April 2015

The 8th Regional WiMAX Promotion Association Symposium
Regional WiMAX Promotion Association held its 8th Symposium in Tokyo on 26 January
2015 under the joint sponsorship of ARIB. WiMAX (Worldwide Interoperability for
Microwave Access) is based on IEEE802.16 technology.
About 130 participants were given lectures and panel discussion about "systemdevelopment to advance regional BWA (Broadband Wireless Access) system" and"regional BWA platform initiative"
The program of the Symposium was as follows.
(1) “Explanations for the regional BWA system (revision)” by MIC (Ministry of Internal
Affairs and Communications)(2) “Concept of Regional BWA platform” by JCTA (JAPAN Cable and Telecommunications
Association)(3) “Explanations for the regional BWA joining manual” by Regional WiMAX Promotion
Council(4) Panel Discussion: Effectiveness of the application using Regional BWA

The 8th Regional WiMAX
Promotion Association Symposium

Panel Discussion
1

CISPR Frankfurt Conference Briefing Session
CISPR Frankfurt Conference Briefing Session was held in Tokyo on 27 February 2015
under the sponsorship of Electromagnetic Compatibility Conference Japan (EMCC).
ARIB is a secretariat of EMCC. 88 participants were attended to the Session.
The Session covered CISPR meeting held in Frankfurt, Germany from 13 to 23 October
2014 with 38 participants including Prof. Masao Taki of Tokyo Metropolitan University
Graduate School from Japan.
Following the opening remarks by Dr. Yoshio Kami (Professor Emeritus of the Universityof Electro-Communications), chairman of this Conference, 7 lecturers who participated inthe CISPR Frankfurt Conference had lectured on deliberation overview of the plenary
meeting and subcommittee meeting.

CIPR: Comité international spécial des perturbations radioélectriques

CISPR Frankfurt Conference Briefing Session2The 18th meeting of the APT Wireless Group held in Kyoto
The 18th APT Wireless Group (AWG-18) meeting was held from 9 to 13 March 2015 atKyoto International Conference Hall. About 230 participants from 24 countries attendedthe meeting.
This was the first AWG meeting that Dr. Kohei Satoh (Managing Director of ARIB) served
as the chairperson.
In this meeting, "AWG Workshop on Future Mobile Communications (5G)" was held todeepen the understanding of the fifth generation mobile communication system (5G), andabout 160 people participated.
From the Fifth Generation Mobile Communications Promotion Forum（5GMF）, thechairman of 5GMF, Dr. Susumu Yoshida (Professor Emeritus of Kyoto University) carriedout the presentation and an acting chairman of its Strategy & Planning Committee, Mr.
Takehiro Nakamura participated in the panel discussion.
In addition, exhibition corner was set up by several Japanese companies. 5GMF also
exhibited the panel in the conference hall. Mr. Kousaburo Nishime, State Minister forInternal

AffairsandCommunications,Mr.

François

Rancy,

DirectorofITU

Radiocommunication Bureau and Ms. Areewan Haorangsi, Secretary General of APT
visited the exhibition corner and showed high interest to the future activities of 5GMF.

Mr. Nishime, State Minister andDr. Yoshidaat the exhibition corner

Dr. Satoh at AWG-18 meeting3

Visit of Atty. Cordova, NTC Commissioner, to ARIB
On 10 March 2015, Attorney G. A. Cordova, Commissioner, National Telecommunications
Commission (NTC) of the Republic of the Philippines, visited the office of ARIB together
with 5 other executive members, including Mr. A. N. Blanco, Chief of Broadcast Services
Division.

The NTC mission had a meeting with DiBEG members on the ISDB-T

implementation.
Since the Filipino government re-asserted the adoption of the Japanese ISDB-T as itsnational digital TV standard in November, 2013, DiBEG has been supporting NTC indeveloping Filipino ISDB-T standards.

During the meeting Commissioner Cordova

highly appreciated DiBEG's support and cooperation so far, and also expressed his
expectation of the continuing support in the standardization of the specifications of thereceivers, adding an encouraging remark that the Filipino ISDB-T implementation might
be a great showcase toward other south-east Asian countries.
Commissioner Cordova, at this occasion, handed a certificate of appreciation to Mr. T.
Watanabe, Chairman of DiBEG, expressing his thanks for the support and cooperation
extended to NTC by DiBEG.

Meeting between DiBEG and NTC Delegation

Certificate of Appreciation

Attendees at DiBEG-NTC Meeting4

The 5G Infrastructure Association and 5GMF
concluded the Memorandum of Understanding of 5G
The 5G Infrastructure Association based in Europe and 5GMF (The Fifth Generation
Mobile Communications Promotion Forum) based in Japan have agreed to conclude theMemorandum of Understanding (MoU) to collaborate in road mapping and developing thenext generation mobile communication system, 5G.
On 25 March 2015, the MoU was signed in Frankfurt by Dr. Werner Mohr, Chair of theBoard of 5G Infrastructure Association and Mr. Takehiro Nakamura on behalf of 5GMF.
The purpose of the MoU is to exchange information and views on high interest fields
about 5G and to explore collaboration opportunities on 5G including a meeting orworkshop jointly.
The MoU endorses to create cooperative framework between two organizations. So
hereafter, it is highly expected that information and views exchange of Europe and Japan
will proceed rapidly and the study to realize 5G mobile communication system will bepromoted.

MoU signed by Dr. Werner Mohr and Mr. Takehiro Nakamura
5Monthly seminars on radio wave use

No.12730 January 2015

Title

Report from the Information and Communications Council on"Information and Communications Policies Expected toward the2020’s"

Speaker

Yoshinori Shibayama
Senior Advisor
Telecommunications Policy Division Telecommunications Business
Department Telecommunications Bureau
Ministry of Internal Affairs and Communications

Summary

The seminar covered report from the Information andCommunications Council on "Information and Communications
Policies Expected toward the 2020’s" and outlook on policy
deployment.

No.12818 February 2015

Title

Latest research trends of cognitive radio in ITU-RSpeaker

Mr. Hitoshi Yoshino, the Chairman of ITU-R WP5A WG5 （SoftbankMobile）

Summary

The seminar covered basic information on cognitive radio system andprogress of its study in ITU-R.

No.12926 February 2015

Title

Technology and Policy for Millimeterwave 5G and Backhaul

Speaker

Michael J. Marcus, Sc.D., FIEEE

Summary

The seminar covered the latest trend in Europe and the US to use
mobile communication system with millimeter waveband. FCC's
Notice of Inquiry was one of the main topic.

6

AUDIO DATA FORMATIN THE INTERFACE FOR UHDTV PRODUCTION SYSTEMS（STD-B64 Ver. 1.0）
This standard specifies a data structure and multiple method when digital audio signal istransmitted using auxiliary data area in the interface signal between studio equipment ofUHDTV.
English version is not available.

PORTABLE 120GHz BAND DIGITAL TRANSMISSION SYSTEMFOR ULTRA-HIGH DEFINITION TELEVISION PROGRAM CONTRIBUTION（STD-B65 Ver. 1.0）
This standard specifies a digital field pickup unit (FPU) system for broadcasting program
material transmission using 120GHz band (116-134GHz) that can transmit UHDTV with24Gbit/s.
The system is expected to operate as a "short-range FPU" when cabling is difficult tocross roads and rivers.
English version is not available.

Study for Telecommunication System
Radio utilization system for robots
The study on radio utilization system for robots started in November 2014. About 90
participants including observers who offer information related to the robot took part in
the first meeting.
Discussion covered the trend of unmanned construction systems, robots for disasters,
unmanned aircrafts and frequency bands available for a robot.

7

R&D for Telecommunication System
1 Wireless LAN System
The work on following three new subjects has been conducted.
(1) To analyze the interference between APs (Access Pints) and STAs (Stations) in thedense environment.
(2) To study the utilization-rate by time and frequency concerning OFDM.
(3) To investigate the interference by adjacent channels in 5GHz band.
Based on the study result for the last year's subject "suppression of using 2.4GHz band
overlap cannel", draft of revised ARIB standard to add recommended channel inoperation has been made.
As a result, Standard Assembly has approved to revise ARIB STD-T66 reflecting theresult of study.

2 IMT Standardization
The work has been conducted to prepare for the 20th WP5D (15 to 22 October 2014 inGeneva).
6 input documents has been drafted. With some correction, they have been submitted to20th WP5D.

Study for Broadcasting System
Quality Evaluation Method for Broadcasting(1) Sound Quality Evaluation
For the requirements of the renderer as a reference for use in the evaluation of soundmetadata, evaluation purposes, the minimum required set of metadata, the provision
destination of renderer and desired speaker layout has been discussed.
The study on subjective quality evaluation method for three-dimensional arrangement ofspeakers has been conducted to find appropriate directivity of the speaker, evaluation
facilities size and reverberation time.

8R&D for Broadcasting System
1 Digital Broadcasting Systems
Following new and revised standards have been drafted to submit Standard Assembly.
①ARIB STD-B63 (Receiver for Advanced Wide Band Digital Satellite Broadcasting) V1.0
②ARIB STD-B24 (Data Coding and Transmission Specification for Digital Broadcasting)
V6.1③ ARIB STD-B32 (Video Coding, Audio Coding and Multiplexing Specifications forDigital Broadcasting) V3.1
④ARIB STD-B46 (Transmission System for Terrestrial Mobile Multimedia Broadcasting
based on Connected Segment Transmission) V2.1
⑤ARIB STD-B53 (Receiver for Terrestrial Mobile Multimedia Broadcasting Based onConnected Segment Transmission) V2.1
⑥ ARIB STD-B60 (MMT － Based Media Transport Scheme in Digital Broadcasting
Systems) V1.1
The Standard Assembly has approved above six Standards.
(1) Multiplexing Technology
Clarification and Corrections of STD-B60 has been drafted.
STD-B24 has been drafted to revise the system to transmit subtitles and captions using
ARIB-TTML (Timed Text Markup Language) by TS (Transport Stream).
New descriptor, file split transmission technology and content cache, etc. for the multi
programing have been studied.
ARIB STD-B60 is planned to be revised.
(2) Video Coding Technology
ARIB STD-B32 has been drafted to clarify description on HEVC.
(3) Audio Coding Technology
ARIB STD-B32 has been revised to enhance MPEG-4 AAC (Advanced Audio Coding) toimprove sound quality of the V-Low multimedia broadcasting and enhancements of dialog(narration, speech).

9The guidelines of seamless switching in MPEG-4 AAC and MPEG-4 ALS is planned tostudy.
(4) Data Coding Technology
ARIB STD-B24 has been discussed to add the TTML (Timed Text Markup Language)transmission scheme in TS and the result of deliberation has been inputted toMultiplexing Technology WG.
(5) Data Broadcasting
ARIB STD-B62 (Multimedia Coding Specification for Digital Broadcasting (SecondEdition)) has been studied to add the provisions of local storage area and data resourcescache control.
(6) Receiver for Digital Broadcasting
ARIB STD-B53 has been discussed to add the receiver function of disaster prevention andsafety information, and higher sound quality for V-Low multimedia broadcasting.
ARIB STD-B63 has been discussed to draft.
(7) Terrestrial Digital Broadcasting Transmission Coding
ARIB STD-B46 has been revised to add disaster information to AC (Auxiliary Channel).

2 Program Production Systems(1) Video Program Production Systems“Video Program Production Systems WG” had a joint meeting with “Video Program
Production Systems for UHDTV WG” belonging to “R&D Group on Ultra-High-Definition
Television Broadcasting Systems”.
Requirement of color bar for UHDTV is planned to establish in July 2015.
Conversion formula from the Recommendation BT.709 to BT.2020 has been in work todevelop a standard or a technical report.
(2) Sound Program Production Systems“Sound Program Production Systems WG” had a joint meeting with “Sound Program
Production Systems for UHDTV WG” belonging to “R&D Group on Ultra-High-Definition
Television Broadcasting Systems”.
Issue of stereo-mono downmix has been discussed.
10

In Japan, measurement of loudness is based on stereo playback. In case of automatic
downmix in mono playback equipment, there exists sound level difference by 6dB. So It
has been discussed to find how to correct it.
(3) Digital Closed-caption Production
Since the ARIB-TTML has been standardized in ARIB STD-B62, it is necessary to workon the improvement of the conversion method and the operating rules when it would be
used in the non-broadcasting area.

3 Transmission of Television Program Contribution
ARIB STD-B65 (Portable 120GHz Band Digital Transmission System for Ultra-HighDefinition Television Program Contribution) was drafted.
This standard specifies technical standards, compatibility between manufacturers andoperational conditions of the newly available 120GHz band FPU.

4 Ultra-High-Definition Television Broadcasting Systems(1) Video Program Production Systems for UHDTV“Video Program Production Systems for UHDTV WG” had a joint meeting with “Video
Program Production Systems WG” belonging to “R&D Group on Program ProductionSystems”.
(2) Sound Program Production Systems for UHDTV“Sound Program Production Systems for UHDTV WG” had a joint meeting with “Sound
Program Production Systems WG” belonging to “R&D Group on Program Production
Systems”.
(3) Interface between Program Production Equipment
The work has been conducted to revise STD-B58 regarding the inter-studio andinter-station transmission using wavelength division multiplexing system.
As for the payload ID packet, it has been concluded that 10bit/word would be appropriate
in line with the deliberation in SMPTE.
The standard about the audio data format in the interface for UHDTV production
systems has been drafted.

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