3 Definitions, symbols and abbreviations
32.2723GPPCharging managementPush-to-talk over Cellular (PoC) chargingRelease 17Telecommunication managementTS
3.1 Definitions
For the purposes of the present document, the terms and definitions given in TR 21.905 [50], TS 32.240 [1] and the following apply:
1-1 PoC session: feature enabling a PoC user to establish a PoC session with another PoC user
ad-hoc PoC group session: feature enabling a PoC user to establish a PoC session with multiple PoC users without first creating a PoC group.
This sort of PoC session for multiple PoC users that does not involve the use or definition of a pre-arranged or chat PoC group session.
application data: information / data specific to an application other than the MMS User Agent / VASP which is intended to be transported without alteration by using MMS
Application Data may be of any content type and format.
charging destination: also referred to as a destination for charging, this is a nominal reference defining the point of termination of a connection for charging purposes
charging function: entity inside the core network domain, subsystem or service that is involved in charging for that domain, subsystem or service
charging origin: nominal reference defining the point of origin of a connection for charging purposes
chat PoC group: persistent group in which each member individually joins the PoC session, i.e. the establishment of a PoC session to a chat PoC group does not result in other members of the chat PoC group being invited
chat PoC group session: PoC session established to a chat PoC group.
In a chat PoC group, PoC subscribers shall be able to join and leave the chat PoC group session themselves. If the chat PoC group is restricted, then only group members shall be able to join.
controlling PoC function: function implemented in a PoC Server and provides centralized PoC session handling, which includes RTP media distribution, talk burst control, policy enforcement for participation in group sessions, and the participant information
delivery report: feedback information provided to an originator MMS User Agent by an MMS R/S (MMS R/S) about the status of the delivery of an MM
forwarded MM: MM originally sent from a sender to an intended recipient which is then forwarded to other recipient(s) and to which a delivery report and/or read-reply report may refer and which may be subject to further forwarding
forwarding MMS User Agent: MMS User Agent that is the intended recipient of an MM and that requests forwarding of the MM for delivery to other recipient(s) without having to first download the MM
GTP’: GPRS protocol used for CDR transport.
It is derived from GTP with enhancements to improve transport reliability necessary for CDRs.
NOTE: This protocol is not used for tunnelling.
Instant personal alert: feature in which a PoC user sends a SIP based instant message to a PoC user requesting a 1‑1 PoC session.
LCS Client: software and/or hardware entity that interacts with a LCS Server for the purpose of obtaining location information for one or more Mobile Stations (MSs).
LCS Clients subscribe to LCS in order to obtain location information. LCS Clients may or may not interact with human users. The LCS Client is responsible for formatting and presenting data and managing the user interface (dialogue). The LCS Client may reside in the Mobile Station (MS).
LCS Server: software and/or hardware entity offering LCS capabilities.
The LCS Server accepts requests, services requests, and sends back responses to the received requests.
The LCS Server consists of LCS components, which are distributed to one or more PLMN and/or service provider.
Location Based Service (LBS): service provided either by teleoperator or a 3rd party service provider that utilizes the available location information of the terminal.
Location Application offers the User Interface for the service. LBS is either a pull or a push type of service (see Location Dependent Services and Location Independent Services).
In ETSI/GSM documentation of SoLSA, LBS is called "Location Related Service".
ETSI and/or 3GPP -wide terminology harmonization is expected here.
Location Estimate: geographic location of an UE and/or a valid Mobile Equipment (ME), expressed in latitude and longitude data.
The Location Estimate is represented in a well-defined universal format. Translation from this universal format to another geographic location system may be supported, although the details are considered outside the scope of the primitive services.
message ID: unique identifier for an MM
MMSE: collection of MMS-specific Elements under the control of a single administration.
MMS Relay/Server (MMS R/S): MMS-specific network entity/application that is under the control of an MMS service provider.
An MMS R/S transfers messages, provides operations of the MMS that are specific to or required by the mobile environment and provides (temporary and/or persistent) storage services to the MMS.
MMS User Agent: application residing on a user equipment, an MS or an external device that performs MMS‑specific operations on a user’s behalf and/or on another application’s behalf. An MMS User Agent is not considered part of an MMSE.
Multimedia Messaging Service Network Architecture (MMSNA): encompasses all the various elements that provide a complete MMS to a user.
on-demand session: an on-demand session is a PoC session set-up mechanism in which all media parameters are negotiated at PoC session establishment.
online charging: charging mechanism where charging information can affect, in real-time, the service rendered and therefore a direct interaction of the charging mechanism with session/service control is required.
Online Charging System (OCS): entity that performs real-time credit control.
Its functionality includes transaction handling, rating, online correlation and management of subscriber account balances.
original MM: (initial) MM sent from a sender to a recipient and to which a delivery report and/or a read-reply report and/or a reply-MM may refer and/or which may be subject to being forwarded.
originator MMS User Agent: MMS User Agent associated with the sender of an MM.
participating PoC function: function implemented in a PoC Server, and provides PoC session handling, which includes policy enforcement for incoming PoC sessions and relays talk burst control messages between the PoC Client and the PoC Server performing the controlling PoC function.
The participating PoC function may also relay RTP media between the PoC Client and the PoC Server performing the controlling PoC function.
PoC Client: PoC functional entity that resides on the PoC user equipment that supports the PoC service.
PoC group: a PoC group is a predefined set of PoC users together with its attributes. A PoC group is identified by a SIP URI.
PoC group advertisement: a PoC group advertisement is a feature that provides the capability to inform other PoC users of the existence of a PoC group.
PoC group identity: the PoC group identity is a SIP URI of the pre-arranged PoC group or chat PoC group.
PoC Server: implements the application level network functionality for the PoC service.
A PoC Server may perform the role of the controlling PoC function or participating PoC function, or both at the same time.
PoC session: the present document supports the following types of PoC sessions: 1-1 PoC session, ad-hoc PoC group session, pre-arranged PoC group session, or chat PoC group session.
PoC session identity: SIP URI received by the PoC Client during the PoC session establishment in the contact header and/or in the Talk Burst Control Protocol (TBCP) connect message in case of using pre-established session.
PoC user: user of the PoC service.
positioning method (/locating method): method or technical solution, which is used to get an estimate of the target mobile’s geographical location.
EXAMPLE: Positioning methods based on radio cell coverage, GPS or Assisted GPS methods, which are based on the Time-Of-Arrival (TOA) algorithm, and OTDOA or E-OTD methods, which are based on the Time-Difference-Of-Arrival (TDOA) algorithm.
The positioning methods are further described in UTRAN Stage 2 TS 25.305 [63] and GERAN Stage 2 TS 43.059 [64].
pre-arranged PoC group session: is a persistent PoC session Identity that has an associated set of PoC members.
The establishment of a PoC session to a pre-arranged PoC group results in all members being invited.
pre-established session: signalling exchange to negotiate media parameters between the PoC Client and the home PoC Server before establishing a PoC session.
read-reply report: feedback information to an originator MMS User Agent by a recipient MMS User Agent about the status of handling/rendering of an original MM in a recipient MMS User Agent.
recipient MMS User Agent: MMS User Agent associated with the recipient of an MM.
reply-MM: in case of reply-charging the first reply accepted by the recipient MMS R/S (after checking the reply charging limitations, such as the latest time of submission) is called a reply-MM.
Reporting Area: Service Area for which an MS’s location is reported.
RTP media: RTP media is the media carried in an RTP payload.
Service Area: defined in the same way as the Service Area according to ITU-T Recommendation Q.1001 [310].
In contrast to the PLMN area it is not based on the coverage of a PLMN.
Instead it is based on the area in which a fixed network user can call a mobile user without knowing its location.
For example, the Service Area can therefore change when the signalling system is being extended.
simultaneous PoC session: When a PoC user is a participant in more than one PoC session simultaneously using the same PoC Client.
talk burst: media recording, transport and playback that occurs from the point the PoC Client has got the permission to send media until the permission is released.
Talk Burst Control Protocol (TBCP): is a protocol for performing talk burst control, as defined in OMA-UP-POC: "OMA POC User Plane" [205].
target UE: UE being positioned.
3.2 Symbols
For the purposes of the present document, the following symbols apply:
A Interface between an MSC and a BSC
Bc Reference point for the CDR file transfer from the Circuit Switched CGF to the BD
Bi Reference point for the CDR file transfer from the IMS CGF to the BD
Bl Reference point for the CDR file transfer from the GMLC CGF to the BD
Bm Reference point for the CDR file transfer from the MMS CGF to the BD
Bmb Reference point for the CDR file transfer from the MBMS CGF to the BD
Bo Reference point for the CDR file transfer from the OCF CGF to the BD
Bp Reference point for the CDR file transfer from the Packet Switched CGF to the BD
Bs Reference point for the CDR file transfer for CAMEL services to the BD, i.e. from the SCF CGF to the BD
Bt Reference point for the CDR file transfer from the PoC CGF to the BD
Bw Reference point for the CDR file transfer from the WLAN CGF to the BD
Bx Reference point for CDR file transfer between any (generic) 3G domain, subsystem or service CGF and the BD
C Interface between a HLR and a SMSC
CAP Reference point for CAMEL between a network element with integrated SSF and the OCS
Ci Charging trigger in combined MMS R/S
D Interface between a MSC and a HLR
D’ Reference point between an MSCa pre-R6 HSS/HLR and a BSC.3GPP AAA Server
Dw Reference point between a 3GPP AAA Server and an SLF
E Interface between a MSC and a SMSC
Ga Reference point for CDR transfer between a CDF and the CGF
Gb Interface between an SGSN and a BSC
Gc Interface between an GGSN and an HLR
Gd Interface between an SMS-GMSC and an SGSN, and between a SMS-IWMSC and an SGSN
Ge Interface between a SGSN and a CAMEL GSM SCF
Gf Interface between an SGSN and an EIR
Gi Interface between the Packet-Switched domain and an external packet data network
Gm Reference point between the UE and an P-CSCF
Gn Interface between two GSNs within the same PLMN
Gp Interface between two GSNs in different PLMNs
Gr Interface between an SGSN and an HLR
Gr’ Reference point between a pre-R6 HSS/HLR and a 3GPP AAA Server
Gs Interface between an SGSN and an MSC/VLR
Gx Reference point between a CRF and a TPF
Gy Online charging reference point between a TPF and an OCS
Gz Offline charging reference point between a TPF and a CDF
Iu Interface between the RNS and the core network
kbit/s kilobits per second. 1 kbit/s = 210 bits per second
Lr Interface between Gateway MLCs
Mbit/s Megabits per second. 1 Mbit/s = 220 bits per second
Mc Interface between the MGW and (G)MSC server
Mi Charging trigger in MMS R/S for MMBox Management
MM1 Reference point between the MMS User Agent and the MMS R/S
MM2 Reference point between the MMS Relay and the MMS Server
MM3 Reference point between the MMS R/S and external (legacy) messaging systems
MM4 Reference point between the MMS R/S and another MMS R/S that is within another MMSE
MM5 Reference point between the MMS R/S and the Home Location Register (HLR)
MM6 Reference point between the MMS R/S and the MMS User Databases
MM7 Reference point between the MMS R/S and MMS VAS Applications
MM8 Reference point between the MMS R/S and the post-processing system
MM9 Reference point between the MMS R/S and the online charging system
MM10 Reference point between the MMS R/S and a MSCF
Mw Reference point between one CSCF and another CSCF
Oi Charging trigger in Originator MMS R/S
R Reference point between a non-ISDN compatible TE and MT. Typically this reference point supports a standard serial interface.
Rf Offline charging reference point between a PoC Server and the CDF.
Ri Charging trigger in Recipient MMS R/S
Ro Online charging reference point between a PoC Server and the OCS
Rx Reference point between the CRF and an AF
Um Interface between the Mobile Station (MS) and the GSM fixed network part
Ut Reference point between the UE and an GLMS
Uu Interface between the Mobile Station (MS) and the UMTS fixed network part
3.3 Abbreviations
For the purposes of the present document, the abbreviations defined in TR 21.905 [50], TS 32.240 [1] and the following apply:
ABNF Augmented Backus-Naur Form
ACA ACcounting Answer
ACR ACcounting Request
APN Access Point Name
AF Application Function
AMF Account balance Management Function
AoC Advice of Charge
APN Access Point Name
AS Application Server
AVP Attribute Value Pair
B2BUA Back-to-Back User Agent
BCF Bearer Charging Function
BCSM Basic Call State Model
BD Billing Domain
BGCF Breakout Gateway Control Function
BM-SC Broadcast Multicast – Service Centre
BS Billing System
BSC Base Station Controller
BSS Base Station Subsystem
BTS Base Transceiver Station
CAI Charge Advice Information
CAMEL Customised Applications for Mobile network Enhanced Logic
CAP CAMEL Application Part
CCA Credit Control Answer
CCF Charging Collection Function
CCR Credit Control Request
CDF Charging Data Function
CDR Charging Data Record
CG Charging Gateway
CGF Charging Gateway Function
CI Cell Identity
CRF Charging Rules Function
CS Circuit Switched
CSCF Call Session Control Function (I-Interrogating; P-Proxy and S-Serving)
CSE CAMEL Service Environment
CTF Charging Trigger Function
DCCA Diameter Credit Control Applications
DP Detection Point
DRP Data Record Packet
EBCF Event Based Charging Function
ECUR Event Charging with Unit Reservation
EDP Event Detection Point
EIR Equipment Identity Register
EM Element Management
EMS-Digits North American Emergency Service Routing – Digits
EMS-Key North American Emergency Service Routing – Key
FCI Furnish Charging Information
FQPC Fully Qualified Partial CDR
FTAM File Transfer, Access and Management
GERAN GSM EDGE Radio Access Network
GGSN Gateway GPRS Support Node
GMLC Gateway MLC
GMSC Gateway MSC
GPRS General Packet Radio Service
gsmSCF GSM Service Control Function
gsmSSF GSM Service Switching Function
GSM Global System for Mobile communication
GSN GPRS Support Node (either SGSN or GGSN)
GTP GPRS Tunnelling Protocol
GTP’ The GPRS protocol used for CDR transport. It is derived from GTP with enhancements to improve transport reliability necessary for CDRs.
G-CDR GGSN (PDP context) generated – CDR
HLR Home Location Register
HPLMN Home PLMN
HSCSD High Speed Circuit Switched Data
HSS Home Subscriber Server
H-GMLC Home – GMLC
IANA Internet Assigned Numbers Authority
IE Information Element
IEC Immediate Event Charging
IHOSS:OSP Internet Hosted Octet Stream Service: Octet Stream Protocol
IMEI International Mobile Equipment Identity
IMS IP Multimedia Subsystem
IMSI International Mobile Subscriber Identity
IMS-GWF IMS – GateWay Function
IP Internet Protocol
IPv4 Internet Protocol version 4
IPv6 Internet Protocol version 6
ISC IMS Service Control
ISDN Integrated Services Digital Network
ITU-T International Telecommunication Union – Telecommunications standardization sector
JIP Jurisdiction Information Parameter
LAC Location Area Code
LAN Local Area Network
LCS LoCation Service
LR Location Request
LRN Location Routing Number
MAP Mobile Application Part
MBMS Multimedia Broadcast/Multicast Service
MCC Mobile Country Code (part of IMSI)
ME Mobile Equipment
MGCF Media Gateway Control Function
MGW Media GateWay
MIME Multipurpose Internet Mail Extensions
MLC Mobile Location Center
MMI Man-Machine Interface
MMS Multimedia Messaging Service
MMSE Multimedia Messaging Service Environment
MMSNA Multimedia Messaging Service Network Architecture
MMSO Multimedia Messaging Service Originator
MMSR Multimedia Messaging Service Recipient
MMS R/S Multimedia Messaging Relay/Server
MNC Mobile Network Code (part of IMSI)
MO Mobile Originated
MOC Mobile Originated Call (attempt)
MO-LR Mobile Originated Location Request
MRF Media Resource Function
MRFC MRF Controller
MRFP Multimedia Resource Function Processor
MS Mobile Station
MSC Mobile Switching Centre
MSCF Messaging Service Control Function
MSISDN Mobile Station ISDN number
MSRN Mobile Station Roaming Number
MT Mobile Terminated
MTC Mobile Terminated Call (attempt)
MT-LR Mobile Terminated – Location Request
M-CDR Mobility management generated – Charging Data Record
NAR North America Region
NA-ESRD North American – Emergency Service Routing Digits
NA-ESRK North American – Emergency Service Routing Key
NE Network Element
NI Network Identifier (part of the APN)
NI-LR Network Induced – Location Request
NP Number Portability
NPDB Number Portability Data Base
OCF Online Charging Function
OCS Online Charging System
OI Operator Identifier (part of the APN)
O-CSI Originating – CAMEL Subscription Information
PDN Packet Data Network
PDP Packet Data Protocol (e.g. IP)
PDU Packet Data Unit
PLMN Public Land Mobile Network
PMD Pseudonym Mediation Device functionality
PoC Push-to-talk over Cellular
PPP Point-to-Point Protocol
PPR Privacy Profile Register
PS Packet-Switched
PSPDN Packet-Switched Public Data Network
PSTN Public Switched Telephony Network
PT Protocol Type (Field in GTP’ header)
QoS Quality of Service
RAB Radio Access Bearer
RAC Routing Area Code
RAN Radio Access Network
RF Rating Function
RNC Radio Network Controller
RNS Radio Network Subsystem
RPC Reduced Partial CDR
RTP Real Time Protocol
R-GMLC Requesting – GMLC
SAC Service Area Code
SBCF Session Based Charging Function
SCCP Signalling Connection Control Part
SCUR Session Charging with Unit Reservation
SDP Session Description Protocol
SCF Service Control Function
SCI Subscriber Controlled Input
SCI Send Charging Information
SGSN Serving GPRS Support Node
SIM Subscriber Identity Module
SIP Session Initiation Protocol
SMS Short Message Service
SSF Service Switching Function
SS7 Signalling System No. 7
SCCP Signalling Connection Control Part
S-CDR SGSN (PDP context) generated – CDR
S-SMO-CDR SGSN delivered Short message Mobile Originated – CDR
S-SMT-CDR SGSN delivered Short message Mobile Terminated – CDR
TAP Transferred Account Procedure
TBCP Talk Burst Control Protocol
TDP Trigger Detection Point
TID Tunnel IDentifier
TLV Type, Length, Value (GTP header format)
TPF Traffic Plane Function
TR Technical Report
TS Technical Specification
TV Type, Value
T-CSI Terminating – CAMEL Subscription Information
UA User Agent
UE User Equipment
UMTS Universal Mobile Telecommunications System
URA UTRAN Registration Area
USIM User Service Identity Module
USSD Unstructured Supplementary Service Data
UTRAN Universal Terrestrial Radio Access Network
VAS Value Added Service
VASP Value Added Service Provider
VLR Visitor Location Register
VMSC Visited MSC
VPLMN Visited PLMN
VT-CSI Visited Terminating CAMEL Subscription Information
V-GMLC Visited GMLC
WLAN Wireless LAN
XDMS XML Document Management Server
XML Extensible Mark-up Language