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26.171 | Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; General description | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.171/26171-e00.zip | |
26.173 | ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec | TS | 14.1.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.173/26173-e10.zip | |
26.174 | Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec test sequences | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.174/26174-e00.zip | |
26.177 | Speech Enabled Services (SES); Distributed Speech Recognition (DSR) extended advanced front-end test sequences | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.177/26177-e00.zip | |
26.179 | Mission Critical Push To Talk (MCPTT); Codecs and media handling | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.179/26179-e00.zip | |
26.190 | Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Transcoding functions | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.190/26190-e00.zip | |
26.191 | Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Error concealment of erroneous or lost frames | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.191/26191-e00.zip | |
26.192 | Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Comfort noise aspects | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.192/26192-e00.zip | |
26.193 | Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Source controlled rate operation | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.193/26193-e00.zip | |
26.194 | Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Voice Activity Detector (VAD) | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.194/26194-e00.zip | |
26.201 | Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Frame structure | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.201/26201-e00.zip | |
26.202 | Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Interface to Iu, Uu and Nb | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.202/26202-e00.zip | |
26.204 | Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; ANSI-C code | TS | 14.1.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.204/26204-e10.zip | |
26.223 | Telepresence using the IP Multimedia Subsystem (IMS); Media handling and interaction | TS | 14.4.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.223/26223-e40.zip | |
26.226 | Cellular text telephone modem; General description | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.226/26226-e00.zip | |
26.230 | Cellular text telephone modem; Transmitter bit exact C-code | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.230/26230-e00.zip | |
26.231 | Cellular text telephone modem; Minimum performance requirements | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.231/26231-e00.zip | |
26.233 | Transparent end-to-end Packet-switched Streaming service (PSS); General description | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.233/26233-e00.zip | |
26.234 | Transparent end-to-end Packet-switched Streaming Service (PSS); Protocols and codecs | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.234/26234-e00.zip | |
26.237 | IP Multimedia Subsystem (IMS) based Packet Switch Streaming (PSS) and Multimedia Broadcast/Multicast Service (MBMS) User Service; Protocols | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.237/26237-e00.zip | |
26.243 | ANSI-C code for the fixed-point distributed speech recognition extended advanced front-end | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.243/26243-e00.zip | |
26.244 | Transparent end-to-end packet switched streaming service (PSS); 3GPP file format (3GP) | TS | 14.1.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.244/26244-e10.zip | |
26.245 | Transparent end-to-end Packet switched Streaming Service (PSS); Timed text format | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.245/26245-e00.zip | |
26.246 | Transparent end-to-end Packet-switched Streaming Service (PSS); 3GPP SMIL language profile | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.246/26246-e00.zip | |
26.247 | Transparent end-to-end Packet-switched Streaming Service (PSS); Progressive Download and Dynamic Adaptive Streaming over HTTP (3GP-DASH) | TS | 14.6.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.247/26247-e60.zip | |
26.267 | eCall data transfer; In-band modem solution; General description | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.267/26267-e00.zip | |
26.268 | eCall data transfer; In-band modem solution; ANSI-C reference code | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.268/26268-e00.zip | |
26.269 | eCall data transfer; In-band modem solution; Conformance testing | TS | 14.1.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.269/26269-e10.zip | |
26.273 | ANSI-C code for the fixed-point Extended Adaptive Multi-Rate - Wideband (AMR-WB+) speech codec | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.273/26273-e00.zip | |
26.274 | Audio codec processing functions; Extended Adaptive Multi-Rate - Wideband (AMR-WB+) speech codec; Conformance testing | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.274/26274-e00.zip | |
26.281 | Mission Critical Video (MCVideo); Codecs and media handling | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.281/26281-e00.zip | |
26.290 | Audio codec processing functions; Extended Adaptive Multi-Rate - Wideband (AMR-WB+) codec; Transcoding functions | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.290/26290-e00.zip | |
26.304 | Extended Adaptive Multi-Rate - Wideband (AMR-WB+) codec; Floating-point ANSI-C code | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.304/26304-e00.zip | |
26.307 | Presentation layer for 3GPP services | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.307/26307-e00.zip | |
26.346 | Multimedia Broadcast/Multicast Service (MBMS); Protocols and codecs | TS | 14.8.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.346/26346-e80.zip | |
26.347 | Multimedia Broadcast/Multicast Service (MBMS); Application Programming Interface and URL | TS | 14.2.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.347/26347-e20.zip | |
26.401 | General audio codec audio processing functions; Enhanced aacPlus general audio codec; General description | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.401/26401-e00.zip | |
26.402 | General audio codec audio processing functions; Enhanced aacPlus general audio codec; Additional decoder tools | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.402/26402-e00.zip | |
26.403 | General audio codec audio processing functions; Enhanced aacPlus general audio codec; Encoder specification; Advanced Audio Coding (AAC) part | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.403/26403-e00.zip | |
26.404 | General audio codec audio processing functions; Enhanced aacPlus general audio codec; Enhanced aacPlus encoder Spectral Band Replication (SBR) part | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.404/26404-e00.zip | |
26.405 | General audio codec audio processing functions; Enhanced aacPlus general audio codec; Encoder specification parametric stereo part | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.405/26405-e00.zip | |
26.406 | General audio codec audio processing functions; Enhanced aacPlus general audio codec; Conformance testing | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.406/26406-e00.zip | |
26.410 | General audio codec audio processing functions; Enhanced aacPlus general audio codec; Floating-point ANSI-C code | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.410/26410-e00.zip | |
26.411 | General audio codec audio processing functions; Enhanced aacPlus general audio codec; Fixed-point ANSI-C code | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.411/26411-e00.zip | |
26.412 | Source code for 3GP file format | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.412/26412-e00.zip | |
26.430 | Timed graphics | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.430/26430-e00.zip | |
26.441 | Codec for Enhanced Voice Services (EVS); General overview | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.441/26441-e00.zip | |
26.442 | Codec for Enhanced Voice Services (EVS); ANSI C code (fixed-point) | TS | 14.6.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.442/26442-e60.zip | |
26.443 | Codec for Enhanced Voice Services (EVS); ANSI C code (floating-point) | TS | 14.6.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.443/26443-e60.zip | |
26.444 | Codec for Enhanced Voice Services (EVS); Test sequences | TS | 14.6.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.444/26444-e60.zip | |
26.445 | Codec for Enhanced Voice Services (EVS); Detailed algorithmic description | TS | 14.7.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.445/26445-e70.zip | |
26.446 | Codec for Enhanced Voice Services (EVS); Adaptive Multi-Rate - Wideband (AMR-WB) backward compatible functions | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.446/26446-e00.zip | |
26.447 | Codec for Enhanced Voice Services (EVS); Error concealment of lost packets | TS | 14.3.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.447/26447-e30.zip | |
26.448 | Codec for Enhanced Voice Services (EVS); Jitter Buffer Management | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.448/26448-e00.zip | |
26.449 | Codec for Enhanced Voice Services (EVS); Comfort Noise Generation (CNG) aspects | TS | 14.1.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.449/26449-e10.zip | |
26.450 | Codec for Enhanced Voice Services (EVS); Discontinuous Transmission (DTX) | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.450/26450-e00.zip | |
26.451 | Codec for Enhanced Voice Services (EVS); Voice Activity Detection (VAD) | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.451/26451-e00.zip | |
26.453 | Codec for Enhanced Voice Services (EVS); Speech codec frame structure | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.453/26453-e00.zip | |
26.454 | Codec for Enhanced Voice Services (EVS); Interface to Iu, Uu, Nb and Mb | TS | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.454/26454-e00.zip | |
26.852 | Multimedia Broadcast/Multicast Service (MBMS); Extensions and profiling | TR | 14.2.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.852/26852-e20.zip | The present document identifies a set of profiles for based on the most relevant use cases for the usage of MBMS. It also studies the feasibility of using MBMS as a regular transport enabler through the definition of an MBMS URL scheme and the procedures to resolve such URL schemes. In addition, it identifies a set of APIs for controlling MBMS user service reception and retrieving resources that are delivered over MBMS. Finally, the present document also addresses the issue of defining QoE reporting for DASH over MBMS. |
26.880 | Study on MBMS usage and codecs for MC Video Service | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.880/26880-e00.zip | The present document describes the enhancements of MBMS for MCVideo service support. Codec(s) and media handling to enable delivery of MCVideo are documented. |
26.902 | Video codec performance | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.902/26902-e00.zip | |
26.903 | Improved video support for Packet Switched Streaming (PSS) and Multimedia Broadcast/Multicast Service (MBMS) Services | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.903/26903-e00.zip | |
26.904 | Improved video coding support | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.904/26904-e00.zip | |
26.905 | Mobile stereoscopic 3D video | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.905/26905-e00.zip | |
26.906 | Evaluation of High Efficiency Video Coding (HEVC) for 3GPP services | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.906/26906-e00.zip | |
26.907 | HTML5 for a new presentation layer in 3GPP services | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.907/26907-e00.zip | |
26.909 | Study on improved streaming Quality of Experience (QoE) reporting in 3GPP services and networks | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.909/26909-e00.zip | |
26.911 | Codec(s) for Circuit-Switched (CS) multimedia telephony service; Terminal implementor’s guide | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.911/26911-e00.zip | |
26.914 | Multimedia telephony over IP Multimedia Subsystem (IMS); Optimization opportunities | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.914/26914-e00.zip | |
26.916 | Media handling and Quality aspects of SRVCC | TR | 14.2.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.916/26916-e20.zip | Enhanced Single Radio - Voice Call Continuity (eSRVCC) is an existing standard ([3], [4]) specifying the handover of a Voice or Video call from LTE access to CS-radio access, either to GERAN (2G) or to UTRAN (3G) or other CS networks. The present document considers only enhanced SRVCC for voice calls between 3GPP accesses.
This study assumes that the Codecs defined in TS 26.114 are used on the LTE access and the Codecs defined in 3GPP TS 26.103 [7] on the CS accesses. Since Rel-13, the specifications for CS networks include the Codec Type UMTS_EVS with several Configurations, called UMTS_EVS (Set 0) to UMTS_EVS (Set 3).
In the IMS Core Network, the voice call is typically anchored in the ATCF/ATGW (Access Transfer Control Function/ Access Transfer Gate Way).
The eSRVCC procedure, as specified, may cause additional transcoding between the target radio leg and the ATGW, even though in theory it would be possible to avoid it. As a result, the eSRVCC procedures may add one or more unnecessary transcoding point(s) for the call and thereby degrade the quality of the ongoing call unnecessarily.
The main objectives of this study are to analyse example call scenarios and find potential solutions to minimize the number of transcoding cases. Another objective is to optimize the interworking and the transition between EVS and AMR-WB during eSRVCC. The study should also show the reasons and potential solutions for too long speech path interruptions during eSRVCC.
The present Technical Report has the following detailed objectives:
- Identify relevant eSRVCC scenarios, especially with Codec Mode Control;
from AMR-WB and/or EVS in VoLTE to AMR-WB and/or EVS in CS;
but include also other important Codecs, such as AMR and G.722.
- Analyse Speech Quality Aspects and Media Handling Aspects, based on these scenarios.
- Analyse Codec Mode Control before, during and after eSRVCC;
recently SA4 has clarified some essential details on Rate Control for AMR and AMR-WB;
Rate Control and Audio Bandwidth Control for EVS are still under discussion to some extent.
- Analyse the existing SDP Offer - Answer protocol between Target MSC and Anchor-ATCF during eSRVCC,
as specified in 3GPP TS 23.216 [3], Stage 2;
This analysis will include the whole eSRVCC procedure for at least one essential scenario
(e.g. eSRVCC to GERAN) and will identify the potential reasons for transcoding and too long speech path interruptions.
- Clarify the existing Codec Compatibility aspects for eSRVCC;
especially the interworking between CS and IMS for AMR, AMR-WB and EVS needs to be documented.
- Propose enhancements for media and quality aspects of eSRVCC with the aims:
a) to avoid transcoding cases as much as possible;
b) to minimize the speech path interruption time during eSRVCC;
- Support the SA2 SETA work by SA4 expertise in speech quality and media handling. |
26.917 | Multimedia Broadcast Multicast Services (MBMS) and Packet-switched Streaming Service (PSS) enhancements to support television services | TR | 1.3.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.917/26917-130.zip | |
26.922 | Video telephony robustness improvements extensions; Performance evaluation | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.922/26922-e00.zip | |
26.923 | Study on media handling aspects of IP Multimedia Subsystem (IMS) based telepresence | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.923/26923-e00.zip | |
26.924 | Multimedia telephony over IP Multimedia Subsystem (IMS); Study on improved end-to-end Quality of Service (QoS) handling for Multimedia Telephony Service for IMS (MTSI) | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.924/26924-e00.zip | |
26.935 | Packet Switched (PS) conversational multimedia applications; Performance characterisation of default codecs | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.935/26935-e00.zip | |
26.936 | Performance characterization of 3GPP audio codecs | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.936/26936-e00.zip | |
26.937 | Transparent end-to-end Packet-switched Streaming Service (PSS); Real-time Transport Protocol (RTP) usage model | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.937/26937-e00.zip | |
26.938 | Packet-switched Streaming Service (PSS); Improved support for dynamic adaptive streaming over HTTP in 3GPP | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.938/26938-e00.zip | |
26.943 | Recognition performance evaluations of codecs for Speech Enabled Services (SES) | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.943/26943-e00.zip | |
26.944 | End-to-end multimedia services performance metrics | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.944/26944-e00.zip | |
26.946 | Multimedia Broadcast/Multicast Service (MBMS) user service guidelines | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.946/26946-e00.zip | |
26.947 | Multimedia Broadcast/Multicast Service (MBMS); Selection and characterisation of application layer Forward Error Correction (FEC) | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.947/26947-e00.zip | |
26.948 | Study on video enhancements in 3GPP multimedia services | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.948/26948-e00.zip | |
26.949 | Video formats for 3GPP services | TR | 14.1.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.949/26949-e10.zip | |
26.950 | Study on Surround Sound codec extension for Packet Switched Streaming (PSS) and Multimedia Broadcast/Multicast Service (MBMS) | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.950/26950-e00.zip | |
26.952 | Codec for Enhanced Voice Services (EVS); Performance characterization | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.952/26952-e00.zip | |
26.953 | Interactivity support for 3GPP-based streaming and download services | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.953/26953-e00.zip | |
26.954 | Test plan for speech quality and delay through a headset electrical interface | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.954/26954-e00.zip | |
26.957 | Study on Server And Network-assisted Dynamic Adaptive Streaming over HTTP (DASH) (SAND) for 3GPP multimedia services | TR | 14.1.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.957/26957-e10.zip | |
26.967 | eCall data transfer; In-band modem solution | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.967/26967-e00.zip | |
26.969 | eCall data transfer; In-band modem solution; Characterization report | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.969/26969-e00.zip | |
26.975 | Performance characterization of the Adaptive Multi-Rate (AMR) speech codec | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.975/26975-e00.zip | |
26.976 | Performance characterization of the Adaptive Multi-Rate Wideband (AMR-WB) speech codec | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.976/26976-e00.zip | |
26.978 | Results of the Adaptive Multi-Rate (AMR) noise suppression selection phase | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.978/26978-e00.zip | |
26.980 | Multimedia telephony over IP Multimedia Subsystem (IMS); Media handling aspects of multi-stream multiparty conferencing for Multimedia Telephony Service for IMS (MTSI) | TR | 14.2.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.980/26980-e20.zip | |
26.981 | MBMS Extensions for Provisioning and Content Ingestion | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.981/26981-e00.zip | |
26.989 | Mission Critical Push To Talk (MCPTT); Media, codecs and Multimedia Broadcast/Multicast Service (MBMS) enhancements for MCPTT over LTE | TR | 14.0.0 | S4 | https://www.3gpp.org/ftp/Specs/archive/26_series/26.989/26989-e00.zip | |
27.001 | General on Terminal Adaptation Functions (TAF) for Mobile Stations (MS) | TS | 14.0.0 | C3 | https://www.3gpp.org/ftp/Specs/archive/27_series/27.001/27001-e00.zip | |
27.002 | Terminal Adaptation Functions (TAF) for services using asynchronous bearer capabilities | TS | 14.0.0 | C3 | https://www.3gpp.org/ftp/Specs/archive/27_series/27.002/27002-e00.zip |
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