№ files_lp_3_process_7_088013
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Record of technical discussion and company positions within 3GPP RAN1 on proposals to include NR NTN uplink time and frequency synchronization agreements into TR 36.763 for IoT NTN during the Study Item phase.
Year:
2021
Meeting:
3GPP TSG RAN WG1 Meeting #104e
Agenda Item:
8.15.2
Date:
January 25 – February 5, 2021
Source:
Moderator (MediaTek)
Document Number:
R1-210XXXX
Title:
Summary #3 of AI 8.15.2 Enhancements to Time and Frequency Synchronization
Document For:
Discussion and Decision
Study Item:
IoT Non Terrestrial Network (NTN)
Related Work Item:
NR NTN
Referenced Reports:
TR 36.763, TR 38.821
Technical Scope:
Uplink timing advance and frequency synchronization for IoT NTN
Contributing Companies:
ZTE, Huawei, Qualcomm, Spreadtrum, Lenovo, MotoM, CATT, vivo, Nokia, NSB, Ericsson, Xiaomi, MediaTek, Sony, APT, OPPO, Intel, Asia Pacific Telecom, CMCC, Samsung, Apple, Interdigital
Key Topics:
GNSS-based pre-compensation, Doppler shift mitigation, timing advance calculation, RRC states applicability, reuse of NR NTN agreements
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Year:
2021
Organization:
3GPP TSG RAN WG1
Document type:
Meeting report
Subject:
HARQ enhancements and scheduling in NTN scenarios
Author:
Moderator (ZTE)
Participating companies:
OPPO, Huawei, Intel, Lenovo, Panasonic, Xiaomi, Qualcomm, CATT, ZTE, MTK, Spreadtrum, China Telecom, ETRI, Apple, vivo, LG, Ericsson, APT, InterDigital, CMCC, Samsung, Nokia, Sony
Target audience:
3GPP members and participating companies
Meeting dates:
January 25 – February 5, 2021
Agenda item:
8.4.3
Key topics:
Enhanced HARQ process ID indication, HARQ codebook enhancements, PDSCH/PUSCH scheduling restrictions, HARQ feedback restrictions, performance enhancements
Decisions and proposals:
Options for DCI formats 0-0/1-0, 0-1/1-1, 0-2/1-2 and recommended majority views on HARQ process ID field enhancements
Appendices:
Detailed proposals and company-specific positions
Year:
2021
Note:
Region / City
Topic:
IoT NTN Timing Relationships
Document Type:
Meeting Agenda
Organ / Institution:
3GPP
Author:
Moderator (Sony)
Target Audience:
Industry professionals, engineers working on IoT NTN
Period of Action:
November 2021
Date of Approval:
November 2021
Year:
2021
Period:
January 25 – February 5
Organization:
3GPP TSG RAN WG1
Document Type:
Technical report / meeting summary
Source:
Moderator (MediaTek)
Agenda Item:
8.4.3
Audience:
Discussion and Decision participants
Focus:
UL synchronization and GNSS-assisted pre-compensation in IoT NTN
Related Documents:
TR 36.763, TR 38.821, NR NTN agreements
Year:
2021
Event:
3GPP TSG RAN WG1#106-e
Agenda Item:
8.15.2
Source:
Moderator (Sony)
Type of document:
Feature Lead summary
Scope:
IoT-NTN timing relationship enhancements
Standards reference:
TR 36.763
Target technologies:
NB-IoT, eMTC
Discussion dates:
August 16-27, 2021
Deadline for company contributions:
August 17, 2021, 18:00 UTC
Purpose:
Analysis of contributions and proposals on timing relationships
Companies involved:
Sony, Huawei, and others
Year:
2021
Region / City:
Global
Topic:
Time and frequency synchronization
Document Type:
Meeting Report
Organization:
3GPP TSG RAN WG1
Author:
Moderator (MediaTek)
Target Audience:
Industry professionals, IoT NTN stakeholders
Period of Validity:
Ongoing
Approval Date:
Not specified
Date of Changes:
Not specified
Date:
2025-11-03
Note:
Author(s)
Year:
2025
Region / city:
Global
Topic:
Wireless LAN standards
Document type:
Draft specification
Organization / institution:
IEEE
Author:
Multiple authors from different companies
Target audience:
Engineers and researchers in wireless communications
Period of validity:
N/A
Approval date:
N/A
Amendment date:
N/A
Note:
Year
Year:
2025
Note:
Region / City
Topic:
Wireless LANs, NPCA synchronization
Document Type:
Technical standard
Institution:
IEEE
Author:
Seongho Byeon, Salvatore Talarico, Dongju Cha, Zhenpeng Shi, Juseong Moon, Inaki Val, Shubhodeep Adhikari, Matthew Fischer, Ning Gao, Xiaofei Wang, Kaiying Lu
Target Audience:
Engineers, Standards Committee Members, Wireless Communication Researchers
Context:
A technical document that outlines resolutions for comment IDs related to NPCA synchronization mechanisms in wireless LAN standards.
Year:
2016
Note:
Region / City
Theme:
Clock Synchronization
Document Type:
Technical Standard
Organization / Institution:
LXI Consortium
Target Audience:
Developers, Engineers, and Technical Experts
Approval Date:
8 November 2016
Year:
2021
Region / City:
West Lafayette
Topic:
Educational Technology
Document Type:
User Guide
Institution:
Purdue University
Author:
ITAP
Target Audience:
Faculty, Course Administrators
Effective Period:
Not specified
Approval Date:
6/18/2021
Modification Date:
Not specified
Year:
2021
Period:
January 25 – February 5
Organization:
3GPP TSG RAN WG1
Document Type:
Technical report / meeting summary
Source:
Moderator (MediaTek)
Agenda Item:
8.4.3
Audience:
Discussion and Decision participants
Focus:
UL synchronization and GNSS-assisted pre-compensation in IoT NTN
Related Documents:
TR 36.763, TR 38.821, NR NTN agreements
Year:
2020
Note:
Region / city
Topic:
Time and frequency synchronization, NR NTN
Document type:
Meeting agenda
Organization / institution:
3GPP TSG-RAN WG1
Author:
Thales
Target audience:
Participants of 3GPP TSG-RAN WG1
Year:
2020
Event:
TSG-RAN WG1 Meeting #102-e
Topic:
UL time and frequency synchronization for NR NTN
Document type:
Technical contribution / meeting report
Organization:
3GPP
Author:
Thales (moderator)
Contributors:
MediaTek, CATT, Ericsson, InterDigital, CMCC, ZTE, Apple, CAICT, Sony, LG Electronics
Target audience:
3GPP RAN1 working group members
Agenda item:
8.4.2
Sections:
Clarification on UE capability; UL timing synchronization; UL frequency synchronization; Serving satellite ephemeris; References
Scope:
NR NTN Rel-17 solutions
Date of meeting:
August 17–28, 2020
Year:
2026
Region / City:
Malibu, CA
Theme:
Traffic safety, technology, public works
Document type:
Press release
Organization / Institution:
City of Malibu
Author:
Matt Myerhoff
Target audience:
General public, residents, traffic safety advocates
Action date:
February 4, 2026
Date of approval:
January 14, 2026
Date of changes:
N/A
Budget:
$19.1 million
Partners involved:
Caltrans, Los Angeles County
Description:
Press release announcing the completion of a signal synchronization project aimed at improving traffic safety and mobility on Pacific Coast Highway (PCH) in Malibu, part of ongoing efforts to enhance PCH safety.
Year:
2019
Region / City:
Global
Subject:
Data synchronization in the context of Chinese import customs declarations
Document Type:
Implementation Guide
Author:
GS1 China, GAC
Target Audience:
Importers, suppliers, manufacturers, and brand owners exporting goods to China
Effective Period:
From July 1, 2018
Approval Date:
August 2019
Revision Date:
September 2019
Year:
2018
Location:
Lisbon, Portugal
Subject:
5G MFCN spectrum synchronization
Document type:
Plenary contribution / Technical proposal
Organization:
European Communications Committee (ECC), CEPT
Author:
GSA
Intended audience:
ECC PT1 members, national administrations
Date issued:
15 February 2018
Period covered:
27 February – 2 March 2018
References:
ECC Report “Analysis of the suitability of the regulatory technical conditions for 5G MFCN operation in the 3400-3800 MHz band”; CEPT Report A to the European Commission
Year:
2026
Region / City:
Global
Subject:
Data Synchronization, GS1 Standards, GDSN
Document Type:
Guidance / FAQ
Organization / Institution:
Acxion
Author:
Acxion Data Management Team
Target Audience:
Manufacturers, Suppliers, Private Label Suppliers, Third-Party Suppliers
Effective Period:
2026
Approval Date:
2026-03-01
Related Standards:
GS1 Global Data Synchronization Network (GDSN), Global Trade Item Number (GTIN), Global Location Number (GLN), Global Product Classification (GPC)
XML Serialization of Synchronization Knowledge (MS-XSSK) Open Specifications Technical Documentation
Year:
2009–2016
Document Identifier:
MS-XSSK
Subject Area:
Data synchronization; XML data serialization; protocol structures
Document Type:
Technical specification
Organization:
Microsoft
Publisher:
Microsoft
Series:
Microsoft Open Specifications
Initial Release Date:
July 13, 2009
Latest Revision Date:
May 10, 2016
Revision History:
Versions 0.1–2.0 with major, minor, and editorial updates
Technology Domain:
Data portability and synchronization protocols
Format:
XML schema specification
Applicable Technologies:
Synchronization knowledge representation and data replication systems
Related Standards:
XML schema and network programming standards
Intended Audience:
Software developers and system architects implementing synchronization technologies
Year:
2021
Region / City:
Fort Huachuca, AZ
Subject:
Military contracts, construction, and information technology services
Document Type:
Contract Requirement Description
Organization / Institution:
United States Army
Author:
Not specified
Target Audience:
Government contracting entities
Validity Period:
2021-2025 (Projected)
Approval Date:
January 2021
Amendment Date:
None provided
Year:
2015
Region / City:
Asia-Pacific, Kyoto, Japan
Topic:
Network Synchronization Technologies in Radio Access Networks for IMT TDD Systems
Document Type:
Report
Organization / Institution:
APT Wireless Group (AWG)
Author:
APT Wireless Group
Target Audience:
Network engineers, telecommunications professionals, regulators
Period of Action:
Ongoing
Date of Approval:
March 13, 2015
Date of Modifications:
None