1、 ETSI TS 123 031 V15.0.0 (2018-06) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); 3G Security; Fraud Information Gathering System (FIGS); Technical realization; Stage 2 (3GPP TS 23.031 version 15.0.0 Release 15) TECHNICAL SPECIFICATION
2、 ETSI ETSI TS 123 031 V15.0.0 (2018-06)13GPP TS 23.031 version 15.0.0 Release 15Reference RTS/TSGS-0323031vf00 Keywords GSM,SECURITY,UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Associati
3、on but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print ve
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9、red and owned by the GSM Association. ETSI ETSI TS 123 031 V15.0.0 (2018-06)23GPP TS 23.031 version 15.0.0 Release 15Intellectual Property Rights Essential patents IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information pertaining to these es
10、sential 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 upda
11、tes 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 serv
12、er) 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 ETS
13、I, 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 prod
14、uced 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 be
15、tween GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp. 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
16、.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 ETSI TS 123 031 V15.0.0 (2018-06)33GPP TS 23.031 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Forew
17、ord . 2g3Modal verbs terminology 2g3Foreword . 4g31 Scope 5g32 Normative references . 5g33 Definitions and abbreviations . 5g33.1 Definitions 5g33.2 Abbreviations . 6g34 FIGS Monitoring Levels 6g35 FIGS Level 1: Accelerated TAP Records 6g35.1 Method of FIGS Setting . 6g35.2 Information Flows 7g36 FI
18、GS and CAMEL Architecture for FIGS Levels 2 and 3 . 7g37 FIGS Levels 2 and 3 . 8g37.1 Method of FIGS Setting . 8g37.2 Information Flows 8g37.2.1 Mobile Originated and Mobile Terminated Calls . 9g37.2.1.1 Call Start Time 9g37.2.1.2 Partial Call Records. 9g37.2.1.3 Call End Time . 10g37.2.2 Forwarded
19、Call . 10g37.2.2.1 Call Start Time 10g37.2.2.2 Partial Call Records. 10g37.2.2.3 Call End Time . 10g37.2.3 Supplementary Service Invocation . 10g3Annex A (informative): FIGS Data provided by CAMEL Messages. 11g3Annex B (informative): Information Flow for FIGS Levels 2 and 3 . 14g3Annex C (informativ
20、e): Change history . 16g3History 17g3ETSI ETSI TS 123 031 V15.0.0 (2018-06)43GPP TS 23.031 version 15.0.0 Release 15Foreword This Technical Specification has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to continuing work within the
21、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 info
22、rmation; 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, corrections, updates, etc. z the third digit is incremented when editorial only changes have been
23、incorporated in the document. ETSI ETSI TS 123 031 V15.0.0 (2018-06)53GPP TS 23.031 version 15.0.0 Release 151 Scope This Technical Specification specifies the stage 2 description of the Fraud Information Gathering System (FIGS) feature which provides the means for the HPLMN to monitor the activitie
24、s of its subscribers in a VPLMN. Three levels of FIGS service are defined, levels 1 to 3. Level 1 will use the facilities provided by Transferred Account Procedure (TAP). Levels 2 and 3 will use facilities provided by Customised Applications for Mobile network Enhanced Logic (CAMEL), in particular,
25、the information flows between the GSM Service Switching Function (gsmSSF) and GSM Service Control Function (gsmSCF). Phase 1 and Phase 2 CAMEL facilities will be used. Connection-orientated services only are covered. 2 Normative references The following documents contain provisions which, through re
26、ference 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 v
27、ersion 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 GSM 01.04: “Digital cellular telecommunications system (Phase 2+); Abbreviations
28、and acronyms“. 2 3GPP TS 42.031: “Digital cellular telecommunications system (Phase 2+); Fraud Information Gathering System (FIGS) - Stage 1“. 3 GSM 03.78: “Digital cellular telecommunications system (Phase 2+); Customised Application for Mobile network Enhanced Logic (CAMEL Phase 1)” - stage 2; ver
29、sion 5.x.y“. (GSM Release 96) 4 GSM 03.78: “Digital cellular telecommunications system (Phase 2+); Customised Application for Mobile network Enhanced Logic (CAMEL Phase 2) - stage 2; version 6.x.y“. (GSM Release 97) NOTE: 3 specifies CAMEL Phase 1 functionality, 4 specifies CAMEL Phase 2 functionali
30、ty. 3 Definitions and abbreviations 3.1 Definitions For the purposes of this specification the following definitions apply: A subscriber: The calling mobile subscriber. B subscriber: The mobile subscriber originally called by the A subscriber. C subscriber: The subscriber to whom the B subscriber ha
31、s requested that calls be forwarded. The C subscriber may be fixed or mobile. call: connection-oriented service/event. GSM Service Control Function (gsmSCF): A functional entity that contains the CAMEL service logic to implement OSS. It interfaces with the gsmSSF and the HLR. ETSI ETSI TS 123 031 V1
32、5.0.0 (2018-06)63GPP TS 23.031 version 15.0.0 Release 15GSM Service Switching Function (gsmSSF): A functional entity that interfaces the MSC/GMSC to the gsmSCF. The concept of the gsmSSF is derived from the IN gsmSSF, but uses different triggering mechanisms because of the nature of the mobile netwo
33、rk. Originating CAMEL Subscription Information (O-CSI): The O-CSI identifies the subscriber as having originating CAMEL services. Supplementary Service Notification CAMEL Subscription Information (SS-CSI): The SS-CSI identifies the subscriber as having supplementary service invocation notification C
34、AMEL services. Terminating CAMEL Subscription Information (T-CSI): The T-CSI identifies the subscriber as having terminating CAMEL services. VMSC: The serving MSC in the VPLMN. 3.2 Abbreviations Abbreviations used in this specification are listed in GSM 01.04. For the purposes of this specification
35、the following abbreviations apply: CAMEL Customised Applications for Mobile network Enhanced Logic CGI Cell Global Identifier FIGS Fraud Information Gathering System FDS Fraud Detection System MO Mobile Originated MT Mobile TerminatedO-CSI Originating CAMEL Subscription Information OSS Operator Spec
36、ific Services SS-CSI Supplementary Service Notification CAMEL Subscription Information T-CSI Terminating CAMEL Subscription Information TAP Transferred Account Procedure 4 FIGS Monitoring Levels There are three levels of monitoring of subscriber activities using FIGS. Level 1 an accelerated TAP proc
37、edure associated with a mechanism such as Hot Billing is implemented in the MSC of the VPLMN. Level 2 CAMEL is used to gather information, but only at the beginning and the end of the call. Level 3 CAMEL provides full information on subscriber activities, as defined in 3GPP TS 42.031, i.e. call star
38、t and end times, and partial call records. Notification of the invocation of Explicit Call Transfer, Call Deflection, Call Forwarding, Call Hold and Multi Party Service is also given. 5 FIGS Level 1: Accelerated TAP Records 5.1 Method of FIGS Setting A PLMN shall request that a VPLMN monitor a desig
39、nated subscriber using FIGS level 1 by setting a Hot Billing flag in the subscriber data stored in the HLR of the HPLMN. This data is drawn down by the VPLMN when the subscriber first registers in the VPLMN. If the HPLMN wishes to begin monitoring of a subscriber using FIGS Level 1 when the subscrib
40、er is already registered in the VPLMN, it resets the subscriber data in the VPLMN using command Insert Subscriber Data. ETSI ETSI TS 123 031 V15.0.0 (2018-06)73GPP TS 23.031 version 15.0.0 Release 155.2 Information Flows If a subscriber in a VPLMN is set in the subscriber categories to be monitored
41、using FIGS Level 1 the VMSC shall process and return the TAP records for that subscriber in accordance with the guidelines given in current and future version of TAP. 6 FIGS and CAMEL Architecture for FIGS Levels 2 and 3 FIGS provides the following information flows to the HPLMN, with respect to roa
42、ming subscribers monitored by FIGS Levels 2 and 3. FIGS Level 2: call start and end times (both MO, MT and forwarded calls). (At CAMEL Phase 1 the gsmSSF will not put a timestamp on messages. The arrival times of messages at the gsmSCF will be used for call start and end times.) FIGS Level 3: As for
43、 level 2 with the addition of: partial call information (accumulated duration of call still in progress) (CAMEL Phase only); notification of the invocation of ECT, CD and MPTY, CF and call hold (CAMEL Phase 2 only). Further phases of CAMEL will provide the functionality to check the IMEI of the ME u
44、sed by a CAMEL subscriber. Other information required by 3GPP TS 42.031, annex A, that is not provided by CAMEL Phase 1 and CAMEL Phase 2, may also be provided by further phases of CAMEL. The architecture of the services provided by FIGS Levels 2 and 3 is given in the diagrams below. Thick lines ind
45、icate possible CAMEL monitoring/control relationships. gsmSCFV gsmSSFVMSC AVLRMO sideHPLMNVPLMNOutgoing MO legFDSFIGS commandsFIGS dataFigure 1: FIGS architecture for MO call ETSI ETSI TS 123 031 V15.0.0 (2018-06)83GPP TS 23.031 version 15.0.0 Release 15MT sideHPLMNVPLMN BIPLMN BVLRVMSCVgsmSSFgsmSCF
46、 HLRLate Forwarding legGMSC IgsmSSFMT legEarlyForwarding legRoaming legFDSFIGS commandsFIGS dataIncoming legFor forwarding at VMSCFigure 2: FIGS Architecture for MT/forwarded call Early call forwarding can be performed if the subscriber has set Unconditional Call Forward or the HLR has determined, b
47、efore the call is extended to VPLMN B, that the B subscriber is not reachable. In all other cases the call must be extended to the VMSC. The information flows required by FIGS levels 2 and 3 can be provided by the information flows on the CAP interfaces between the gsmSCF and the gsmSSF in the inter
48、rogating and visiting networks. The interface between the gsmSCF and the Fraud Detection System (FDS) is non-standard. 7 FIGS Levels 2 and 3 7.1 Method of FIGS Setting A PLMN shall request that a VPLMN monitor a designated subscriber using FIGS levels 2 or 3 by setting the O-CSI, T-CSI and SS-CSI (l
49、evel 3 only) flags in the subscriber data stored in the HLR of the HPLMN. This data is drawn down by the VPLMN when the subscriber first registers in the VPLMN. If the HPLMN wishes to begin monitoring of a subscriber using FIGS Level 2 or 3 when the subscriber is already registered in the VPLMN, it resets the subscriber data in the VPLMN using command Insert Subscriber Data. 7.2 Information Flows FIGS Levels 2 and 3 will be treated together in this section but it should be remembered that partial call records and SS notification invocation is not available with FIG
