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Meeting information summary outlining the status of studies, reports, recommendations, and coordination activities of ITU-R Working Party 5D related to IMT systems and WRC-27 agenda items following the October 2025 WP 5D meeting in Geneva.
Document code:
ECC PT1(26)004
Working group:
ECC PT1
Meeting:
ECC PT1 #83
Location of meeting:
Valencia, Spain and online
Meeting dates:
12–16 January 2026
Date issued:
14 November 2025
Source:
WP 5D Rapporteur
Subject:
ITU-R WP 5D issues
Organization:
International Telecommunication Union Radiocommunication Sector (ITU-R)
Related working party:
ITU-R WP 5D
Referenced meeting:
50th ITU-R WP 5D meeting
Referenced meeting location:
Geneva, Switzerland
Referenced meeting dates:
7–16 October 2025
Related conference:
World Radiocommunication Conference 2027 (WRC-27)
Agenda items referenced:
WRC-27 agenda items 1.7 and 1.13
Main topics:
IMT spectrum identification, sharing and compatibility studies, IMT-2030 technical requirements, radio interface evaluation, unwanted emissions, coordination between services
Document type:
meeting information summary
Audience:
ECC PT1 participants and stakeholders involved in spectrum management and IMT studies
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Year:
2021
Region / City:
Online
Theme:
Video coding, Standards development
Document Type:
Report
Organization / Institution:
ITU-T, ISO/IEC
Author:
Gary Sullivan, Jens-Rainer Ohm
Target Audience:
Video coding professionals, Technical experts in video standards
Period of Action:
July 2021
Approval Date:
Not specified
Date of Changes:
Not specified
Contextual Description:
A report detailing the activities and discussions during the 23rd meeting of the Joint Video Experts Team (JVET), held virtually in July 2021, focused on the development of video coding technologies and related standards.
Year:
2013
Region / City:
CEPT
Subject:
Spectrum management
Document Type:
Work Program
Institution:
ECC
Author:
M. Kraemer
Target Audience:
Administrations
Period of validity:
May 2013 – July 2015
Approval Date:
May 2013
Amendment Date:
Not specified
Year:
2021
Region / city:
Online
Topic:
Spectrum management, ITU-R, WRC-23
Document Type:
Meeting minutes
Organization / institution:
ECC PT1
Author:
Steve Green, Christoph Hildebrand, Branimir Stantchev, Michael Krämer
Target audience:
ECC PT1 members, stakeholders in spectrum management
Period of validity:
April 2021 - ongoing
Date of approval:
14 May 2021
Date of changes:
N/A
Year:
2021
Region / city:
Online
Subject:
Minutes of the 67th ECC PT1 meeting
Document type:
Meeting minutes
Organization / institution:
ECC PT1
Author:
Steve Green (Chairman)
Target audience:
ECC PT1 members and stakeholders
Period of validity:
January 2021
Approval date:
5 February 2021
Date of changes:
N/A
Date:
04 June 2025
Source:
ECC PT1 Chair
Subject:
ECC PT1 progress report
Summary:
This report provides information on the progress of ECC PT1 since the last CPG meeting and includes outputs for approval.
Proposals:
CPG27-3 is invited to consider the following output from ECC PT1:
Note:
WRC-23 Agenda item 1.7 – IMT 4.4, 7, 8 & 15 GHz Draft CEPT Brief
Year:
2025
Region / City:
Groningen, Netherlands (Hybrid)
Topic:
Telecommunications, WRC-27, IMT bands
Document Type:
Progress Report
Institution:
ECC PT1
Author:
ECC PT1 Chair
Target Audience:
CPG27-3 Participants, Telecommunications Stakeholders
Period of Validity:
10-13 June 2025
Approval Date:
04 June 2025
Modification Date:
None
Date issued:
9 February 2024
Subject:
Reply LS to ECC PT1 on suitable WAS/RLAN parameters to be used for the feasibility study of shared use of the 6425-7125 MHz frequency band by MFCN and WAS/RLAN to be conducted under Work item PT1_50
To:
Mr. Steve Green, ECC PT1 Chairman
E-mail:
[email protected]
Cc:
Mr. Jérôme André, ECC WG SE Chairman
Year:
2024
Region / City:
Not specified
Topic:
Wireless communications, frequency band sharing
Document Type:
Liaison Statement
Organization / Institution:
ECC PT1, SE45
Author:
Dr Ivica Stevanovic
Target Audience:
ECC PT1 members, wireless communication experts
Effective Period:
Not specified
Approval Date:
9 February 2024
Date of Changes:
Not specified
Date issued:
21 April 2025
Source:
Nokia Corporation
Subject:
Revision of study C9 – Annex
Year:
2025
Region / City:
Copenhagen, Denmark
Topic:
Coexistence between macrocellular MFCN system and WAS/RLAN system
Document Type:
Technical Report
Organization:
ECC
Author:
Nokia Corporation
Target Audience:
Technical experts, industry professionals
Period of validity:
Not specified
Approval Date:
21 April 2025
Modification Date:
Not specified
Year:
2023
Date issued:
19 June 2023
Organization:
ECC PT1 (Electronic Communications Committee Project Team 1)
Source:
ANFR
Country submitting proposal:
France
Document identifier:
ECC PT1(23)144
Subject:
Impact of IMT/5G base station emissions on aircraft radio altimeters
Frequency bands considered:
3.4–3.8 GHz (MFCN) and 3.8–4.2 GHz (WBB LMP)
Usage category considered:
UC1 radio altimeters for civil aviation CAT III automatic landing operations
Technical focus:
Interference assessment, coexistence studies, protection criteria for radio altimeters
Methodology elements:
Scenario definition, base station parameters, antenna patterns, protection criteria and assumptions
Study scenario:
Aircraft landing trajectory near airport runway with nearby 5G base station and user equipment
Propagation model:
Free-space path loss (ITU-R P.525-4)
Protection criteria sources:
RTCA and AVSI reports
Research phases proposed:
Phase 1 – coexistence conditions with existing radio altimeters; Phase 2 – coexistence with future radio altimeter parameters
Target audience:
ECC PT1 participants, spectrum regulators, aviation and telecommunications technical experts
Year:
2026
Region / City:
Valencia, Spain and online
Subject:
List of ECC Decisions for review by PT1
Document Type:
Decision Review
Organization:
ECC PT1
Author:
ECO
Target Audience:
Members of PT1
Period of Validity:
Until 2026
Date Approved:
6 January 2026
Date of Changes:
N/A
Context:
Document includes a review of multiple ECC and ERC Decisions, listing their current status, revision needs, and action items for further evaluation by PT1.
Year:
2017
Location:
Sophia Antipolis, France
Date issued:
6 December 2017
Subject:
Synchronisation of MFCN in 3400–3800 MHz
Frequency band:
3400–3800 MHz
Document type:
Technical contribution / discussion paper
Source organization:
Qualcomm
Forum / working group:
ECC PT1
Meeting:
ECC PT1 #57
Related regulatory reference:
ECC Decision (11)06
Technologies referenced:
LTE; 5G NR; TDD networks; AAS base stations
Key topics:
network synchronisation; interference management; emission limits; band planning; regulatory framework
Geographical scope:
Europe
Stakeholders:
national administrations; mobile network operators; CEPT working groups
Consultation context:
public consultation on synchronisation and emission limits
Policy consideration:
decision on synchronisation framework at national level
Year:
2026
Location:
Valencia, Spain and online
Subject:
Satellite signal monitoring and pfd measurement
Document type:
Technical report
Issuing organizations:
BT plc, Deutsche Telekom AG, Orange, Rohde & Schwarz, Telefonica S.A., Vodafone Group plc
Target audience:
ECC PT1 members, WRC-27 AI1.13 stakeholders, EC D2D mandate participants
Period covered:
January 2026
Date issued:
5 January 2026
Frequency bands analyzed:
700–2600 MHz
Key technical focus:
D2D-IMT satellite signals, PFD limits, IMT terrestrial network protection
Measurement methods:
Field measurement, test UE visualization, aggregation factors analysis
Coordination with:
SE40, 3GPP TS38.104 references
Year:
2022
Region / City:
Geneva
Topic:
Transport - Vehicle Regulations
Document Type:
Draft Agenda
Organization / Institution:
United Nations Economic Commission for Europe (UNECE)
Author:
EPPR IWG Secretariat
Target Audience:
EPPR Working Group Members
Period of Validity:
March 2022
Approval Date:
Not provided
Date of Changes:
Not provided
Year:
2023
Region / city:
Brussels
Subject:
Chemicals, Classification, and Labelling
Document Type:
Meeting Record
Organ / institution:
European Commission
Author:
Directorate-General for Environment, Directorate-General for Internal Market, Industry, Entrepreneurship and SMEs
Target audience:
Competent Authorities for REACH and CLP
Period of validity:
06/03/2024
Approval date:
06/03/2024
Date of changes:
N/A
Contextual description:
A record of the 50th meeting of the Competent Authorities for REACH and CLP, discussing updates on the Globally Harmonized System, ongoing work on new hazard classes, and the implementation of GHS revisions.
Year:
2025
Region / City:
Online
Topic:
IWG-EMC meeting agenda and proposals
Document Type:
Meeting agenda
Organization / Institution:
IWG-EMC
Author:
Zissis Tsakiridis, J.M. Prigent
Target Audience:
IWG-EMC participants, industry stakeholders
Effective Period:
December 2025
Approval Date:
Not provided
Amendment Date:
Not provided
50th session of the GRBP Informal Working Group on Wet Grip on Worn Tyres (WGWT), February 20th 2023
Year:
2023
Region / City:
Geneva
Topic:
Wet Grip on Worn Tyres
Document Type:
Meeting Minutes
Organization / Institution:
UNECE (United Nations Economic Commission for Europe)
Author:
WGWT (Working Group on Wet Grip on Worn Tyres)
Target Audience:
Vehicle safety professionals, regulatory bodies, tyre manufacturers
Period of Effectiveness:
February 20th, 2023
Approval Date:
February 20th, 2023
Modification Date:
N/A
Year:
2022
Region / City:
Geneva
Subject:
Transport, Vehicle Regulations, Durability, GTR2
Document Type:
Meeting Report
Organ / Institution:
UNECE
Author:
EPPR IWG
Target Audience:
Experts and Stakeholders in Vehicle Regulations
Period of Validity:
March 2022
Approval Date:
15 March 2022
Date of Changes:
15 March 2022
Contextual Description:
Document is a report on the 50th EPPR Informal Working Group Meeting, discussing various aspects of vehicle regulations and related technical documents.
Year:
2018
Region / City:
Hawaii
Topic:
Fair Housing
Document Type:
Proclamation
Organization / Institution:
Hawaii Civil Rights Commission
Author:
Governor David Y. Ige
Target Audience:
Citizens, agencies, and institutions in Hawaii
Period of Validity:
April 2018
Approval Date:
April 13, 2018
Amendment Date:
N/A
Year:
2025
Region / City:
Not specified
Topic:
Matrimonial Meeting
Document Type:
Event Schedule
Organ / Institution:
ICNA
Author:
Not specified
Target Audience:
Male and female applicants for matrimonial event
Period of Validity:
May 24-26, 2025
Approval Date:
Not specified
Modification Date:
Not specified
Year:
2022
Region / City:
Geneva
Document Type:
Concept Note
Organization / Institution:
United Nations Human Rights Council
Author:
United Nations Human Rights Council
Target Audience:
Member States, International Organizations, Human Rights Advocates, General Public
Period of Validity:
27 June 2022
Approval Date:
15 June 2022
Date of Changes:
N/A
Year:
2014
Organization:
Phi Mu Sorority
Event Type:
Anniversary Celebration
Location:
University of North Carolina, Chapel Hill, NC, USA
Target Audience:
Alumnae, Collegiate Members, VIPs
Schedule:
Welcome Tea, BBQ, Homecoming Brunch, Carnation Ball, Farewell Brunch
Key Speakers:
Debra Pickrel, Beth Monnin, Desiree Carlson, Caitlyn Balsay, Taylor Brundage, Denise Satterfield, Jordan Forrest, Monica McCarty
Performers:
Clef Hangers, Loreleis
Special Ceremonies:
Memorial Service, Historic Plaque Ceremony
Document Type:
Event Program