Features of ISDB-T and Activities to spread watching DTV ...and Activities to spread watching DTV in...
Transcript of Features of ISDB-T and Activities to spread watching DTV ...and Activities to spread watching DTV in...
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DiBEGDigital Broadcasting Experts Group
Features of ISDB-Tand
Activities to spread watching DTVin Japan
October 20, 2003October 20, 2003Jakarta, IndonesiaJakarta, Indonesia
Atsumi SUGIMOTOAtsumi SUGIMOTODiBEGDiBEG
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Contents
• What is DiBEG? • Features of ISDB-T• Activities to spread watching DTV in Japan
– Schedule of Digital Broadcasting in Japan– Volume of Shipments of Digital TV Sets and Set-Top-boxes – Targets of Diffusion of Digital Terrestrial TV receiver units– Analogue Channel Re-arrangement– DTTV License Policy– National Organizations for Promoting
• Recently announced DTTV products• The Development of New Services • Conclusions
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What is DiBEG?
• The Digital Broadcasting Experts Group (DiBEG) was founded in September 1997 for the key forces to promote the Japanese Digital Terrestrial Broadcasting System ISDB-T and ISDB-TSB into the world.
• Today, DiBEG has 25 members, including broadcasters, broadcast equipment manufacturers and consumer electronics manufacturers etc.
• DiBEG is now one committee of ARIB (Association of Radio Industries and Businesses)
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DiBEGDigital Broadcasting Experts Group
Features of ISDB-T
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ISDB-T is ・・・・
• ISDB-T system was developed by the Association of Radio Industries and Businesses (ARIB) in Japan.
• ISDB (Integrated Digital Services Digital Broadcasting) is a new type of broadcasting intended to provide audio, video, and multimedia services. T is Terrestrial.
• ISDB-T is one of ISDB family.• ISDB-T uses a modulation method referred to as
Band Segmented Transmission (BST) OFDM
ISDB-T Demo
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The Correct Setting of the Requirements
Market Requirements for ISDB-T• HDTV• Multi SDTV• Mobility• Portability• Data Broadcasting• Effective Spectrum Utilization• Flexibility
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The Correct Design of the System
Technical Specifications• OFDM
– Robustness, SFN (Single Frequency Network)
• Segmented Structure– Extensible, Partial Reception
• Time Interleaving– Mobile Reception, Indoor Reception
• TMCC ( Transmission and Multiplexing Configuration Control )– Flexible, Versatile
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Transmission Scheme
• Band Segmented Transmission OFDM• Bandwidth of an OFDM-Segment:
• 6/14MHz (428.6kHz) or 8/14MHz (571.4kHz)
• Number of OFDM Segments: 13
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Segmented Structure and Partial Reception
6MHz or 8MHz
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Transmission Scheme
• Band Segmented Transmission OFDM• Bandwidth of an OFDM-Segment:
• 6/14MHz (428.6kHz) or 8/14MHz (571.4kHz)
• Number of OFDM Segments: 13• Partial Reception
– One-segment ISDB-T receiver can receive a centered segment of ISDB-T signal.
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Segmented Structure and Partial Reception
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Transmission Scheme
• Band Segmented Transmission OFDM• Bandwidth of an OFDM-Segment:
• 6/14MHz (428.6kHz) or 8/14MHz (571.4kHz)• Number of OFDM Segments: 13
• Partial Reception– One-segment ISDB-T receiver can receive a centered
segment of ISDB-T signal.
• Hierarchical Transmission– Three layers– Modulation, Coding rates, Length of Time interleaving
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Segmented Structure and Partial Reception
Sound / Data HDTVLayer A Layer B
An Example of
Hierarchical
Multiplexing
Parameter64QAM 3/4 12 segments
16QAM 1/2 1 segment
Bit rate 16.9 Mbps 630 kbps
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Three Mode of ISDB-T
64QAM
16QAM
QPSK
DQPSK
Mode3(8K)Mode2(4K)Mode1(2K)
MobileSDTV
Fixed
HDTV/SDTV
Mobile
&
Fixed
HDTV/SDTV
TMCC can change the mode any time to any combination.
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Parameters of ISDB-T(6MHz Bandwidth)
up to Three LayersHierarchical Transmission
Convolutional Code (1/2, 2/3, 3/4, 5/6, 7/8)Inner Coding
RS(204, 188)Outer Coding
499228091405Total Carriers
0, 0.125, 0.25, 0.5secTime Interleaving
1/4 , 1/8 , 1/16 , 1/32 of Active Symbol DurationGuard Interval Duration
204No. of Symbols per Frame
1,008μsec504μsec252μsecActive Symbol Duration
DQPSK, QPSK, 16QAM, 64QAMModulation
0.992kHz1.984kHz3.968kHzCarrier Spacing
3.65Mbps ~ 23.23MbpsUseful Bit Rate
5.572MHz5.573MHz5.575MHzUseful Bandwidth
13No. of OFDM Segment
Mode 3Mode 2Mode 1ISDB-T Mode
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Parameters of ISDB-T(8MHz Bandwidth)
up to Three LayersHierarchical Transmission
Convolutional Code (1/2, 2/3, 3/4, 5/6, 7/8)Inner Coding
RS(204, 188)Outer Coding
499228091405Total Carriers
0, 0.125, 0.25, 0.5secTime Interleaving
1/4 , 1/8 , 1/16 , 1/32 of Active Symbol DurationGuard Interval Duration
204No. of Symbols per Frame
756μsec378μsec189μsecActive Symbol Duration
DQPSK, QPSK, 16QAM, 64QAMModulation
1.322kHz2.645kHz5.291kHzCarrier Spacing
4.87Mbps ~ 30.98MbpsUseful Bit Rate
7.430MHz7.431MHz7.434MHzUseful Bandwidth
13No. of OFDM Segment
Mode 3Mode 2Mode 1ISDB-T Mode
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DTTV System Selection Guideline
ISDB-TResistivity against impulse noise
Mobility and Portability ISDB-T >> DVB-T
ISDB-T>> DVB-THierarchical transmission (Multiple modulation systems simultaneously in the same channel is possible)
DVB-T, ISDB-TResistivity against multi-path distortion
DVB-T, ISDB-TWide area single frequency network (SFN) operation
ISDB-TSystem commonality with digital terrestrial sound broadcasting (One segment receiver is available)
ATSCMaximum bit rate under Gaussian noise environment
System conform to requirementsRequirements
Any improvement of digital receiver was not considered to make the table below.
Brazilian Test Results
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DiBEGDigital Broadcasting Experts Group
Activities to spread watching DTVin Japan
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1996
Tokyo, Osaka, Nagoya
Satellite(BS)
Cable
TerrestrialPilot trial
2000 2005 2010Satellite
(CS)
The end of 2000
20031998~2003 2006
Others2011
Analog
Analog/Digital Fully digital
Target of end
Analog
2011?
1996
End of Analog HDTV End of Analog SDTV ?
Schedule of Digital Broadcasting in Japan
110CS
2007
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Cumulative Total of shipments of BS Digital Receiver
0
500
1,000
1,500
2,000
2,500J-
S-00
Nov
-00
Jan-
01M
ar-0
1M
ay-0
1Ju
l-01
Sep
-01
Nov
-01
Jan-
02M
ar-0
2M
ay-0
2Ju
l-02
Sep
-02
Nov
-02
Jan-
03M
ar-0
3M
ay-0
3Ju
l-03
Month and Year
The a
ccum
ula
tive
Tota
l of
Ship
ments
(K
sets
)
CRT PDP STB
The World Cup
As of Aug 31, 2003Total: 2,238KsetSet Top Box: 834KsetIntegrated TV (CRT): 1,124KsetIntegrated TV (Plasma) : 280Kset
BS broadcasting
launched
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Volume of Shipments of Digital TV Sets and Set-Top-boxes--Sales Achievements and Projections--
0
1
2
3
4
5
6
7
8
9
10
2000 2001 2002 2003 2004 2005 2006 2007
0
2
4
6
8
10
12
14
16
18
20
Integrated TV Set Set-Top-Box Cumulative Total
The volume ofShipments (Millions)
Cumulative Total
(Millions)
Source: JEITA Electronics and Statistics Committee AV Forecast Working Group
As of Aug 31, 2003Total: 2,238KsetSet Top Box: 834KsetIntegrated TV (CRT): 1,124KsetIntegrated TV (Plasma) : 280Kset
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Targets of Diffusion of Digital Terrestrial TV receiver units
Roundtable Conference on the Future Aspects of Broadcasting in the Broadband Age formulated the Targets of diffusion of terrestrial digital TV receiver units on April 15.
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Targets of Diffusion of Digital Terrestrial TV receiver units
Roundtable Conference on the Future Aspects of Broadcasting in the Broadband Age formulated the Targets of diffusion of terrestrial digital TV receiver units on April 15.
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Schedule for Roll-Out of Digital Terrestrial TV Broadcasting
• Digital terrestrial broadcasting will begin in the three major metropolitan areas of Tokyo, Osaka, and Nagoya in December 2003.
• The government's plan describes a schedule for broadcasting to have started in all major cities by the end of 2006, and for current analog broadcasts to have been completely replaced with digital broadcasting by July 2011.
• In view of the launch of digital terrestrial broadcasting, an analog-to-analog shift (Re-arrangement of analogue TV channels) has already started last February. This shift changes the frequencies used by analog terrestrial broadcasting to secure the channels needed for digital broadcasting.
The analog to analog shift was
launched on Feb. 9.
Reference: http://www.nhk.or.jp/strl/open2003/en/tenji/011.html
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Frequency Circumstance in Japan and Analogue Channel Re-arrangement
The
num
ber o
f tra
nsm
issi
on s
tatio
nsfo
r ana
logu
e 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 UHFChannels
UHF lower channelsbasically
Re-arrangement of analoguechannelsexcept major transmitters
Re-arrangement ofanalogue channels
13 14 15 16 17 18 19 … … …25 26 27 28 29 30 31 32
ISDB-T channels
…
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DTTV License Policy
Programme• 2/3 of DTTV programs are same with programs of analog TV broadcasting a
day.• HDTV programs should be televised at more than 50% of broadcasting
hours a week.• Broadcasters must televise more than 10% educational programs and
more than 20% cultural programs a week.
Further requirements• Broadcasters build relay stations without hesitating.• Broadcasters positively televise programs for sight and hearing
handicapped persons.• Broadcasters are able to make engineering services.
Sept.27,2002
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National Organizations for Promoting
The smooth implementation of DTTB
Minister,MPHPTVice-Minister, MPHPTSecretary General, MPHPTExecutives,MPHPT
Mr.KatayamaMinister,MPHPT(Head)
Aug 2003
Terrestrial Digital Broadcasting Promotion Headquarters, MPHPT
FunctionsMembersRepresentativeSetupOrganization
Analogue channel shifts & publicity
NHK, 127 Commercial TV broadcasters, Government (MPHPT)
Mr. Kitagawa(President)
July2001
National Council forPromotion of digitalterrestrialbroadcasting
Follow-up of theaction planfor digital migration
NHK, 127 commercial TV broadcasters, Government (MPHPT),Manufacturers, RetailersConsumers society
Mr. Yamaguchi(Chairman)
May2003
National Conference for promotion of terrestrial digital broadcasting
Enforcementof RX/TX std.Operation of ESRMP
NHK, 127 commercial TV broadcasters,153 Receiver -Manufacturers etc.
Mr. Kitagawa(Chairman)
Aug 2003
The association for promotion of digital broadcasting(D-PA)
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DiBEGDigital Broadcasting Experts Group
Recently announced DTTV products
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Toshiba Launched the Sale of New TV Sets
• Four tuners (ISDB-T, ISDB-S for BS, ISDB-S for CS110, Analog terrestrial ) are installed.
• Equips LAN terminal for interactive TV• Upgraded software can be installed by a customer .
April 21
Reference: http://www.toshiba.co.jp/about/press/2003_04/pr_j2101.htm
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Sharp Launched the Sales of New LCD TV Sets on July 9
• LC-37AD1 and LC-37AD2– 37” LCD display– For HDTV (1366×768 pix) – Separated tuner (NTSC analog, ISDB-S and
ISDB-T) • LC-30AD1 and LC-30AD2
– 30” LCD display– For HDTV (1280×768 pix) – Display is provided with tuner
• LC-22AA1– 22” LCD display– For wide TV (854×480 pix)
37AD130AD1
22AA1
LC-37AD2 and LC-30AD2 LC-37AD1 and LC-30AD1
Installed Video processing Board
ISDB-T tuner module
ISDB-S tuner module
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Sanyo Announced the sales of New TV Sets
• PDP(42”, 37”) and LCD (30”)
• Four tuners (ISDB-T, ISDB-S for BS, ISDB-S for CS110, Analog terrestrial ) are installed.
• Pixel– PDP 1024 ×1024– LCD 1280 ×768
• Sanyo will launch the sales on Oct. 1
Aug 6
http://www.sanyo.co.jp/koho/hypertext4/0308news-j/0806-2.html
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Toshiba Launched the Sale of New TV Sets
• Four tuners (ISDB-T, ISDB-S for BS, ISDB-S for CS110, Analog terrestrial ) are installed.
• Equips LAN terminal for interactive TV• Upgraded software can be installed by a customer .
April 21
Reference: http://www.toshiba.co.jp/about/press/2003_04/pr_j2101.htm
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Sharp Launched the Sales of New LCD TV Sets on July 9
• LC-37AD1 and LC-37AD2– 37” LCD display– For HDTV (1366×768 pix) – Separated tuner (NTSC analog, ISDB-S and
ISDB-T) • LC-30AD1 and LC-30AD2
– 30” LCD display– For HDTV (1280×768 pix) – Display is provided with tuner
• LC-22AA1– 22” LCD display– For wide TV (854×480 pix)
37AD130AD1
22AA1
LC-37AD2 and LC-30AD2 LC-37AD1 and LC-30AD1
Installed Video processing Board
ISDB-T tuner module
ISDB-S tuner module
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Sanyo Announced the sales of New TV Sets
• PDP(42”, 37”) and LCD (30”)
• Four tuners (ISDB-T, ISDB-S for BS, ISDB-S for CS110, Analog terrestrial ) are installed.
• Pixel– PDP 1024 ×1024– LCD 1280 ×768
• Sanyo will launch the sales on Oct. 1
Aug 6
http://www.sanyo.co.jp/koho/hypertext4/0308news-j/0806-2.html
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Sony announced ISDB-T STB
• For ISDB-T and ISDB-S (BS +CS110)• Though open-priced, the STB is likely to be sold for about 600$.• Sony will launch the delivery on October 21.
Aug 7
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Panasonic Launched the Sale of New TV Sets on Sep. 1
• Three types: TH-36D50 (36”), and TH-32D50(32”) and TH-28D50 (28”)
• Four tuners (ISDB-T, ISDB-S for BS, ISDB-S for CS110, Analog terrestrial ) are installed.
• Equips LAN terminal (10BASE-T) for• Tnavi• Browser for Tnavi is installed.• EPG for all tuners is installed.
Aug 8
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• ISDB-T tuner are installed in 37”, 42”, 50”PDP TV and 32”, 26”, 22” LCD TV.
• Panasonic will launch the sales from Sep. to Oct.
Panasonic Announced the Sale of New PDP and LCD TV Sets
Aug 21
PDP TV
37 42 50
LCD TVTuner and MPEG-2 Decoder
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• ISDB-T tuner are installed in 37”, 42”, 50”PDP TV and 32”, 26”, 22” LCD TV.
• Hitachi will launch the sales on Sep 25.
Hitachi Announced the Sale of New PDP and LCD TV Sets
Aug 20
LCD
PDP
28 32
32 37 42
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• New models– PDP 61”, 50”, 42” 9models– LCD 42”, 37”, 32” 3models– CRT 28”, 32”, 28” 3models
• Sony will launch the sales of the digital TV sets next Oct. And next Nov.
Sony Announced the Sale of New Digital TV Sets Aug 28
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DiBEGDigital Broadcasting Experts Group
The Development of New Services
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Toyota Central Lab demonstrated HDTV Mobile Reception using Adaptive Array Antenna
UHF 15ch (whole segment reception)
Mode 3, 64QAM, 3/4
Guard interval: 1/8(128μs)
Pole type antenna Adaptive Array Antenna(conventional) attached on wind shield
Reception rate
Pole type antenna
Adaptive Array
Antenna
Adaptive Array Antenna
Jan 29,2003
Reference: http://ne.nikkeibp.co.jp/DTV/2003/01/1000016922.html
Threshold C/N=20.1dB
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Segmented Structure and Partial Reception
Sound / Data HDTVLayer A Layer B
An Example of
Hierarchical
Multiplexing
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Prototype of Cellular Phone with a ISDB-T one-segment receiver
• One-segment demodulator LSI announced last Oct. is installed in 3G cellular phone.
• Specifications;– UHF13~62ch– Multiplexing; MPEG-2 TS– Video coding; MPEG-4 simple profile * – Video resolution; SQVGA
4:3(160x120pix), 16:9(160x90), 15f/s– Audio coding; MPEG-2 AAC LC profile– Software for EPG and data broadcasting
is not installed yet.• NEC demonstrated at Telecom2003.
* Video coding system for ISDB-T one-segment broadcasting has not been decided yet. NEC temporally used MPEG-4 SP for this demonstration.
July 10
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• Sanyo announced one-segment receiver installed in cellular phone.
• Specifications;– Diversity reception – UHF13~53ch– Multiplexing; MPEG-2 TS– Video coding ; MPEG-4 Simple profile L1* , QVGA 15f/s– Audio coding; MPEG-2 AAC LC profile– Display; 176x200pix organic LE panel– Recordable on flash memory 128MB=30min – Weight; 150g– 960mAh lithium ion battery;
• 420hours stand-by mode or 90minuites TV reception
• Sanyo demonstrated at CEATEC JAPN2003.
Aug 8
* Video coding system for ISDB-T one-segment broadcasting has not been decided yet. Sanyo temporally used MPEG-4 SP for this demonstration.
Prototype of Cellular Phone with a ISDB-T One-Segment Receiver
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ISDB-T One Segment Front-End Module and Antenna
• Panasonic announced ISDB-T one-segment front-end module for cellular phone and PDA etc.
• RF tuner circuit and OFDM demodulator are installed in this module.
• Specifications;– Size; 20mm×28mm×2mm – VHF 7ch, UHF13~53ch– Power Consumption; 200mW– Length of the antenna; 50mm– Modulation; DQPSK and QPSK
and 16QAM• Product sample will be shipped
from this autumn.
Antenna Element
Antenna ControlModule
ISDB-T One segmentFront End Module
July 17
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ISDB-T One Segment Tuner Module
• Sony announced ISDB-T one-segment tuner module for cellular phone and PDA etc.
• RF tuner circuit and OFDM demodulator are installed in this module.
• Specifications;– Size; 20mm×16mm×2mm – VHF 7ch, UHF13~62ch– Power Consumption; <150mW– Output; MPEG2 TS
• Product sample will be shipped from Dec. 2003.
Sep 24
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Front End Module will be installed in all kinds of Portable Devices
Thickness< 1.4mm
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Conclusions
• ISDB-T showed the best results in Brazil’s comparison tests. The similar results were obtained in Singapore and Hong Kong trials.
• The system flexibility and the reliable mobile reception of ISDB-T make broadcasters more competent in the new wireless world.
• ISDB-T is the most flexible system of the three DTTV standards. And so it will adapt to different circumstances of all countries.
• The sales of Digital TV receivers reached more than two millionsand will increase rapidly around 2006 in Japan.
• Digital TV promotion is now operated jointly by governments and private sectors.
• The analog channel re-arrangement is first big challenge.• All of consumer-manufacturers announced the sale of new TV
sets.• Developments of ISDB-T one-segment receiver were
announced recently in Japan. Mobile TV will be launched in the end of 2005.
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Thank you Thank you for your attention!for your attention!