№ files_lp_4_process_3_128124
File format: docx
Character count: 2980
File size: 32 KB
Technical specification detailing the minimum performance requirements for the ULBC codec in IMS voice services, including comparison with existing VoLTE codecs under various conditions.
Year:
2022
Organization:
Apple Inc.
Document type:
Technical specification
Target system:
IMS voice service over GEO and NGSO
Codec:
ULBC
Reference codecs:
AMR, AMR-WB, EVS AMR-WB-IO, EVS-WB/SWB
Bitrate range:
1–3 kbps
Performance conditions:
Clean speech, noisy speech, packet loss
Agenda item:
7.8
Purpose:
Discussion and agreement on minimum performance requirements
Price: 8 / 10 USD
The file will be delivered to the email address provided at checkout within 12 hours.
The file will be delivered to the email address provided at checkout within 12 hours.
Don’t have cryptocurrency yet?
You can still complete your purchase in a few minutes:- Buy Crypto in a trusted app (Coinbase, Kraken, Cash App or any similar service).
- In the app, tap Send.
- Select network, paste our wallet address.
- Send the exact amount shown above.
The final amount may vary slightly depending on the payment method.
The file will be sent to the email address provided at checkout within 24 hours.
The product description is provided for reference. Actual content and formatting may differ slightly.
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:
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
Year:
2025
Region / City:
Online
Topic:
Ultra Low Bitrate Speech Codec (ULBC), GEO channel characteristics
Document Type:
Liaison Statement (LS)
Organization / Institution:
3GPP SA4
Author:
Liangping Ma
Target Audience:
RAN WG1, RAN WG2, RAN WG4, SA WG2, CT WG1, satellite companies
Period of Validity:
July 18-25, 2025
Approval Date:
N/A
Date of Modifications:
N/A
Next Meeting Date:
July 21-25, 2025; November 11-17, 2025
Contact Person:
Liangping Ma
Contact Email:
lpma AT qti DOT qualcomm DOT com
Attachments:
S4aA2500691
Description:
Liaison statement detailing assumptions for the simulation of Ultra Low Bitrate Speech Codec and requests for feedback on simulation parameters and service-related dependencies from various working groups and satellite companies.
Year:
2026
Organizations:
Dolby Laboratories Inc., Nokia, Novamint
Document type:
Technical discussion paper
Intended for:
Discussion and Agreement
Agenda item:
7.8
Topic:
UE capability variability and ULBC system design
Target audience:
Technical experts in NB‑IoT and NTN systems
References:
Tdoc S4aA260006, TR 26.940
Key concepts:
UE transmit power classes, antenna configurations, multi-tone transmission, capability-aware scheduling, ULBC bitrate differentiation
Note:
Year
Topic:
Audio Processing, Noise Suppression, Codec Testing
Document Type:
Technical Report
Organization:
ITU-T
Author:
Apple Inc., Lenovo
Target Audience:
Audio engineers, codec developers, telecom professionals
Contextual description:
Technical report on ULBC codec testing in background noise, evaluating performance and challenges of noise suppression algorithms in various environments and conditions.
Year:
2024
Region / City:
Global
Topic:
Audio Codec Evaluation
Document Type:
Technical Report
Organization:
Apple Inc., Lenovo
Author:
Collaborative work of Apple and Lenovo engineers
Target Audience:
Audio codec developers, telecommunication engineers
Test Standards:
EVS codec testing TR 26.952, ITU-T P.800 DCR
Testing Scenarios:
Clean speech, stationary noise, non-stationary noise, NS processed speech
Purpose:
Evaluate robustness of ULBC codec under various noise conditions
Related Documents:
TR 26.940 Clause 9, TR26.989 v19.0.0
Testing Metrics:
SNR levels, subjective speech quality ratings
Year:
2024
Region / City:
Not specified
Subject:
Evaluation of complexity metrics for ULBC
Document type:
Technical report
Organization:
ITU-T
Author:
Not specified
Target audience:
Researchers and engineers working on codec complexity
Period of validity:
Not specified
Approval date:
Not specified
Date of last changes:
Not specified
Year:
2026
Location:
Goa, India
Topic:
Ultra Low Bitrate Speech Codecs and NB-IoT uplink evaluation
Document type:
Technical contribution / discussion document
Organization:
3GPP TSG SA WG4
Authors:
vivo, Samsung, Spreadtrum, MediaTek Inc.
Target audience:
3GPP working group members and telecom engineers
Agenda item:
7.8
Related specification:
3GPP TR 26.940 v0.4.0
Channel models:
50-degree and 10-degree elevation NTN-TDL-C
Codec bitrate range:
0.4–3 kbps
UE power levels analyzed:
23 dBm, 26 dBm, 31 dBm
Bundling periods considered:
80 ms, 160 ms, 320 ms
Multiplexing methods:
TDM and FDM
Reference systems:
Tiantong GEO NB-IoT system
Year:
2026
Region / City:
Goa, India
Topic:
Complexity estimation for ULBC
Document Type:
Technical specification
Organization / Institution:
3GPP
Author:
Fraunhofer IIS
Target Audience:
Researchers, engineers, codec developers
Period of Validity:
Ongoing
Approval Date:
9-13 February 2026
Revision Date:
None
Year:
2024
Region / Organization:
3GPP, Dolby Laboratories Inc., China Mobile, Qualcomm, Huawei, Xiaomi
Topic:
Ultra Low Bitrate Speech Codec evaluation and standardization
Document Type:
Technical report / study document
Authors:
T. Muller et al., 3GPP SA4 contributors
Target Audience:
Codec developers, standardization engineers, telecom researchers
Period of Validity:
Ongoing research and standardization as of 2024
Approval Date:
SA#107
References:
TR 26.940 v0.5.1, 3GPP SP-250378, SP-250635, S4-260144, S4-251814
Year:
2025
Region / City:
Birmingham
Topic:
Integrated Management System
Document Type:
Implementation Guideline
Organization:
Crystal Ware Dishwashers Ltd.
Author:
Not specified
Target Audience:
Users involved in Integrated Management System implementation
Effective Period:
Not specified
Approval Date:
2025/07/30
Revision Date:
Not specified
This document provides a comprehensive guideline for implementing an integrated management system based on ISO 9001:
2015, ISO 45001:2018, and ISO 14001:2015.
Year:
2020
Region / City:
Global
Topic:
Telecommunications
Document Type:
Change Request
Organization / Institution:
3GPP
Author:
Lenovo, Motorola Mobility
Target Audience:
WG1 members, 3GPP TSG
Period of Validity:
2020-08-13 to ongoing
Approval Date:
2020-08-13
Change Date:
N/A
Release:
Rel-16
Category:
F
Work Item Code:
TEI16
Proposed Change Affects:
UICC apps, ME, Radio Access Network, Core Network
Summary:
A Change Request to improve IMS session establishment by subscribing the P-CSCF to event notifications defined in TS 29.514 for EPS fallback.
Source:
Ericsson
Meeting:
3GPP TSG-WG SA2 #173
Agenda Item:
20.1.1
Work Item / Release:
FS_5GSAT_Ph4_ARC / Rel-20
Date:
February 09-13, 2026
Region:
Goa, India
Document Type:
Technical contribution / approval
Target Audience:
3GPP SA2 members
Key Issues:
KI#1 – non-IP transport and new RTP negotiation
Protocol Focus:
UE-EPC non-IP coordination, UE-IMS new RTP header
Standards Referenced:
TR 23.700-19, TS 29.303
Endorsement Status:
For approval
Year:
2026
Region / City:
Goa, India
Topic:
IMS signaling transport for GEO NB-IoT NTN access
Document Type:
Meeting Contribution
Organization / Institution:
3GPP
Author:
vivo
Target Audience:
3GPP TSG-SA WG2 members
Period of validity:
February 2026
Approval Date:
Not specified
Modification Date:
Not specified
Agenda Item:
20.1.1
Work Item / Release:
FS_5GSAT_Ph4_ARC / Rel-20
Abstract:
Updated conclusion on IMS signaling transport for GEO NB-IoT NTN access
Context:
Document proposing conclusions on IMS signaling transport for GEO NB-IoT NTN access.
Year:
Not specified
Region / City:
Not specified
Topic:
Quality, Health and Safety, Environmental Management
Document Type:
Job Description
Organization:
Not specified
Author:
Not specified
Target Audience:
Not specified
Period of Action:
Not specified
Approval Date:
Not specified
Date of Amendments:
Not specified
Year:
2024
Region / city:
Global
Topic:
IMS Data Channel API
Document type:
Specification
Organization / institution:
GSMA Association
Author:
GSMA
Target audience:
Developers, Telecom Engineers
Validity period:
Not specified
Approval date:
Not specified
Modification date:
Not specified
Year:
2022
Region / City:
Christchurch, New Zealand
Topic:
Integrated Management System, ISO Certification
Document Type:
Manual
Organization:
Mango Limited
Author:
Mango Limited
Target Audience:
Internal employees, partners, suppliers, and contractors
Period of validity:
Not specified
Approval Date:
Not specified
Date of last modification:
Not specified
Year:
2021
Region / city:
Elbonia
Subject:
Telecommunications
Document type:
Change Request
Organ / institution:
3GPP SA2
Author:
Qualcomm Incorporated, Ericsson
Target audience:
3GPP Working Group 2
Period of validity:
N/A
Approval date:
2021-02-24
Date of changes:
N/A
Category:
C
Release:
Rel-17
Reason for change:
Introducing changes in TS 23.501 for IMS voice support over SNPNs based on TR 23.700-07
Summary of change:
Support for IMS voice over PS support indication for SNPNP-CSCF address discovery and IMS voice when access is via PLMN
Clauses affected:
5.16.3.2, 5.16.3.4, 5.16.3.6, 5.30.2.8
Other specs affected:
N/A
Other comments:
N/A