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This document provides a summary of discussions and proposals on CSI-RS port enhancements and codebook refinements for 5G NR in the context of Rel-19.
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
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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
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
Year:
2024
Region / City:
Athens, Greece
Topic:
NR MIMO Phase 5 CSI Enhancement
Document Type:
Technical Specification
Organization / Institution:
3GPP TSG RAN WG1
Author:
Moderator (Samsung)
Target Audience:
Technical experts in wireless communication
Period of Validity:
February 26th – March 1st, 2024
Approval Date:
Not specified
Date of Changes:
Not specified
Year:
2025
Region / City:
Prague, Czech
Topic:
IoT NTN, MAC CR
Document Type:
Meeting Document
Organization:
3GPP RAN WG2
Author:
MediaTek, Inc.
Target Audience:
3GPP members, industry professionals
Period of Validity:
Oct 13th – 17th, 2025
Approval Date:
Not specified
Date of Changes:
Not specified
Date:
09 January 2024
Time:
14:30-16:00 CET
Venue:
Microsoft Team Meeting (Online)
Organizer:
Sheeba Backia Mary B.
Company:
MITRE, Lenovo, BSI, JHU/APL, Ericsson, NIST, Huawei, Nokia, Charter Communications, ZTE, Thales, Motorola Solutions, Comcast, BMWK, Interdigital
Participants:
Adrian Buckley, Andreas Kunz, Andreas Pashalidis, Candace Carducci, Christine Jost, Jeffrey A. Cichonski, David Gabay, David Hasselquist, Denisha Jackson, DJEMAI Tanissia, Dusty Hoffpauir, Elizabeth Koser, Francois Ennesser, Ge Yao, German Peinado, Gino Scribano, Hongyi Pu, Imran Saleem, Johannes Doerr, John Ing, Jörg Andreas, Markus Hanhisalo, Michael Bilca, Noamen, PAULIAC Mireille, Peilin, Sajid, Taha, Sheeba Baskaran, Tim Woodward, Tyler Hawbaker, Venkata Rama Raju Chelle, Yuze Liu, Zhibi Wang
Note:
Agenda
Year:
2024
Region / City:
Online
Topic:
Security, Policy Enforcement, Data Exposure
Document Type:
Meeting Minutes
Organization:
MITRE, Lenovo, BSI, JHU/APL, Ericsson, NIST, Huawei, Nokia, Charter Communications, ZTE, Thales, Motorola Solutions, Comcast, BMWK, Interdigital
Author:
Sheeba Backia Mary B.
Target Audience:
Participants of the meeting, professionals in security and telecom
Period of Validity:
Ongoing discussions
Approval Date:
09 January 2024
Amendment Date:
None
Meeting:
3GPP TSG-RAN4 Meeting #116bis
Location:
Prague, Czech Republic
Meeting Date:
13–17 October 2025
Specification:
3GPP TS 38.133
Current Version:
19.2.0
CR Number:
R4-2513488
CR Form Version:
CR-Form-v12.3
Category:
F (correction)
Release:
Rel-19
Work Item Code:
NR_Mob_Ph4-Core
Title:
Corrections on R19 mobility RRM
Source to WG:
Huawei, HiSilicon
Source to TSG:
R4
Date:
22 September 2025
Affected Clause:
9.14a.5
Other Affected Specification:
TS 38.533
Proposed Change Affects:
ME, Radio Access Network
Reason for Change:
Correct some incorrect or redundant content
Summary of Change:
Correction of incorrect or redundant requirements related to CSI-RS based L1-RSRP measurements
Consequences if Not Approved:
Requirements of CSI-RS based L1 measurement on candidate cells remain incorrect
Year:
2025
Region / City:
Athens, Greece
Topic:
NR UE features for LP-WUS/WUR
Document Type:
Discussion and Decision
Organization:
3GPP TSG RAN WG1
Author:
Moderator (NTT DOCOMO, INC.)
Target Audience:
3GPP TSG RAN WG1 participants
Period of Effect:
Rel-19
Approval Date:
February 17th – 21st, 2025
Date of Changes:
N/A
Context:
A summary document presenting proposed NR UE features for LP-WUS/WUR in Rel-19 for discussion and decision within the 3GPP community.
Year:
2026
Region / city:
Gothenburg, SE
Topic:
CSI enhancements for Rel-19 MIMO
Document type:
Technical report
Organization:
3GPP TSG RAN WG1
Author:
Samsung (Moderator)
Target audience:
Technical experts in telecommunications
Period of validity:
2026
Approval date:
February 9th, 2026
Date of changes:
February 9th, 2026
Note:
Summary of document
Date:
09 January 2024
Time:
14:30–16:00 CET
Venue:
Microsoft Team Meeting (Online)
Organizer:
Sheeba Backia Mary B.
Document Type:
Meeting Minutes
Working Topics:
WT1 Data Exposure for Security Evaluation and Monitoring; WT2 Security Mechanism for Dynamic Policy Enforcement
Release Context:
Rel-19
Participants:
Representatives from MITRE, Lenovo, BSI, JHU/APL, Ericsson, NIST, Sectra, NSA, Irt Saint Exupéry, Charter Communications, Huawei, China Unicom, Nokia, BMWK, PSC, Trideaworks, Thales, ZTE, Comcast, Motorola Solutions, OTD_US, Department of Telecom, Interdigital
Main Themes:
Threat identification, data exposure analysis, security monitoring, dynamic policy enforcement, SBA layer, security assumptions, use case mapping
Related Concepts:
SNPI, PII, SIEM, SOAR, ACME STAR (RFC 8739), certificate management, key issues and solutions
Summary of Decisions:
Agreement to refine threat and data identification for WT1 and to study use case-based mapping between threats and policy enforcement actions for WT2
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
Year:
2026
Region / City:
United States
Subject:
Resilient Flooring Specifications
Document Type:
Technical Specification
Organization / Institution:
Construction Specification Institute (CSI)
Author:
Windmoeller
Target Audience:
Contractors, Architects, Engineers, Flooring Specialists
Validity Period:
Not specified
Approval Date:
Not specified
Amendment Date:
Not specified
Document type:
Product guide specification
Specification format:
CSI 3-Part Format
MasterFormat edition:
2016
Section number:
28 21 13
Related sections:
28 21 00; 28 21 17; 28 21 19; 28 27 00; 28 33 15
Product category:
Video surveillance equipment
Device type:
Network PTZ camera
Manufacturer:
ZHEJIANG DAHUA VISION TECHNOLOGY CO., LTD.
Manufacturer address:
No.1399, Binxing Road, Binjiang District, Hangzhou, P.R. China
Model:
DH-SD2A500-GN-HI-A-PV-0400
Image sensor:
1/2.8" CMOS
Maximum resolution:
5 MP (2560 × 1920)
Lens focal length:
4 mm
Illumination distance:
30 m
Video compression:
Smart H.265+, H.265, Smart H.264+, H.264, H.264B, MJPEG
Power supply:
12 VDC / PoE (802.3af)
Ingress protection rating:
IP66
Operating temperature:
–30 °C to +55 °C
Warranty period:
3 years
Installer qualification requirement:
Minimum 5 years experience
Manufacturer experience requirement:
Minimum 10 years
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:
Not specified
Region / City:
Not specified
Theme:
Wood doors specification for construction projects
Document Type:
Specification
Organization / Institution:
Simpson Door Company
Author:
Not specified
Target Audience:
Designers and builders
Period of validity:
Not specified
Approval Date:
Not specified
Date of amendments:
Not specified