№ files_lp_4_process_1_48394
File format: docx
Character count: 32856
File size: 348 KB
Version:
0.45.0
Year:
2025
Region / City:
Global
Theme:
Ultra-Low Bitrate Communication for Voice over GEO Satellites
Document Type:
Technical Report
Organization / Institution:
3GPP
Author:
Not specified
Target Audience:
3GPP Working Groups, Telecom Engineers
Effective Period:
Ongoing
Approval Date:
2025-05-23
Date of Changes:
2026-02-xx03
Context:
A technical document outlining the study and development of ultra-low bitrate speech codecs for voice communication via geostationary satellites, including performance requirements, test methodologies, and application scenarios.
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Year:
2025
Region / City:
Online
Topic:
AI Codec Complexity, Mobile Devices
Document Type:
Discussion Paper
Organization / Institution:
3GPP TSG-SA WG4
Author:
vivo
Target Audience:
Industry professionals, engineers, researchers
Period of Validity:
N/A
Approval Date:
N/A
Date of Changes:
N/A
Year:
2024
Region / city:
N/A
Topic:
Ultra-low bit rate codec for voice over GEO
Document type:
Study report
Organization / institution:
3GPP
Author:
N/A
Target audience:
Technical experts in voice codecs and GEO satellite communication
Period of validity:
N/A
Approval date:
March 2024
Amendment date:
N/A
Year:
2025
Region / City:
Fukuoka, Japan
Topic:
Speech Codec Testing
Document Type:
Discussion and Agreement
Organization:
3GPP SA4
Author:
Dolby Laboratories Inc., Novamint
Target Audience:
Technical experts in speech codecs
Effective Period:
May 2025
Approval Date:
Not specified
Modification Date:
Not specified
Year:
2025
Region / City:
Online
Topic:
Codec Design, AI, Speech Processing
Document Type:
Discussion Paper
Organization / Institution:
Dolby Laboratories Inc., Nokia, Xiaomi Technology, Orange
Author:
Not specified
Target Audience:
3GPP working groups, codec developers
Period of Validity:
2025
Approval Date:
Not specified
Date of Changes:
Not specified
Note:
Context description
Year:
2025
Region / City:
Japan, Fukuoka
Topic:
Ultra-low bit rate speech codecs, Test methodologies
Document Type:
Discussion and Agreement
Organization:
3GPP SA4
Author:
Dolby Laboratories Inc., Novamint
Target Audience:
Engineers and researchers in speech coding
Period of Validity:
N/A
Approval Date:
N/A
Date of Changes:
N/A
Source:
Rapporteur FS_ULBC
Version:
0.12.20
Agenda item:
7.9
Document for:
Agreement
Revision history:
0.1.0–0.2.0 (2025-05-23 to 2025-07-25)
Meetings:
SA4#132, SA4#133-e
Related TR:
3GPP TR 26.940 “Study on Ultra Low Bitrate Speech Codecs”
Related specifications:
3GPP TS 26.132; 3GPP TR 38.811; 3GPP TR 38.821; TR 36.321; 3GPP TR 36.763
Study item reference:
SP-250378 “SID on Ultra Low Bitrate Speech Codec”
Scope:
Ultra-low bit rate speech codec for voice over Geostationary Orbit (GEO) satellites
Working group:
3GPP SA4
Scenario focus:
IMS Voice Call over GEO
Technical aspects:
Bit rates; sample rate and audio bandwidth; frame length; complexity and memory demands; algorithmic delay; packet loss concealment; discontinuous transmission; speech quality; robustness to non-speech input
Channel assumptions:
Limited data rate (1–3 kbit/s); GEO satellite access; increased uplink and downlink delay; transmission errors
Coordination:
SA2, RAN, CT1 and other 3GPP groups
Document type:
Permanent document (p-doc) supporting a Technical Report
Year:
2025
Region / City:
Global / 3GPP Members
Subject:
Telecommunications; NB-IoT; IMS Voice; GEO Satellite
Document Type:
Technical contribution / Agreement
Organization:
3GPP, vivo Mobile Communication Co.
Authors:
Contributors from vivo, China Mobile, MediaTek, ZTE, Verizon, Ericsson, CATT, Nokia, Skylo, Thales, China Telecom, Spreadtrum, Xiaomi, OPPO, China Unicom, LG Electronics, Apple, Samsung, NTT DOCOMO, CSCN, SHARP
Target Audience:
3GPP Working Groups RAN1, RAN2, SA2, SA4
Period of Effect:
2025 – until next update
Approval Date:
August 2025
References:
3GPP TR 23.700-19, TS 26.132, TR 36.321, TR 36.763, TR 38.811, TR 38.821, FS_ULBC Tdocs
Year:
2026
Location:
Goa, India
Topic:
Ultra Low Bitrate Speech Codec Feasibility Study
Document Type:
Meeting Report / Study Plan
Organization:
3GPP TSG-SA WG4
Source:
China Mobile
Version:
0.65
Agenda Item:
16.27.8
Purpose:
Discussion and Agreement
Scope:
IMS Voice Call over GEO, Multi-Party Voice Communication, Vehicle Emergency Call Communication
Performance Metrics:
Speech quality, intelligibility, conversational quality, complexity, memory demands, algorithmic delay, PLC, noise suppression, DTX
Related Documents:
TR 22.887, Annex A Living Document, TR sections 4–9
Coordination:
SA2, RAN, CT1, other relevant 3GPP working groups
Timeline:
March 2025 – February 2026
Meetings:
SA4#131-bis-e, SA4#132, SA4#135, SA4#136, Audio SWG telco, TSG SA#107
Testing:
Subjective and objective methodologies, codec evaluation under clean and noisy conditions, GEO channel simulations
Year:
2025–2026
Region / City:
Global / 3GPP Collaboration
Subject:
Ultra Low Bitrate Speech Codec (ULBC) for GEO Satellite Voice Services
Document Type:
Technical Report / Working Document
Organization:
3GPP SA4 Working Group
Author:
FS_ULBC Rapporteur Team
Target Audience:
Telecom engineers, standardization participants
Revision History:
Detailed per version from 0.1.0 to 0.6.0 including clause updates, simulation models, and design considerations
Applicable Standards:
3GPP TR 26.940, TS 26.132, TR 38.811, TR 38.821, TS 23.700-19
Scope:
ULBC design constraints, simulation methodologies, performance requirements, interoperability with IMS voice over GEO NTN
Methodology:
Clause-based updates, simulation results, reference codecs analysis, complexity and memory evaluation, design constraints validation
Related Contributions:
SP-250378, Tdoc S4-251390, S4aA250058, S4aA250259, S4aA250069, S2-2509293
Implementation Period:
Drafting and updates between May 2025 and February 2026
Additional Notes:
Excludes NB-IoT impacts; coordinates with multiple 3GPP groups
Year:
2026
Region / city:
Goa, India
Topic:
Feasible bitrates, NTN-TDL-C channel model
Document type:
Technical paper
Organization:
Qualcomm Incorporated, Xiaomi
Author:
Qualcomm Incorporated
Target audience:
SA4 working group members, 3GPP participants
Effective period:
February 9-13, 2026
Approval date:
Not provided
Date of changes:
Not provided
Program:
FHWA Emergency Relief (ER)
Document type:
Inspection and closeout checklist
Repair category:
Permanent repair
Issuing authority:
Federal Highway Administration
Intended use:
Field inspections and final project reviews
Project phase:
Final closeout
Authorization requirement:
FHWA project authorization prior to construction
Environmental compliance:
NEPA, permits, Section 106, ESA
Financial documentation:
Federal-aid eligible cost verification and final estimates
Construction compliance:
Buy America, Davis-Bacon, materials certifications
Audit readiness:
Documentation retention and procurement compliance
Administrative reference:
DDIR, PS&E, federal-aid project agreements and forms
Note:
Year
Subject:
Immigration and Refugee Status Verification
Document Type:
Guide
Year:
2011
Region / city:
Washington State
Topic:
Housing Assistance
Document Type:
Policy Guide
Agency:
HCS Office of Housing and Employment (OHAE)
Author:
Jonnie Matson, Ian Harpole
Target Audience:
HCS clients, Housing Authorities, Case Managers
Period of Validity:
Not specified
Approval Date:
Not specified
Amendment Date:
Not specified
Year:
2015
Region/City:
Charlotte-Mecklenburg
Topic:
Housing, Homelessness, Social Services
Document Type:
Application Form
Organization/Institution:
Charlotte-Mecklenburg Continuum of Care (CoC)
Author:
U.S. Department of Housing and Urban Development (HUD)
Target Audience:
Individuals and households experiencing chronic homelessness
Duration:
Ongoing
Approval Date:
Not specified
Revision Date:
Not specified
Year:
2025
Region / City:
Online
Topic:
B2D format evaluation
Document Type:
Agreement
Organization:
3GPP TSG-SA WG4
Author:
Tencent
Target Audience:
Technical experts and members of the 3GPP TSG-SA WG4
Period of Validity:
2025
Approval Date:
11 - 18 April 2025
Date of Changes:
Not specified
Year:
2023
Region / City:
Georgia
Topic:
Environmental Review for Continuum of Care Projects
Document Type:
Environmental Review
Organization / Institution:
Georgia Housing and Finance Authority
Author:
Georgia Housing and Finance Authority
Target Audience:
Housing and urban development professionals, local government officials, and other stakeholders involved in HUD-funded projects
Period of Action:
N/A
Approval Date:
N/A
Date of Changes:
N/A
Context:
Environmental review document for a housing assistance project to ensure compliance with various federal regulations and laws.
Year:
2023
Region / City:
Alaska, Anchorage
Subject:
Permanent Fund Dividend Interception
Document Type:
Instructions
Organization:
Alaska Department of Revenue, Child Support Enforcement Division
Target Audience:
States requesting PFDO cases
Period of Validity:
2023
Approval Date:
January 09, 2023
Modification Date:
N/A
Note:
Year
Region / City:
Ohio
Subject:
Legal Form, Child Custody
Document Type:
Legal Agreement
Organization / Institution:
Ohio Department of Job and Family Services
Author:
Ohio Department of Job and Family Services
Target Audience:
Parents/Guardians, Legal Authorities
Year:
2023
Region / City:
University Park, PA
Topic:
Property Management, Tangible Assets
Document Type:
Form
Organization:
Pennsylvania State University
Author:
Property Inventory Department
Target Audience:
University staff involved in asset disposition
Effective Period:
Ongoing
Approval Date:
Not specified
Modification Date:
Not specified
Context:
The document is a formal report form used by university staff to notify the Property Inventory department about the disposition or permanent transfer of tangible assets, including their relocation, sale, or destruction.