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This document is a technical report from the 3rd Generation Partnership Project (3GPP), detailing solutions and specifications related to non-terrestrial networks (NTN) and their coexistence with terrestrial networks, primarily focused on radio frequency aspects.
Year:
2021
Region / City:
Sophia Antipolis, France
Topic:
Non-terrestrial networks (NTN), RF and co-existence
Document Type:
Technical Report
Organization / Institution:
3GPP
Author:
3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC)
Target Audience:
Stakeholders in telecommunications and satellite communication
Period of Validity:
Not specified
Approval Date:
Not approved
Date of Changes:
Not specified
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Year:
2022
Region / City:
Global
Topic:
Radio Frequency, 5G, Co-existence
Document Type:
Technical Report
Organization / Institution:
3GPP
Author:
3GPP Technical Specification Group Radio Access Network
Target Audience:
Technical professionals in the telecommunications industry
Period of Effect:
Ongoing for future development
Approval Date:
Not approved
Date of Modifications:
Not applicable
Year:
2021
Region / City:
Not specified
Topic:
HAPS coexistence
Document type:
Research document
Organization:
3GPP TSG-RAN WG4
Author:
Nokia, Nokia Shanghai Bell
Target audience:
Researchers and professionals in wireless communication
Period of validity:
August 2021
Approval date:
Not specified
Amendment date:
Not specified
Year:
2021
Region / city:
Sophia Antipolis, France
Topic:
Narrow-Band Internet of Things (NB-IoT), enhanced Machine Type Communication (eMTC), Non-Terrestrial Networks (NTN)
Document Type:
Technical Report
Organization / Institution:
3rd Generation Partnership Project (3GPP)
Author:
3GPP
Target Audience:
Technical professionals and organizations involved in mobile communication technologies
Period of validity:
Not specified
Approval date:
Not subject to approval
Date of changes:
Not specified
Year:
2021
Region / City:
N/A
Topic:
Non-Terrestrial Networks, NR Solutions
Document Type:
Work Item Description
Organization:
3GPP
Author:
Thales
Target Audience:
3GPP members, Technical stakeholders
Period of Validity:
N/A
Approval Date:
March 22-26, 2021
Modification Date:
N/A
Meeting:
3GPP RAN WG2 Meeting #113e
Agenda Item:
8.10.2.2
Document Number:
R2-2102013e
Source:
InterDigital
Document Status:
Draft
Document For:
Discussion, Decision
Date:
January 25 – February 5, 2021
Topic:
HARQ timer behavior in Non-Terrestrial Networks
Technology:
5G NR
Specification References:
TS 38.321
Organizations Mentioned:
3GPP RAN WG2
Participating Companies:
APT, Panasonic, Huawei, HiSilicon, Lenovo, CATT, Spreadtrum, Samsung, Intel, MediaTek, LG, Nokia, OPPO, ZTE, Qualcomm, Xiaomi, Ericsson
Related Release:
Release 17
Deadlines:
February 1–2, 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
Region / city:
e-Meeting (Virtual)
Subject:
HARQ operation and enhancements for NB-IoT/eMTC over NTN
Document type:
Technical contribution / meeting report
Organization:
3GPP TSG RAN WG1
Author:
Moderator (Samsung)
Agenda item:
8.15.4
Purpose:
Discussion and decision on potential enhancements
Target audience:
RAN working group members
Reference documents:
RAN#91-e, RAN#92, TR 36.763
Year:
2021
Meeting:
3GPP TSG RAN #92-e
Format:
Electronic Meeting
Dates:
June 14–18, 2021
Agenda Item:
10.5.1
Study Item:
FS_LTE_NBIOT_eMTC_NTN
Title of Study:
Study on NB-IoT/eMTC Support for Non-Terrestrial Networks (NTN)
Type of Document:
Status Report to TSG
Leading Working Group:
RAN1
Rapporteur:
Gilles Charbit
Company:
MediaTek
Study Item Status:
Completed
Target Completion Date:
12/2021
Overall Completion Level:
100%
Related Specification:
TR 36.763
Release:
Rel-17 timeframe
Technical Scope:
Time and frequency synchronization enhancements for NB-IoT/eMTC over NTN
Scenarios Covered:
GEO, LEO, MEO satellite deployments
Normative Phase:
Pending further discussion in RAN4
Document type:
Draft Change Request
Specification:
3GPP TS 38.213
Current version:
18.6.0
Release:
Rel-19
Category:
B (addition of feature)
Work item code:
NR_NTN_Ph3-Core
Source to WG:
Samsung
Meeting:
3GPP TSG RAN WG1 #121
Location:
St Julian’s, Malta
Meeting dates:
May 17–21, 2025
CR form version:
CR-Form-v12.2
Date:
2025-05-29
Clauses affected:
4.1, 9, 13, 17.2
Other specifications affected:
TS 38.212, TS 38.214, TS 38.331
Technical domain:
Radio Access Network
Subject:
Introduction of Non-Terrestrial Networks (NTN) for NR Phase 3
Reason for change:
Introduction of NTN for NR Phase 3
Summary of change:
Introduction of NTN for NR Phase 3
Consequences if not approved:
No support of introduction of NTN for NR Phase 3
Year:
2022
Region / City:
Global
Topic:
Non-Terrestrial Networks, NR NTN
Document Type:
Work Item Description
Organization / Institution:
3GPP
Author:
Thales
Target Audience:
3GPP members and stakeholders
Period of Validity:
Release 18
Approval Date:
2022-12-16
Modification Date:
None provided
Objective:
Define enhancements for Non-Terrestrial Networks (NTN) in NG-RAN for improved performance and mobility.
Impacts:
UICC apps, ME, AN, CN
Classification:
Feature
Parent Work Item:
FS_NR_nonterr_nw
Related Work Items:
FS_NR_NTN_solutions, 5GSAT_ARCH, NR_NTN_solutions
Context:
Work item that specifies the enhancements for NR NTN to improve coverage, performance, and mobility in satellite-based network scenarios for 5G.
Year:
2021
Organization:
3GPP TSG RAN WG1
Location:
e-Meeting
Document Type:
Technical Contribution
Topic:
HARQ Enhancements, IoT over NTN
Author/Source:
Moderator (Samsung)
Agenda Item:
8.15.4
Target Audience:
RAN1 Working Group Members
Study Period:
RAN#91-e to RAN#105-e
Release Reference:
Rel-17
Technical Reference:
TR 36.763
Year:
2026
Location:
Gothenburg, Sweden
Subject:
Semi-Persistent Scheduling for NB-IoT NTN
Document Type:
Meeting Session Notes
Organization:
3GPP TSG RAN WG1
Author:
Ad-Hoc Chair (Ericsson)
Participants:
Ericsson, Huawei, HiSilicon, Qualcomm, Spreadtrum, UNISOCR, OPPO, ZTE, Sanechips, CAT, Xiaomi, vivo, NEC, Samsung, Apple, TCL, Sharp, MediaTek, LG, ETRI, Nokia, Google Korea LLC
Agenda Item:
9.7
Reference Document:
RP-251867
Scope:
Rel-20 NB-IoT-NTN voice packet DL/UL data transmission
Purpose:
Endorsement and discussion of scheduling configurations for IoT NTN
Year:
2026
Location:
Gothenburg, Sweden
Topic:
Non-Terrestrial Networks for Internet of Things (IoT)
Document Type:
Meeting Notes
Organization:
3GPP TSG RAN WG1
Author:
Ad-Hoc Chair (Ericsson)
Contributors:
Huawei, HiSilicon, Qualcomm Incorporated, Spreadtrum, UNISOCR, OPPO, ZTE Corporation, Sanechips, CAT, Xiaomi, vivo, NEC, Samsung, Apple, TCL, Sharp, MediaTek Inc., LG Electronics, ETRI, Nokia, Google Korea LLC
Agenda Item:
9.7
Period:
February 9–13, 2026
Content Focus:
Semi-persistent scheduling (SPS) for DL/UL data transmission for voice packets in NB-IoT NTN
Reference Documents:
RP-251867, [124-R20-IoT-NTN]
Year:
2024
Region / City:
Athens, Greece
Topic:
Coverage enhancement for NR NTN
Document Type:
Discussion Document
Organization:
3GPP TSG RAN WG1
Author:
Moderator (NTT DOCOMO, INC.)
Target Audience:
3GPP members and related stakeholders
Period of Validity:
N/A
Approval Date:
N/A
Amendment Date:
N/A
Year:
2023
Region / City:
Athens, Greece
Topic:
IoT NTN, HARQ feedback
Document Type:
Discussion and decision
Organization / Institution:
3GPP
Author:
Moderator (Lenovo)
Target Audience:
3GPP members, technical experts
Effective Period:
2023-02-27 to 2023-03-03
Approval Date:
Not specified
Modification Date:
Not specified
Year:
2026
Region / City:
Goa, India
Topic:
IMS signaling transport for GEO NB-IoT NTN access
Document Type:
Meeting Contribution
Organization / Institution:
3GPP
Author:
vivo
Target Audience:
3GPP TSG-SA WG2 members
Period of validity:
February 2026
Approval Date:
Not specified
Modification Date:
Not specified
Agenda Item:
20.1.1
Work Item / Release:
FS_5GSAT_Ph4_ARC / Rel-20
Abstract:
Updated conclusion on IMS signaling transport for GEO NB-IoT NTN access
Context:
Document proposing conclusions on IMS signaling transport for GEO NB-IoT NTN access.
Year:
2025
Region / City:
Bangalore, India
Topic:
IoT NTN TDD mode capability
Document Type:
Meeting Report
Organization / Institution:
3GPP TSG-RAN WG2
Author:
Samsung
Target Audience:
Industry experts and stakeholders in mobile communication
Period of Validity:
Not specified
Approval Date:
Not specified
Date of Modifications:
Not specified
Year:
2025
Region / city:
Bangalore, India
Topic:
IoT-NTN TDD
Document type:
Discussion paper
Organization:
3GPP TSG-RAN WG2
Author:
Toyota ITC
Target audience:
Participants of the 3GPP TSG-RAN WG2 meeting
Period of validity:
August 2025
Approval date:
August 2025
Modification date:
None
Deadline for feedback:
August 7th, 08:00 UTC
Note:
Contact information
Toyota ITC:
Claude Arzelier, Kai-Erik Sunell
Thales:
Flavien Ronteix Jacquet
Year:
2024
Region / city:
Orlando, USA
Topic:
NR-NTN S-band, UE RF Requirements
Document Type:
Meeting Report
Organization:
3GPP TSG-RAN WG4
Source:
Moderator (Inmarsat)
Target Audience:
Industry professionals, network operators, telecommunications engineers
Date of Approval:
TBD
Date of Changes:
TBD
Year:
2022
Region / City:
Electronic Meeting
Theme:
IoT NTN HARQ Enhancements
Document Type:
Report
Organization / Institution:
3GPP
Author:
CMC
Target Audience:
Companies involved in 3GPP discussions
Period of Validity:
2022-10-10 to 2022-10-19
Approval Date:
2022-10-18
Modification Date:
None