ITU Asia-Pacific Centres of Excellence Training on Digital Broadcasting Technologies and Implementation 5-7 FEBRUARY 2014, New Delhi, India Tomoyuki Ohya Director, Senior Vice President, mmbi, Inc. Chair, Technology Working Group, ISDB-T Multimedia Forum ISDB-Tmm Mobile Multimedia Broadcasting in Japan
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ITU Asia-Pacific Centres of Excellence Training on
Digital Broadcasting Technologies and Implementation
5-7 FEBRUARY 2014, New Delhi, India
Tomoyuki Ohya
Director, Senior Vice President, mmbi, Inc.
Chair, Technology Working Group, ISDB-T Multimedia Forum
ISDB-Tmm Mobile Multimedia
Broadcasting in Japan
Digital Switch Over in Japan 1
Analog Switch Off (24 July 2011*) Except Fukushima, Miyagi, Iwate prefectures which were pospponed to 31 March 2012 because of 3.11, Great East Japan Earthquake
470~710MHz (13~52ch)
90 108 170 222 710 770 470
(60MHz bandwidth) (52MHz bandwidth)
(18MHz bandwidth)
(240MHz bandwidth)
【Digital TV】
【 UHF】 【 V-Low】 【 V-High】 【 UHF】
470~770MHz (13~62ch)
90~108MHz (1~3ch)
170~222MHz (4~12ch)
【Analog TV】
【 V-Low】 【 V-High】 【 UHF】
(370MHz bandwidth)
90 108 170 222 770 470
mmbi, Inc. launched “NOTTV” service on
April, 2012, using 6MHz in V-High
Quick Overview of NOTTV 2
NOTTV is a subscription-based, nation-wide Mobile Multimedia
Broadcasting service for smart phones and tablet devices, the
service which was commercially launched in April 2012 in Japan,
using a part of VHF spectrum after analog TV switch off.
NOTTV subscriber reached 1,531,014 at the end of December 2013.
Based on ISDB-Tmm, a family of the ISDB-T global standard.
8.8 Million+ NOTTV compatible Android smart phones and tablet
devices have been sold in Japan from manufacturers such as Fujitsu,
LG, NEC, Samsung, Sharp, Sony, and Panasonic.
NOTTV program mainly features on live, original contents such as
sports, music, entertainment, and drama; broadcasting 3 real time
channels, including a 24 hours news channel, and 200+ storage type
contents for JPY 400 (USD 4) per month.
Table of Contents 3
(1) ISDB-Tmm Technologies
(2) ISDB-Tmm Broadcasting Network
(3) NOTTV Broadcasting Services
ISDB-Tmm Services
(2) File-based Broadcasting Service (1) High-quality Real Time Service ■ Providing high quality original live contents
and licensed drama/movie programs Audio visual contents as well as digital contents by broadcasting channels are stored in mobile terminals temporarily. Subscribers are able to watch their favorite contents at their convenient timing. 。
3G
LTE
(3) Use of Communications and Broadcasting Channels
ISDB-Tmm based mobile multimedia broadcasting was launched on
April, 2012, using the VHF spectrum after analog TV shutoff.
- # of subscribers (400yen/month) reached 1.5 million
- 8.8 million+ smartphones/tablets in 39 models shipped
ISDB-Tmm provides high quality media coding, advanced use of meta-
data, high efficiency file delivery protocol, advanced content protection,
etc. on top of ISDB-T, supporting:
- Conventional real-time broadcasting
- File-based broadcasting
78%+ house hold covered with 61 transmitters, and targeting 90%+ until
the end of fiscal year 2014.
Key success factors:
- Corroboration among Broadcasters (contents), Mobile network
operator (services), Manufacturers (handsets)
- new program/service format utilizing communications functionality
Thank you for your attention.
27
(Sup.) ISDB-Tmm Standard Documents 28
• ITU-R BT-1833: “Broadcasting of multimedia and data applications for mobile reception by handheld receivers”
• ITU-R BT-2016: “Error-correction, data framing, modulation and emission methods for terrestrial multimedia broadcasting for mobile reception using handheld receivers in VHF/UHF bands”
• ARIB STD-B10: “Service Information for Digital Broadcasting System” – English version with ISDB-Tmm update not yet available
• ARIB STD-B25 Part 4: “Conditional Access System Specifications for Digital Broadcasting” – English version with ISDB-Tmm update not yet available
• ARIB STD-B32: “Video Coding, Audio Coding and Multiplexing Specifications for Digital Broadcasting” – English version with ISDB-Tmm update not yet available
• ARIB STD-B38: “Coding, Transmission and Storage Control for Server Type Broadcasting” – English version to be available
• ARIB STD-B45 Part 2: “Contents Download for Digital Broadcasting System” – English version to be available
• 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” – English version partly available as “http://www.isdb-t.jp/doc/ISDB-Tmm_TR_volume0.0_0.75ver.pdf”