№ lp_1_2_51152
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Technical discussion paper summarizing company contributions and positions within 3GPP RAN2 on handling epoch time and validity timer T430 for NR-NTN UL synchronization in idle, inactive, and connected UE states.
Year:
2022
Meeting:
3GPP TSG-RAN WG2 Meeting #119bis-e
Dates:
10th–19th October 2022
Location:
Online
Agenda Item:
6.10.4.2
Source Organization:
Samsung
Contributing Organizations:
Samsung Research America; Apple; Huawei; HiSilicon; Sequans Communications; Ericsson; ASUSTeK; Xiaomi
3GPP Release:
Rel-17
Technical Area:
NR Non-Terrestrial Networks (NR-NTN)
Specification Reference:
TS 38.331
Document Type:
Technical discussion paper
Document Purpose:
Discussion and decision
Subject:
Epoch time handling and validity timer T430 for NR-NTN UL synchronization
Target Audience:
3GPP RAN2 participants
Standards Body:
3GPP
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The product description is provided for reference. Actual content and formatting may differ slightly.
Year:
2022
Region / City:
N/A
Topic:
Health / Medical
Document Type:
Informational
Author:
N/A
Target Audience:
Patients, Healthcare Professionals
Effective Period:
N/A
Approval Date:
N/A
Revision Date:
N/A
Description:
A list of possible side effects for the chemotherapy regimen EPOCH, including common, occasional, and rare side effects.
Year:
2021
Region / City:
International
Topic:
Climate science, solar forcing, temperature attribution
Document type:
Scientific critique / meta-analysis
Organization:
Climate Feedback, Research in Astronomy and Astrophysics
Author:
Multiple international researchers (Connolly et al.)
Target audience:
Scientific community, media fact-checkers
Period covered:
Mid-19th century to present
Date of publication:
2021
Related articles:
Alex Newman, The Epoch Times; IPCC AR5 and AR6 reports
Framework used:
Science Feedback claim-level review methodology
Key focus:
Evaluation of fact-checking claims regarding solar vs. anthropogenic contributions to recent global warming
Year:
2009
Region / city:
N/A
Topic:
Power Management, Software Development
Document Type:
White Paper
Organization:
Microsoft Corporation
Author:
Microsoft Corporation
Target Audience:
Software developers, system administrators, hardware engineers
Effective Period:
N/A
Approval Date:
January 20, 2009
Modification Date:
N/A
Year:
2019
Region / City:
San Jose, CA
Topic:
Wireless LANs, EDCA, MU EDCA Timer
Document Type:
Technical Paper
Organization / Institution:
IEEE
Author:
Zhou Lan, Chunyu Hu, Matthew Fischer, Laurent Cariou, Chittabrata Ghosh, Jarkko Kneckt
Target Audience:
Wireless Networking Engineers, IEEE Members
Period of Validity:
N/A
Approval Date:
2019-05-10
Date of Changes:
N/A
Year:
2023
Region / City:
National
Topic:
Swimming Championship
Document Type:
Registration Form
Organization / Institution:
YMCA
Author:
YMCA
Target Audience:
Volunteers for swimming events
Effective Period:
July 2023
Approval Date:
Not specified
Revision Date:
Not specified
Context:
A registration form for volunteers participating in the YMCA National Long Course Swimming Championship.
Year:
2022
Meeting:
3GPP TSG-RAN WG2 #117-e
Meeting Type:
Electronic meeting
Meeting Period:
21 February – 3 March 2022
Agenda Item:
4.1
Document Number:
R2-2203572
Source:
Ericsson (Rapporteur)
Contact Person:
Emre A. Yavuz ([email protected]
Note:
)
Organization:
3GPP TSG-RAN WG2
Topic:
NB-IoT R15, 2 HARQ processes and HARQ RTT timer
Related Documents:
R2-2203480; R2-2203486; R2-2203495; R2-2203496
Document For:
Discussion, Decision
Scope:
Discussion of whether correction is needed and work on the related CRs
Intended Outcome:
Report and revised CRs if needed
Deadline:
24 February 2022 12:00 UTC
Type of Document:
Technical meeting report and discussion paper
Year:
2022
Organization:
3GPP TSG-CT WG1
Document type:
Change Request (CR)
Work item code:
5MBS
Source:
MediaTek Inc.
Release:
Rel-17
Category:
B (addition of feature)
Affected components:
UICC apps, ME, Radio Access Network, Core Network
Clauses affected:
6.3.2.3
Revision:
1
Date of submission:
2022-01-18
Year:
2026
Region / City:
Gothenburg, Sweden
Topic:
UICC apps, ME, Radio Access Network, Core Network
Document Type:
Change Request
Organization / Institution:
3GPP TSG-RAN WG3
Author:
Google, Huawei, Ericsson, Nokia, LG Electronics, NEC, CATT, ZTE, Samsung, China Telecom, Qualcomm, Ofinno
Target Audience:
Technical experts, telecom network engineers
Period of validity:
2026-01-30 to 2026-02-13
Approval Date:
2026-01-30
Revision Date:
2026-01-30
Release:
Rel-19
Category:
F (correction)
Work item code:
NR_Mob_Ph4-Core
Year:
2026
Region / city:
Gothenburg, Sweden
Topic:
Timer issue correction for inter-SN LTM
Document type:
Change Request
Organization:
3GPP
Author:
Google, Huawei, Ericsson, Nokia, LG Electronics, NEC, CATT, ZTE, Samsung, China Telecom, Qualcomm, Ofinno, NTT DoCoMo
Target audience:
Technical working groups, network engineers, 3GPP members
Period of validity:
2026-02-09 to 2026-02-13
Approval date:
Pending
Modification date:
None
Impact Analysis:
This change has isolated impact from the previous specification version, affecting only the timer and LTM procedure.
Consequences if not approved:
The MN may incorrectly release the SN due to timer expiration for LTM.
Note:
Year
Theme:
Timing Instructions
Document Type:
Manual
Target Audience:
Timer personnel, event organizers
Event:
Swimming competitions
Year:
Not specified
Region / City:
Not specified
Subject:
Electronics, Circuit Design
Document Type:
Technical Manual
Organization / Institution:
Not specified
Author:
Not specified
Target Audience:
Electronics enthusiasts, engineers
Period of Action:
Not specified
Approval Date:
Not specified
Modification Date:
Not specified
Year:
2026
Institution:
University / Training Center (unspecified)
Course:
System-on-Chip Design
Type:
Laboratory Manual
Target Audience:
Students and engineers learning SoC implementation
Hardware:
Diligent BASYS 3 FPGA, VGA monitor, switches, LEDs
Software:
Xilinx Vivado, Keil uVision, TeraTerm
Processor:
ARM Cortex-M0
Peripherals:
Timer, GPIO, 7-Segment Display, UART, VGA
Memory:
BRAM 16MB
Bus:
AHB-Lite
Learning Objectives:
Implement and debug SoC peripherals, modify assembly code, display timer values
Lab Number:
7
Issue:
1.0
Extension Tasks:
Additional timer modes, GPIO mask register, 7-segment display modes