Content for TS 32.272 Word version: 17.0.0

3.1 Definitions 3.2 Symbols 3.3 Abbreviations
...

1 Scope p. 6

The present document is part of a series of Technical Specifications (TSs) that specify charging functionality and charging management in GSM/UMTS networks. The GSM/UMTS core network charging architecture and principles are specified in TS 32.240, which provides an umbrella for other charging management TSs that specify:

the content of the CDRs per domain and subsystem (offline charging);
the content of real-time charging messages per domain / subsystem (online charging);
the functionality of online and offline charging for those domains and subsystems;
the interfaces that are used in the charging framework to transfer the charging information (i.e. CDRs or charging events).

The complete document structure for these TSs is defined in TS 32.240.

The present document specifies the offline and online charging description for the "Push-to-Talk over Cellular" (PoC) service, based on the functional description of the PoC service in TR 23.979 "3GPP enablers for OMA PoC Services", in OMA-AD-POC "Push to talk over Cellular (PoC) - Architecture" [203], in OMA-CP-POC "OMA PoC Control Plane" [204] and in OMA-UP-POC: "OMA POC User Plane"[205], respectively. This charging description includes the offline and online charging architecture and scenarios specific to PoC, as well as the mapping of the common 3GPP charging architecture specified in TS 32.240 onto the PoC service. It further specifies the structure and content of the CDRs for offline charging, and the charging events for online charging. The present document is related to other 3GPP charging TSs as follows:

The common 3GPP charging architecture is specified in TS 32.240;
The parameters, abstract syntax and encoding rules for the CDRs are specified in TS 32.298;
A transaction based mechanism for the transfer of CDRs within the network is specified in TS 32.295;
The file based mechanism used to transfer the CDRs from the network to the operator's billing domain (e.g. the billing system or a mediation device) is specified in TS 32.297;
The 3GPP Diameter application that is used for PoC offline and online charging is specified in TS 32.299.

All terms, definitions and abbreviations used in the present document, that are common across 3GPP TSs, are defined in the 3GPP Vocabulary, TR 21.905. Those that are common across charging management in GSM/UMTS domains or subsystems are provided in the umbrella document TS 32.240 and are copied into clause 3 of the present document for ease of reading. Finally, those items that are specific to the present document are defined exclusively in the present document.

Furthermore, requirements that govern the charging work are specified in TS 22.115.

2 References p. 7

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]

TS 32.240: "Telecommunication management; Charging management; Charging architecture and principles".

[2] - [9] Void.

[10]

TS 32.250: "Telecommunication management; Charging management; Circuit Switched (CS) domain charging".

[11]

TS 32.251: "Telecommunication management; Charging management; Packet Switched (PS) domain charging".

[12] - [19] Void.

[20]

TS 32.260: "Telecommunication management; Charging management; IP Multimedia Subsystem (IMS) charging".

[21] - [29] Void.

[30]

TS 32.270: "Telecommunication management; Charging management; Multimedia Messaging Service (MMS) charging".

[31] - [49]

Void.

[50]

TS 32.299: "Telecommunication management; Charging management; Diameter charging application".

[51]

TS 32.298: "Telecommunication management; Charging management; Charging Data Record (CDR) parameter description".

[52]

TS 32.297: "Telecommunication management; Charging management; Charging Data Record (CDR) file format and transfer".

[53] Void.

[54]

TS 32.295: "Telecommunication management; Charging management; Charging Data Record (CDR) transfer".

[55] - [99] Void.

[100]

TR 21.905: "Vocabulary for 3GPP specifications".

[101]

TS 22.115: "Service aspects; Charging and billing".

[102] - [199] Void.

[200]

TR 23.979: "3GPP enablers for Open Mobile Alliance (OMA): Push-to-talk over Cellular (PoC) services; Stage 2".

[201]

TS 23.228: "IP Multimedia Subsystem (IMS); Stage 2".

[202]

TS 24.228: "Signalling flows for the IP multimedia call control based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3".

[203]

OMA-AD-POC: "Push to talk over Cellular (PoC) - Architecture".

[204]

OMA-CP-POC: "OMA PoC Control Plane".

[205]

OMA-UP-POC: "OMA POC User Plane".

[206]

TS 24.002: "GSM - UMTS Public Land Mobile Network (PLMN) Access Reference Configuration".

[207]

TS 25.305: "Stage 2 functional specification of User Equipment (UE) positioning in UTRAN".

[208]

TS 43.059: "Functional stage 2 description of Location Services (LCS) in GERAN".

[209] - [300] Void.

[301]

ITU-T Recommendation Q.1001:

[302] - [402] Void.

[403]

RFC 1350 (1992): "The TFTP Protocol (Revision 2)".

[404]

RFC 3261(2002): "SIP: Session Initiation Protocol".

[405]

RFC 3966 (2004): "The tel URI for Telephone Numbers".

3 Definitions, symbols and abbreviations p. 9

3.1 Definitions p. 9

For the purposes of the present document, the terms and definitions given in TR 21.905, TS 32.240 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.

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 and GERAN Stage 2 TS 43.059.

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 p. 15

For the purposes of the present document, the following symbols apply:

Interface between an MSC and a BSC

Reference point for the CDR file transfer from the Circuit Switched CGF to the BD

Reference point for the CDR file transfer from the IMS CGF to the BD

Reference point for the CDR file transfer from the GMLC CGF to the BD

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

Reference point for the CDR file transfer from the OCF CGF to the BD

Reference point for the CDR file transfer from the Packet Switched CGF to the BD

Reference point for the CDR file transfer for CAMEL services to the BD, i.e. from the SCF CGF to the BD

Reference point for the CDR file transfer from the PoC CGF to the BD

Reference point for the CDR file transfer from the WLAN CGF to the BD

Reference point for CDR file transfer between any (generic) 3G domain, subsystem or service CGF and the BD

Interface between a HLR and a SMSC

CAP

Reference point for CAMEL between a network element with integrated SSF and the OCS

Charging trigger in combined MMS R/S

Interface between a MSC and a HLR

Reference point between an MSCa pre-R6 HSS/HLR and a BSC.3GPP AAA Server

Reference point between a 3GPP AAA Server and an SLF

Interface between a MSC and a SMSC

Reference point for CDR transfer between a CDF and the CGF

Interface between an SGSN and a BSC

Interface between an GGSN and an HLR

Interface between an SMS-GMSC and an SGSN, and between a SMS-IWMSC and an SGSN

Interface between a SGSN and a CAMEL GSM SCF

Interface between an SGSN and an EIR

Interface between the Packet-Switched domain and an external packet data network

Reference point between the UE and an P-CSCF

Interface between two GSNs within the same PLMN

Interface between two GSNs in different PLMNs

Interface between an SGSN and an HLR

Gr'

Reference point between a pre-R6 HSS/HLR and a 3GPP AAA Server

Interface between an SGSN and an MSC/VLR

Reference point between a CRF and a TPF

Online charging reference point between a TPF and an OCS

Offline charging reference point between a TPF and a CDF

Interface between the RNS and the core network

kbit/s

kilobits per second. 1 kbit/s = 210 bits per second

Interface between Gateway MLCs

Mbit/s

Megabits per second. 1 Mbit/s = 220 bits per second

Interface between the MGW and (G)MSC server

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

Reference point between one CSCF and another CSCF

Charging trigger in Originator MMS R/S

Reference point between a non-ISDN compatible TE and MT. Typically this reference point supports a standard serial interface.

Offline charging reference point between a PoC Server and the CDF.

Charging trigger in Recipient MMS R/S

Online charging reference point between a PoC Server and the OCS

Reference point between the CRF and an AF

Interface between the Mobile Station (MS) and the GSM fixed network part

Reference point between the UE and an GLMS

Interface between the Mobile Station (MS) and the UMTS fixed network part

3.3 Abbreviations p. 17

For the purposes of the present document, the abbreviations defined in TR 21.905, TS 32.240 and the following apply:

ABNF

Augmented Backus-Naur Form

ACA

ACcounting Answer

ACR

ACcounting Request

APN

Access Point Name

Application Function

AMF

Account balance Management Function

AoC

Advice of Charge

APN

Access Point Name

Application Server

AVP

Attribute Value Pair

B2BUA

Back-to-Back User Agent

BCF

Bearer Charging Function

BCSM

Basic Call State Model

Billing Domain

BGCF

Breakout Gateway Control Function

BM-SC

Broadcast Multicast - Service Centre

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

Charging Gateway

CGF

Charging Gateway Function

Cell Identity

CRF

Charging Rules Function

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

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

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

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

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

Location Request

LRN

Location Routing Number

MAP

Mobile Application Part

MBMS

Multimedia Broadcast/Multicast Service

MCC

Mobile Country Code (part of IMSI)

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)

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

Mobile Station

MSC

Mobile Switching Centre

MSCF

Messaging Service Control Function

MSISDN

Mobile Station ISDN number

MSRN

Mobile Station Roaming Number

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

Network Element

Network Identifier (part of the APN)

NI-LR

Network Induced - Location Request

Number Portability

NPDB

Number Portability Data Base

OCF

Online Charging Function

OCS

Online Charging System

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

Packet-Switched

PSPDN

Packet-Switched Public Data Network

PSTN

Public Switched Telephony Network

Protocol Type (Field in GTP' header)

QoS

Quality of Service

RAB

Radio Access Bearer

RAC

Routing Area Code

RAN

Radio Access Network

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

Technical Report

Technical Specification

Type, Value

T-CSI

Terminating - CAMEL Subscription Information

User Agent

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