№ lp_1_2_34639
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Record of technical discussions and agreements from 3GPP RAN1#118bis concerning Rel-19 sub-band full duplex transmission, reception, measurement procedures, and related assumptions for NR operation.
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
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Year:
2024
Location:
Hefei, China
Subject:
Ambient IoT evaluation and maximum distance targets
Document type:
Technical contribution / meeting report
Organization:
3GPP TSG RAN WG1
Authors:
CMCC (Moderator), HW/Hisilicon, Spreadtrum, vivo, CATT, OPPO, LGE, QC
Intended audience:
RAN1 Working Group members
Meeting:
RAN1#118bis
Agenda item:
9.4.1.1
Applicable scenarios:
D1T1, D2T2, InF-DH NLOS, InH-Office LOS
Key topics:
Device-specific maximum distance targets, evaluation methodology, deployment scenarios
Discussion outcomes:
Agreement on separate maximum distance targets for Device 1, 2a, and 2b; alternatives proposed for final selection
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.
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:
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
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:
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
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