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This document summarizes discussions and decisions made regarding enhancements to PDCCH reliability in the context of MIMO and multi-TRP deployment, including overbooking strategies and working assumptions.
Year:
2021
Region / City:
Global
Topic:
MIMO, Multi-TRP, PDCCH, Reliability Enhancements
Document Type:
Meeting Summary
Organization / Institution:
3GPP TSG-RAN WG1
Author:
Moderator (Qualcomm)
Target Audience:
Industry professionals, 3GPP members
Period of validity:
November 11th – November 19th, 2021
Date of approval:
November 11th, 2021
Date of amendments:
N/A
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Year:
2021
Meeting:
3GPP TSG RAN WG1#106-e
Agenda Item:
8.2.2
Source:
Moderator (Lenovo)
Document type:
Discussion / Decision
Title:
Draft discussion [106-e-NR-52-71GHz-02] on PDCCH monitoring enhancements
Topic:
PDCCH multi-slot monitoring and blind detection capability
Companies involved:
Huawei, HiSilicon, Interdigital, Sony, ZTE, Sanechips, Nokia, Nokia Shanghai Bell, Charter, LG, MediaTek, Apple, Sharp, Xiaomi, vivo, Lenovo, Motorola Mobility, Samsung, Futurewei, Qualcomm, Panasonic, NTT DOCOMO, Convida Wireless, Ericsson
Proposals:
Multi-slot PDCCH monitoring capability definitions (Alt 1, Alt 2, Alt 3)
Key parameters:
X and Y slot values, supported SCS 480/960 kHz
Decision checkpoints:
August 19, 24, 27
Discussion scope:
Blind decoding, multi-slot monitoring, PDCCH configuration constraints
Year:
2022
Region / City:
Toulouse, France
Topic:
PDCCH monitoring enhancements
Document Type:
Discussion Document
Organization:
3GPP
Author:
Moderator (Lenovo)
Target Audience:
3GPP RAN WG1 participants
Period of validity:
August 22nd – 26th, 2022
Approval Date:
N/A
Amendment Date:
N/A
Context:
Document detailing proposed enhancements and open issues regarding PDCCH monitoring in 5G systems.
Year:
2022
Meeting:
3GPP TSG-RAN2 Meeting #119-e
Dates:
15–26 August 2022
Agenda Item:
8.9.2.2 Control and Procedure details
Document Type:
Technical meeting contribution / discussion summary
Topic:
PDCCH skipping mechanism and specification handling in 3GPP NR
Source Organization:
Ericsson
Author:
Martin van der Zee
Contributing Organizations:
Ericsson; Vivo; CATT; OPPO; Huawei HiSilicon; LG Electronics; ZTE; Nokia; Xiaomi; Intel Corporation; MediaTek; Qualcomm; China Mobile
Standards Bodies:
3GPP TSG-RAN2
Related Specifications:
3GPP TS 38.213; 3GPP TS 38.321; 3GPP TS 38.300; 3GPP TS 38.331; 3GPP TS 38.306
Technical Area:
5G NR MAC layer procedures and control channel monitoring
Purpose:
Discussion and decision on specification clarification and requirement placement
Deadline for Comments:
24 August 2022, 10:00 UTC
Contact:
Martin van der Zee (Ericsson)
Year:
2026
Location:
Gothenburg, Sweden
Topic:
6G PDCCH Transmission Schemes
Document Type:
Draft Summary / Meeting Document
Organization:
3GPP TSG-RAN WG1
Author:
Moderator (Nokia)
Intended Audience:
3GPP RAN1 participants, industry stakeholders
Meeting Dates:
February 9–13, 2026
Agenda Item:
10.5.2.1
Work Item:
FS_6G_Radio
Contributions:
33 submitted proposals from multiple companies
Covered Technologies:
Sing-TRP, Multi-TRP, TN, NTN, PDCCH, CORESET, CCE, REG, MRSS
Purpose:
Summarize and organize proposals for discussion of downlink control channel transmission schemes
Year:
2021
Region / City:
Global
Topic:
Telecommunications, 5G Standards
Document Type:
Change Request
Organization / Institution:
3GPP
Author:
CATT
Target Audience:
Technical experts in telecommunications
Period of Validity:
Undefined
Approval Date:
2021-01-05
Change Date:
2021-01-05
Year:
2021
Date:
2021-02-02
Organization:
3rd Generation Partnership Project
Technical Group:
TSG RAN WG4
Meeting:
RAN WG4 Meeting #98-e
Document Type:
Change Request
Specification:
3GPP TS 38.101-4
Current Specification Version:
16.3.0
Release:
Rel-16
CR Number:
0131
Revision:
1
Category:
B (addition of feature)
Source to WG:
CMCC
Source to TSG:
R4
Work Item Code:
NR_UE_pow_sav-Perf
Affected Clauses:
5.3.2.2.3 (New); 5.3.3.2.3 (New)
Affected Specifications:
TS38.521-4
Technical Domain:
Radio Access Network
Subject:
Demodulation performance requirements for power saving UE in FR1 TDD using PDCCH DCI format 2_6
Test Scope:
FR1 TDD PDCCH monitoring and demodulation performance during DRX operation
Year:
2021
Region:
Global
Topic:
Telecommunications, 5G NR
Document Type:
Change Request
Organization:
3GPP TSG-RAN WG4
Author:
MediaTek
Target Audience:
Network equipment manufacturers, test engineers
Work Item Code:
NR_UE_pow_sav-Perf
Release:
Rel-16
Category:
B (addition of feature)
Date Submitted:
2021-01-15
Affected Sections:
5.3.2.1.3, 5.3.3.1.3
Related Specifications:
TS38.101-4, TS38.521-4
Change Purpose:
Define demodulation performance requirements for power saving UE
Revision History:
Revised from draft CR R4-2102086
Organization:
3GPP TSG-RAN WG1
Meeting:
RAN1#124
Location:
Gothenburg, Sweden
Dates:
9–13 February 2026
Document Number:
R1-2601524
Agenda Item:
10.5.2.1
Work Item:
FS_6G_Radio
Document Type:
Technical meeting summary
Title in Document:
Feature Lead summary #1 on PDCCH Transmission Schemes
Source:
Moderator (Nokia)
Topic:
Downlink transmission schemes for downlink control channels in 6G
Technical Focus:
PDCCH transmission design concepts and proposals
Related Technologies:
6G radio access, PDCCH, CORESET, CCE, REG, blind decoding
Number of Contributions Reviewed:
33
Participating Organizations:
Nokia, Qualcomm, Huawei, Samsung, Apple, Ericsson, Google, ZTE, Sony, Panasonic, MediaTek and others
Purpose:
Facilitation of discussion and organization of submitted proposals during the meeting
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:
2022
Region / city:
N/A
Subject:
Extension of unified TCI framework for MTRP
Document type:
Summary
Organization:
3GPP TSG RAN WG1
Author:
Moderator (MediaTek)
Target audience:
Companies involved in RAN1 activities
Period of validity:
N/A
Approval date:
N/A
Amendment date:
N/A
Year:
2020
Region / City:
E-meeting
Theme:
Telecommunications
Document Type:
Technical Proposal
Author:
Huawei, HiSilicon
Target Audience:
Industry professionals in telecommunications
Period of validity:
August 17th – 28th, 2020
Approval Date:
Not specified
Modification Date:
Not specified
Note:
Context
Year:
2022
Event:
3GPP TSG RAN WG1 #109-e e-Meeting
Agenda item:
9.1.1.1
Source:
Moderator (MediaTek)
Type of document:
Meeting summary / technical report
Topic:
Extension of unified TCI framework for MTRP, multi-TRP UL and DL transmission
Document purpose:
Discussion and decision
Contributors:
Ericsson, Samsung, Docomo, vivo, Qualcomm, ZTE, MTK, CATT, NEC, Lenovo, Intel, Huawei, Apple, Nokia, OPPO, Futurewei, Spreadtrum, Sony, LGE, ITRI, TransHold, Fraunhofer, Fujitsu, CMCC, CEWiT
Targeted devices:
CPE, FWA, vehicle, industrial devices
Key focus:
Rel-17 and Rel-18 MTRP schemes, UL and DL TCI state updates, single and multi-DCI operation
Document Type:
Meeting Report
Organization:
3GPP TSG RAN WG1
Date:
August 17–28, 2020
Reference ID:
R1-200abcd
Scope:
CSI enhancements for MTRP and FR1 FDD reciprocity
Frequency Range:
FR1
Duplex Mode:
FDD
Scenario:
Dense Urban Macro
Antenna Configuration:
gNB 16–32 ports, UE 2–4 RX
Evaluation Metrics:
Throughput and CSI feedback overhead
MIMO Scheme:
SU-MIMO / MU-MIMO with rank adaptation
Channel Modeling:
FDD DL/UL reciprocity, Options 1 and 2
Companies Participating:
19 companies including VIVO, Samsung, Ericsson, Nokia, Apple, Huawei/HiSi
Year:
2020
Region / city:
E-meeting
Topic:
CSI enhancements for MTRP and FR1 FDD reciprocity
Document Type:
Technical Report
Organization / institution:
Huawei, HiSilicon
Author:
Not specified
Target audience:
Industry professionals, technical experts
Period of validity:
Not specified
Approval date:
Not specified
Date of changes:
Not specified
Note:
Context
Year:
2020
Region / City:
E-meeting
Topic:
CSI enhancements, MTRP, FDD reciprocity
Document Type:
Technical Discussion Summary
Organization:
Huawei, HiSilicon
Author:
Not specified
Target Audience:
3GPP TSG RAN WG1 members
Effective Period:
August 17th – 28th, 2020
Approval Date:
Not specified
Modification Date:
Not specified
Evaluation Assumptions:
MTRP, FR1 FDD reciprocity, CSI reporting for DL multi-TRP/panel transmission
Frequency Range:
FR1, 2GHz, optional for 4GHz
Antenna Setup:
Various configurations for gNB and UE
Traffic Model:
FTP model 1, packet size 0.5 Mbytes
Simulation Bandwidth:
20 MHz for 15kHz
MIMO Scheme:
SU/MU-MIMO with rank adaptation
Feedback Assumption:
Periodic CSI feedback
Overhead Assumption:
DNL overhead for CSI
UE Distribution:
80% indoor, 20% outdoor
CSI Feedback Periodicity:
5ms
SRS Modeling:
5ms/10ms periodicity
Evaluation Metric:
Throughput and CSI feedback overhead
Baseline:
Rel-16 PS eTypeII Codebook
SRS Configuration:
Configuration details for different models
FDD DL/UL Calibration:
Ongoing discussions on error model
Channel Modeling:
Discussion on FDD reciprocity models
Context Description:
Technical discussion on CSI enhancements for FDD reciprocity, focusing on MTRP and FR1 with contributions from various companies.
Year:
2022
Region / City:
Global
Topic:
Wireless communication; CSI reporting enhancements
Document Type:
Meeting report / Technical specification proposal
Organization:
3GPP TSG RAN WG1
Author:
Huawei, HiSilicon (Moderator)
Audience:
RAN1 working group members and participating companies
Meeting Dates:
February 21 – March 3, 2022
Agenda Item:
8.1.4
Proposals:
Further enhancement, correction, editorial changes
Target Release:
Rel-17
Frequency Range:
FR1, FR2
Technologies:
MTRP, FDD, CSI-RS, Type II port selection
Companies Contributing:
Lenovo, Samsung, Vivo, CATT
Year:
2024
Location:
Athens, Greece
Event:
3GPP TSG RAN WG1 #116 Meeting
Agenda Item:
9.2.4
Document ID:
R1-2401491
Document Type:
Technical meeting summary
Organization:
3GPP TSG RAN Working Group 1
Source:
Moderator (OPPO)
Subject Area:
5G NR radio access technology
Technical Topic:
Rel-19 NR MIMO Phase 5 asymmetric DL sTRP / UL mTRP deployment scenarios
Frequency Range:
FR1 and FR2
Key Technical Aspects:
pathloss offset configuration, unified TCI framework, MAC CE updates, closed-loop power control for SRS, TPC command value range study
Contributing Companies:
Samsung, Huawei, HiSilicon, InterDigital, Lenovo, vivo, TCL, ZTE, China Telecom, Intel, CATT, NEC, MediaTek, Ericsson, Xiaomi, OPPO, Fujitsu, Sony, LG Electronics, Nokia, Nokia Shanghai Bell, Panasonic, Apple, Sharp, Hyundai Motor Company, NTT DOCOMO, Google, Qualcomm
Discussion Focus:
pathloss offset configuration and closed-loop power control for SRS in asymmetric DL sTRP / UL mTRP scenarios
Year:
2020
Region / City:
California
Subject:
Reliability requirements for resource adequacy and capacity procurement
Document Type:
Business Practice Manual
Organization / Institution:
California ISO
Author:
Dede Subakti
Target Audience:
Load-serving entities, capacity procurement participants
Period of validity:
From 05/01/18
Approval Date:
03/27/09
Date of last revision:
10/05/2020
Year:
2023
Region / city:
United States
Topic:
Extreme Cold Weather Preparedness
Document type:
Audit worksheet
Organization:
North American Electric Reliability Corporation (NERC)
Author:
Compliance Enforcement Authority (CEA)
Target audience:
Registered entities subject to NERC standards
Period of validity:
Ongoing
Approval date:
N/A
Date of modifications:
N/A