January 2016

Start of the study on the telecommunications promotion
in medical institutions
The first meeting of the "Telecommunications Promotion Committee in medical
institutions" which had been set up under the "Electromagnetic Compatibility Conference
Japan (*1)" had been held on 14 September 2015 attended by Ministry of Internal Affairs
and Communications, “Ministry of Health, Labour and Welfare”, medical personnel,
academics, equipment manufacturers, telecom operators, etc.
In the Committee, in order to promote proper use of radio waves in the medical
institutions, it had decided to study the following items.
(1) Improvement measures of radio wave environment in medical institutions(2) Enhancement measures of management system of the radio wave environment inmedical institutions(3) Promotion measures to introduce advanced medical ICT systems.

The first meeting of the Telecommunications Promotion Committee
in medical institutions
1

Reports of these studies and guidance for realizing appropriate radio wave use in medical
institutions will be put together by March 2016 and notified to the medical institutions.
*1 Consultative organization to discuss measures to prevent and remove obstacles
to electronic devices by radio waves. It is composed of academics, relevant
ministries, relevant agencies and industry organizations. The secretariat of it isserved by ARIB.

The 5th Study Group on Radio utilization system for robots
The 5th Study Group on Radio utilization system for robots had been held on 16
September 2015 in ARIB office.
This time, from the ad hoc WG in which the frequency sharing study with existing
wireless system have been performed, the interim report of the following items was
conducted.
(1) Study method of frequency sharing(2) Overview of the existing wireless system(3) Frequency sharing study situation (required separation distance by the desk study
and technical issues, etc.)
Furthermore, from the Ministry of Internal Affairs and Communications, study situation
related to the radio utilization system for robots in the Information and Communications
Technology Subcommittee of the Information and Communications Council etc. had beenreported.

The 5th Study Group on Radio utilization system for robots

2

In the Study Group, it had been decided to summarize the results on frequency sharing
study of 2.4GHz band and 5.7GHz band and the technical conditions of radio equipment
by around October.
Study results of this Study Group will be proposed in turn to the land radio
communication committee of the Information and Communications Council. In addition,
the study results of the Ministry of Internal Affairs and Communications, also
appropriately, will be shared in this Study Group.

22nd ITS World Congress Bordeaux 2015
The 22nd ITS World Congress was held from 5 to 9 October 2015 in Bordeaux, France
which was registered as a World Cultural Heritage Site by UNESCO in 2007, under thetheme of "TOWARDS INTELLIGENT MOBILITY - Better use of space”.
The main venue of the Congress was "Congre et Expositions de Bordeaux" which was
about 30 minutes away from the city center by the tram.

Place de la Bourse (Bordeaux)< ITS World Congress Bordeaux 2015 Outline>· Participants· Conference registrants· Sessions· Exhibitors organizations· Participating countries: 12,249 people(Mr. Matsui, Representative Director and two otherpeople participated from ARIB): 3,871 people: 257 sessions: 433 organizations: 102 countries
3During the ITS World Congress session, the ARIB standard STD-T109 (700MHz band
Intelligent Transport Systems) had been recommended as ITU-R M.2084 along with thestandards of Europe, the United States and South Korea, and officially issued.
This news was introduced in the session ES07 and SIS54, and the world's first commercial
vehicles equipped with the 700MHz band Intelligent Transport Systems' in-vehicle device
were exhibited by Japanese car manufacturer.
Along with the 79GHz band high resolution radar, advancement of Japanese ITS
technology and efforts of ARIB had been able to appeal in the world.
In addition, organized by ITS Info-communications Forum of Japan which secretariat wasserved by ARIB, Vehicle Safety Communications meeting had been held attended by 18
key persons from Europe, the United State and Japan, and exchange of views had been
carried out actively.

Exhibition panel of
ITS Info-communications Forum of Japan

Japan pavilion

CEATEC JAPAN 2015
From 7 to 10 October 2015, CEATEC JAPAN 2015 was held at Makuhari Messe, Chiba
prefecture near Tokyo. ARIB set up a booth at Life & Society Stage and introduced ARIB
activities.
CEATEC : Combined Exhibition of Advanced Technologies
4This event has a high degree of attention as a state-of-the-art ICT & Electronics
comprehensive exhibition in Japan. In 2015, 531 companies and organizations exhibitedand about 1000 people had come to ARIB booth.
In the ARIB booth, following contents were exhibited and introduced.
(1) Overview of ARIB
(2) ARIB's research, development and international cooperation activities(3) "20 years history of radio industry" since foundation of ARIB
(4) Technologies and systems which won the 26th Radio Achievement Award

ARIB booth in CEATEC JAPAN 2015
In addition, ARIB had a technical seminar entitled "Trends in new technology
standardization in the field of communication and broadcasting" at the International
Convention Center of Makuhari Messe on 7 October, and over 100 people attended theseminar.

ARIB seminar in CEATEC JAPAN 2015
5

The International Workshop on the Fifth Generation
Mobile Communications Systems (5G)-2015
The International Workshop on the Fifth Generation Mobile Communications Systems(5G)-2015 was held as part of the programming at CEATEC Japan 2015 at theInternational Conference Hall of Makuhari Messe in Chiba, Japan, on 8 October 2015. The
workshop was organized by Ministry of International Affairs and Communications (MIC)and co-organized by International Telecommunication Union (ITU) and the Fifth
Generation Mobile Communications Promotion Forum (5GMF).

The International Workshop on the Fifth Generation
Mobile Communications Systems (5G)-2015

Mr. Toru Fukuoka, Director-General of Telecommunications Bureau, MIC, and Mr. Colin
Langtry, Chief of Study Group Department, ITU-R, opened the workshop with theirindividual welcome addresses. Professor Emeritus Susumu Yoshida, Chairman of the 5G
Workshop-2015 Organizing Committee, then gave a keynote speech. His speech was
followed by a series of individual presentations and a panel discussion.

Representatives of international standards organizations and national organizations gave
the following individual presentations on the current state of research and development
about 5G systems around the world.

6

SpeakerDr. Håkan Ohlsén
Vice Chairman,
ITU-R Working Party
5D

Mr. Chris Pearson
Chairman, 4G
Americas(USA)

Dr. Werner Mohr
Chair of the Board of
5G Infrastructure
Association(Europe)

Speaker

Title“Update on
ITU-R Workon IMT-2020
for 5G”

Ms. Zhiqin Wang

“4G
Americas’
Vision on 5G
for theAmericas”

Prof. Youngnam Han“5G PPP –The
European
5G
Research
Program”

Prof. Hiroyuki
Morikawa

Vice Chairperson,
IMT-2020 (5G)
Promotion Group(China)Title“5G
Research
Status in
China”“Roadmapfor 5G”

Chair, Steering
Committee, 5G
Forum(South Korea)

Chairman of 5GMF
Strategy & Planning
Committee(Japan)“5GMF
activities for2020 andbeyond inJapan”

Presentation title of each speaker
The panel discussion consisted of Dr. Håkan Ohlsén, Dr. Werner Mohr, Ms. Zhiqin Wang,
Prof. Youngnam Han, as well as Prof. Seiichi Sampei, Chairman of the TechnicalCommittee, 5GMF, and Dr. Ryutaro Kawamura, Acting Chairman of the Network
Architecture Committee, 5GMF. Led by the panel moderator, Mr. Waichi Sekiguchi of
Nikkei Inc., the panelists discussed about the various processes needed as the world moves
forward towards implementing a working 5G system (e.g. Verification Trials) as well as
how firms could collaborate with those outside of the mobile communications industry toenhance interest in 5G among mobile users.

Panel discussion
7

The 18th meeting of Study Group for New Technology for the Next
generation Broadcasting System
The 18th meeting of Study Group for New Technology for the Next generation
Broadcasting System was held on 9 October 2015, and a lecture on "research anddevelopment trend of the next-generation terrestrial broadcast" by Mr. Kenichi Tuchida of
NHK Science and Technical Research Laboratories was held. In this meeting, terminationof this Study Group was determined.
At the year of 2008 in which Study Group was established, the digital broadcasting thatwas started by BS digital broadcasting of 2000 and terrestrial digital broadcasting of 2003,
have spread steadily and the full-fledged digital broadcasting era was reached.
In such a situation, a new study for the development of next-generation broadcasting
services, such as broadcasting with the aim of high sense of presence and merging ofcommunication and broadcasting had been discussed actively. ARIB established Study
Group for New Technology for the Next generation Broadcasting System in 2008.
In the first phase (2008 to 2011),
technology

relatedto

IPTV,

technology relates to a highpresence broadcasting such as
three-dimensional

television,technology

the

new

using

the

in

broadcastingmeta-data and in the second
phase

(2010

to

2014),

technology for the future 3DTV,
newservicesforhybridbroadcast broadband systems,
digital transmission technology
of

the

next

broadcasting,generation
theSG

established new working groups
respectively

and

conducted

Reports summarized by the Study Groupsurvey research activities.
Since a lot of research theme has already been made practical use in broadcasting services,
the Study Group determined to play its role and decided to terminate the activities.
8

The 3rd Study Group Meeting on Private wireless communication- Shared use of private wireless communication system The Study Group on Private wireless communication was established on April 2015 inorder to provide a place to investigate technologies and usage trends of the private
wireless communication, domestic and worldwide, and study the enhancement of Private
wireless communication.
On 16 October 2015, the 3rd study group meeting was held under the theme of "shared useof private wireless communication system" attended by more than 80 people.
In the 3rd study group meeting, following presentations had been carried out.
(1) " Trend of digitization on mobile radio system for business use " by the Ministry ofInternal Affairs and Communications(2) " Shared use of the prefectural and municipal disaster prevention administrative
radio " by Shizuoka Prefectural Government(3) " Shared use of MCA radio system " by The MRC Foundation(4) " Shared use of Business transceiver service " by NTT DOCOMO(5) " Shared use of IP wireless service " by SoftBank
After the presentation, lively free discussion about the needs and countermeasures of theshared use of private wireless communication systems in the fields of public and generaluse had been carried out.

The 3rd Study Group on Private wireless communication

9

Private 5G promotion organizations ofEurope, US, China, South Korea and Japansigned a memorandum of understanding on "Global 5G Events"
On 20 October 2015, the workshop named "5G Workshop between Regional initiatives"
was held in Lisbon, Portugal as part of one of the European largest ICT event "ICT 2015 Innovate, Connect, Transform" (held on 20 to 22 October 2015).
In the Workshop, participants from the following governmental and private 5G promotion
organizations had gathered under one roof and exchanged information and opinions fromthe viewpoint of standardization and frequency band in order to realize and generalize 5G
earlier.
Japan・Ministry of Internal Affairs and Communications
・The Fifth Generation Mobile Communications Promotion Forum(5GMF)

Europe・European Commission
・The 5G Infrastructure Public Private Partnership (5G PPP)

US・Federal Communications Commission (FCC)・4G Americas

China・Ministry of Industry and Information Technology
・IMT-2020 (5G) Promotion GroupSouth Korea

・Ministry of Science, ICT and Future Planning・5G Forum

From Japan, Mr. Yuji Nakamura (Director of New-Generation Mobile Communications
Office, Land Mobile Communications Division, Ministry of Internal Affairs andCommunications), Dr. Kohei Satoh (Secretary General of 5GMF and Executive Manager
on Standardization of ARIB) and Mr. Takehiro Nakamura (Acting Chairman of Strategy &Planning Committee, 5GMF)
had made presentations aboutsituation and future trends of
5G in Japan and carried out
lively exchange of informationand opinions with attendees
from foreign countries in thepanel discussion.
In this workshop, five private
5G promotion organization had
agreed to hold "Global 5G
events" twice a year in turn andsigned a memorandum of
understanding between eachother.

Commemorative photo
after the announcement of the Memorandum
10Meeting with Brazilian Society of Television Engineering (SET)
ARIB invited Olympio Franco, President, and Fernando Bittencourt, Vice President of theBrazilian Society of Television Engineering (SET) on 17 November 2015. A meeting for
opinion exchange was held with members of the Digital Broadcasting Experts Group(DiBEG) and officials of the Ministry of Internal Affairs and Communications.
Franco, president of SET, highly appreciated the support of DiBEG on ISDB-T adopted in
Brazil, and remarked that it was very meaningful to exchange opinions among experts ofboth countries for further strengthening cooperation in the future.
Subsequently, they exchanged views and opinions among the participants about cooperationof both countries for the international permeation of ISDB-T, vision on the next generationof TV broadcasting, such as 4K / 8K and Integrated broadcast-broadband (IBB) systems, aswell as the interference issue of digital terrestrial service and mobile communication
systems.
Also, next year will be the 10th anniversary of adoption of ISDB-T in Brazil, and theanalog switch-off (ASO) wave will be pushed forward, in which they mutually confirmed tomaintain close exchange of opinions towards further development of ISDB-T in the bothcountries.

Opinion exchange with SET
11

ARIB/DiBEG booth in InterBEE2015
InterBEE2015 was held in Makuhari Messe from 18 to 20 November 2015. ARIB
performed public relations by providing a booth. In InterBEE2015, 996 companies
exhibited, and the registered visitors were 35,646.
The international expansion of IBDB-T by the standardization of trends in the field ofDigital Broadcasting Experts Group (DiBEG) was introduced on the panel in our booth,

ARIB/DiBEG booth and Panels in InterBEE2015
Lectures by the representatives of the Brazilian Society of Television Engineering (SET)
Brazil decided to adopt the ISDB-T standard in 2006, heloped by the activities of theinternational promotion by DiBEG, and they began digital terrestrial service in 2007.
Thereafter SET and ARIB / DiBEG have been in close cooperation.
Recently, in a special forum at theInterBEE2015,

SET

representatives

lectured on the trends of the digital
broadcasting ahead of the Olympic Gamesin Rio de Janeiro in 2016, DiBEG willcontinueits

supportandcooperation

toward SET for successful digital TV
coverage of the Rio Olympic Games.

Special forum by the SET
attended by full capacity of audience
12

The 6th Study Group on Radio utilization system for robots- Approved final report of ad hoc WG and decided the future action plan The 6th Study Group on Radio utilization system for robots had been held on 2 December
2015 in ARIB office.
This time, from ad hoc WG performing frequency sharing study with existing wirelesssystem(candidate frequency band : 2.4GHz and 5.7GHz),

result of

final report on the study

frequency sharing conditions and draft of technical conditions had been

performed.
Furthermore, from the Ministry of Internal Affairs and Communications, report on the
study situation of 169MHz band telemeter/telecontrol radio utilization system for robots
had been performed.
In the Study Group, following action plan had been approved.
(1) Propose the WG study results to the robot working group of the land radio
communication committee, Ministry of Internal Affairs and Communications(2) Perform the study on plan of operational arrangement between systems and carry out
the summarization of entire report by around May 2016.

The 6th Study Group on Radio utilization system for robots

13Monthly seminars on radio wave use

No.13423 October 2015

Title

Activities on 5G and Beyond in Europe

SpeakerDr. Hendric Berndt
Former Chief Technology Officer & Chief Science Officer and Senior VicePresident of DOCOMO’s Communications Laboratories in Europe

Summary

The seminar covered the research and development trend of 5G in Europe
such as new European Technology Platform of communication network andservice in Horizon2020, 5G test bed, cooperation activities of Europe andJapan, etc.

No.1352 December 2015

Title

Study situation of Licensed Assisted Access - LTE (LAA-LTE)

Lecturetheme
andSpeaker(1) " Trend of LAA Standardization in 3GPP"
Satoshi Nagata, NTT DOCOMO, INC.
(2) "Technology of unlicensed bandwidth utilization in 3GPP (LAA 、
LTE-WLAN Aggregation)"
Masaaki Obara, KDDI Corporation(3) "Licensed Assisted Access -Evolving the Network"
Yoshio Honda, Ericsson Japan(4) "LAA-Overview"
Masakazu Shirota, Qualcomm Japan

Summary

The seminar covered the study situation of LAA in 3GPP, the study
situation of frequency band sharing with existing systems such as wireless
LAN and the stance against commercialization in foreign countries.

No.13622 December 2015

Title

Overview of 2015 World Radiocommunication Conference (WRC-15) Result

SpeakerMr. Takao Nitta
Director of International Frequency Policy Office, Ministry of Internal
Affairs and Communications

Summary

The seminar covered the overview of results in 2015 WorldRadiocommunication Conference (WRC-15) held on 2 to 27 November 2015
in Geneva, Switzerland.

14

DIGITAL MOBILE TELECOMMUNICATION SYSTEM
FOR LOCAL GOVERNMENT (SCPC/4FSK)(STD-T116 Ver.1.0)
This standard specifies narrow-band wireless digital mobile communication system using
4-level phase-shift keying as a 260MHz-band business-use mobile communication system

Time Code Format in the Interface for UHDTV Production Systems(STD-B68 Ver.1.0)
This standard specifies data structure and multiplexing method of timecode transmission
at the interface of studio equipment for the super high definition television (UHDTV)
signal.

In ARIB, in order to meet globalization, Standards and Technical Reports are beingtranslated to English sequentially according to the priority.

By the end of September 2015, translations of Standards and Technical Report listed
below had been completed. PDF files of these documents will be sequentially publishedin the ARIB web site.

[Field of Telecommunication]
STD-T48

Ver.2.1

MILLIMETER-WAVE RADAR EQUIPMENT FOR SPECIFIEDLOW POWER RADIO STATIONSTD-T91

Ver.2.0

UWB (ULTRA- WIDEBAND) RADIO SYSTEMSSTD-T106

Ver.1.0

920MHz-BAND RFID EQUIPMENT FOR PREMISES RADIOSTATION

STD-T107

Ver.1.0

920MHz-BAND RFID EQUIPMENT FOR SPECIFIED LOW
POWER RADIO STATIONSTD-T112

Ver.1.4

SPECIFIED RADIO MICROPHONE FOR LAND MOBILERADIO STATION （TV WHITE SPACE BAND, EXCLUSIVE
BAND, 1.2GHz BAND）[Field of Broadcasting]
STD-B44

Ver.2.0

TRANSMISSION SYSTEM FOR ADVANCED WIDE BAND
DIGITAL SATELLITE BROADCASTING

STD-B62

Ver.1.2

MULTIMEDIA CODING SPECIFICATION FOR DIGITAL
BROADCASTING (SECOND GENERATION)

TR-B33

Ver.2.3

OPERATIONAL GUIDELINES FOR TERRESTRIAL MOBILE
MULTIMEDIA BROADCASTING BY TRANSMISSIONSYSTEM BASED ON CONNECTED SEGMENTS FOR
VHF-HIGH BAND

15

Study for Telecommunication System
1. Radio utilization system for robots
Study Group on Radio utilization system for robots was established in November 2014
in order to grasp a wireless communication needs for robots, consider technicalconditions of telecommunication system and possibility of frequency sharing with othersystems and summarize the measures assisting smooth introduction of robots in various
fields based on the current status and utilization trend of disaster and industrial robots.
The 6th Study Group meeting had been held on 2 December 2015 in ARIB office.
This time, from ad hoc WG performing frequency sharing study with existing wirelesssystem (candidate frequency band : 2.4GHz and 5.7GHz), final report on the study
result of

frequency sharing conditions and draft of technical conditions had been

performed.
2. Private Wireless Communication
Study Group on Private Wireless Communication was established in April 2015 in orderto provide major players in private wireless communication field (governments,
manufacturers and users) with a place of gathering, investigate technologies and user
trends in Japan and oversees and consider sophistication of private wirelesscommunication.
The 2nd Study Group meeting was held on 23 July 2015.
In the meeting, presentations had been carried out by the Ministry of Internal Affairs
and Communications, "the Ministry of Land, Infrastructure and Transport", Tokyo
metropolitan government, Tokyo Electric Power, Safety communication working group ofJapan Gas Association and Nippon Television Network under the theme of "current
situation and problems of public private wireless communication". Exchange of views onservice function, configuration, operation management and problems of current private
wireless communication had been carried out actively.
In the next three years until March 2018, this Study Group will be held four times a
year.

16

R&D for Telecommunication System
1. Wireless LAN System
Wireless LAN System Development Group is aiming to conduct research anddevelopment for reliability improvement, sophistication of wireless LAN system andstandardization.
The 21st meeting was held on 19 August 2015.
The progress of the study on the "Up Link traffic surge in Station overcrowded
deployment environment" has been reported from the ad hoc Gr. Study and analysis of
the way for survey and measurement will be continued.
2. Advanced Wireless Communications Study Committee
The Advanced Wireless Communications Study Committee (ADWICS) was establishedin ARIB on 1 April 2006. Cooperating with other related international/domestic bodies,
the Committee conducts technical studies on Advanced Wireless Communications
Systems and contributes to their international standardization in the following four
subcommittees and one AdHoc.
・Mobile Partnership Subcommittee
・Standardization Subcommittee
・Broadband Wireless Access Subcommittee
・Mobile Commerce Subcommittee
・2020 and Beyond AdHoc(1) Mobile partnership subcommittee
This Subcommittee contributes to the international standardization of IMT and M2M
and the transposition to standards in Japan through the contribution and theparticipation in 3GPP, 3GPP2 and oneM2M.
On 30 September 2015, revised drafts of following ARIB Standards and Technical
Report were proposed to the Standard Assembly and approved.
· ARIB STD-T63

IMT-2000 DS-CDMA and TDD-CDMA System· ARIB TR-T12

IMT-2000 DS-CDMA and TDD-CDMA System· ARIB STD-T104

LTE-Advanced System ARIB STANDARD(2) Standardization Subcommittee
This Subcommittee conducts technical study on IMT-Advanced and Future IMT
17

service and promotes its standardization through the contributions to ITU and otheractivities.
The 14th meeting of the subcommittee was held 6 August 2015. During the meeting,results of the 22nd meeting of the ITU-R Working Party 5D (WP5D) (10 - 18 June
2015: San Diego, U.S.A.) were reported and action policy and draft contributions forthe 23rd WP5D meeting were discussed.
(3) Mobile-Commerce Subcommittee
This Subcommittee conducts technical studies on Mobile Commerce and promotes its
standardization. In this Subcommittee, technical expert committee and propulsion
expert committee have been set up.
The 50th and 51st technical expert committee meetings were held on 28 August and
18 September 2015. During the meetings, the following subjects on promotion andimprovement of mobile public key infrastructure (PKI) were discussed.
・Access to e-government, etc. from a mobile phone
・Methods for mounting a public personal authentication certificate to a mobile phone
The propulsion expert subcommittee dealt with the following:.
・Development of voucher profile using NFC
・Overseas inspection and NFC related market research・Held study group meeting on mobile commerce

Study for Broadcasting System
Quality Evaluation Method for Broadcasting(1) Evaluation Sequence
With a view to providing reference video image (4K・8K) for UHDTV, the issues werediscussed in cooperation with the Institute of Image Information and Television
Engineers (ITE). As a first step, a suitable material as UHDTV standard video image
will be selected from the existing full resolution 8K material, and distributed them.
And as a second stage, creation of the new video for standard video image ispreparing.
(2) Sound Quality Evaluation
As for the subjective quality evaluation methods of the advanced sound systems,
revised draft of ITU-R Recommendation BS.1116 to append a note on the18

measurement error due to the installation direction of the measurement microphone
at the sound adjustment is approved. As the next step, the specific sound adjustment
method for reducing measurement error was studied, and creating a new report isunder discussing.

R&D for Broadcasting System
1 Digital Broadcasting Systems
Amendments of ARIB standards were deliberated. Following revised ARIB standards
were deliberated.
1. ARIB STD-B10 (Service Information for Digital Broadcasting System) V5.6
2. ARIB STD-B32 (Video Coding, Audio Coding and Multiplexing Specifications for
Digital Broadcasting) V3.4
3. ARIB STD-B46 (Transmission System for Terrestrial Mobile Multimedia
Broadcasting based on Connected Segment Transmission) V2.2
4. ARIB STD-B53 (Receiver for Terrestrial Mobile Multimedia Broadcasting Based onConnected Segment Transmission) V2.3
5. ARIB STD-B60 (MMT Based Media Transport Scheme in Digital Broadcasting
Systems) V1.4
6. ARIB STD-B63 (Receiver for Advanced Wide Band Digital Satellite Broadcasting)
V1.3
The Standard Assembly has approved the above six revised standards.
(1) Multiplexing Technology
Each revision of ARIB STD-B10 V5.6, ARIB STD-B32 V3.4 and ARIB STD-B60 V1.4
were drafted.
In ARIB STD-B10, PID (Packet Identifier) and the allocation of descriptor tag value
based on notification of the Ministry of Internal Affairs and Communications andstandard of the Japan CATV Technology Association regarding advanced scheme of
CATV were added.
In ARIB STD-B32, "bridged frame" as the packet type to be transmitted in the
ULE(Unidirectional Lightweight Encapsulation) packet was added.
In ARIB STD-B60, in response to study request from the Next Generation Television
and Broadcasting Promotion Forum (NexTV-F) that is considering operationalguidelines, a leap second indicator to the descriptor was added and the control
information for the application transmission scheme was modified.
In addition, introduction of high dynamic range (HDR) video system to UHDTV isbeing studied, and revision of the ARIB STD-B10 and ARIB STD-B60 are being
discussed.
19

(2) Video Coding Technology
Introduction of high dynamic range (HDR) video system to UHDTV is studied, andrevision of the ARIB STD-B32 is discussed.
(3) Data Coding Technology
In response to study request on leap second from the Next Generation Television andBroadcasting Promotion Forum (NexTV-F), revision of the ARIB STD-B60 that definestransmission of subtitles using MMT and the ARIB STD-B24 that defines datatransmission using the TS were discussed.
Revision of the ARIB STD-B60 has drafted in conjunction with Multiplexing
Technology Working Group. Revision of the ARIB STD-B24 was decided to propose to
The Standard Assembly after next.
(4) Data Broadcasting
ARIB

STD-B24(Data

CodingandTransmission

Specification

for

DigitalBroadcasting) was discussed to add the external application control descriptor and therecording and playback-related descriptors to the application control scheme.
The English translated version of ARIB STD-B62 1.2 (Multimedia CodingSpecification for Digital Broadcasting <2nd Generation>) was reviewed.
(5) Access control technology / Rights protection
ARIB STD-B61 (Conditional Access System <2nd Generation> and CAS Program
Download System Specifications for Digital Broadcasting) is studied to add theprovisions of the CAS IC chip to be applied to UHDTV.
Revised ARIB STD-B61 will be proposed to the next Standard Assembly.
(6) Receiver for Digital Broadcasting
In response to the revision of the Ministry of Internal Affairs and Communications
notification, the amendment to add a reception center frequency to "Receiver for
Terrestrial

MobileMultimedia

Broadcasting

Based

on

Connected

Segment

Transmission to be applied to V-Low" of ARIB STD-B53 was discussed .
*V-Low：Terrestrial Mobile Multimedia Broadcasting by Transmission System Basedon Connected Segments for VHF-Low BandThe downloading supplemental provisions of the receiver common data of ARIB
STD-B63 were discussed to add the provisions of the data structure of a still image
logo data and the provisions for updating of data.

20

Intermodulation of the optical transmitter, image rejection ratio of the converter andlocal oscillator leakage level of the converter, which should be defined in
ARIBSTD-B63, were studied and evaluation experiments were conducted.
(7) Terrestrial Broadcasting Transmission System
In response to the revision of the Ministry of Internal Affairs and Communications
Notification, if there is interference or a possibility of interference at the frequencyof the V-Low multimedia broadcasting, ARIB STD-B46 was discussed to add afrequency that can be used in order to avoid them.

2 Program Production Systems(1) Video Program Production Systems
The color gamut inclusion rate calculation method (technical report) for the display of
UHDTV program production was proposed and discussed. Draft of technical reportwill continue to further study.
Furthermore, consideration of the signal level such as tickers and subtitles in HDR
broadcasting, requested from the video coding WG, was exchanged opinions.
(2) Sound Program Production Systems
1. Extension of loudness measurement method
Substantially along the Japanese proposal, collateral of fully compatible less than
5.1ch has been agreed and expected to be recommended in ITU-R meeting. In
response to this, the revision of TR-B32, Operational Guidelines for Loudness ofDigital Television Programs, will be proposed to the next Standard Assembly.
2. Study items on the ITU-R SG6
For major issues in ITU-R SG6 block meeting, took place in July, there was acooperation request from the international broadcasting standardization WG, thefollowing items of the deal policy were discussed.
・Audio metadata and audio file format
・Signaling requirements of compliant of Loudness
・Sound program distribution and playback adapted to the transmission system forsound program contribution
・specification modification of channel-based advanced sound system21

(3) Interface between Program Production Equipment
The discussion about the time code format of Interface between UHDTV studioequipment had done.
The creation of guideline for interconnection of camera and lens for UHDTV(Technical Report) is being studied. Between camera manufacturers and lens maker of
4K・8K, they held a workshop aimed at formulating guidelines, and discussed base onthat results.
Drafted ARIB Technical Report will be proposed to the Standard Assembly after next.
(4) Digital Closed caption Production
The conversion from digital subtitles to ARIB-TTML subtitles (recommended) was
proceeded to discuss.
The details of various items related to the conversion to the ARIB-TTML (target,
display position, character coding, character size, display partition, format, exchangesystem) are being discussed. Drafted ARIB Guideline will be proposed to the Standard
Assembly after next.
(5) Program Material File Format
Since 4K・8K road map has been clear, whether there is a theme to be discussed in thisworking group with respect to the 4K program file format and heard the opinions ofeach member. After organizing gathered opinions, WG will proceed to discuss andstandardized.

3 Transmission of Television Program Contribution(1) SNG Transmission System
Experiment policies and experimental items were studied with a view to revision ofadding a DVB-S2X standard to ARIB STD-B26 (HDTV digital SNG transmission
systems).
Since the results of development status of the modulator-demodulator, the prospect ofsatellite communication experiments will be later next spring, so that WG willconsider whether translator folded confirmation test can be done by using themodulator only at an early stage. In addition, a study about the feasibility ofexperimental items will be discussed.

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