1. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All ARIB Standardization Activities on Multimedia Broadcasting for Mobile Terminals Tomoyuki Ohya ARIB (mmbi, Inc.) Document No: GSC16-GRSC9-03 Source: ARIB Contact: Tomoyuki Ohya (mmbi, Inc.) ohya@mmbi.co.jp GSC Session: GRSC9 Agenda Item: 4.3

2. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 2 Highlight of Current Activities(1) Digital TV Switchover in Japan –Analog terrestrial TV broadcasting terminated on 24 th July, 2011, except for three North-Eastern prefectures (to be terminated by 31 st 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. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 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. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 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. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 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. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 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. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 7 Supplementary Slides

8. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 Storage type Services (File Download) Live Concerts Live News Sports game Movie/Drama Newspapers Audio file Novels E-Magazine Real time Services (Streaming) Enjoy live programs such as sports, news, and music. Various types of contents Various types of contents ■ Viewers can watch live videos just like conventional mobile television in much better quality. ■ Various types of contents can be automatically downloaded into storage on mobile handsets. Automatically stored to your mobile handsets Can be used anytime anywhere Can be used anytime anywhere ISDB-Tmm system seamlessly provides both Storage type (download) services and Real time (streaming) services in a single allocated bandwidth. ISDB-Tmm Services 8

9. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 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 Number of radiated carriers / segment 108 (Mode 1), 216 (Mode 2), 432 (Mode 3) ModulationOFDM (DQPSK, QPSK, 16QAM, 64QAM) Forward Error CorrectionOuter Code: Reed Solomon (204, 188) Inner Code: Convolutional Code (7/8, 5/6, 3/4, 2/3, 1/2) Hierarchical TransmissionPossible SFN OperationPossible 13-seg format ISDB-T ARIB STD-B31 / ITU-R BT1833 1-seg format ISDB-T SB ARIB STD-B29 / ITU-R BT1833 Any combination of 13-seg/1-seg format 6/7/8MHz (13 segments) Oneseg Partial Reception HDTV e.g. 2-layer Hierarchical Reception (including partial reception) †6MHz bandwidth is specified in ARIB STD-B31 † † 6/7/8MHz bandwidth is specified in ITU-R BT-1306 †6MHz bandwidth is specified in ARIB STD-B31/B29 † † 6/7/8MHz bandwidth is specified in ITU-R BT-1306 6/7/8MHz Partial Reception 9

10. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 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) 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 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) Transmission frame duration 204 OFDM symbols Inner interleavingIntra and inter segments interleaving (frequency interleaving). Symbol wise convolutional interleaving 0, 380, 760, 1520 symbols (time interleaving) Outer interleavingByte wise convolutional interleaving, I = 12 10

11. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All 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. 1 segment type: 7 slots total Total:33 segments 13 segments Type Before Reallocation (～2012.7) After Reallocation (2012.7～) Analog TV １～3ch Analog TV ４～12ch 90MHz108MHz170MHz 222MHz Multimedia Broadcasting (V-Low) 90MHz108MHz170MHz222MHz207.5MHz Public Safety and Homeland Security Band Nation wide Multimedia Broadcasting (V-High) 202.5MHz Guard band Reallocation of Licensed Spectrum 11

12. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 Multimedia Broadcasting System Model Programming/Contents Management System Content Complement Server Broadcast System Communication System Meta-data System CAS/DRM System File Delivery System Streaming Playout System Multiplexer Broadcast Network Communication Network -Contents -License/Key Information -Contents Complement Contents Export 12 ISDB-Tmm 3G/LTE

13. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 ISDB-Tmm Protocol Stack Contents for real-time service PSI/SI Contents for file download service ECG/EPGmetadata PESSection FLUTE / AL-FEC UDP / IP / ROHC ULE MPEG-2 TS ISDB-Tmmphysical layer Real-time service File download service SI: Service information PSI: Program specific information EPG: Electronic program guide ECG: Electronic contents guide PES: Packetized elementary stream FLUTE: File delivery over unidirectional transport AL-FEC: Application layer–forward error correction UDP: User datagram protocol IP: Internet protocol ROHC: Robust header compression ULE: Unidirectional lightweight encapsulation TS: Transport stream 13

14. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 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 14

15. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 Real Time Services (Streaming) Real Time Services (Streaming): Advanced Profile/Level Support. Higher resolution video. Storage Type Services (Download): Support of High-Definition video. Codec Profile Level Resolution Frame Rate ： ITU-T H.264/MPEG-4 AVC ： Main ： 3 ： 720×480(VGA+) ： 30 frame/sec High Quality Media Coding (Visual) Ref.: One Seg (TR-B14) Codec ： ITU-T H.264 Profile ： Baseline Level ： 1.2 Resolution ： 320x240 (QVGA) Frame Rate ： 15 frame/sec Storage Type Services (Download) ： ITU-T H.264/MPEG-4 AVC ： High ： 4.2 ： 1920×1080(1080HD) ： 60 frame/sec Codec Profile Level Resolution Frame Rate 15 QVGA VGA+

16. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 ISDB － Tmm Real Time Services (Streaming) High efficiency stereo audio broadcasting by using HE-AACv2 Home theater like multi channel audio support by MPEG Surround Codec Audio Channel ： MPEG HE-AACv2 Surround ： Monaural / Stereo / 5.1ch StereoMonaural Surround High Quality Media Coding (Audio) Ref.: One Seg (TR-B14) Codec ： AAC+SBR (eq. HE- AAC v1) Audio Channel ： 2 (maximum) 16

17. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 Advanced Meta-data Usage 17 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

18. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 Support of flexible inter media interaction among Web/E-mail/Real Time Services(Streaming)/Storage Type Services(Download) Web Browser E-Mail Streaming Download Advanced Inter-media Interaction media: DTVTR-X.jp?p_channel=0001 &service_id=0001 &stime=2005-04-1T10:00:00 &title=%82%C4%B7%82%C6 &provider_name=%8B%9F%8B %8B%8E%D2%96%BC 18

19. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 102030405060 Packet Error Rate (%) Receive Success Rate AL-FEC ・ 10 MByte File Transmission ・ 1,000 byte/packet ・ FEC rate = 1/2 (AL-FEC) ・ Repetition=2 (Carousel) High efficiency file broadcasting protocol with application layer forward error correction (AL-FEC) High Efficiency File Delivery Protocol ISDB-Tmm AL-FEC DSM-CC Carousel A A A A-1 A-2 A-3 19

20. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 File Delivery Procedures 20 15 ・・・ FEC Packet ・・・ UDP/IP Header CRC32 ULE Header ・・・ TS Header 188 Byte Contents (Arbitrary Length) File Segmentation FEC Packet Generation LCT Header, FEC Payload ID FLUTE (File Delivery Protocol) UDP/IP ROHC (Header Compression) ULE (Encapsulation) IP over MPEG-2 (TS Packet)

21. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 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 Complementary Data ・・・・・・ Data Broadcast Receive & Store Complementation Broadcast Communications Missing Data ・・・・・・ ・・ ・・・・・・ ・・ Content Complementation by Communications Channel 21

22. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 13 segment 1 segment Frequency time Large amount of data: High-speed immediate receiving with full segment receiver Small amount of data: Narrow-band low power consumption with one segment receiver time Contents A Contents B Contents C Contents D Contents E Contents F Minimum wake-up scheduling for power saving with transmission control metadata EPG/ECG Meta-data (Program) Transmission Control Meta-data Detailed control data for file retrieval, such as, broadcasting schedule, number of repetition, etc. time Contents (1 st transmission) Wake-up Sleep Contents (2 nd transmission) If missing 1 st transmission Receiver Wakeup Scheduling Advanced Power Saving 22

23. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 Contents Recommendation Recommend Engine User Attributes (1) Contents usage information (3) Receiving Recommend Information (list of contents IDs) (4) Storage of recommended contents, or highlighted display of recommended contents on ECG Recommend Server (2) Recommend Information Generation 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 23

24. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 △ Call for Proposal 2006200720082009201020112012 △ Sin △ License Granted for System Operator (ISDB-Tmm was adapted) Informal Gathering for Discussion on Multimedia Broadcasting △ MIC Committee Report △ Call for System Proposal △ Technical Requirements (MediaFLO and ISDB-Tmm) Broadcasting System Committee △ Analog TV Shutdown Time-table of ISDB-Tmm Technical Specifications △ Multimedia Broadcasting Working Group ARIB Ministry of Internal Affairs and Communications △ STD, TR ISDB-T Multimedia Forum △ Release Technical Report Working Group Today 24

25. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 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 ISDB-T Multimedia Forum 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 91 members as of 31 January 2011 Steering Board Content Broadcasting Committee Broadcasting Infrastructure Committee Operational Guidelines WG Core Council 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 25

26. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All GSC16-GRSC9-03 Operational Guidelines for ISDB-Tmm Volume TitleSummary 0 Multimedia Broadcasting Operational Guidelines Explanation for multimedia broadcasting services and technical outlines. 1 Provisions for Download operationsGuideline 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 CodingMultimedia coding guideline for data broadcasting, subtitles, letter on screen and file casting. 4 Provisions for PSI/SI OperationsNecessary 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 OperationsGuideline for encoding Video and Audio and Multiplexing for transmission 8 Provisions for Contents ProtectionGuideline for contents protection (receiver inside protect and signal output protect) 9 Not used- 10 Provisions for Meta Data OperationsGuideline 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. 26

27. Halifax, 31 Oct – 3 Nov 2011ICT Accessibility For All 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” Related Standards 27