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TECHNICAL SPECIFICATION
Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS);
LTE;
Telecommunication management;
Charging management;
Charging architecture and principles
(3GPP TS 32.240 version 15.3.0 Release 15)
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3GPP TS 32.240 version 15.3.0 Release 15 1 ETSI TS 132 240 V15.3.0 (2018-10)
Reference
RTS/TSGS-0532240vf30
Keywords
GSM,LTE,UMTS
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DECT , PLUGTESTS , UMTS and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.
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3GPP and LTE are trademarks of ETSI registered for the benefit of its Members and
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GSM and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI
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3GPP TS 32.240 version 15.3.0 Release 15 2 ETSI TS 132 240 V15.3.0 (2018-10)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
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
.
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
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3GPP TS 32.240 version 15.3.0 Release 15 3 ETSI TS 132 240 V15.3.0 (2018-10)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 6
1 Scope . 7
2 References . 9
3 Definitions, symbols and abbreviations . 12
3.1 Definitions . 12
3.2 Symbols . 14
3.3 Abbreviations . 15
4 Common charging architecture and framework . 18
4.0 Introduction . 18
4.1 Charging mechanisms . 19
4.1.0 General . 19
4.1.1 Offline charging . 19
4.1.2 Online charging . 19
4.1.3 Converged charging . 19
4.2 High level common architecture . 20
4.2.1 General . 20
4.2.2 Common architecture – reference points . 20
4.2.3 Common architecture – service based interface. 22
4.3 Charging functions . 23
4.3.1 Offline charging functions . 23
4.3.1.0 General . 23
4.3.1.1 Charging Trigger Function . 23
4.3.1.2 Charging Data Function . 25
4.3.1.3 Charging Gateway Function. 25
4.3.1.4 Offline Charging System . 25
4.3.2 Online charging functions . 26
4.3.2.0 General . 26
4.3.2.1 Charging Trigger Function . 26
4.3.2.2 Online Charging System . 27
4.3.2.2.0 General . 27
4.3.2.2.1 Online Charging Function . 27
4.3.2.2.2 S-CSCF online charging / IMS Gateway Function . 27
4.3.2.2.3 Rating Function . 27
4.3.2.2.4 Account Balance Management Function . 28
4.3.2.3 CDR generation for online charged subscribers . 28
4.3.3 Converged charging functions . 28
4.3.3.0 General . 28
4.3.3.1 Charging Trigger Function (CTF) . 28
4.3.3.2 Converged charging system . 28
4.4 Reference points . 30
4.4.1 Offline charging reference points . 30
4.4.1.1 Rf. 30
4.4.1.2 Gz . 30
4.4.1.3 Ga . 30
4.4.1.4 Bx . 30
4.4.1.5 Void. 31
4.4.1.6 Gzn . 31
4.4.2 Online charging reference points . 31
4.4.2.1 Ro . 31
4.4.2.2 CAP . 31
4.4.2.3 Gy . 31
ETSI
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3GPP TS 32.240 version 15.3.0 Release 15 4 ETSI TS 132 240 V15.3.0 (2018-10)
4.4.2.4 Re . 31
4.4.2.5 Rc . 31
4.4.2.6 Void. 32
4.4.2.7 Gyn . 32
4.5 Architecture mapping . 32
4.5.0 General . 32
4.5.1 Offline mapping . 32
4.5.2 Online mapping . 34
4.6 Service based interface . 34
4.6.1 Nchf . 34
5 Charging principles . 35
5.0 General . 35
5.1 Charging data generation and quota supervision . 35
5.2 Charging data transfer . 37
5.2.0 General . 37
5.2.1 Charging data transfer in offline charging . 37
5.2.1.0 General . 37
5.2.1.1 Transfer of charging events via Rf . 38
5.2.1.2 Transfer of CDRs via Ga . 38
5.2.1.3 Transfer of CDR files via Bx . 39
5.2.2 Charging data transfer in online charging . 40
5.3 Charging levels and correlation . 42
5.3.1 Bearer level charging . 42
5.3.1.1 Bearer charging based on bearer / tele- / supplementary service . 42
5.3.1.2 Flow based bearer charging. 42
5.3.2 Subsystem level charging . 42
5.3.3 Service level charging . 42
5.3.4 Charging data correlation . 42
5.3.4.0 General . 42
5.3.4.1 Intra-level correlation . 43
5.3.4.2 Inter-level correlation . 43
5.3.4.3 Inter-network correlation . 43
5.3.4.4 Determination of completeness of charging information in IMS . 45
5.3.4.4.1 General . 45
5.3.4.4.2 Tracking of IMS NEs generating charging information . 45
5.3.4.4.3 Tracking of applications generating charging information . 45
5.4 Charging data configuration . 45
5.5 Charging information utilisation . 47
5.5.0 Introduction. 47
5.5.1 Subscriber charging . 47
5.5.1.0 General . 47
5.5.1.1 Calling party charging . 47
5.5.1.2 Alternate party charging for IMS . 47
5.5.2 Credit-Control and balance management . 48
5.5.2.1 Use of credit pooling . 48
5.5.3 Inter-operator settlement of Charges . 48
5.5.3.1 Inter-PLMN accounting . 48
5.5.3.2 'Visitors' from other PLMNs . 48
5.5.3.4 'Home' subscribers roaming in other PLMNs . 48
5.5.3.5 Fixed network operators and other service providers . 49
5.5.3.6 IMS Interconnection. 49
5.5.3.7 Charging Principles for Roaming Architecture for Voice over IMS with Local Breakout . 49
5.5.3.8 Charging Principles for roaming architecture for voice over IMS with home routed traffic . 50
5.5.4 Advice of Charge . 50
Annex A (informative): Bibliography . 51
Annex B (normative): Single IMSI architecture for EU Roaming . 52
B.0 General . 52
B.1 Voice Control . 52
ETSI
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3GPP TS 32.240 version 15.3.0 Release 15 5 ETSI TS 132 240 V15.3.0 (2018-10)
Annex C (normative): Fixed Broadband Access . 53
C.1 General . 53
C.2 References . 53
C.3 Definitions, symbols and abbreviations . 53
C.4 Common charging architecture and framework . 53
C.4.1 Charging mechanisms . 53
C.4.2 High level common architecture . 53
C.4.3 Charging functions . 54
C.4.4 Reference points . 54
C.4.4.1 Offline charging reference points . 54
C.4.4.1.1 Gz . 54
C.4.4.1.2 Gzn . 54
C.4.4.2 Online charging reference points . 54
C.4.4.2.1 Gy . 54
C.4.4.2.2 Gyn . 54
Annex D (normative): Distributed Charging Trigger Function . 55
D.1 General . 55
D.2 Definitions, symbols and abbreviations . 55
D.2.1 Definitions . 55
D.2.2 Symbols . 55
D.2.3 Abbreviations . 55
D.3 Common charging architecture and framework . 55
D.3.1 Charging mechanisms . 55
D.3.2 High level common architecture . 55
D.4.3 Charging functions . 56
D.4.3.1 Offline charging functions . 56
D.4.3.1.1 Charging Trigger Function . 56
D.4.3.2 Online charging functions . 56
D.4.4 Reference points . 56
D.4.4.1 Offline charging reference points . 56
D.4.4.1.1 Xch . 56
D.4.4.2 Online charging reference points . 56
Annex E (Informative): High level overall charging architecture. . 57
E.1 General . 57
E.2 Common charging architecture and framework . 57
E.2.1 High level common architecture . 57
Annex F (informative): Change history . 58
History . 61
ETSI
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3GPP TS 32.240 version 15.3.0 Release 15 6 ETSI TS 132 240 V15.3.0 (2018-10)
Foreword
rd
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
identifying change of release date and an increase in version number as follows:
Version x.y.z
where:
x the first digit:
1 presented to TSG for information;
2 presented to TSG for approval;
3 or greater indicates TSG approved document under change control.
y the second digit is incremented for all changes of substance, i.e. technical enhancements, corre
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