ARIB Standardization Activities on Multimedia Broadcasting for Mobile

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					                                   Document No:   GSC16-GRSC9-03
                                   Source:        ARIB

                                   Contact:       Tomoyuki Ohya (mmbi, Inc.) ohya@mmbi.co.jp

                                   GSC Session:   GRSC9

                                   Agenda Item:   4.3




       ARIB Standardization Activities on
         Multimedia Broadcasting for
               Mobile Terminals

                                Tomoyuki Ohya
                               ARIB (mmbi, Inc.)

Halifax, 31 Oct – 3 Nov 2011       ICT Accessibility For All
                                                                          GSC16-GRSC9-03


          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)


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          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 ”


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                               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])

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                                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

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




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                     Supplementary Slides




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                                                                                                         GSC16-GRSC9-03
                                         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
                                                                        Real time Services (Streaming)
     Download)
  ■ Various types of contents can be                               ■ Viewers can watch live videos just like
  automatically downloaded into storage on                         conventional mobile television in much better
  mobile handsets.                                                 quality.

                                                                                  Live Concerts   Enjoy live programs
                Movie/Drama               Can be used                                             such as sports, news,
                                          anytime                                                 and music.
                                          anywhere
   Newspapers
                  Audio file                                                                           Live News
                                Novels

 Various types
  of contents          E-Magazine




                                                                              Sports game

    Automatically stored to your mobile handsets

Halifax, 31 Oct – 3 Nov 2011                      ICT Accessibility For All
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Technical specifications of ISDB-Tmm                                                                                    GSC16-GRSC9-03




                                                ISDB-Tmm                                        (Ref.) ISDB-T(Digital Terrestrial TV,
                                                                                                              Oneseg)
  Spectrum Usage                Any combination of 13-seg/1-seg format                                 6/7/8MHz (13 segments)
                                             6/7/8MHz

                                                                                               Oneseg
                                                                                               Partial
                               Partial
                                          13-seg format                1-seg format           Reception                       HDTV
                              Reception
                                              ISDB-T                      ISDB-TSB                        e.g. 2-layer Hierarchical Reception
                                                                                                               (including partial reception)
                                    ARIB STD-B31 / ITU-R BT1833 ARIB STD-B29 / ITU-R BT1833


                               †6MHz bandwidth is specified in ARIB STD-B31/B29               †6MHz bandwidth is specified in ARIB STD-B31
                               † † 6/7/8MHz bandwidth is specified in ITU-R BT-1306           † † 6/7/8MHz bandwidth is specified in ITU-R BT-1306

  Bandwidth / segment                             6000 / 14 = 428.57 kHz, 7000/14 = 500 kHz, 8000/14 = 571.428 kHz
  (Bws)
  Number of radiated                                           108 (Mode 1), 216 (Mode 2), 432 (Mode 3)
  carriers / segment
  Modulation                                                     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)
  Hierarchical Transmission                                                       Possible
  SFN Operation                                                                   Possible


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Technical specifications of ISDB-Tmm (cont.)                                                     GSC16-GRSC9-03




                                          ISDB-Tmm                             (Ref.) ISDB-T(Digital Terrestrial TV,
                                                                                            Oneseg)
  Active symbol                                       6MHz , 7MHz, 8MHz
  duration                                                        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)
  Guard interval                                1/4, 1/8, 1/16, 1/32 of active symbol duration
  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                                          204 OFDM symbols
  duration
  Inner 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


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                                                                                                                       GSC16-GRSC9-03
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
                                Analog TV                                         Analog TV
    (~2012.7)
                                 1~3ch                                             4~12ch

                      90MHz                  108MHz   170MHz                         202.5MHz               207.5MHz           222MHz




                                                                                              Guard band
                                Multimedia                 Public Safety and                               Nation wide Multimedia
 After Reallocation Broadcasting (V-Low)                 Homeland Security Band                             Broadcasting (V-High)
    (2012.7~)


                                                                                                            Total:33 segments
                      13 segments Type                                                        13 segments Type
                                                  1 segment type: 7 slots total




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Multimedia Broadcasting System Model                                                                  GSC16-GRSC9-03




                                          Streaming Playout System

                                                        Multiplexer
                                                                                    ISDB-Tmm

                       Meta-data System                                                   -Contents
Programming/Contents
  Management System

                                                                         Broadcast Network



                          File Delivery System
                                                                                                      Contents
                                                                               3G/LTE                  Export

                                                                                        -License/Key Information
                                            CAS/DRM System                              -Contents Complement


                                 Content Complement Server                                              Broadcast System
                                                                  Communication Network
                                                                                                        Communication System




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  ISDB-Tmm Protocol Stack                                                                            GSC16-GRSC9-03




                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

          UDP: User datagram protocol                           SI: Service information
          IP: Internet protocol                                 PSI: Program specific information
                                                                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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                                                                            GSC16-GRSC9-03

ISDB-Tmm Technical Features

 (1) High Quality Media Coding                     (2) Advanced Inter-media Interaction
 •ITU-T H.264 / MPEG-4 AVC                         •Interaction between
 •MPEG HE-AAC, MPEG Surround                       communications and broadcasting




(3) High Efficiency File Delivery                  (4) Advanced Power Saving
Protocol                                           Mechanism
•Efficient File Transmission for Mobile            •Partial segment reception is
Environments with AL-FEC                           supported
•Lost data in broadcast channel can be             •Intermittent reception for file
compensated with communication                     download is supported by using
channels                                           advanced meta-data

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                                                                                           GSC16-GRSC9-03
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     :ITU-T H.264/MPEG-4 AVC                 Codec      :ITU-T H.264/MPEG-4 AVC
         Profile :Main                                     Profile    :High
         Level     :3                                      Level      :4.2
         Resolution:720×480(VGA+)                          Resolution :1920×1080(1080HD)
         Frame Rate:30 frame/sec                           Frame Rate :60 frame/sec

                                                                      Ref.: One Seg (TR-B14)

                                                                      Codec:ITU-T H.264
                        QVGA
                                                                      Profile:Baseline

                                                                      Level:1.2
                               VGA+
                                                                      Resolution:320x240 (QVGA)

                                                                      Frame Rate:15 frame/sec

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High Quality Media Coding (Audio)                                                     GSC16-GRSC9-03




     •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        :MPEG HE-AACv2
                                                         Audio Channel Surround
                                                                          :Monaural / Stereo / 5.1ch




           Stereo              Monaural




         Ref.: One Seg (TR-B14)

         Codec:AAC+SBR (eq. HE-AAC
         v1)
                                                                           Surround
         Audio Channel: 2 (maximum)

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                                                                     GSC16-GRSC9-03
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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                                                                       GSC16-GRSC9-03
Advanced Inter-media Interaction
     • Support of flexible inter media interaction among Web/E-mail/Real Time
       Services(Streaming)/Storage Type Services(Download)

                Web Browser    media: DTVTR-X.jp?p_channel=0001
                                      &service_id=0001
                                                                  Streaming
                                      &stime=2005-04-1T10:00:00
                                      &title=%82%C4%B7%82%C6
                                      &provider_name=%8B%9F%8B
                                             %8B%8E%D2%96%BC




                   E-Mail
                                                                  Download




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                                                                                                               GSC16-GRSC9-03
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                                      1
                                                                                                                A-3
                                                      0.9

                                                      0.8   ・10 MByte File Transmission
        DSM-CC Carousel                                     ・1,000 byte/packet                                 AL-FEC
                                                      0.7
                                                            ・FEC rate = 1/2 (AL-FEC)
                               Receive Success Rate




                                                      0.6   ・Repetition=2 (Carousel)
                                                      0.5

                                                      0.4

                                                      0.3              AL-FEC
                                                      0.2

                                                      0.1

                                                       0
                                                        0       100
                                                               10          200
                                                                           20      300
                                                                                   30      400
                                                                                           40     500
                                                                                                  50    600
                                                                                                        60

                                                                         Packet Error Rate (%)
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File Delivery Procedures                                                                        GSC16-GRSC9-03



             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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                                                                                                                 20
Content Complementation by Communications                                               GSC16-GRSC9-03
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 Broadcast                Data Complementation Request
                                                              Communications
                     ・・・・・・            ・・・・・・              Complementary Data
                                                            ・・・・・・             ・・・・・・
                          Broadcast
                                                              Communications
                                      Receive & Store
                Missing Data
                                  ・・     ・・・・・・       ・・・・・・


                                                                      Complementation




                                 ・・     ・・・・・・       ・・・・・・
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Advanced Power Saving                                                                                    GSC16-GRSC9-03


     •Large amount of data: High-speed                        •Small amount of data: Narrow-band
     immediate receiving with full                            low power consumption with one
     segment receiver                                         segment receiver
                          13 segment
                                                                                      1 segment

                                       Frequency
                                                                                                       Frequency
                                           Contents A
                                           Contents B
                                           Contents C
                                           Contents D
           time                            Contents E                       time
                                           Contents F




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

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

                                                                                                                       Wake-up
                                             •Detailed control data                   Contents (1st transmission)
                                             for file retrieval, such as,                                              Sleep
                                             broadcasting schedule,
                                             number of repetition,                    Contents (2nd transmission) If missing 1
                                                                                                                               st

                                             etc.                                                                 transmission

                                                                                   time

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                                                                                          GSC16-GRSC9-03
  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,
                Recommend Server                                         or highlighted display of
                                                                         recommended contents on ECG
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                                                                                                               GSC16-GRSC9-03

Time-table of ISDB-Tmm Technical Specifications

                                                                                                      Today
  2006              2007                    2008                      2009               2010                  2011         2012

  △                    △                            △                        △                  △               △            △
  Call for             MIC                          Call for System          Technical          License         Analog TV   Sin
  Proposal             Committee                    Proposal                 Requirements       Granted for     Shutdown
                       Report                                                (MediaFLO and      System
                                                                             ISDB-Tmm)          Operator
                                                                                                (ISDB-Tmm
                                                                                                was
Ministry of Internal           Informal Gathering     Broadcasting                              adapted)
    Affairs and                for Discussion on      System Committee
Communications                 Multimedia
                               Broadcasting
                                                                ARIB
                                                                        △                                △
                                                                   Multimedia                          STD, TR
                                                                  Broadcasting
                                                                  Working Group


             ISDB-T Multimedia Forum                                                                 △
                                                                                  Technical Report
                                                                                   Working Group     Release




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                                                                                   GSC16-GRSC9-03
 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.,
                                                                                            Core
  NIPPON TELEVISION
                                                                                           Council
  NETWORK CORPORATION,
  TOKYO BROADCASTING
                                          Content                       Broadcasting
  SYSTEM HOLDINGS, INC.,                Broadcasting                   Infrastructure
  ITOCHU Corporation,                    Committee                       Committee
  Sumitomo Corporation,
  SKY Perfect JSAT Corporation,    • Discussions on preparation for    • Drafting operational guidelines
                                     content broadcasting business       document
  Multimedia Broadcasting, INC,    • Information exchange among        • Information exchange on
  DENTSU INC.,                       potential content broadcasters      broadcasting infrastructure
                                                                       • Discussions on other issues related to
  TV Asahi Corporation             • Discussions on other issues
                                                                         broadcasting infrastructure
                                     related to content broadcasting
                                     business
                                                                        Operational
91 members as of 31 January 2011                                       Guidelines WG

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Operational Guidelines for ISDB-Tmm                                                                                        GSC16-GRSC9-03


     Volume     Title                                  Summary
         0      Multimedia Broadcasting Operational    Explanation for multimedia broadcasting services and technical outlines.
                Guidelines

         1      Provisions for Download operations     Guideline for update receiver software through broadcasting signal (SDTT)


         2      Function Specifications for Receiver   Description for the functionalities of the receivers.
                Units

         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      Live streaming service: Conditional receive
                System(CAS) Operations and             File casting service: Conditional playback
                Specifications on Receiver Units

         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    Guideline for data transport of file downloading.
                Operations

        12      Provisions for Storage Contents        Guide for a compensation of storage contents via communications channel.
                Supplementation Operations

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Related Standards                                                            GSC16-GRSC9-03


   •   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”


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