№ files_lp_4_process_3_128152
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Evaluation of ULBC performance with different codec bitrates, UE powers, and multiplexing schemes, providing technical data on achievable UE capacity and proposed TBS/codec bitrate configurations for 3GPP discussion.
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
Price: 8 / 10 USD
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Permanent Document FS_ULBC: Ultra Low Bitrate Speech Codec Study and Revision History
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
Miniaturized Electrophoresis Electrochemical Protein Sensor (MCEEPS) for multiplexed protein detections
Year: 2023
Region / city: Singapore
Topic: Protein detection, biosensors, electrophoresis
Document type: Research paper
Author(s): Patthara Kongsuphol, Gary C.F. Lee, Sunil K. Arya, Su Yin Chiam, Mi Kyoung Park
Institution: Institute of Microelectronics, Agency for Science Technology and Research (A*STAR)
Target audience: Researchers, professionals in biosensors and protein detection
Period of validity: N/A
Approval date: N/A
Modification date: N/A
Reply LS on Encoding of (S)RTP Multiplexed Media Identification Information
Year: 2025
Region / City: Online
Topic: Encoding of (S)RTP Multiplexed Media Identification Information
Document Type: Response to Liaison Statement
Organization: 3GPP
Author: Saba Ahsan
Target Audience: SA4, CT3
Period of Validity: 2025-2026
Approval Date: July 18, 2025
Date of Changes: None
Topics: 26940 Bitrate multiplexed