№ files_lp_4_process_2_82036
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The document is a technical liaison statement detailing agreements and assumptions regarding the activation of SSB-less SCells, reference cells, and timing relationships in NR networks according to Rel-15 and Rel-18 specifications.
Year: 2025
Location: Gothenburg, Sweden
Subject: OD-SSB SCell reference for SSB-less SCell activation
Document type: Liaison Statement
Organization: 3GPP TSG-RAN WG4
Authors: [email protected], [email protected]
Intended audience: RAN1, RAN2, RAN4
Release: Rel-19
Work item: Netw_Energy_NR_enh-Core
Date of meeting: 8–13 February 2025
Next meetings: 13–17 April 2025, Malta; 18–22 May 2025, TBD, China
Attachments: None
Contact email: [email protected]
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Report of [Post113-e][224][DCCA] TCI state indication at direct SCell activation (MediaTek)
Year: 2021
Region / City: Unknown
Theme: 5G, RAN, SCell activation
Document type: Technical report
Organization / Institution: 3GPP TSG-RAN WG2
Author: MediaTek Inc.
Target audience: Companies involved in 5G network technology
Period of validity: Not specified
Approval date: Not specified
Date of modifications: Not specified
Summary#1 of efficient SCell activation/de-activation mechanism of NR CA
Year: 2021
Region / City: Not specified
Topic: NR CA, SCell activation, temporary RS
Document Type: Technical Paper
Organization / Institution: Huawei
Author: Moderator (Huawei)
Target Audience: Industry professionals, companies involved in NR CA
Period of Validity: Not specified
Approval Date: Not specified
Date of Changes: Not specified
Feature Lead Summary on L1-SINR and SCell BFR email thread #1
Year: 2020
Region / City: e-Meeting
Topic: 5G NR L1-SINR and SCell Beamforming Reports
Document Type: Meeting Contribution
Organization / Institution: 3GPP TSG RAN WG1
Author: Moderator (Apple)
Target Audience: Technical specialists and engineers in wireless communications
Effective Period: May 25th– June 5th, 2020
Approval Date: Not provided
Modification Date: Not provided
Note: Context
Change Request 1081 Rev.2 on Requirements for SCell Dormancy (3GPP TS 38.133 Rel-16)
Document type: Change Request
Specification: 3GPP TS 38.133
Release: Rel-16
Current version: 16.4.0
CR number: 1081
Revision: 2
Meeting: 3GPP TSG-RAN4 Meeting #96-e
Meeting format: Electronic Meeting
Meeting date: 17–28 August 2020
CR form version: CR-Form-v12.0
Work item code: LTE_NR_DC_CA_enh-Core
Category: F (correction)
Date: 2020-07-11
Source to WG: Huawei, HiSilicon
Source to TSG: R4
Affected clauses: 8.6.2, 8.6.2A
Technology: NR (New Radio)
Subject: SCell dormancy and BWP switch delay requirements
Draft Change Request on EN-DC NR SpCell in FR1 and Two NR SCells in FR2 for Dormant SCell Switch via DCI 2_6 (Rel-16, 2021-01-25)
Organization: 3GPP
Working Group: RAN WG4
Meeting: RAN WG4 Meeting #98-e
Meeting format: Electronic meeting
Meeting date: 2021-01-25 – 2021-02-05
Document type: Change Request
CR number: R4-2103567
Specification: 38.133
Current version: 16.6.0
Release: Rel-16
Category: B (addition of feature)
Title: DraftCR on EN-DC NR SpCell in FR1 and 2 NR SCells in FR2 for Dormant SCell switch via DCI 2_6 within and after 3 OFDM symbols
Source to WG: Qualcomm Incorporated
Source to TSG: R4
Work item code: LTE_NR_DC_CA_enh-Perf
Date: 2021-01-25
Affected clauses: A.5.5.x.y
Affected specifications: TS38.533, TS36.133
Related technology: EN-DC, NR FR1, NR FR2, E-UTRA
Test scenario: EN-DC configuration with one E-UTRA PCell, one NR FR1 PSCell, and three NR FR2 SCells
Purpose: Verification of dormant BWP switch delay and interruption requirements
Risk analysis for SCell Activation/Deactivation MAC CE at 3GPP TSG-SA3 Meeting #126, Goa, India, 9–13 February 2026
Year: 2026
Location: Goa, India
Organization: 3GPP TSG-SA3
Authors: Huawei, HiSilicon
Document Type: Meeting Contribution / Discussion Paper
Agenda Item: 5.3.11
Subject: Risk assessment of SCell Activation/Deactivation MAC CE
References: 3GPP TS 38.321, GSMA FSAG Doc 88_009, 3GPP S3-212305, Huawei MAC CE risk analysis
Target Audience: 3GPP SA3 participants
Risk Level: Low
Methodology: MAC CE risk analysis framework as per [4]
Draft CR on interruptions at A-TRS based SCell activation/deactivation (36.133)
Year: 2022
Date: 2022-04-14
Meeting: 3GPP TSG-RAN4 #103-e
Document type: Change Request
Source organization: Huawei, HiSilicon
Work item code: LTE_NR_DC_enh2-Core
Category: B
Release: Rel-17
Affected specifications: 36.133, TS36.521-3
Clauses affected: 7.32.2.X
Proposed change: Interruptions on LTE active serving cells during A-TRS based single SCell activation/deactivation
Consequences if not approved: Incomplete support of further Multi-RAT Dual-Connectivity enhancements
Context: Technical change request detailing interruption timing rules for LTE active serving cells during fast SCell activation or deactivation in EN-DC scenarios.
DraftCR TC for LBCA SCell activation and deactivation
Year: 2025
Region / city: Gothenburg, Sweden
Topic: UICC apps, Radio Access Network, Core Network
Document Type: Change Request
Organization / institution: 3GPP
Author: Nokia
Target Audience: TSG-RAN4, WG members
Validity period: Not specified
Approval date: 2025-01-30
Date of changes: Not specified
Draft CR on A-TRS based SCell activation and deactivated delay requirements with multiple downlink Scell
Year: 2022
Region / City: Global
Theme: LTE/NR Dual Connectivity
Document Type: Change Request
Author: Huawei, HiSilicon
Target Audience: Technical Working Groups
Release: Rel-17
Date of Approval: 2022-05-14
Change Request ID: 2347
Document Revision: 1
Affected Clauses: 8.3.16, 8.3.X
Reason for Change: Correction of activation delay parameters
Impact if Not Approved: Incomplete support of further Multi-RAT Dual-Connectivity enhancements
Categories Affected: Radio Access Network, Core Network
Core Specifications Affected: TS38.533
Test Specifications Affected: TS38.533
O&M Specifications Affected: Not specified
Context: A detailed specification of the delay requirements for activating a secondary cell (SCell) based on A-TRS, addressing multiple downlink SCells in LTE/NR environments.
Topics: OD-SSB 8–13 SCell