1、 ETSI TS 1Digital cellular telecoUniversal Mobile TelFraud InformatTec(3GPP TS 23.0TECHNICAL SPECIFICATION123 031 V13.0.0 (2016communications system (Phaelecommunications System (3G Security; ation Gathering System (FIGSechnical realization; Stage 2 .031 version 13.0.0 Release 13GLOBAL SYSTMOBILE CO
2、MMUN16-01) hase 2+); (UMTS); GS); 13) TEM FOR ICATIONSRETSI ETSI TS 123 031 V13.0.0 (2016-01)13GPP TS 23.031 version 13.0.0 Release 13Reference RTS/TSGS-0323031vd00 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
3、 47 16 Siret N 348 623 562 00017 - NAF 742 C Association 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 i
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9、 GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 123 031 V13.0.0 (2016-01)23GPP TS 23.031 version 13.0.0 Release 13Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertainin
10、g 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
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12、ETSI Web server) which are, or may be, or may become, essential to the present document. 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,
13、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 http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “shal
14、l“, “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
15、in direct citation. ETSI ETSI TS 123 031 V13.0.0 (2016-01)33GPP TS 23.031 version 13.0.0 Release 13Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g31 Scope 5g32 Normative references . 5g33 Definitions and abbreviations . 5g33.1 Definitions 5g33.2 Abbrev
16、iations . 6g34 FIGS Monitoring Levels 6g35 FIGS Level 1: Accelerated TAP Records 6g35.1 Method of FIGS Setting . 6g35.2 Information Flows 7g36 FIGS 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 Ori
17、ginated 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 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 (
18、informative): FIGS Data provided by CAMEL Messages. 11g3Annex B (informative): Information Flow for FIGS Levels 2 and 3 . 14g3Annex C (informative): Change history . 16g3History 17g3ETSI ETSI TS 123 031 V13.0.0 (2016-01)43GPP TS 23.031 version 13.0.0 Release 13Foreword This Technical Specification h
19、as been produced by the 3rdGeneration 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 ide
20、ntifying 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 chan
21、ges of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 123 031 V13.0.0 (2016-01)53GPP TS 23.031 version 13.0.0 Release 131 Scope This Technical Specification specifies
22、 the stage 2 description of the Fraud Information Gathering System (FIGS) feature which provides the means for the HPLMN to monitor the activities 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 P
23、rocedure (TAP). Levels 2 and 3 will use facilities provided by Customised Applications for Mobile network Enhanced Logic (CAMEL), in particular, the information flows between the GSM Service Switching Function (gsmSSF) and GSM Service Control Function (gsmSCF). Phase 1 and Phase 2 CAMEL facilities w
24、ill be used. Connection-orientated services only are covered. 2 Normative references 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, ver
25、sion 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 tha
26、t document in the same Release as the present document. 1 GSM 01.04: “Digital cellular telecommunications system (Phase 2+); Abbreviations and acronyms“. 2 3GPP TS 42.031: “Digital cellular telecommunications system (Phase 2+); Fraud Information Gathering System (FIGS) - Stage 1“. 3 GSM 03.78: “Digi
27、tal cellular telecommunications system (Phase 2+); Customised Application for Mobile network Enhanced Logic (CAMEL Phase 1)” - stage 2; version 5.x.y“. (GSM Release 96) 4 GSM 03.78: “Digital cellular telecommunications system (Phase 2+); Customised Application for Mobile network Enhanced Logic (CAME
28、L Phase 2) - stage 2; version 6.x.y“. (GSM Release 97) NOTE: 3 specifies CAMEL Phase 1 functionality, 4 specifies CAMEL Phase 2 functionality. 3 Definitions and abbreviations 3.1 Definitions For the purposes of this specification the following definitions apply: A subscriber: The calling mobile subs
29、criber. B subscriber: The mobile subscriber originally called by the A subscriber. C subscriber: The subscriber to whom the B subscriber has requested that calls be forwarded. The C subscriber may be fixed or mobile. call: connection-oriented service/event. ETSI ETSI TS 123 031 V13.0.0 (2016-01)63GP
30、P TS 23.031 version 13.0.0 Release 13GSM Service Control Function (gsmSCF): A functional entity that contains the CAMEL service logic to implement OSS. It interfaces with the gsmSSF and the HLR. GSM Service Switching Function (gsmSSF): A functional entity that interfaces the MSC/GMSC to the gsmSCF.
31、The concept of the gsmSSF is derived from the IN gsmSSF, but uses different triggering mechanisms because of the nature of the mobile network. Originating CAMEL Subscription Information (O-CSI): The O-CSI identifies the subscriber as having originating CAMEL services. Supplementary Service Notificat
32、ion CAMEL Subscription Information (SS-CSI): The SS-CSI identifies the subscriber as having supplementary service invocation notification CAMEL services. Terminating CAMEL Subscription Information (T-CSI): The T-CSI identifies the subscriber as having terminating CAMEL services. VMSC: The serving MS
33、C in the VPLMN. 3.2 Abbreviations Abbreviations used in this specification are listed in GSM 01.04. For the purposes of this specification the following abbreviations apply: CAMEL Customised Applications for Mobile network Enhanced Logic CGI Cell Global Identifier FIGS Fraud Information Gathering Sy
34、stem FDS Fraud Detection System MO Mobile Originated MT Mobile TerminatedO-CSI Originating CAMEL Subscription Information OSS Operator Specific Services SS-CSI Supplementary Service Notification CAMEL Subscription Information T-CSI Terminating CAMEL Subscription Information TAP Transferred Account P
35、rocedure 4 FIGS Monitoring Levels There are three levels of monitoring of subscriber activities using FIGS. Level 1 an accelerated TAP procedure 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 beginn
36、ing 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 start and end times, and partial call records. Notification of the invocation of Explicit Call Transfer, Call Deflection, Call Forwarding, Call Hold and Multi Party
37、Service is also given. ETSI ETSI TS 123 031 V13.0.0 (2016-01)73GPP TS 23.031 version 13.0.0 Release 135 FIGS Level 1: Accelerated TAP Records 5.1 Method of FIGS Setting A PLMN shall request that a VPLMN monitor a designated subscriber using FIGS level 1 by setting a Hot Billing flag in the subscribe
38、r 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 subscriber is already registered in the VPLMN, it resets the subscriber data in the VPLMN
39、using command Insert Subscriber Data. 5.2 Information Flows If a subscriber in a VPLMN is set in the subscriber categories to be monitored 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
40、 TAP. 6 FIGS and CAMEL Architecture for FIGS Levels 2 and 3 FIGS provides the following information flows to the HPLMN, with respect to roaming 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 no
41、t 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 level 2 with the addition of: partial call information (accumulated duration of call still in progress) (CAMEL Phase only); notification of the invocation of EC
42、T, 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 used 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 b
43、y further phases of CAMEL. The architecture of the services provided by FIGS Levels 2 and 3 is given in the diagrams below. Thick lines indicate possible CAMEL monitoring/control relationships. ETSI ETSI TS 123 031 V13.0.0 (2016-01)83GPP TS 23.031 version 13.0.0 Release 13gsmSCFV gsmSSFVMSC AVLRMO s
44、ideHPLMNVPLMNOutgoing MO legFDSFIGS commandsFIGS dataFigure 1: FIGS architecture for MO call MT sideHPLMNVPLMN BIPLMN BVLRVMSCVgsmSSFgsmSCF HLRLate Forwarding legGMSC IgsmSSFMT legEarlyForwarding legRoaming legFDSFIGS commandsFIGS dataIncoming legFor forwarding at VMSCFigure 2: FIGS Architecture for
45、 MT/forwarded call ETSI ETSI TS 123 031 V13.0.0 (2016-01)93GPP TS 23.031 version 13.0.0 Release 13Early call forwarding can be performed if the subscriber has set Unconditional Call Forward or the HLR has determined, before the call is extended to VPLMN B, that the B subscriber is not reachable. In
46、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 interrogating and visiting networks. The interface between the gsmSCF and the Fraud Det
47、ection 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 (level 3 only) flags in the subscriber data stored in the HLR of the HPLMN. This dat
48、a 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
49、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 FIGS Level 2. Each item of call data required by FIGS will be considered in turn and the information flows within CAMEL which provide this data given. Text applies to the implementation of FIGS functionality using both Phases 1 and 2, unless otherwise stated. MO and MT calls will be treated together. If a message or DP is named as O/T_Answer, for instance, this means that if
