August 2020No.0026<< Contents >>- The 9th Study Group Meeting on Terahertz wave utilizations for sensing- The 4th Study Group Meeting on Weather radar- The 58th CJK IMT Working Group Meeting- 5GMF (The Fifth Generation Mobile Communications Promotion Forum) won the2020 “Radio Day” Minister of Internal Affairs and Communications Award- The 24th General Assembly of Electromagnetic Environment Committee and Briefing
session on contracted researches- The 31st Radio Achievement AwardThe 9th Study Group Meeting on Terahertz wave utilizations for sensing
The Study Group has conducted extensive research on development issues, frequencyrequirements, institutional issues, to put the terahertz wave utilization system to practicaluse, aiming to clarify the applications expected in the sensing field.
The 9th meeting was held from 26 to 31 March by way of e-mail deliberation to prevent
Coronavirus infection. The report “Terahertz Study Group Report - Sensing”, whichsummarizes the results of the research on the use cases of THz-TDS (Time Domain
Spectroscopy), camera and radar, which are the main technologies of terahertz sensing,
was unanimously approved.
The Study Group, which was established in February 2018, has been completed withpublication of two reports: on telecommunication in April 2019 and on sensing in March2020.

1The 4th Study Group Meeting on Weather Radar
The 4th meeting of the Meteorological Radar Study Group was held as a web conferencewith 21 participants from the member companies of the Society, the Ministry of Internal
Affairs and Communications (MIC), the Ministry of Land, Infrastructure and Transport,
and from others.
At the 4th meeting, MIC (Deputy Director Mr. Tanada) presented the study results offrequency sharing with coastal surveillance radar (interference) and the survey results ofneeds for 9.7 GHz band general-purpose radar. Toshiba clarified DFS (Dynamic FrequencySelection) technical conformance test for C band radar.
Based on the above results, it was agreed on the following aspects.
(1) There is almost no problem of interference with coastal surveillance radar.
(2) Regarding the interference between the 9.7 GHz band general-purpose radar and thehigh-performance weather radar, it is possible to assign frequencies to the former by
allowing interference on the latter.
(3) Consensus was reached on the proposed test conditions for the DFS technicalconformance test.
As conclusion had been reached on the agenda items, the Meteorological Radar Study
Group was concluded at this meeting.

The 58th CJK IMT Working Group MeetingCJK IMT Working Group Meeting is aiming to exchange information and views about theactivities of international IMT standardizations in ITU-R, APT, 3GPPs, and so on, among
members of SDOs in China, Korea, and Japan.
1. Outline of the meeting
Schedule

20 and 21 May 2020
(Web Meeting)

Venue* Though it was the first time for the IMT WG to be held online inorder to avoid COVID-19, discussion was as active as usual.

Participants

ARIB (Japan) 12, CCSA (China) 32, TTA (Korea) 14

2. Main results(1) The results of the 34th ITU-R SG5 WP5D meeting held in January 2020 and therecent discussions at 3GPP were shared.
(2) The information was shared on the contribution to be input regarding
frequency-related issues.
(3) Opinions on IMT-2020 radio interface recommendations were exchanged, and it wasagreed on that the WG would continue working for the joint contribution.
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(4) As a result of reviewing the organization, the SIG-Future-IMT which studies thelatest technology for the future, and SIG-Verticals which studies expansion of IMT
use in various industrial fields were decided to be established.
3. Next meeting schedule
The next CJK IMT Working Group Meeting would be scheduled in August 2020 in
China but might be held online.

5GMF won the 2020 “Radio Day” Minister of Internal Affairs
and Communications Award
5GMF (The Fifth Generation Mobile Communications Promotion Forum) for which ARIB
serves as a secretariat was awarded by MIC as an organization that had contributed to thedevelopment of ICT on the 70th "Radio wave day" (1 June 2020) in Japan.
Activities for over the past five years since its establishment in September 2014 towardsmooth introduction of the 5G system in Japan, such as collaboration with industry,
academia and government to implement 5G system, studies of technological trends,
standardization and promotion of many programs including international collaboration incoordination with MIC's policy, were highly appreciated.

The 24th General Assembly of Electromagnetic Environment Committee
and Briefing session on contracted researches
The 24th General Assembly of Electromagnetic Environment Committee (EEC) was held
online on 4 June 2020, where business / financial report was accepted and business /financial plan for the next fiscal year was approved. Following the General Assembly,
briefing session on contracted researches from EEC was also held also online. The titles
and reporters of the briefing were as follows.
Contractor

Title of briefing

1Prof. Tomonori Sakurai:
Gifu Pharmaceutical University

Assessment of the effects of radio exposure
on Alzheimer disease2

Prof. Yoshikazu Ugawa:
Fukushima Medical University

Study on the influence of LTE on event
related potential using human auditory
stimulation

Assistant Prof. Setsu Enomoto:
Teikyo Heisei University

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The 31st Radio Achievement AwardThe 31st Radio Achievement Award was released on 24 June 2020. This award ispresented every year by the MIC and the Chairman of the Board of ARIB to individuals
and groups who have made a significant achievement relating to effective and proper useof radio wave.
The award ceremony which is held in late June every year on the same day with the annual
general meeting of ARIB was canceled this year, because the general meeting was postponed
to September due to the spread of Coronavirus infection. The winners were individuallyawarded.
This year’s winners are as follows.
1. The Award of the Minister of Internal Affairs and Communications(1) Development and commercialization of 5th generation mobile communication system(5G)
NTT DOCOMO, INC., KDDI CORPORATION, SoftBank Corp.
(2) Research and development of Mobile Field-Pickup-Unit for 4K/8K UHDTV ProgramNHK (Japan Broadcasting Corporation)(3) Promotion of 5.2GHz band wireless LAN outdoor use and implementation at theNational Stadium
NTT Broadband Platform, Inc., NIPPON TELEGRAPH AND TELEPHONECORPORATION, Panasonic Corporation
2. The Award of the Chairman of the Board of ARIB
(1) Practical application and international standardization of "Time / three-dimensional
spatial propagation estimation method" for ultra-high speed / broadband mobilecommunications
SoftBank Corp., Tokyo Institute of Technology(2) Promotion of frequency sharing associated with 700MHz band usage termination
measures
Association of 700MHz Frequency Promotion, SoftBank Corp., NTT DOCOMO,
INC., KDDI CORPORATION(3) Commercialization and promotion of emergency personal receivers complied with theFire Agency guidelines
Hitachi Kokusai Electric Inc.
(4) Development of glass antenna of buildings and cars for mobile telecommunication
NTT DOCOMO, INC., AGC Inc.
(5) Development of on-board mobile communication system for helicopter and drone
KDDI CORPORATION

ARIB SEASON
Publishing

1-4-1 Kasumigaseki, Chiyoda-ku, Tokyo 100-0013 JAPANhttps://www.arib.or.jp/english/
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