№ lp_1_2_53737
File format: docx
Character count: 80066
File size: 123 KB
Year:
2022
Region / City:
Not specified
Theme:
CSI enhancement, MIMO, 5G
Document type:
Meeting summary
Organization:
3GPP TSG RAN WG1
Author:
Moderator (Samsung)
Target audience:
Technical stakeholders, 3GPP members
Period of validity:
Not specified
Approval date:
Not specified
Date of changes:
Not specified
Context:
A summary of discussions on CSI enhancements and codebook refinements for Coherent-JT targeting FR1 in the context of 5G NR.
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Year:
2024
Meeting:
3GPP TSG RAN WG1 #116
Location:
Athens, Greece
Dates:
26 Feb – 1 Mar 2024
Agenda item:
9.1.3.2
Source:
Moderator (Qualcomm)
Title:
Summary#2 for Additional Study on AI/ML for NR Air Interface: CSI Compression
Document for:
Discussion and Decision
Related Work Item:
Artificial Intelligence (AI)/Machine Learning (ML) for NR Air Interface (Rel-19)
Related Technical Report:
TR 38.843
Topic:
CSI compression using two-sided AI/ML model
Scope:
Temporal, spatial, and frequency domain aspects of CSI compression
Companies involved:
Qualcomm; Lenovo; New H3C; Samsung; Indian Institute of Technology Madras; Fujitsu; vivo; SK telecom; Mavenir; Panasonic; OPPO; NTT DOCOMO; ETRI; Ericsson; ZTE; IIT Kanpur; Spreadtrum; LG; CATT; Intel; Xiaomi; AT&T; CMCC; NVIDIA; MediaTek; Futurewei; TCL
Contact information included:
Yes
Year:
2022
Region / City:
International
Theme:
Network-controlled repeaters, L1/L2 signaling
Document type:
Technical report
Organization:
3GPP TSG RAN WG1
Author:
Moderator (Fujitsu)
Target audience:
Industry professionals, network engineers
Action period:
May 9th – 20th, 2022
Approval date:
N/A
Date of amendments:
N/A
Year:
2022
Region / city:
Not specified
Topic:
L1/L2 signaling, network-controlled repeaters, side control information
Document type:
Meeting document
Organization:
3GPP TSG RAN WG1
Author:
Moderator (Fujitsu)
Target audience:
Technical experts in radio access networks
Period of validity:
Not specified
Approval date:
Not specified
Date of changes:
Not specified
Year:
2022
Region / City:
e-Meeting, February 21st – March 3rd, 2022
Theme:
Maintenance on Rel-17 Multi-Beam
Document Type:
Meeting Summary
Organization / Institution:
3GPP TSG RAN WG1
Author:
Moderator (Samsung)
Target Audience:
3GPP Technical Specification Group, RAN Working Group 1 Members
Period of Validity:
February 21st – March 3rd, 2022
Approval Date:
Not specified
Modification Date:
Not specified
Meeting:
3GPP TSG RAN WG1 #112
Document number:
R1-2301247
Location:
Athens, Greece
Dates:
February 27 – March 3, 2022
Agenda item:
9.1.2
Source:
Moderator (Samsung)
Release:
3GPP Release 18
Scope:
NR Evolved MIMO CSI enhancements
Frequency range:
FR1
Technical focus:
CSI reporting, Type-II codebook refinement, Coherent-JT, multi-TRP
Assumptions:
Ideal backhaul and synchronization
Participating companies:
Samsung, Huawei, ZTE, Ericsson, Nokia/NSB, Apple, Qualcomm, MediaTek, Intel, vivo, OPPO, and others
Decision status:
Discussion and decision with partial agreements and open issues
Year:
2022
Region / City:
Not specified
Topic:
NR duplex operation evolution
Document type:
Email discussion summary
Organization / Institution:
3GPP TSG RAN WG1
Author:
Not specified
Target audience:
3GPP members and companies involved in RAN1 activities
Validity period:
Not specified
Approval date:
Not specified
Amendment date:
Not specified
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
Way Forward on Performance Aspects of Rel-18 NR Coverage Enhancement for Multiple PRACH Transmission
Year:
2023
Location:
Xiamen, China
Standardization body:
3GPP
Technical group:
TSG-RAN WG4
Meeting:
RAN WG4 Meeting #108-bis
Source organization:
China Telecom
Agenda item:
5.27.3
Release:
3GPP Release 18
Subject:
NR coverage enhancement
Focus area:
Base station performance requirements
Technology:
5G NR
Frequency ranges:
FR2-1; FR1 (under discussion)
Channel models:
AWGN, TDLC 300-100 Low, TDLA30-300 Low, CDL-A
Transmission type:
Multiple PRACH transmission
Approval status:
Document for approval
Document type:
Change Request
Standardization body:
3GPP
Technical group:
TSG-CT WG1
Meeting:
#141-e
Release:
Rel-18
Category:
B
Work item code:
MCOver5MBS
CR number:
0095
Specification number:
24.581
Current version:
18.1.0
Date:
2023-04-04
Meeting dates:
17–21 April 2023
Source to WG:
TD Tech
Source to TSG:
C1
Affected domains:
Core Network; UICC applications
Affected clauses:
2; 3.3; 9.1.2; 9.X
Related technologies:
5G MBS; MCVideo; RTCP; MBMS
Change reason:
Support of 5G MBS downlink media transmission in MCVideo media plane
Summary of change:
Addition of references, abbreviations, message subtypes, and new control messages for 5G MBS
Consequences if not approved:
Lack of support for 5G MBS in MCVideo media plane
Revision history:
1st, 2nd, 3rd, and 4th changes
Normative references:
3GPP TS/TR and IETF RFC specifications
Year:
2022
Region / City:
Global
Topic:
5G technology, CSI enhancement
Document Type:
Meeting Summary
Organization / Institution:
3GPP TSG RAN WG1
Author:
Moderator (Samsung)
Target Audience:
3GPP participants, telecommunications professionals
Period of validity:
N/A
Approval Date:
N/A
Date of Changes:
N/A
Year:
2022
Region / city:
Global
Topic:
Telecommunications, MIMO, CSI enhancements
Document type:
Technical Summary
Organization / institution:
3GPP TSG RAN WG1
Author:
Moderator (Samsung)
Target audience:
Industry professionals, telecommunications engineers
Period of validity:
2022
Approval date:
May 9th, 2022
Modification date:
N/A
Year:
2022
Organization:
3GPP
Working Group:
TSG-RAN WG1
Meeting:
RAN WG1 Meeting #109-e
Meeting format:
e-Meeting
Meeting dates:
9–20 May 2022
Agenda item:
9.6.1
Study item:
Rel-18 further NR RedCap UE complexity reduction
Preceding releases:
Rel-17
Document type:
Feature lead summary
Document purpose:
Discussion and decision
Source:
Moderator (Ericsson)
Feature lead:
Ericsson
Scope:
UE complexity and cost reduction for NR RedCap
Methodology reference:
TR 38.875
Baseline comparison:
Rel-17 RedCap UE
Technical areas:
UE bandwidth, RF and baseband cost, memory size, performance and coexistence impacts
Standardization phase:
Study phase
Specification:
3GPP TS 33.127
CR Number:
0192
Revision:
2
Current Version:
18.2.0
Meeting:
3GPP TSG-SA3 Meeting #88-LI-e-a
Meeting Dates:
23 January 2023 - 27 January 2023
Meeting Location:
Online
Work Item Code:
LI18
Category:
B (addition of feature)
Release:
Rel-18
Source to WG:
SA3LI (Ministère Economie et Finances)
Source to TSG:
SA3
Date:
24 January 2023
Clauses Affected:
7.9.1; 7.9.6 (new)
Related Specification:
TS 33.128 CR 0460
Reason for Change:
Define LI architecture for AF session with QoS at stage 2
Summary of Change:
New xIRIs related to LI for AF session with QoS
Consequences if Not Approved:
LI will not benefit from valuable information when AF session with QoS service is invoked
Year:
2023
Region / city:
Toulouse, France
Theme:
3GPP, RRC parameters, Rel-18 XR WI
Document type:
Discussion and Decision
Organ / institution:
3GPP TSG RAN WG1
Author:
Qualcomm (Moderator)
Target audience:
3GPP members, RAN1 working group
Period of validity:
August 21st – August 25th, 2023
Approval date:
August 2023
Date of changes:
Not specified
References:
R1-2307940, Initial higher layer parameters for Rel-18 XR enhancements, Qualcomm, Nokia (WI rapporteurs)
Year:
2022
Region / City:
Electronic, 10 – 19 October 2022
Theme:
MUSIM Solutions for Rel-18
Document Type:
Discussion Document
Organization / Institution:
Qualcomm Incorporated
Author:
Qualcomm, MediaTek, Intel, Ericsson, Huawei, ZTE, OPPO, vivo, Samsung, LGE
Target Audience:
Technical experts in mobile network standards
Period of validity:
N/A
Approval Date:
N/A
Modification Date:
N/A
Year:
2023
Region / city:
Athens, Greece
Topic:
RedCap NR device complexity reduction
Document Type:
Meeting Summary
Author:
Ericsson
Target Audience:
RAN1 Working Group Members
Period of Validity:
2023
Approval Date:
27th February 2023
Date of Changes:
3rd March 2023
Year:
2024
Region / city:
Maastricht, NL
Theme:
UE features for Rel-18
Document Type:
Discussion/Decision
Organization / Institution:
3GPP TSG RAN WG1
Author:
Moderator (AT&T)
Target Audience:
RAN1 members, Rel-18 feature developers
Period of validity:
August 19th – 23rd, 2024
Approval date:
N/A
Date of amendments:
N/A
Year:
2023
Event:
3GPP TSG RAN WG1 #112 Meeting
Location:
Athens, Greece
Meeting Dates:
February 27 – March 3, 2023
Organization:
3rd Generation Partnership Project (3GPP)
Working Group:
TSG RAN WG1
Source:
Moderator (NTT DOCOMO)
Agenda Item:
9.1.3.1
Document Identifier:
R1-2301774
Document Type:
Technical discussion and decision contribution
Topic:
MIMO and DMRS enhancements for 5G NR Rel-18
Technical Focus:
Downlink and uplink DMRS port expansion, MU-MIMO support, antenna port indication for PDSCH, S-TRP and M-TRP scenarios
Standardization Context:
5G NR Release 18 study and specification work
Participating Companies Mentioned:
NTT DOCOMO, Qualcomm, ZTE, vivo, Ericsson, Intel, Nokia, Samsung, OPPO, MediaTek, LG, Lenovo, CATT, CMCC, New H3C, Sharp
Subject Area:
Wireless communications standardization and physical layer design
Year:
2022
Date:
2022-10-07
Event:
3GPP TSG-SA3 Meeting #87-LI-e-a
Organization:
3GPP
Working Group:
SA3 (Security)
Source Working Group:
SA3-LI (OTD)
Specification:
3GPP TS 33.128
Current Specification Version:
18.1.0
Release:
Rel-18
Work Item Code:
LI18
Document Type:
Change Request
Category:
B (addition of feature)
Affected Clauses:
7.2.2.3.4; 7.2.2.3.X; Annex A
Subject Area:
Lawful Interception; 5G Core Network; UDM
Technical Components:
UDM; AMF; IRI-POI; MDF2
Related Interfaces:
LI_X2; LI_HI2
Referenced Specifications:
TS 23.501; TS 23.502; TS 29.503; TS 29.571; ETSI TS 102 232-1; ETSI TS 103 221-2
Purpose of Change:
introduction of reporting capability for start of interception when a UE is already registered at the UDM and extension of UDM cancel location reporting with de-registration information
Repository Reference:
3GPP Forge SA3 LI repository merge request 100
Commit Hash:
881625b95d989ee87512e2dc169eb3b20c8ecda1
Year:
2025
Location:
Dallas, USA
Type of document:
Draft technical report
Organization:
3GPP TSG RAN WG1
Author:
Moderator (MediaTek)
Agenda item:
10.2.2
Purpose:
Discussion and decision on enhancing DL CSI acquisition
Target audience:
Companies participating in 3GPP RAN1 discussions
Related contributions:
38 company inputs summarized
Period:
November 17–21, 2025
Date of draft:
2025-11-17