ETSI TS 132 271 V7.1.0 (2009-01)

ETSI TS 132 271 V7.1.0 (2009-01)
Technical Specification
Digital cellular telecommunications system (Phase 2+);
Universal Mobile Telecommunications System (UMTS);
LTE;
Telecommunication management;
Charging management;
Location Services (LCS) charging
(3GPP TS 32.271 version 7.1.0 Release 7)
GLOBAL SYSTEM FOR
MOBILE COMMUNICATIONS
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3GPP TS 32.271 version 7.1.0 Release 7 1 ETSI TS 132 271 V7.1.0 (2009-01)
Reference
RTS/TSGS-0532271v710
Keywords
GSM, UMTS
ETSI
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This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).

The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or

GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables.

The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under

Intellectual Property Rights ................................................................................................................................ 2

Foreword ............................................................................................................................................................. 2

Foreword ............................................................................................................................................................. 4

1 Scope ........................................................................................................................................................ 5

2 References ................................................................................................................................................ 5

3 Definitions, symbols and abbreviations ................................................................................................... 7

3.1 Definitions .......................................................................................................................................................... 7

3.2 Symbols .............................................................................................................................................................. 9

3.3 Abbreviations ..................................................................................................................................................... 9

4 Architecture considerations .................................................................................................................... 10

4.1 High level LCS architecture ............................................................................................................................. 10

4.2 LCS offline charging architecture .................................................................................................................... 11

4.3 LCS online charging architecture ..................................................................................................................... 11

5 LCS charging principles and scenarios .................................................................................................. 12

5.1 LCS charging principles ................................................................................................................................... 12

5.2 LCS offline charging scenarios ........................................................................................................................ 12

5.2.1 Basic principles ........................................................................................................................................... 12

5.2.2 Rf message flows ........................................................................................................................................ 12

5.2.3 CDR Generation ......................................................................................................................................... 12

5.2.3.1 Mobile originated location request (MO-LR) ....................................................................................... 13

5.2.3.2 Mobile terminated location request (MT-LR) ....................................................................................... 14

5.2.3.3 Network induced location request (NI-LR) ........................................................................................... 16

5.2.4 Ga record transfer flows ............................................................................................................................. 16

5.2.5 B CDR file transfer ................................................................................................................................... 17

5.3 LCS online charging scenarios ......................................................................................................................... 17

5.3.1 Basic principles ........................................................................................................................................... 17

5.3.2 Ro message flows ....................................................................................................................................... 18

5.3.2.1 Mobile originated Location Request (MO-LR) ..................................................................................... 18

5.3.2.2 Mobile Terminated Location Request (MT-LR) ................................................................................... 19

6 Definition of charging information ........................................................................................................ 20

6.1 Data description for LCS offline charging ....................................................................................................... 20

6.1.1 Ro message contents ................................................................................................................................... 20

6.1.2 Ga message contents ................................................................................................................................... 20

6.1.3 CDR description on the B interface .......................................................................................................... 20

6.1.3.1 LCS Records for Mobile Originated Location Request (LCS-GMO-CDR) ......................................... 21

6.1.3.2 LCS Records for mobile terminated location request ................................................................................. 21

6.1.3.2.1 LCS Records for Requesting GMLC (LCS-RGMT-CDR) ................................................................... 21

6.1.3.2.2 LCS Records for Home GMLC (LCS-HGMT-CDR) ........................................................................... 22

6.1.3.2.3 LCS Records for Visited GMLC (LCS-VGMT-CDR) ......................................................................... 22

6.1.3.3 LCS Records for Network Initiated Location Request (LCS-GNI-CDR) ............................................. 23

6.2 Data description for LCS online charging ........................................................................................................ 23

6.2.1 R message contents .................................................................................................................................... 23

6.2.1.1 LCS Credit-Control-Request Message .................................................................................................. 24

6.2.1.2 LCS Credit-Control-Answer Message .................................................................................................. 25

Annex A (informative): Bibliography ........................................................................................................... 26

Annex B (informative): Change history ....................................................................................................... 27

History .............................................................................................................................................................. 28

This Technical Specification has been produced by the 3 Generation Partnership Project (3GPP).

The contents of the present document are subject to continuing work within the TSG and may change following formal

TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an

y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections,

z the third digit is incremented when editorial only changes have been incorporated in the document.

The present document is part of a series of documents that specify charging functionality and charging management in

GSM/UMTS networks. The GSM/UMTS core network charging architecture and principles are specified in

3GPP TS 32.240 [1], which provides an umbrella for other charging management documents that specify

• the content of real-time charging events 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

The present document specifies the LCS Offline and Online Charging description for the LCS domain, based on the

functional stage 2 description of the LCS in 3GPP TS 23.071 [201]. This charging description includes the offline and

online charging architecture and scenarios specific to the LCS, as well as the mapping of the common 3GPP

architecture specified in TS 32.240 [1] onto the LCS domain. 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

The parameters, abstract syntax and encoding rules for these CDR types are specified in TS 32.298 [51].

A transaction based mechanism for the transfer of CDRs within the network is specified in TS 32.295 [54].

The file based mechanism used to transfer the CDRs from the network to the operator"s billing domain (e.g.

The 3GPP Diameter application that is used for LCS domain offline and online charging is specified in

All terms, definitions and abbreviations, used in the present document, that are common across 3GPP TSs, are defined

in 3GPP TR 21.905 [100]. Those that are common across charging management in GSM/UMTS domains, services, or

subsystems are provided in the umbrella document 3GPP TS 32.240 [1] 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

Furthermore, requirements that govern the charging work are specified in 3GPP TS 22.115 [102].

The following documents contain provisions, which through reference in this text, constitute provisions of the present

• References are either specific (identified by date of publication, edition number, version number, etc.) or

• 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

[10] 3GPP TS 32.250: "Telecommunication management; Charging management; Circuit Switched

[20] 3GPP TS 32.260: "Telecommunication management; Charging management; IP Multimedia

[30] 3GPP TS 32.270: "Telecommunication management; Charging management; Multimedia

[50] 3GPP TS 32.299: "Telecommunication management; Charging management; Diameter charging

[51] 3GPP TS 32.298: "Telecommunication management; Charging management; Charging Data

[52] 3GPP TS 32.297: "Telecommunication management; Charging management; Charging Data

[53] 3GPP TS 32.296: "Telecommunication management; Charging management; Online Charging

[54] 3GPP TS 32.295: "Telecommunication management; Charging management; Charging Data

[201] 3GPP TS 23.271: "Location Services (LCS); Functional description; Stage 2".

[203] 3GPP TS 25.305: "User Equipment (UE) positioning in Universal Terrestrial Radio Access

[204] 3GPP TS 43.059: "Functional stage 2 description of Location Services (LCS) in GERAN".

For the purposes of the present document, the terms and definitions defined in 3GPP TR 21.905 [100] and

accounting: process of apportioning charges between the Home Environment, Serving Network and Subscriber.

billing: function whereby CDRs generated by the charging function(s) are transformed into bills requiring payment.

Billing Domain: part of the operator network, which is outside the telecommunications network, that receives and

processes CDR files from the network charging functions. It includes functions that can provide billing mediation and

billing or other (e.g. statistical) end applications. It is only applicable to offline charging (see 'Online Charging System'

CDR field categories: the CDR fields are defined in the present document. They are divided into the following

• Conditional (C): field that shall be present in a CDR if certain conditions are met.

• Operator Provisionable: Mandatory (O ): A field that operators have provisioned to always be included in the

• Operator Provisionable: Conditional (O ): A field that operators have provisioned to be included in the CDR if

chargeable event: activity utilizing telecommunications network resources and related services for:

user to user communication (e.g. a single call, a data communication session or a short message); or

inter-network communication (e.g. transferring calls, signalling, or short messages); or

As a minimum, a chargeable event characterises the resource / service usage and indicates the identity of the involved

end user(s).charging: a function within the telecommunications network and the associated OCS/BD components

whereby information related to a chargeable event is collected, formatted, transferred and evaluated in order to make it

Charging Data Record (CDR): a formatted collection of information about a chargeable event (e.g. time of call set-up,

duration of the call, amount of data transferred, etc) for use in billing and accounting. For each party to be charged for

parts of or all charges of a chargeable event a separate CDR shall be generated, i.e. more than one CDR may be

generated for a single chargeable event, e.g. because of its long duration, or because more than one charged party is to

charging event: a set of charging information forwarded by the CTF towards the CDF (offline charging) or towards the

charging function: entity inside the network domain, subsystem or service that is involved in charging for that domain,

circuit switched domain: domain within GSM / UMTS in which information is transferred in circuit switched mode.

domain: part of a communication network that provides network resources using a certain bearer technology.

Fully Qualified Partial CDR (FQPC): partial CDR that contains a complete set of the fields specified in the present

document. This includes all the mandatory and conditional fields as well as those fields that the PLMN operator has

provisioned to be included in the CDR. The first Partial CDR shall be a Fully qualified Partial CDR.

LCS Client: software and/or hardware entity that interacts with a LCS Server for the purpose of obtaining location

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 Server: software and/or hardware entity offering LCS capabilities. The LCS Server accepts requests, services

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 3 party service provider that utilizes the

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

The Location Estimate shall be 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

middle tier (charging) TS: used for the 3GPP charging TSs that specify the domain / subsystem / service specific,

online and offline, charging functionality. These are all the TSs in the numbering range from 3GPP TS 32.250 to 3GPP

TS 32.279, e.g. 3GPP TS 32.250 [10] for the CS domain, or 3GPP TS 32.270 [30] for the MMS service. Currently,

there is only one "tier 1" TS in 3GPP, which is TS 32.240 [1] that specifies the charging architecture and principles.

Finally, there are a number of top tier TSs in the 32.29x numbering range ([50] ff) that specify common charging

aspects such as parameter definitions, encoding rules, the common billing domain interface or common charging

offline charging: charging mechanism where charging information does not affect, in real-time, the service rendered.

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 bearer/session/service control is required.

packet switched domain: domain within GSM / UMTS in which data is transferred in packet switched mode.

partial CDR: CDR that provides information on part of a subscriber session. A long session may be covered by several

partial CDRs. Two formats are considered for Partial CDRs. One that contains all of the specified fields (FQPC); the

Positioning method (/locating method): method or technical solution, which is used to get an estimate of the target

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

user: an entity, not part of the 3GPP System, that uses network resources by means of a subscription. The user may or

User Equipment (UE): a device allowing a user access to network services. For the purpose of 3GPP specifications the

interface between the UE and the network is the radio interface. A User Equipment can be subdivided into a number of

domains, the domains being separated by reference points. Currently defined domains are the USIM and ME Domains.

The ME Domain can further be subdivided into several components showing the connectivity between multiple

functional groups. These groups can be implemented in one or more hardware devices. An example of such a

connectivity is the TE – MT interface. Further, an occurrence of a User Equipment is an MS for GSM as defined in

GSM TS 04.02.UE in the present document may also refer to a Mobile Equipment or User Equipment used for

For the purposes of the present document, the abbreviations defined in 3GPP TR 21.905 [100], 3GPP TS 23.271 [20]

ITU-T International Telecommunication Union - Telecommunications standardization sector

Figure 4.1 depicts the logical LCS architecture, as described in3GPP TS 23.271 [201].

As can be seen in figure 4.1, the following LCS elements are relevant for charging:

Editor's note: Add a statement stating that the SGSN and the MSC have also a role in the LCS Charging and that the

As described in TS 32.240 [1], the CTF (an integrated component in each charging relevant NE) generates charging

events and forwards them to the CDF. The CDF, in turn, generates CDRs which are then transferred to the CGF.

In LCS, all charging functions (CTF, CDF and CGF) reside within the LCS R/S. I.e. the GMLC is connected directly to