ARIB Standardization Activities on Multimedia Broadcasting for Mobile Terminals

1. ARIB Standardization Activities on Multimedia Broadcasting for Mobile Terminals 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: ARIB STD-B46) • 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 File Based(download) services and Real time (streaming) services in a single allocated bandwidth. File Based 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 8

9. Service Concept of 「NOTTV」 －Mobile・Smart TV－ Real time Broadcasting Internet can be used on Mobile Phone during Watching Real Time Broadcasting (Link to Social networking & interactive services) Store Relevant Contents on your Mobile when you are watching Real Time TV Program Mobile + TV + Social Media File Based Broadcasting Mobile Communications File Based Broadcasting Delivers Contents, and Mobile Receives and stores those data.

10. Technical specifications of ISDB-Tmm 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 10

11. Technical specifications of ISDB-Tmm (cont.) 11

12. ISDB-Tmm for 6/7/8 MHz Bandwidth • Transmission parameters of the ISDB-Tmm are fully compatible with ISDB-T, and can fit into any of 6/7/8 MHz planning channels 6MHz Planning Band 6MHz Frequency ISDB-Tmm 13segments(6/7/8MHz) †6/7/8 MHz transmission parameters for ISDB-Tmm is defined in ITU-R BT.1833 as Multimedia System “F” and ARIB STD-B46 7MHz Planning Band 7MHz Frequency 8MHz Planning Band 8MHz Frequency Existing Broadcasting Channels (Digital / Analog) †Planning criteria for 6/7/8 MHz ISDB-T are defined in ITU-R BT.1368 “Planning criteria for digital terrestrial television services in the VHF/UHF bands”. 12

13. 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 １～3ch Analog TV ４～12ch 90MHz 108MHz 170MHz 202.5MHz 207.5MHz 222MHz Guard band Multimedia Broadcasting (V-Low) Nation wide Multimedia Broadcasting (V-High) Public Safety and Homeland Security Band After Reallocation (2012.7～) Total:33 segments 13 segments Type 13 segments Type 1 segment type: 7 slots total 13

14. 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/DRMSystem Content Complement Server Broadcast System Communications Network Communications System 14

15. ISDB-Tmm Protocol Stack Real - time Broadcasting Service File Based BroadcastingService 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 15

16. ISDB-TmmTechnical Features 16

17. 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 ：720×480(VGA+) ：30 frame/sec ：ITU-T H.264/MPEG-4 AVC ：High ：4.2 ：1920×1080(1080HD) ：60 frame/sec • Codec • Profile • Level • Resolution • Frame Rate QVGA VGA+ 17

18. 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) ：MPEG HE-AACv2 Surround ：Monaural / Stereo / 5.1ch • Codec • Audio Channel Stereo Monaural Surround 18

19. 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 19

20. 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_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 E-Mail Download 20

21. 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 ・10 MByteFile Transmission ・1,000 byte/packet ・FEC rate = 1/2 (AL-FEC) ・Repetition=2 (Carousel) AL-FEC Receive Success Rate 10 20 30 40 50 60 Packet Error Rate(%) 21

22. File Delivery Procedures Contents (Arbitrary Length) ・・・ File Segmentation ・・・ FEC Packet FEC Packet Generation ・・・ FLUTE (File Delivery Protocol) ・・・ UDP/IP LCT Header, FEC Payload ID UDP/IP Header ROHC (Header Compression) ・・・ ULE Header CRC32 ULE (Encapsulation) ・・・ TS Header IP over MPEG-2 (TS Packet) ・・・ 15 188Byte 22 22

23. Content Complementation by Communications Channel • When the content delivered over the broadcast channel is incomplete, the missingdata 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 ・・ ・・・・・・ ・・・・・・

24. Advanced Power Saving • 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 13segment 1segment 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 Receiver Wakeup Scheduling Transmission Control Meta-data EPG/ECGMeta-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 24

25. 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 25

26. Real Time Broadcasting Service and Communications (Social Networking) ・Viewers can share their impressions and feel presence when they are watching live concert or real time football game by using social media service at the same time. ・It broadens the viewer’s community and raises the value of the programs. Live TV If you activate the application of mmbi, TV program which is on air now will show up. Social Media Viewers are able to communicate with other viewers while they are watching. ※sample image

27. Distribution of electric newspaper or magazines（Digital Contents） ・Possible to distribute huge amount of contents such as electric news papers or magazines at once.

28. Mobile Multimedia Broadcasting during Natural Disasters • Suitable for disaster information broadcasting due to capability to transmit massive amounts of information at once without traffic congestion. • Able to broadcast disaster information and programs via real-time broadcasting services • Able to offer disaster related information (IP data) via file based broadcasting services After Disaster Real-time Broadcasting Disaster-related program Right before earthquake Right after earthquake Earthquake bulletins, incl. information about tsunami, etc. Early-warning quake alert 震度４以上が観測された地域は次のとおりです。 神奈川県　横浜市　相模原　川崎市　　 緊急地震速報　強い揺れに警戒 File Based Broadcasting Disaster-related information, such as evacuation centers, planned blackouts, safety information for families, etc.

29. Service Area Expansion • Efficient service area expansion by large scale base stations • Starting with 60% of household coverage, expecting >73% in the first year and > 90% in the third year 1st Year (Fiscal year 2012) 3rd Year (Fiscal year 2014) 5th Year (Fiscal year 2016 and later) Covering mainly on Tokyo-Nagoya-Osaka area (about 73% household coverage at the end of fiscal year 2012) Covering major cities (about 91% household coverage at the end of fiscal year 2014) Further expanded coverage provided

30. ISDB-TMultimedia 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 Core Council Content Broadcasting Committee Technology Committee Test Committee • Discussions on preparation for content broadcasting business • Information exchange among potential content broadcasters • Discussions on other issues related to content broadcasting business • Drafting operational guidelines document • Information exchange on broadcasting infrastructure • Discussions on other issues related to broadcasting infrastructure Operational Guidelines WG 101 members as of 22 September 2011 30

31. Related Standards 31 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”