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Content for  TR 26.989  Word version:  16.0.0

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1  ScopeWord‑p. 6

The present document covers the enhancement required to support MCPTT.

2  References

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
  • References are either specific (identified by date of publication, edition number, version number, etc.) or non specific.
  • For a specific reference, subsequent revisions do not apply.
  • For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]
TS 22.179: "Mission Critical Push To Talk (MCPTT) over LTE; Stage 1"
[3]
TR 26.952: "Codec for Enhanced Voice Services (EVS);Performance Characterization".
[4]
TS 26.114: "IP Multimedia Subsystem (IMS); Multimedia Telephony; Media handling and interaction".
[5]
ITU-T Technical Paper - GSTP-GVBR, Performance of ITU-T G.718 (http://www.itu.int/pub/T-TUT) (http://www.itu.int/pub/publications.aspx-lang=en&parent=T-TUT-ASC-2010).
[6]
ETSI EN 300 395-2: "Terrestrial Trunked Radio (TETRA) Speech codec for full-rate traffic channel Part 2: TETRA codec", version 1.3.1 (25 January 2005).
[7]
TR 26.975: "Performance characterization of the Adaptive Multi-Rate (AMR) speech codec".
[8]
TR 46.055: "Performance characterization of the GSM Enhanced Full Rate (EFR) speech codec".
[9]  Void
[10]
RFC 3550:  "RTP: A Transport Protocol for Real-Time Applications".
[11]
TS 26.346: "Multimedia Broadcast/Multicast Service (MBMS); Protocols and codecs".
[12]
TS 23.468: "Group Communication System Enablers for LTE (GCSE_LTE); Stage 2".
[13]
TR 26.976: "Performance characterization of the Adaptive Multi-Rate Wideband (AMR-WB) speech codec".
[14]
TS 22.076: "Noise suppression for the AMR codec; Service description; Stage 1".
[15]
TS 26.131: "Terminal acoustic characteristics for telephony; Requirements".
[16]
NTIA Report 15-520: "Speech Codec Intelligibility Testing in Support of Mission-Critical Voice Applications for LTE", S.D. Voran & A.A. Catellier September 2015.
[17]  Void
[18]  Void
[19]
TS 36.300: "Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2".
[20]
TR 26.947: "Multimedia Broadcast/Multicast Service (MBMS); Selection and characterisation of application layer Forward Error Correction (FEC)".
[21]  Void
[22]  Void
[23]  Void
[24]
ITU-T Recommendation P.800 (08/1996): "Methods for subjective determination of transmission quality".
[25]
TS 26.442: "Codec for Enhanced Voice Services (EVS); ANSI C code (fixed-point)".
[26]
TS 26.448: "Codec for Enhanced Voice Services (EVS); Jitter buffer management".
[27]
ITU-T Recommendation P.807 (02/2016): "Subjective test methodology for assessing speech intelligibility".
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3  AbbreviationsWord‑p. 7

For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply.
An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
ADP
Associated Delivery Procedures
AS
Application Server
BC
Broadcast
BM-SC
Broadcast-Multicast - Service Centre
GCS
Group Communication Service
MCPTT
Mission Critical Push-To-Talk
MBMS
Multimedia Broadcast/Multicast Service
MBSFN
Multimedia Broadcast Single Frequency Network
MOS
Mean Opinion Score
NTIA
National Telecommunications & Information Administration
TETRA
TErrestrial Trunked Radio
SC-PTM
Single Cell-Point To Multipoint
SWB
Super Wide Band
UC
Unicast
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