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Content for  TR 23.780  Word version:  14.0.0

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1  Scopep. 9

The objective of this technical report is to study how mission critical communication services utilize MBMS. This may include study of modifications to the MCPTT architectures and/or procedures as specified in TS 23.179. This technical report will identify any enhancements needed to support mission critical services delivered over MBMS, based on the stage 1 requirements, including TS 22.179, TS 22.280, TS 22.281 and TS 22.282.
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2  Referencesp. 9

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]
TS 22.280: "Mission Critical Services Common Requirements (MCCoRe); Stage 1".
[4]
TS 22.281: "Mission Critical Video services over LTE".
[5]
TS 22.282: "Mission Critical Data services over LTE".
[6]
TS 23.179: "Functional architecture and information flows to support mission critical communication services; Stage 2".
[7]
TS 23.203: "Policy and charging control architecture".
[8]
TS 23.246: "Multimedia Broadcast/Multicast Service (MBMS); Architecture and functional description".
[9]
TS 23.280: "Common functional architecture to support mission critical services; Stage 2".
[10]
TS 23.303: "Proximity-based services (ProSe); Stage 2".
[11]
TS 23.468: "Group Communication System Enablers for LTE (GCSE_LTE); Stage 2".
[12]
TS 23.746: "Study on System Architecture Enhancements to eMBMS for Television Video Service".
[13]
TS 24.379: "Mission Critical Push To Talk (MCPTT) call control; Protocol specification".
[14]
TS 24.380: "Mission Critical Push To Talk (MCPTT) media plane control; Protocol specification".
[15]
TS 25.446: "MBMS synchronisation protocol (SYNC)".
[16]
TS 26.346: "Multimedia Broadcast/Multicast Service (MBMS); Protocols and codecs".
[17]
TR 26.947: "Multimedia Broadcast/Multicast Service (MBMS); Selection and characterisation of application layer Forward Error Correction (FEC)".
[18]
TR 26.989: "Mission Critical Push To Talk (MCPTT); Media, codecs and Multimedia Broadcast/Multicast Service (MBMS) enhancements for MCPTT over LTE".
[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]
TS 36.321: "Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access Control (MAC) protocol specification".
[21]
TS 36.443: "Evolved Universal Terrestrial Radio Access Network (E-UTRAN); M2 Application Protocol (M2AP)".
[22]
TS 36.445: "Evolved Universal Terrestrial Radio Access Network (E-UTRAN); M1 data transport".
[23]
TS 36.508: "Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Packet Core (EPC); Common test environments for User Equipment (UE) conformance testing".
[24]
TR 36.868: "Evolved Universal Terrestrial Radio Access (E-UTRA); Study on group communication for E-UTRA".
[25]
TR 36.890: "Study on Support of single-cell point-to-multipoint transmission in LTE".
[26]
TR 36.912: "Feasibility study for Further Advancements for E-UTRA (LTE-Advanced)".
[27]
TR 36.942: "Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Frequency (RF) system scenarios".
[28]
RFC 3095:  "RObust Header Compression (ROHC): Framework and four profiles: RTP, UDP, ESP, and uncompressed".
[29]
RFC 3926:  "FLUTE - File Delivery over Unidirectional Transport".
[30]
RFC 4815:  "RObust Header Compression (ROHC): Corrections and Clarifications to RFC 3095".
[31]
RFC 5053:  "Raptor Forward Error Correction Scheme for Object Delivery".
[32]
RFC 5795:  "The RObust Header Compression (ROHC) Framework".
[33]
RFC 6363:  "Forward Error Correction (FEC) Framework".
[34]
RFC 6865:  "Simple Reed-Solomon Forward Error Correction (FEC) Scheme for FECFRAME".
[35]
RP-151110: "New WI proposal: Support of single-cell point-to-multipoint transmission in LTE".
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3  Definitions and abbreviationsp. 10

3.1  Definitionsp. 10

For the purposes of the present document, the terms and definitions given in TR 21.905 apply.

3.2  Abbreviationsp. 10

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.
BM-SC
Broadcast-Multicast Service Centre
GCS AS
Group Communication Service Application Server
GCSE
Group Communication System Enabler
FEC
Forward Error Correction
MBMS
Multimedia Broadcast and Multicast Service
MBMS SAI
MBMS Service Area Identity
MBSFN
MBMS Single Frequency Network
MCE
MBMS Coordination Entity
MCS
Mission Critical Service
MCPTT
Mission Critical Push To Talk
PDB
Packet Delay Budget
PCC
Policy and Charging Control
PLMN
Public Land Mobile Network
QoS
Quality of Service
RAN
Radio Access Network
SC-PTM
Single Cell-Point To Multipoint
TMGI
Temporary Mobile Group Identity
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