Tech-invite3GPPspecsSIPRFCs
Overview21222324252627282931323334353637384‑5x

Content for  TS 23.379  Word version:  17.5.0

Top   Top   None   None   Next
1…   4…   7…   7.4…   10…   10.5…   10.6…   10.6.2.2.18…   10.6.2.2.34…   10.6.2.3…   10.6.2.3.2…   10.6.2.4…   10.6.2.5…   10.6.2.6…   10.6.2.7…   10.6.2.9…   10.6.2.10…   10.6.3…   10.7…   10.7.2.2   10.7.2.3…   10.7.3…   10.7.4…   10.7.5…   10.7.6…   10.9…   10.9.1.3…   10.9.2…   10.10…   10.14…   A…   A.4…   B…

 

1  ScopeWord‑p. 12
This document specifies the functional architecture, procedures and information flows needed to support the mission critical push to talk (MCPTT) service. The MCPTT service utilizes the common functional architecture to support MC services over LTE including the common services core defined in TS 23.280.Support for both MCPTT group calls and MCPTT private calls operating in on-network and off-network modes of operation is specified.
The corresponding service requirements are defined in TS 22.179 and TS 22.280.
The present document is applicable primarily to MCPTT voice service using E-UTRAN access based on the EPC architecture defined in TS 23.401. Certain application functions of the MCPTT service such as dispatch and administrative functions could also be supported via non-3GPP access networks but no additional functionality is specified to support non-3GPP access.
The MCPTT service requires preferential handling compared to normal telecommunication services e.g. in support of police or fire brigade including the handling of prioritised MCPTT calls for emergency and imminent threats.
The MCPTT service can be used for public safety applications and also for general commercial applications e.g. utility companies and railways.
In the present document, MCPTT calls between MCPTT users on different MCPTT systems are considered.
Up

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)"; Stage 1.
[3]
TS 23.002: "Network Architecture".
[4]
TS 23.203: "Policy and charging control architecture".
[5]
TS 23.228: "IP Multimedia Subsystem (IMS); Stage 2".
[6]
TS 23.237: "IP Multimedia Subsystem (IMS) Service Continuity; Stage 2".
[7]
TS 23.303: "Proximity-based services (ProSe); Stage 2".
[8]
TS 23.401: "General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access".
[9]
TS 23.468: "Group Communication System Enablers for LTE (GCSE_LTE); Stage 2".
[10]
TS 29.468: "Group Communication System Enablers for LTE (GCSE_LTE); MB2 Reference Point; Stage 3".
[11]  Void
[12]
TS 36.331: "Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification".
[13]
RFC 5245  (April 2010): "Interactive Connectivity Establishment (ICE): A Protocol for Network Address Translator (NAT) Traversal for Offer/Answer Protocols".
[14]  Void
[15]  Void
[16]
TS 23.280: "Common functional architecture to support mission critical services".
[17]
TS 22.280: "Mission Critical Common Requirements (MCCoRe); Stage 1".
[18]
TS 29.283: "Diameter data management applications".
[19]
TS 33.180: "Security of the mission critical service".
[20]
TS 23.283: "Mission Critical Communication Interworking with Land Mobile Radio Systems; Stage 2".
Up

3  Definitions, symbols and abbreviationsWord‑p. 13

3.1  Definitions

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.
Automatic commencement mode:
A mode in which the initiation of the private call does not require any action on the part of the receiving MCPTT user.
First-to-answer call:
A call that is started when the first MCPTT user among multiple potential target recipients' answers. This call requires the answering MCPTT user to answer manually; automatic answer is not allowed
Group call:
A mechanism by which an MCPTT user can make a one-to-many MCPTT transmission to other users that are members of MCPTT group(s).
Group home MCPTT system:
The MCPTT system where the MCPTT group is defined.
Group host MCPTT server:
The MCPTT server within an MCPTT system that provides centralised support for MCPTT services of an MCPTT group defined in a group home MCPTT system.
Manual commencement mode:
A mode in which the initiation of the private call requires the receiving MCPTT user to perform some action to accept or reject the call setup.
MCPTT client:
An instance of an MC service client that provides the client application function for the MCPTT service.
MCPTT group:
An MC service group configured for MCPTT service.
MCPTT group affiliation:
An MC service group affiliation for MCPTT.
MCPTT group de-affiliation:
An MC service group de-affiliation for MCPTT.
MCPTT ID:
An instance of an MC service ID within the MCPTT service.
MCPTT server:
An instance of an MC service server that provides the server application function for the MCPTT service.
On-network MCPTT service:
The collection of functions and capabilities required to provide MCPTT via EPS bearers using E-UTRAN to provide the last hop radio bearers.
Preconfigured MCPTT group:
an MCPTT group used only for regrouping that has been configured in advance of a group or user regrouping operation to serve as the source of regroup group configuration.
Pre-selected MCPTT user profile:
An instance of the pre-selected MC service user profile for MCPTT.
UE-to-network relay MCPTT service:
The collection of functions and capabilities required to provide MCPTT via a ProSe UE-to-network relay using ProSe direct communication paths to provide the last hop radio bearer(s).
For the purposes of the present document, the following terms and definitions given in TS 22.179 apply:
Dispatcher
Floor control
MCPTT administrator
MCPTT service
MCPTT system
MCPTT UE
MCPTT user
MCPTT User Profile
Mission Critical Organization
Mission Critical Push To Talk
Off-network MCPTT service
Partner MCPTT system
Primary MCPTT system
Private call
Multi-talker control
For the purposes of the present document, the following terms and definitions given in IETF RFC 5245 [13] apply:
Candidate
Candidate pair
For the purposes of the present document, the following terms and definitions given in TS 23.280 apply:
Active MC service user profile
MC service client
MC service group
MC service group affiliation
MC service group de-affiliation
MC service ID
MC service server
Pre-selected MC service user profile
For the purposes of the present document, the following terms and definitions given in TS 22.280 apply:
Functional alias
Up

3.2  SymbolsWord‑p. 14
For the purposes of the present document, the following symbols given in TS 22.179 apply:
B1
B2
N2
N3
N4
N5
N6
N7
N10
N11

3.3  AbbreviationsWord‑p. 15
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.
APN
Access Point Name
ARP
Allocation and Retention Priority
BM‑SC
Broadcast Multicast Service Centre
CHAP
Challenge-Handshake Authentication Protocol
CSCF
Call Server Control Function
DL
Downlink
DPF
Direct Provisioning Function
E-UTRAN
Evolved Universal Terrestrial Radio Access Network
E2EE
End to End Encryption
ECGI
E-UTRAN Cell Global Identifier
EPC
Evolved Packet Core
EPS
Evolved Packet System
GBR
Guaranteed Bit Rate
GCS AS
Group Communication Service Application Server
GCSE_LTE
Group Communication Service Enabler over LTE
GRUU
Globally Routable User agent URI
HLR
Home Location Register
HSS
Home Subscriber Server
HTTP
Hyper Text Transfer Protocol
I-CSCF
Interrogating CSCF
ICE
Interactive Connectivity Establishment
IM CN
IP Multimedia Core Network
IMPI
IP Multimedia Private Identity
IMPU
IP Multimedia PUblic identity
IMS
IP Multimedia Subsystem
ITSI
Individual TETRA Subscriber Identity
LMR
Land Mobile Radio
MBMS
Multimedia Broadcast and Multicast Service
MBSFN
Multimedia Broadcast multicast service Single Frequency Network
MC
Mission Critical
MC ID
Mission Critical user identity
MCPTT
Mission Critical Push To Talk
MCPTT AS
MCPTT Application Server
MCPTT group ID
MCPTT group identity
MCPTT ID
MCPTT user identity
NAT
Network Address Translation
PAP
Password Authentication Protocol
P-CSCF
Proxy CSCF
PCC
Policy and Charging Control
PCRF
Policy and Charging Rules Function
PLMN
Public Land Mobile Network
ProSe
Proximity-based Services
PSI
Public Service Identity
PTT
Push To Talk
QCI
QoS Class Identifier
QoS
Quality of Service
RAN
Radio Access Network
RF
Radio Frequency
RSI
Radio Set Identity
S-CSCF
Serving CSCF
SAI
Service Area Identifier
SDF
Service Data Flow
SIP
Session Initiated Protocol
SSL
Secure Sockets Layer
TLS
Transport Layer Security
TMGI
Temporary Mobile Group Identity
UM
Unacknowledged Mode
URI
Uniform Resource Identifier
USB
Universal Serial Bus
WLAN
Wireless Local Area Network
Up


Up   Top   ToC