№ files_lp_4_process_2_82047
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Change request record for the 3GPP specification TS 38.141-1 introducing measurement uncertainty definitions, test tolerances, and conformance testing parameters for SBFD operation in 5G NR base station testing procedures.
Year:
2026
Date:
2026-02-09
Location:
Gothenburg, Sweden
Meeting:
3GPP TSG-RAN WG4 Meeting #118
Organization:
3GPP TSG-RAN WG4
Source organization:
Ericsson
Document type:
Change Request (CR)
Specification:
3GPP TS 38.141-1
Current specification version:
19.3.0
Release:
Rel-19
Category:
B (addition of feature)
Work item code:
NR_duplex_evo-Perf
Affected clauses:
4, 9.1, Annex C
Technical domain:
5G NR Radio Access Network conformance testing
Subject:
SBFD conformance testing definitions and measurement requirements
Technical elements:
manufacturer declaration, test signal, test configuration, test model, measurement uncertainty, test tolerance
Related systems:
Base Station (BS) transmitter and receiver tests in FR1 frequency range
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Year:
2020
Region / city:
Electronic Meeting
Subject:
Network Testing, Random Data Content
Document type:
Change Request
Organization:
3GPP TSG-RAN WG4
Author:
Ericsson
Target audience:
WG4, TSG
Period of validity:
February 24 - March 06, 2020
Approval date:
2020-02-24
Amendment date:
N/A
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
Meeting:
3GPP TSG RAN WG1 #118bis
Location:
Hefei, China
Date:
October 14–18, 2024
Agenda Item:
9.3.1
Release:
3GPP Rel-19
Topic:
Sub-band full duplex (SBFD) operation
Document Type:
Meeting summary
Status:
Discussion and Decision
Source:
Moderator (CATT)
Organization:
3GPP
Working Group:
RAN1
Related Specifications:
TR 38.858
Duplex Mode:
TDD
Frequency Ranges:
FR1, FR2-1
UE Capability Scope:
SBFD-aware UEs
Network Entity:
gNB
Year:
2024
Region / city:
Maastricht, NL
Topic:
NR duplex evolution, SBFD TX/RX procedures
Document Type:
Discussion and Decision
Author:
Moderator (CATT)
Target Audience:
RAN1 participants
Period of validity:
August 19th – 23rd, 2024
Approval Date:
Not specified
Date of Changes:
Not specified
Context:
Technical report on NR duplex evolution and SBFD TX/RX/measurement procedures discussed during RAN1#118 meeting.
Organization:
3GPP
TSG:
TSG RAN
Meeting:
#105
Document Number:
RP-24xxxx
Agenda Item:
9.3.1.2
Work Item Name:
Evolution of NR duplex operation: Sub-band full duplex (SBFD)
Acronym:
NR_duplex_evo
Unique ID:
1020090
Related Tdoc:
RP-241614
Source Working Group:
RAN1
Rapporteurs:
Xinghua Song; He (Jackson) Wang
Companies:
Huawei; Samsung
Location:
Melbourne, Australia
Meeting Dates:
9–12 September 2024
Study Item:
No
Core Part:
Yes
Performance Part:
Yes
Testing Part:
No
Target Completion Date (Core):
09/2025
Target Completion Date (Performance):
03/2026
Overall Completion Level (Core):
28%
Overall Completion Level (Performance):
0%
Time Budget Modification Requested:
No
Technical Scope:
NR duplex operation and Sub-band Full Duplex (SBFD)
Content Focus:
SBFD TX/RX and measurement procedures, configuration parameters, RRC enhancements, collision handling, PUSCH and PUCCH configurations, SPS PDSCH considerations
Document Type:
Status report
Year:
2023
Region / City:
Gothenburg, Sweden
Topic:
5G NR, AI/ML, MIMO, LP-WUS, Network technology
Document Type:
Meeting Report
Organization / Institution:
3GPP TSG-RAN WG2
Author:
Vice Chairman (CATT)
Target Audience:
Members of 3GPP TSG-RAN WG2, network engineers, and AI/ML specialists
Period of Validity:
Feb. 09th – 13th, 2023
Approval Date:
Not specified
Amendment Date:
Not specified
Year:
2026
Location:
Gothenburg, Sweden
Meeting:
3GPP TSG-RAN WG2 Meeting #133
Agenda item:
11.2
Document type:
Meeting session report and discussion summary
Organization:
3GPP TSG-RAN WG2
Source:
RAN2 Vice Chairman (CATT)
Technical domain:
5G NR radio access network specifications
Topics:
Rel-18/19 MIMO evolution, AI/ML for NR air interface, NR positioning, beam management, RRC procedures
Related specifications:
TS 38.331, TS 37.355, TS 38.306
Working groups referenced:
RAN1, RAN2, RAN3, RAN4, SA, SA5
Contributors:
Ericsson, Qualcomm Incorporated, Huawei, HiSilicon, Apple, OPPO, ZTE Corporation, Sanechips, Nokia, Samsung, Xiaomi, LG
Document category:
Organizational email discussion and technical contribution summary
Relevant releases:
3GPP Release 18, Release 19, Release 20
Year:
2025
Location:
Gothenburg, Sweden
Topic:
5G NR SBFD TX/RX and measurement procedures
Document Type:
Technical report
Organization:
3GPP TSG RAN WG1
Author:
Moderator (Xiaomi)
Intended Audience:
3GPP members, RAN1 working group
Agenda Item:
8.3
Purpose:
Discussion and decision on Rel-19 SBFD procedures
Key Issues:
HARQ process ID determination for multi-PDSCH/PUSCH, collision handling
Related Documents:
R1-2600168, R1-2600863, R1-2600474, R1-2600595, R1-2600617, R1-2600727, R1-2601158, R1-2601235, R1-26001246, R1-2601417
Procedure References:
TS 38.214, Clause 5.1, Clause 6.1
Year:
2026
Location:
Gothenburg, Sweden
Subject:
3GPP NR standardization, MIMO evolution, AI/ML for air interface, positioning enhancements
Document Type:
Meeting report / Draft session notes
Organization:
3GPP TSG-RAN WG2
Authors:
RAN2 Vice Chairman (CATT), Ericsson, Qualcomm, Huawei, Nokia, ZTE, Apple, Xiaomi, OPPO, Sanechips
Target Audience:
3GPP members and associated stakeholders
Agenda Items:
11.2 – Rel-18/19 MIMO, Rel-19 LPWUS, SBFD, NR Others, Rel-19/20 AIPHY
Specifications Discussed:
TS 38.331, TS 38.306, TS 37.355
Decisions:
Agreements on corrections, capability signaling, periodic CSI handling, and AI/ML positioning procedures
Meeting Period:
February 9–13, 2026
Context:
Meeting report detailing discussions, agreements, and corrections on 3GPP NR Rel-18/19/20 features including MIMO evolution, AI/ML air interface enhancements, positioning capabilities, and specification updates for multiple vendors and contributors.
Year:
2026
Region / City:
Gothenburg, Sweden
Topic:
NR-DC, SBFD, RAN4 specifications
Document Type:
Technical Liaison Statement
Organization / Institution:
3GPP
Author:
Chenchen Zhang
Target Audience:
RAN WG2, RAN WG1, RAN WG3
Period of Effectiveness:
Feb 09-13, 2026
Approval Date:
Feb 09-13, 2026
Amendment Date:
None
Attachments:
1
Contextual Description:
A technical liaison statement from RAN4 to RAN2, discussing the implications of SBFD and DC simultaneous configuration and the lack of identified specification impact at this stage.
Year:
2026
Location:
Gothenburg, Sweden
Subject:
SBFD TX radiated conformance tests
Document type:
Change Request
Organization:
3GPP TSG-RAN WG4
Author:
Samsung
Target audience:
Radio Access Network engineers and testers
Work item code:
NR_duplex_evo-Perf
Release:
Rel-19
Category:
B (addition of feature)
Date of issue:
2026-02-13
Clauses affected:
Clause 9
Year:
2024
Region / City:
Athens, Greece
Topic:
Frame structure and timing aspects for Rel-19 Ambient IoT
Document Type:
Discussion Paper
Organization / Institution:
3GPP TSG-RAN WG1
Author:
Moderator (vivo)
Target Audience:
Participants of 3GPP TSG-RAN WG1
Period of Validity:
February 26th – March 1st, 2024
Approval Date:
N/A
Modification Date:
N/A
Year:
2025
Region / City:
Prague, Czech Republic
Topic:
Technical Specifications
Document Type:
Change Request
Organ / Institution:
3GPP
Author:
Nokia
Target Audience:
Technical specialists in radio access networks
Period of Validity:
2025
Approval Date:
2025-10-23
Change Category:
A
Release:
19
Reason for Change:
Correction of a typo in the priority formula for CSI based on Doppler codebook
Affected Clauses:
5.2.3
Summary of Change:
τ replaces j in Pril,i,f,j
Consequences if not Approved:
Incorrect priority formula for CSI based on Doppler codebook
Other Comments:
Revision history available in the document
Year:
2024
Region / city:
Fukuoka, Japan
Theme:
CSI enhancement, NR MIMO, codebook refinement
Document type:
Discussion and Decision
Organization / institution:
3GPP TSG RAN WG1
Author:
Moderator (Samsung)
Target audience:
3GPP participants
Period of validity:
May 20th – 24th, 2024
Approval date:
N/A
Modification date:
N/A
Year:
2024
Region / City:
Athens, Greece
Theme:
NR MIMO Phase 5, asymmetric DL sTRP/UL mTRP deployment
Document Type:
Technical Report
Organization:
3GPP TSG RAN WG1
Author:
Moderator (OPPO)
Target Audience:
Technical experts in wireless communication, MIMO technology
Period of Action:
Rel-19 WI
Approval Date:
February 26th – March 1st, 2024
Date of Changes:
None
Year:
2024
Region / City:
Changsha, Hunan Province, China
Topic:
CSI-RS ports, NR MIMO, FR1, Type-I codebook refinement
Document Type:
Report
Organization / Institution:
3GPP TSG RAN WG1
Author:
Moderator (Samsung)
Target Audience:
Technical experts, industry professionals in wireless communication
Period of validity:
April 15th – 19th, 2024
Date of approval:
N/A
Date of modifications:
N/A
Specification:
3GPP TS 38.331
Working Group:
3GPP TSG-RAN WG2
Meeting:
#132
Location:
Dallas, USA
Meeting dates:
17th – 21st November 2025
Document number:
R2-250xxxx
Revision:
1
Current version:
19.0.0
CR number:
5604
CR category:
B (addition of feature)
Release:
Rel-19
Work item code:
TEI19
Date:
2025-11-20
Title:
NR-NTN to NB-IoT NTN Cell Selection [IoT_NR_NTN_CellSelect]
Source to WG:
EchoStar, Boost Mobile Network, Qualcomm, Aalyria, Terrestar, Skylo, Sateliot, Samsung
Source to TSG:
R2
Clauses affected:
2, 5.2.2.4, 6.2.2, 6.3.1, 6.3.2
Other specifications affected:
TS 38.306 CR 1389; TS 38.300 CR 1059
Reason for change:
Enhanced inter-RAT cell selection mechanism between NR-NTN and IoT NTN
Summary of change:
Introduction of IoT NTN neighbour cell information in new SIBxy including IoT NTN carrier frequency and satellite information
Consequences if not approved:
Reduced efficiency of inter-RAT cell selection and potential service interruption or degraded performance for UEs with dual NTN RAT capabilities
Revision history:
r0 initial version; rev1 introduction of new SIBxy and revision of field description parameters
Form version:
CR-Form-v12.3
Year:
2024
Region / City:
Sophia Antipolis, France
Topic:
Telecommunication
Document Type:
Technical Report
Organization / Institution:
3rd Generation Partnership Project (3GPP)
Author:
3GPP Organizational Partners
Target Audience:
Telecommunication professionals, engineers
Period of Validity:
Future development work within 3GPP
Approval Date:
Not yet approved
Amendment Date:
None
Context:
A technical report on inter-band carrier aggregation configurations for Release 19 of NR, including co-existence studies and requirements for various frequency bands.
Organization:
3GPP SA4
Meeting:
3GPP SA4 #128
Location:
Jeju, Korea
Meeting dates:
20 May–24 May 2024
Document number:
S4-241099
Form:
CR-Form-v12.0
Document type:
PSEUDO CHANGE REQUEST
Specification:
3GPP TS 26.822
Work item code:
FS_5G_RTP_Ph2
Release:
Rel-19
Category:
B (addition of feature)
Current version:
0.0.1
Source to WG:
Qualcomm Incorporated, Lenovo
Date:
20 May 2024
Title:
[FS_5G_RTP_Ph2] Candidate RTCP messages and RTP header extensions to support XR services in 5G
Reason for change:
Key Issue #7 concerning RTCP messages to better support XR services in 5G
Summary of change:
Documentation of RTCP messages and RTP header extensions supported in the current WebRTC implementation
References added:
WebRTC source code; TWCC draft; RFC 8698 (NADA); SCReAMv2 draft
Meeting:
3GPP TSG-RAN WG4 Meeting #116
Location:
Bengaluru, India
Date:
25–29 August 2025
Agenda item:
7.6.1
Source:
Moderator (Samsung)
Title:
Way to Complete Rel-19 NTN HPUE
Document for:
Approval
Working Group:
TSG-RAN WG4
Release:
Rel-19
Technology:
NR-NTN
Topic:
Tx and Rx requirements, MPR and A-MPR agreements
Frequency Bands:
n255, n256
Power Classes:
PC1, PC1.5, PC2
Waveforms:
DFT-s-OFDM, CP-OFDM
Modulations:
PI/2 BPSK, QPSK, 16 QAM, 64 QAM
Channel Bandwidths:
5 MHz, 10 MHz, 15 MHz, 20 MHz
Decision Status:
Agreements recorded for specified issues
Related Release Work:
Recommendation to continue PC1.5 work in Rel-20