ARIB Standardization Activities on Multimedia Broadcasting for Mobile Terminals

1
ARIB Standardization Activities on Multimedia
Broadcasting for Mobile Terminals
Document No GSC16-GRSC9-03
Source ARIB
Contact Tomoyuki Ohya (mmbi, Inc.) ohya_at_mmbi.co.jp
GSC Session GRSC9
Agenda Item 4.3

• Tomoyuki Ohya
• ARIB (mmbi, Inc.)

2
Highlight of Current Activities(1)

• Digital TV Switchover in Japan
• Analog terrestrial TV broadcasting terminated on
  24th July, 2011, except for three North-Eastern
  prefectures (to be terminated by 31st March,
  2012)
• Using the vacant VHF spectrum, ISDB-T based
  multimedia broadcasting for mobile terminals will
  be launched
• VHF-L (90-108MHz) Local Block are (ISDB-Tsb
  ARIB STD-B29)
• VHF-H (207.5-222MHz) Nationwide area (ISDB-Tmm)
• Standards Completed
• Mobile Multimedia Broadcasting System WG in
  ARIB has been working on establishing related
  standards since November, 2009
• Nine ARIB STDs (B10, B25 Part4, B32, B38, B45
  Part 2, B46, B53) are either newly created or
  modified to support ISDB-Tmm (published in March
  2011)

3
Highlight of Current Activities(2)

• Operational Guidelines Completed
• ARIB TR-B33 Operational Guidelines for
  Terrestrial Mobile Multimedia Broadcasting by
  Transmission System Based on Connected Segments
  was published in March, 2011
• The operational guidelines document is maintained
  by ISDB-T Multimedia Forum
• Harmonization with ITU-R standardization
• ISDB-T based multimedia broadcasting is
  standardized in ITU-R BT-1833 Broadcasting of
  multimedia and data applications for mobile
  reception by handheld receivers, as Multimedia
  System F
• File based broadcasting defined in ARIB STD-B45
  Part 2 is also standardized as ITU-R BT-1888
  Basic elements of file-based broadcasting
  systems

4
Strategic Direction

• Commercial Service in Japan
• ISDB-T based VHF-H multimedia broadcasting
  (Mobacas) to be launched in April, 2012
• Activities towards the global harmonization
• Physical layer parameters for 6/7/8 MHz bandwidth
  were already defined in ARIB STD-B46 and ITU-R
  BT.1306
• New recommendations on the emission system and
  the planning criteria for terrestrial multimedia
  broadcasting for mobile reception using handheld
  receivers in the VHF/UHF band are under
  discussion in ITU-R (BT.ETMM and BT.ETMMPLAN)

5
Challenges

• Coexistence / Competition with other visual
  contents services such as
• One-seg services
• On-demand video services over communications
  channels
• Key success factors for mobile DTV
• Providing open technical information to the
  industry for rapid terminal penetration
• Preparation for wide radio coverage area
• Collaboration of communications and broadcasting
  services
• Reliable reception of high quality programs is
  possible using communications channels to
  supplement data which cannot be received over
  broadcasting channels
• New broadcasting programs collaborating with
  bi-directional services, such as social
  networking services

6
Next Steps / Actions

• Continue to contribute to establishing /
  improving standard documents in ARIB and ITU-R
• Expecting commercial service launch in April,
  2012

7
Supplementary Slides
8
ISDB-Tmm Services

• ISDB-Tmm system seamlessly provides both Storage
  type (download) services and Real time
  (streaming) services in a single allocated
  bandwidth.

Storage type Services (File Download)
Real time Services (Streaming)
Various types of contents can be automatically
downloaded into storage on mobile handsets.
Viewers can watch live videos just like
conventional mobile television in much better
quality.
Enjoy live programs such as sports, news, and
music.
Live Concerts
Can be used anytime anywhere
Movie/Drama
Newspapers
Audio file
Live News
Novels
Various types of contents
E-Magazine
Sports game
Automatically stored to your mobile handsets
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Technical specifications of ISDB-Tmm
ISDB-Tmm (Ref.) ISDB-T(Digital Terrestrial TV, Oneseg)
Spectrum Usage
Bandwidth / segment (Bws) 6000 / 14 428.57 kHz, 7000/14 500 kHz, 8000/14 571.428 kHz 6000 / 14 428.57 kHz, 7000/14 500 kHz, 8000/14 571.428 kHz
Number of radiated carriers / segment 108 (Mode 1), 216 (Mode 2), 432 (Mode 3) 108 (Mode 1), 216 (Mode 2), 432 (Mode 3)
Modulation OFDM (DQPSK, QPSK, 16QAM, 64QAM) OFDM (DQPSK, QPSK, 16QAM, 64QAM)
Forward Error Correction Outer Code Reed Solomon (204, 188) Inner Code Convolutional Code (7/8, 5/6, 3/4, 2/3, 1/2) Outer Code Reed Solomon (204, 188) Inner Code Convolutional Code (7/8, 5/6, 3/4, 2/3, 1/2)
Hierarchical Transmission Possible Possible
SFN Operation Possible Possible
Any combination of 13-seg/1-seg format
6/7/8MHz (13 segments)
6/7/8MHz








Oneseg Partial Reception
Partial Reception
1-seg format ISDB-TSB ARIB STD-B29 / ITU-R BT1833
13-seg format ISDB-T ARIB STD-B31 / ITU-R BT1833
HDTV
e.g. 2-layer Hierarchical Reception (including
partial reception)
6MHz bandwidth is specified in ARIB
STD-B31/B29 6/7/8MHz bandwidth is specified
in ITU-R BT-1306
6MHz bandwidth is specified in ARIB STD-B31
6/7/8MHz bandwidth is specified in ITU-R BT-1306
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Technical specifications of ISDB-Tmm (cont.)
ISDB-Tmm (Ref.) ISDB-T(Digital Terrestrial TV, Oneseg)
Active symbol duration 6MHz , 7MHz, 8MHz 252 µs, 216 µs, 189µs (Mode 1) 504 µs, 432 µs, 378µs (Mode 2) 1008 µs, 864 µs, 756µs (Mode 3) 6MHz , 7MHz, 8MHz 252 µs, 216 µs, 189µs (Mode 1) 504 µs, 432 µs, 378µs (Mode 2) 1008 µs, 864 µs, 756µs (Mode 3)
Carrier spacing (Cs) 6MHz , 7MHz, 8MHz Bws/108 3.968kHz, 4.629kHz, 5.271kHz (Mode 1) Bws/216 1.984kHz, 2.361kHz, 2.645kHz (Mode 2) Bws/432 0.992kHz, 1.157kHz, 1.322kHz (Mode 3) 6MHz , 7MHz, 8MHz Bws/108 3.968kHz, 4.629kHz, 5.271kHz (Mode 1) Bws/216 1.984kHz, 2.361kHz, 2.645kHz (Mode 2) Bws/432 0.992kHz, 1.157kHz, 1.322kHz (Mode 3)
Guard interval duration 1/4, 1/8, 1/16, 1/32 of active symbol duration 63, 31.5, 15.75, 7.875 µs (Mode 1 6MHz) 126, 63, 31.5, 15.75 µs (Mode 2 6MHz) 252, 126, 63, 31.5 µs (Mode 3 6MHz) 1/4, 1/8, 1/16, 1/32 of active symbol duration 63, 31.5, 15.75, 7.875 µs (Mode 1 6MHz) 126, 63, 31.5, 15.75 µs (Mode 2 6MHz) 252, 126, 63, 31.5 µs (Mode 3 6MHz)
Transmission frame duration 204 OFDM symbols 204 OFDM symbols
Inner interleaving Intra and inter segments interleaving (frequency interleaving). Symbol wise convolutional interleaving 0, 380, 760, 1520 symbols (time interleaving) Intra and inter segments interleaving (frequency interleaving). Symbol wise convolutional interleaving 0, 380, 760, 1520 symbols (time interleaving)
Outer interleaving Byte wise convolutional interleaving, I 12 Byte wise convolutional interleaving, I 12
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Licensed Spectrum for Multimedia Broadcasting in
Japan

• After reallocation of the licensed spectrum for
  analog terrestrial TV , 207.5-222MHz band
  (14.5MHz) will allocate for mobile multimedia
  broadcasting.

Reallocation of Licensed Spectrum
222MHz
90MHz
108MHz
170MHz
Before Reallocation (2012.7)
Analog TV 13ch
Analog TV 412ch
90MHz
108MHz
170MHz
222MHz
207.5MHz
202.5MHz
Guard band
Multimedia Broadcasting (V-Low)
Nation wide Multimedia Broadcasting (V-High)
Public Safety and Homeland Security Band
After Reallocation (2012.7)
Total33 segments
13 segments Type
13 segments Type
1 segment type 7 slots total
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Multimedia Broadcasting System Model
Streaming Playout System
ISDB-Tmm
Multiplexer
-Contents
Meta-data System
Programming/Contents Management System
Broadcast Network
File Delivery System
Contents Export
3G/LTE

• License/Key Information
• Contents Complement

CAS/DRM System
Content Complement Server
Broadcast System
Communication Network
Communication System
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ISDB-Tmm Protocol Stack
Real
-
time service
File download service
Contents for
Contents for
PSI/SI
ECG/EPG
metadata
real
-
time service
file download service
FLUTE / AL
-
FEC
PES
Section
UDP / IP / ROHC
ULE
MPEG
-
2 TS
ISDB
-
Tmm
physical layer
SI Service information
UDP User datagram protocol
PSI Program specific information
IP Internet protocol
EPG Electronic program guide
ROHC Robust header compression
ECG Electronic contents guide
ULE Unidirectional lightweight encapsulation
PES Packetized elementary stream
TS Transport stream
FLUTE File delivery over unidirectional transport
AL
-
FEC Application layer

forward error correction
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ISDB-Tmm Technical Features
(1) High Quality Media Coding
ITU-T H.264 / MPEG-4 AVC MPEG HE-AAC, MPEG Surround
(2) Advanced Inter-media Interaction
Interaction between communications and broadcasting
(3) High Efficiency File Delivery Protocol
Efficient File Transmission for Mobile Environments with AL-FEC Lost data in broadcast channel can be compensated with communication channels
(4) Advanced Power Saving Mechanism
Partial segment reception is supported Intermittent reception for file download is supported by using advanced meta-data
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High Quality Media Coding (Visual)
Real Time Services (Streaming) Advanced
Profile/Level Support. Higher resolution
video. Storage Type Services (Download) Support
of High-Definition video.
Real Time Services (Streaming)
Storage Type Services (Download)

• Codec
• Profile
• Level
• Resolution
• Frame Rate

ITU-T H.264/MPEG-4 AVC Main 3 720480(VGA) 3
0 frame/sec
ITU-T H.264/MPEG-4 AVC High 4.2 19201080(1080
HD) 60 frame/sec

• Codec
• Profile
• Level
• Resolution
• Frame Rate

Ref. One Seg (TR-B14)
CodecITU-T H.264
ProfileBaseline
Level1.2
Resolution320x240 (QVGA)
Frame Rate15 frame/sec
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High Quality Media Coding (Audio)

• High efficiency stereo audio broadcasting by
  using HE-AACv2
• Home theater like multi channel audio support by
  MPEG Surround

ISDB-Tmm Real Time Services (Streaming)

• Codec
• Audio Channel

MPEG HE-AACv2 Surround Monaural / Stereo /
5.1ch
Stereo
Monaural
Ref. One Seg (TR-B14)
CodecAACSBR (eq. HE-AAC v1)
Audio Channel 2 (maximum)
Surround
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Advanced Meta-data Usage

• ISDB-Tmm introduces advanced meta-data for both
  realtime broadcasting (EPG Electric Program
  Guide) and storage type broadcasting (ECG
  Electric Contents Guide)
• Rich program description is possible by the
  advanced meta-data

• Flexible charging mechanism is provided by
  meta-data licensing information, such as
• Group pricing (for series of contents)
• Discount coupon (for promotion)
• Rich description of the content license is
  included in the meta-data
• Meta-data is transmit efficiently by AL-FEC
  protection

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Advanced Inter-media Interaction

• Support of flexible inter media interaction among
  Web/E-mail/Real Time Services(Streaming)/Storage
  Type Services(Download)

Web Browser
Streaming
media DTVTR-X.jp?p_channel0001
service_id0001 stime2005-04-1T100
000 title82C4B782C6
provider_name8B9F8B
8B8ED296BC
E-Mail
Download
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High Efficiency File Delivery Protocol

• High efficiency file broadcasting protocol with
  application layer forward error correction
  (AL-FEC)

ISDB-Tmm
A
A-1
A
A-2
A
A-3
DSM-CC Carousel
AL-FEC
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File Delivery Procedures
Contents (Arbitrary Length)

File Segmentation

FEC Packet
FEC Packet Generation

FLUTE (File Delivery Protocol)

LCT Header, FEC Payload ID
UDP/IP
UDP/IP Header
ROHC (Header Compression)

ULE Header
CRC32
ULE (Encapsulation)

TS Header
IP over MPEG-2 (TS Packet)

15
188 Byte
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Content Complementation by Communications Channel

• When the content delivered over the broadcast
  channel is incomplete, the missing data can be
  compensate using communications channel.
• The terminal issues HTTP request, which is
  commonly used in communications network and has
  higher flexibilities.
• Complementation schedule is either
• At the time user uses the content (manual
  compensation) or
• Controlled by meta-data associated with the
  content (automatic compensation)

Data Complementation Request
Data Broadcast
Communications
Complementary Data




Broadcast
Communications
Receive Store
Missing Data



Complementation



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Advanced Power Saving

• Small amount of data Narrow-band low power
  consumption with one segment receiver

• Large amount of data High-speed immediate
  receiving with full segment receiver

13 segment
1 segment
Frequency
Frequency
Contents A
Contents B
Contents C
Contents D
time
time
Contents E
Contents F

• Minimum wake-up scheduling for power saving with
  transmission control metadata

Receiver Wakeup Scheduling
Transmission Control Meta-data
EPG/ECG Meta-data (Program)
Wake-up

• Detailed control data for file retrieval, such
  as, broadcasting schedule, number of repetition,
  etc.

Contents (1st transmission)
Sleep
If missing 1st transmission
Contents (2nd transmission)
time
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Contents Recommendation

• Contents recommendation is a key technology for
  users to efficiently navigate through large
  number of contents
• Recommendation information is provided through
  communications channel
• User terminals automatically schedule download on
  broadcast channel

User Attributes
(1) Contents usage information
Recommend Engine
(2) Recommend Information Generation
(3) Receiving Recommend Information (list of
contents IDs)
(4) Storage of recommended contents, or
highlighted display of recommended contents on ECG
Recommend Server
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Time-table of ISDB-Tmm Technical Specifications
Today
2006
2007
2008
2009
2010
2011
2012
? Sin
? Call for Proposal
? License Granted for System Operator (ISDB-Tmm
was adapted)
? MIC Committee Report
? Call for System Proposal
? Technical Requirements (MediaFLO and ISDB-Tmm)
? Analog TV Shutdown
Ministry of Internal Affairs and Communications
Informal Gathering for Discussion on Multimedia
Broadcasting
Broadcasting System Committee
ARIB
? Multimedia Broadcasting Working Group
? STD, TR
ISDB-T Multimedia Forum
? Release
Technical Report Working Group
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ISDB-T Multimedia Forum
ISDB-T Multimedia Forum is an organization
dedicated to researching new broadcasting
services that utilize the ISDB-T format, in order
to contribute to the advancement of digital
broadcasting in Japan. The forum also promotes
the benefits of mobile multimedia broadcasting,
which will continue to use the available VHF
frequency band after analog broadcasting has
ended.
Steering Board Members
Steering Board
Fuji Television Network, Inc., NIPPON TELEVISION NETWORK CORPORATION, TOKYO BROADCASTING SYSTEM HOLDINGS, INC., ITOCHU Corporation, Sumitomo Corporation, SKY Perfect JSAT Corporation, Multimedia Broadcasting, INC, DENTSU INC., TV Asahi Corporation
Core Council
Content Broadcasting Committee
Broadcasting Infrastructure Committee

• Drafting operational guidelines document
• Information exchange on broadcasting
  infrastructure
• Discussions on other issues related to
  broadcasting infrastructure

• Discussions on preparation for content
  broadcasting business
• Information exchange among potential content
  broadcasters
• Discussions on other issues related to content
  broadcasting business

Operational Guidelines WG
91 members as of 31 January 2011
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Operational Guidelines for ISDB-Tmm
Volume Title Summary
0 Multimedia Broadcasting Operational Guidelines Explanation for multimedia broadcasting services and technical outlines.
1 Provisions for Download operations Guideline for update receiver software through broadcasting signal (SDTT)
2 Function Specifications for Receiver Units Description for the functionalities of the receivers.
3 Provisions for Multimedia Coding Multimedia coding guideline for data broadcasting, subtitles, letter on screen and file casting.
4 Provisions for PSI/SI Operations Necessary PSI for receiver station tuning and guideline for SI to get program information
5 Provisions for Conditional Access System(CAS) Operations and Specifications on Receiver Units Live streaming service Conditional receive File casting service Conditional playback
6 Not used -
7 Provisions for Carrier Operations Guideline for encoding Video and Audio and Multiplexing for transmission
8 Provisions for Contents Protection Guideline for contents protection (receiver inside protect and signal output protect)
9 Not used -
10 Provisions for Meta Data Operations Guideline for EPG/ECG meta data that receiver display program table
11 Provisions for Storage Type Service Operations Guideline for data transport of file downloading.
12 Provisions for Storage Contents Supplementation Operations Guide for a compensation of storage contents via communications channel.
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Related Standards

• ITU-R BT-1306 Error correction, data framing,
  modulation and emission methods for digital
  terrestrial television broadcasting
• ITU-R BT-1833 Broadcasting of multimedia and
  data applications for mobile reception by
  handheld receivers
• ITU-R BT-1888 Basic elements of file-based
  broadcasting systems
• ARIB STD-B10 Service Information for Digital
  Broadcasting System
• ARIB STD-B25 Part 4 Conditional Access System
  Specifications for Digital Broadcasting
• ARIB STD-B32 Video Coding, Audio Coding and
  Multiplexing Specifications for Digital
  Broadcasting
• ARIB STD-B38 Coding, Transmission and Storage
  Control for Server Type Broadcasting
• ARIB STD-B45 Part 2 Contents Download for
  Digital Broadcasting System
• ARIB STD-B46 Transmission System Based on
  Connecting Segments for Terrestrial Mobile
  Multimedia Broadcasting
• ARIB STD-B53 Receiver for Multimedia
  Broadcasting
• ARIB TR-B33 Operational Guidelines for
  Terrestrial Mobile Multimedia Broadcasting by
  Transmission System Based on Connected Segments