital in Japan ? analog

digital

25 25

Perfil de Japón

26 26

Perfil de Japón

Población 127 millones

Número de hogares 48 millones

Superficie de Japón 378,000km2

Receptores de TV 100 milliones

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Perfil de Japón

Red de TV terrestre

6 redes grandes de TV en Tokyo

(NHK, Fuji-TV, TV Asahi, Nippon-TV,TBS, TV Tokyo)

Independientes

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Digital receivers

0

20

40

60

80

100

120

140

160

180

Ene May Sep Ene May Sep Ene May Sep Ene May Sep Ene May Sep Ene

Moviles

Fijos

162.2millones de receptores en mercado

2005 2006 2007 2008 2009 2010

(Unidad: millón) (Abril 2010)

86.3 millones de receptores de moviles fueron enviados a finales de Abril de 2010.

75.9 millones de receptores de fijos fueron enviados a finales de Abril de 2010.

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Digital receivers

75.9 96.3

79.1

86.3

1.1

162.2

97.4 79.1

0

20

40

60

80

100

120

140

160

180

Receivers DTT (Millions)

Estadísticas oficiales: “DVB Worldwide” y JEITA

Moviles

Fijos

ISDB-T DVB-T&H ATSC(Japón) (UE) (EEUU)

en 6 años en 11 años en 11 años

Móvil: 0

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Goal

0

500

1000

1500

2000

2500

3000

3500

4000

4500

5000

Year

Num

ber

of h

ouse

hold

s (1

0,00

0 ho

useh

olds

)

World Cup held in Germany

Beijing Olympics

World Cup in South Africa

2003 2004 2005 2006 2007 2008 2009 2010 2011

Penetration into 48 million households

(all households)

Penetration

Into 10 million households

Penetration into 24 million households

(half of all households)

Athens Olympics

Objectives for the penetration

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Goal

As of Oct.7,2010

Digital terrestrial receivers diffused

85.69 million

PDP & LC TV 55.66

CRT 0.72

D-Tuner 19.86

STB for CATV 0.945

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Roadmap

1999 ISDB-T MIC established Technical Standards

2003 Digital television broadcasting launched in the three major cities

2006 Digital television broadcasting reached to cover all over the country

Analog broadcasting shall be terminated on July24,2011 Government decision

2002 MIC established license requirements

2003 MIC issued the provisional licenses

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Simulcast broadcasting

Digital broadcasting

Analog broadcasting

Period of Simulcast

Dec,2003

July24,2011

Terminate !

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Termination At Noon of July24,2011

From July1,2011

Only 249 days left

From Jan.2008

From Jan.2011

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Migration must be performed as part of state policy.

The collaborative alliance among Government and

broadcasters are necessary.

Support from Government to broadcasters is required.

On 2001, National Promotion Association for Digital

Terrestrial Television Broadcasting was organized.

The collaborative alliance

Government Broadcaster

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Members

MIC (Ministry of Internal Affairs and telecommunication)

NHK (Public broadcaster )

Commercial broadcasters ( 127 companies )

National Promotion Association

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Organization

National Promotion Association

General assembly

Steering committee

Working group of Promotion

Working group of Transmission

Working group of Reception

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Working group of Promotion

Working group of Transmission

Working group of Reception

National Promotion Association

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Working group of Promotion

Working group of Transmission

Working group of Reception

National Promotion Association

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Working group of Promotion

Mission

Promotion activities is key to success

Prime Minister nominated key announcers to serve as Promotion Ambassador

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Working group of Promotion

Promotion activities

Local seminar

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Working group of Promotion

Working group of Transmission

Working group of Reception

National Promotion Association

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Working group of Transmission

Mission

Channel allocation

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Channel allocation

The

num

ber

of tr

ansm

issi

on s

tatio

ns

for

anal

ogue

TV

0

100

200

300

400

500

600

700

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62

(VHF) (UHF) Channels

UHF lower channels

(13-32) Reallocation of analog channel

except big-power stations

13 14 15 16 17 18 19 … … … 25 26 27 28 29 30 31 32

Digital big-power stations

…

Disuse

Disuse

Working group of Transmission

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Working group of Promotion

Working group of Transmission

Working group of Reception

National Promotion Association

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Mission

Prevention against analog and digital interference

Working group of Reception

Analog interference

Digital interference

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Call centers are required

Working group of Reception

Digital

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Radio measurement

Working group of Reception

Radio measurement vehicle

“Rapid radio measurement”

Blue road indicates “recieve condition is good

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To reduce costs of construction for relay stations

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Cooperative strategy

To reduce costs of construction for relay stations

NHK and Commercial broadcaster had owned different

specification each other.

After the discussion, they reached agreement to have

common requirements and specifications, known as orange

book.

As the result of agreement, cooperative construction

become possible.

This result is in excellent success with cost reducing.

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Cooperative strategy

Example of

cooperative construction

June,2009 Augst,2009 Nove.,2009 Mar.,2010 Oct.,2010

“Tokyo sky tree” will open on 2012.

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cooperative construction

Utsunomiya Utsunomiya

Cooperative strategy

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Expansion of digital service area

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Expansion of digital service area

Dec,2003

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Dec,2004

Expansion of digital service area

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Dec,2005

Expansion of digital service area

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Oct,2006

Expansion of digital service area

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Dec,2006

Expansion of digital service area

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Features of ISDB-T

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Multi-carrier system

Segmented structure

Time interleaving function

Features of ISDB-T

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Multi-carrier system

Features of ISDB-T

6MHz

bandwidth

For fixed reception

For mobile reception

Frequency

6MHz

bandwidth

7 or 8MCHz

bandwidth

ISDB-T (Japan & Brazil) DVB-T (Europe) ATSC (U.S.A)

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Provision for OFDM

Any carrier has same bandwidth.

Cross-points are always at zero spectrum.

Features of ISDB-T

Multi-carrier system is robust against interferences

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11 9 7 5 3 1 0 2 8 4 6 10 12

5.6MHz

TV Band =6.0MHz

Segmented structure

Features of ISDB-T

HD SD One-Seg SD

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Features of ISDB-T

18:00h

SDTV

(Deporte)

SDTV

(programa de

humores)

SDTV

(Telenovela)

Servicios

para el

receptor

Móvil

(One-Seg)

19:00h

SDTV

(fútbol,

programa principal)

SDTV

(fútbol, en otro

ángulo)

SDTV

(fútbol,

escenas de goles)

20:00h

HDTV

Película

(low bit rate)

SDTV

Béisbol

(canal especial)

21:00h

HDTV

Película

…

Tim

e

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Fixed service and Mobile service are

managed individually.

fixed mobile

One-Seg SD Multi or HD

Fixed and Mobile services are

transmittable by single transmitter.

fixed mobile

DVB-H SD Multi or HD

ISDB-T DVB-T DVB-H

Features of ISDB-T

Segmented structure

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Features of ISDB-T

Time interleaving function

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Interleaving

No-Interleaving

TV Station Transmission Path

Receivers

Original data

Correction is difficult

because continuous errors.

Error correction makes

perfect ! Errors are produced by

the interference

Interleave data

in accordance

with set rules

ATSC & DVB-T

ISDB-T

Features of ISDB-T

Time interleaving function

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Experimental test for robustness

Features of ISDB-T

Time interleaving function

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ATSC system (U.S.A)

Experimental test result

Features of ISDB-T

Time interleaving function

DVB-T system (Europe)

ISDB-T system (Japan & Brazil)

No degradation.

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Japón: Octubre 2003 Comenzó servicio de TDT Brasil： Junio 2006 Adoptó la ISDB-T Diciembre 2007 Comenzó servicio de TDT Perú： Abril 2009 Adoptó la ISDB-T Marzo 2010 Comenzó servicio de TDT Argentina： Agosto 2009 Adoptó la ISDB-T Abril 2010 Comenzó servicio de TDT Chile： Septiembre 2009 Adoptó la ISDB-T Venezuela: Octubre 2009 Adoptó la ISDB-T Ecuador: Marzo 2010 Adoptó la ISDB-T Costa Rica: Mayo 2010 Adoptó la ISDB-T Paraguay: Junio 2010 Adoptó la ISDB-T Filipinas: Junio 2010 Adoptó la ISDB-T Bolivia： Julio 2010 Adoptó la ISDB-T

Familia de los Países de ISDB-T

Perú

Ecuador

Venezuela

Brasil

Chile

Argentina

16.5

39.1

13.4

27.9

27.9

183.9

Filipinas 88.6

※El número del color rojo es la “población”. (millión)

Bolivia 10.0

Paraguay 6.1

Colombia

Uruguay

45.6

3.3

El primer foro se celebró en Perú

el 21 de septiembre del 2009

（Centro: el Ministro Haraguti

(Japón))

El 2º foro se celebró en Argentina

el 3 de mayo del 2010

（Izquierda: el Secretario del Estado

Naito (Japón))

Costa Rica 4.5

ISDB-T es la norma dominante en Sudamérica

El Fórum Internacional ISDB-T ya se ha puesto en marcha.

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Gracias por su atención!

END

Digital TV Technical Seminar en Universidad Santa Maria