Content for TR 23.782 Word version: 15.0.0
1 Scope p. 10
The objective of this technical report is to study and identify solutions suitable for interworking between LTE mission critical systems and non-LTE mission critical systems that satisfy the MCPTT requirements in TS 22.179 and the MCData requirements in TS 22.282 (SDS only).
The present document refers to an IWF entity as an editorial convenience. The structure and functionality of the IWF is out of scope of the present document. The definition of IWF-1 and interactions with IWF-1 by the MCPTT system and the definition of IWF-2 and interactions with IWF-2 by the MCData (SDS only) are in scope of the present document.
2 References p. 10
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]
ETSI EN 300 392 1: "Terrestrial Trunked Radio (TETRA); Voice plus Data; Part 1: General Network Design".
[4]
ITU T Recommendation E.218: "Management of the allocation of terrestrial trunk radio Mobile Country Codes".
[5]
TIA TSB 102 B: "Project 25 TIA 102 Document Suite Overview".
[6]
TIA TIA 102.AABC D: "Project 25 Trunking Control Channel Messages".
[7]
TIA TIA 102.BACA B: "Project 25 Inter-RF Subsystem Interface Messages and Procedures for Voice Services, Mobility Management, and RFSS Capability Polling Services".
[8]
TIA TIA 102.AABD B: "Project 25 Trunking Procedures".
[9]
ETSI EN 300 395-2: "Terrestrial Trunked Radio (TETRA): Speech codec for full-rate traffic channel; Part 2: TETRA codec".
[10]
TS 26.179: "MCPTT - Codecs and media handling".
[11]
TS 23.379: "Functional architecture and information flows to support Mission Critical Push To Talk (MCPTT); Stage 2".
[12]
ETSI ETS 300 392 11 22: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 11: Supplementary services stage 2; Sub-part 22: Dynamic Group Number Assignment (DGNA)".
[13]
TIA TIA-102.BABA: "Project 25 Vocoder Description".
[14]
TIA TIA-102.BABA-1: "Project 25 Half Rate Vocoder Addendum".
[15]
TIA TIA-102.AABH-B: "Project 25 Dynamic Regrouping Messages and Procedures".
[16]
ETSI TR 103 269-1: "TCCE Critical Communications Architecture; Part 1: Critical Communications Architecture Reference Model".
[17]
TS 23.280: "Common functional architecture to support mission critical services; Stage 2".
[18]
TS 23.282: "Functional architecture and information flows to support Mission Critical Data (MCData); Stage 2".
[19]
TS 24.383: "Mission Critical Push To Talk (MCPTT) Management Object".
[20]
TS 22.282: "Mission Critical Data services over LTE".
[21]
RFC 5905: "Network Time Protocol Version 4: Protocol and Algorithms Specification".
[22]
IEEE 1588-2008: "IEEE Standard for a Precision Clock Synchronization Protocol for Networked Measurement and Control Systems".
3 Definitions and abbreviations p. 11
3.1 Definitions p. 11
For the purposes of the present document, the terms and definitions given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.
Interworking:
A means of communication between mission critical systems and LMR systems whereby MC users obtaining service from a mission critical system can communicate with LMR users who are obtaining service from one or more LMR systems.
Interworking function:
Adapts LMR Systems to mission critical systems via the IWF interface and supports interworking between LMR systems and mission critical systems.
Interworking group:
A group, which is composed of group members from MCPTT system and LMR system and defined in MCPTT system or LMR system.
LMR system:
The collection of applications, services, and enabling capabilities required to provide LMR service for a mission critical organization. The term LMR system is defined for discussion purposes only and is out of scope of the present specification.
LMR user:
A user of an LMR service, who has a device with the capability to participate in legacy LMR services. The term LMR user is defined for discussion purposes only and is out of scope of the present specification.
Temporary interworking group:
A group created by regrouping groups from MCPTT system and LMR system.
3.2 Abbreviations p. 11
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.
ACELP
Algebraic Code-Excited Linear Prediction (TETRA)
CCA
Critical Communications Application (TETRA)
DGNA
Dynamic Group Number Assignment (TETRA)
E2EE
End-to-End Encryption
EVS
Enhanced Voice Services
GMS
Group Management Server
GSSI
Group Short Subscriber Identity (TETRA)
GTSI
Group TETRA Subscriber Identity (TETRA)
IAT
Inter-Arrival Time
IKI
Inter-KMF Interface
IMBE
Improved MultiBand Excitation
ISSI
Individual Short Subscriber Identity (TETRA)
ITSI
Individual TETRA Subscriber Identity (TETRA)
IWF
InterWorking Function
KMF
Key Management Facility
KMS
Key Management Service
LIP
Local Information Protocol (TETRA)
LMR
Land Mobile Radio
MCC
Mobile Country Code (TETRA)
MCPTT
Mission Critical Push To Talk
MIKEY
Multimedia Internet KEYing
MNC
Mobile Network Code (TETRA)
MS
Mobile Station (TETRA)
NTP
Network Time Protocol
OTAR
Over-The-Air Rekeying
P25
Project 25
PTP
Precision Time Protocol
SAKKE
SAkai Kasahara Key Encryption
SGID
Subscriber Group ID (P25)
SUID
Subscriber Unit ID (P25)
SWB
Super WideBand
TCCE
TETRA and Critical Communications Evolution
TETRA
TErrestrial Trunked Radio
UE
User Equipment
UID
Unit ID (P25)
URI
Uniform Resource Identifier
WACN
Wide Area Communications Network (P25)
WB-AMR
WideBand Adaptive Multi-Rate
