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This is a meeting summary documenting the discussions and open issues related to NR-NTN coexistence, including contributions from companies and recommendations for further actions.
Year:
2022
Note:
Region / City
Topic:
NR-NTN coexistence
Document Type:
Meeting Summary
Organ / Institution:
3GPP TSG-RAN WG4
Author:
Moderator (Samsung)
Target Audience:
Technical specialists, engineers
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Year:
2022
Meeting:
3GPP TSG-RAN WG4 Meeting #101-bis-e
Document number:
R4-2202331
Meeting format:
Electronic Meeting
Dates:
17th – 25th January 2022
Agenda items:
6.19.1, 6.19.2
Source:
Samsung
Document for:
Approval
Working groups involved:
RAN4, RAN1, RAN2
Related release:
Rel-17, Rel-18
Topics:
FeMIMO, multi-panel simultaneous reception, QCL type-D, MPE enhancements, SRS impact, RF requirements, RRM, Demod
Companies mentioned:
Samsung, Nokia, Qualcomm, Huawei, Ericsson
Work items:
FeMIMO WI, potential RAN4-led WI of Rel-18
Referenced contributions:
R4-2200342, R4-2201967
Type of document:
Working group meeting report and agreements summary
Year:
2022
Region / City:
Electronic Meeting
Theme:
NR-NTN coexistence
Document Type:
Meeting Summary
Organization / Institution:
3GPP TSG-RAN WG4
Author:
Moderator (Samsung)
Target Audience:
3GPP Members, NR-NTN Coexistence Experts
Period of validity:
17 – 25 January, 2022
Approval Date:
N/A
Modification Date:
N/A
Year:
2022
Region / City:
Global
Topic:
NR-NTN coexistence, wireless communication
Document Type:
Meeting Summary
Organization:
3GPP TSG-RAN WG4
Author:
Moderator (Samsung)
Target Audience:
Technical experts, wireless communication researchers
Period of Validity:
January 17 – 25, 2022
Approval Date:
January 17, 2022
Date of Changes:
Not specified
Year:
2025
Location:
Prague, Czech Republic
Topic:
6G sensing and ISAC study
Document type:
Meeting summary / Technical contribution
Organization:
3GPP TSG-RAN WG4
Authors:
Moderator (ZTE), Samsung, CMCC, CATT
Agenda item:
8.1
Use cases:
UAVs, humans, vehicles, AGVs
Technical focus:
Sensing performance, interference analysis, TDM/FDM methods, KPI evaluation
Frequencies considered:
FR1, FR2
Sensing modes:
Monostatic, Bistatic, Multistatic
Year:
2024
Location:
Hefei, Anhui, China
Topic:
NR duplex evolution, Sub-band Full Duplex (SBFD)
Document type:
Meeting report / Summary
Organization:
3GPP TSG-RAN WG4
Author:
Moderator (Samsung)
Intended audience:
RAN working group participants
Agenda item:
6.20.4
Meeting number:
112bis
Frequency range:
FR1 and FR2-1
Related work items:
RP-234035, RP-240789, R4-2413514
Year:
2024
Location:
Maastricht, Netherlands
Meeting:
3GPP TSG-RAN WG4 #112
Agenda item:
8.1.3
Source:
Moderator (Samsung)
Document type:
Technical meeting summary
Subjects:
High Power UE (HPUE), Carrier Aggregation (CA), NR_ENDC, PC1.5, intra-band and inter-band UL CA, RF requirements
Contributors:
Apple, Samsung, Skyworks Solutions Inc., Meta Ireland, Ericsson, LG Electronics, Xiaomi, Nokia, vivo, Qualcomm, Huawei, ZTE Corporation, CHTTL, OPPO, NTT DOCOMO
Target audience:
3GPP participants and related technical stakeholders
Period:
19–23 August 2024
Date of creation:
2024-08-19
Year:
2025
Region / City:
Athens, Greece
Topic:
NR_IoT_NTN_Bands
Document Type:
Information
Source:
Moderator (Aalyria)
Audience:
Technical experts, telecom industry professionals
Period of Validity:
Not specified
Approval Date:
Not specified
Last Modified Date:
Not specified
Year:
2024
Region / City:
Changsha, China
Topic:
Positioning core and performance requirements for RedCap and PRS/SRS bandwidth aggregation
Document Type:
Meeting Summary
Organization:
3GPP TSG-RAN WG4
Author:
Moderator (Ericsson)
Target Audience:
3GPP participants and interested stakeholders in RAN
Period of Action:
15-19 April 2024
Approval Date:
Not specified
Amendment Date:
Not specified
Year:
2023
Location:
Toulouse, France
Topic:
NR FR1 TRP TRS measurement and methodology
Document type:
Meeting summary
Organization:
3GPP TSG-RAN WG4
Contributors:
Huawei Tech., Rohde & Schwarz, Apple, Keysight Technologies, Samsung, vivo
Agenda item:
8.15.4
TRP/TRS Work Item:
Rel-18 FR1
Test methodology:
Anechoic chamber testing, UL MIMO, TxD considerations
Recommendations:
TPMI index selection, test-time optimization, EIRP measurement
Year:
2022
Note:
Region / City
Topic:
NR NTN Demodulation Requirements
Document Type:
Draft
Organization / Institution:
Qualcomm Incorporated
Year:
2020
Event:
3GPP TSG-RAN WG4 Meeting #97e
Date:
2nd Nov. – 13th Nov. 2020
Document type:
Summary / Report
Source:
THALES
Agenda items:
12.8.1, 12.8.2, 12.8.3
Topics covered:
NR NTN RF core requirements, use cases, deployment scenarios, regulatory information, coexistence aspects
Participants:
Ericsson, Samsung, THALES, Fraunhofer HHI, Fraunhofer IIS, Nokia, Huawei, Xiaomi, ZTE Corporation, HUGHES Network Systems Ltd
Format:
Electronic meeting summary
Content scope:
Technical discussion, proposed requirements, simulation assumptions, prioritization of discussion points
Meeting:
3GPP TSG-RAN WG4 Meeting #117
Working Group:
TSG-RAN WG4
Document Number:
R4-2522206
Agenda Item:
10.1.3
Source:
Moderator (Ericsson)
Title:
Topic summary for [117][333] BSRF_Maintenance_Legacy
Location:
Dallas, TX, USA
Dates:
November 17–21, 2025
Document For:
Information
Scope:
Up to Rel-18 maintenance for LTE and NR and TEI; BS RF requirements and BS conformance testing (other than NTN); Rel-16/17 TEI and others (EMC, OTA, TRP/TRS)
Related Specifications:
TS 38.104; TS 37.104; TS 37.141; TS 37.145-1; TS 37.145-2; TS 36.104; TS 36.141; TS 38.115-1; TS 38.115-2; TS 38.176-2; TS 37.113; TS 38.101-4; TS 25.105; TS 25.142
Contributing Companies:
CATT; Ericsson; Keysight Technologies UK Ltd; Huawei; HiSilicon; Nokia
Topics Covered:
NB-IoT reference sensitivity requirements; removal of UTRA TDD from MSR BS specifications; RDN definition for OTA AAS BS; corrections to delay profiles and throughput descriptions; operating band unwanted emissions; repeater and IAB clarifications; removal of LTE Band 47
Change Requests:
Multiple CRs submitted and revised for 3GPP specifications across NR, LTE, TEI, and MSR BS domains
Meeting:
3GPP TSG-RAN WG4 Meeting #96-e
Document number:
R4-20xxxxx
Agenda item:
7.3.5 & 7.3.6
Source:
Moderator (LG Electronics)
Title:
Email discussion summary for [96e][210] 5G_V2X_NRSL_RRM
Document for:
Information
Date:
17–28 Aug 2020
Working group:
TSG-RAN WG4
Related specifications:
38.133, 36.133
Related change requests:
R4-2010084, R4-2010085, R4-2011380, R4-2011053, R4-2011382, R4-2010037, R4-2010083, R4-2011054, R4-2011379
Companies involved:
LG Electronics, MediaTek, Huawei, HiSilicon, Qualcomm
Topics:
5G V2X NR sidelink RRM core requirements, performance requirements, interruption requirements, measurement accuracy, test cases
Communication format:
Electronic meeting and e-mail discussion
Technical scope:
Interruption to WAN, synchronization scenarios, LTE SL and NR SL switching, measurement accuracy, scheduling availability, test case planning
Year:
2022
Organization:
3GPP TSG-RAN WG4
Meeting type:
Electronic Meeting
Document type:
Information Summary
Source:
Qualcomm Incorporated
Participants:
Apple Inc., Nokia, Nokia Shanghai Bell, Ericsson, Huawei, HiSilicon
Agenda item:
9.15.10.2
Topic:
UE performance requirements for Rel-17 extension to 71GHz
Rounds of discussion:
1st round, 2nd round
Frequency range:
FR2-2
SCS/CBW combinations:
120 kHz, 480 kHz, 960 kHz SCS; CBW 100 MHz – 2000 MHz
Proposals and observations:
UE demodulation, channel models (TDL-A, TDL-D), Doppler and delay spread considerations, PDSCH/PDCCH/PBCH requirements
Year:
2024
Region / City:
Athens, Greece
Topic:
Coexistence of n101 with other radio technologies
Document type:
Meeting summary
Organization:
3GPP TSG-RAN WG4
Author:
Moderator (Ericsson)
Target Audience:
Technical experts in radio access networks
Period of validity:
February 26 – March 1, 2024
Approval date:
February 2024
Date of changes:
N/A
Context:
A summary of proposals regarding technical conditions and interference concerns related to the coexistence of FRMCS and MFCN systems in the 1900-1910 MHz frequency range.
Meeting:
3GPP TSG-RAN WG4 Meeting #103-e
Document number:
R4-220xxxx
Meeting type:
Electronic Meeting
Dates:
May 09 – May 20, 2022
Agenda items:
8.24, 8.26
Source:
Moderator (China Telecom)
Document for:
Information
Topics:
NR Power Class 2 UE, Inter-band Carrier Aggregation, SUL configurations, Release 17
Related specifications:
TR 38.841, TS 38.101-1, TS 38.331
Companies involved:
AT&T, Verizon, Samsung, Huawei, HiSilicon, T-Mobile USA, MediaTek, ZTE, Nokia
Sub-topics:
Power Class Ambiguity; UE requirements for band combinations
Contributions referenced:
R4-2207722, R4-2207723, R4-2207724, R4-2207725, R4-2207935, R4-2207936, R4-2207937, R4-2207939, R4-2209182, R4-2209183, R4-2210005, R4-2210006, R4-2210007, R4-2210008, R4-2210009, R4-2210010, R4-2210011, R4-2207726
Contact information included:
Yes
Year:
2022
Meeting:
3GPP TSG-RAN WG4 Meeting #101-bis-e
Document number:
R4-2202331
Meeting format:
Electronic Meeting
Dates:
17th – 25th January 2022
Agenda items:
6.19.1, 6.19.2
Source:
Samsung
Document for:
Approval
Working groups involved:
RAN4, RAN1, RAN2
Related release:
Rel-17, Rel-18
Topics:
FeMIMO, multi-panel simultaneous reception, QCL type-D, MPE enhancements, SRS impact, RF requirements, RRM, Demod
Companies mentioned:
Samsung, Nokia, Qualcomm, Huawei, Ericsson
Work items:
FeMIMO WI, potential RAN4-led WI of Rel-18
Referenced contributions:
R4-2200342, R4-2201967
Type of document:
Working group meeting report and agreements summary
3GPP TSG-RAN WG4 Meeting #113 Topic Summary for [113][317] IoT_NTN_TDD, Orlando, 18–22 November 2024
Organization:
3GPP TSG-RAN WG4
Meeting number:
#113
Location:
Orlando, US
Meeting dates:
18–22 November 2024
Agenda item:
7.28.3
Source:
Moderator (Qualcomm Incorporated)
Document type:
Technical meeting contribution (information)
Work item:
IoT_NTN_TDD
Related agenda items:
7.28.1 General aspects and work plan; 7.28.2 Study of impact due to periodic pattern
Technical scope:
NB-IoT NTN TDD mode and new operating band specification
Target frequency band:
1616–1626.5 MHz MSS allocation
Satellite scenarios:
LEO @600 km and @1200 km, set-1 satellite parameters (TR 36.763)
Baseline TDD periodicity:
N = 9 radio frames
Baseline DL consecutive subframes (D):
8
Baseline UL consecutive subframes:
8
Channel bandwidth:
200 kHz
Deployment assumptions:
Standalone NB-IoT with anchor and non-anchor carriers; Earth fixed tracking area; Earth fixed or Earth moving cells for NGSO
Responsible groups:
RAN1, RAN2, RAN4
Study phase start:
RAN1 from Oct 2024; RAN4 from Nov 2024
Checkpoint:
RAN#106 completion of study phase
Key aspects under study:
Periodic UL/DL pattern impact on UE synchronization, RRM, RF requirements, demodulation, higher layer impacts
Exclusions:
No NTN-NTN coexistence study; reuse of existing RAN4 RF emission requirements