1、 ETSI TS 123 031 V14.0.0 (2017-03) 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 14.0.0 Release 14) TECHNICAL SPECIFICATION
2、 GLOBAL SYSTEM FOR MOBILE COMMUNICATIONSRETSI ETSI TS 123 031 V14.0.0 (2017-03)13GPP TS 23.031 version 14.0.0 Release 14Reference RTS/TSGS-0323031ve00 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
3、 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 in print. The c
4、ontent of any electronic and/or print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable D
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6、.org/TB/ETSIDeliverableStatus.aspx If you find errors in the present document, please send your comment to one of the following services: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or me
7、chanical, including photocopying and microfilm except as authorized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunicati
8、ons Standards Institute 2017. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM
9、 logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 123 031 V14.0.0 (2017-03)23GPP TS 23.031 version 14.0.0 Release 14Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to
10、 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. La
11、test 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
12、 Web server) which are, or may be, or may become, essential to the present document. Foreword 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 ETS
13、I 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 “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to b
14、e 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 ETSI TS 123 031 V14.0.0 (2017-03)33GPP TS 23.031 version 14.0.0 Release 14Contents
15、 Intellectual Property Rights 2g3Foreword . 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 7g35.1 Method of FIGS Sett
16、ing . 7g35.2 Information Flows 7g36 FIGS and CAMEL Architecture for FIGS Levels 2 and 3 . 7g37 FIGS Levels 2 and 3 . 9g37.1 Method of FIGS Setting . 9g37.2 Information Flows 9g37.2.1 Mobile Originated and Mobile Terminated Calls . 9g37.2.1.1 Call Start Time 9g37.2.1.2 Partial Call Records. 10g37.2.1
17、.3 Call End Time . 10g37.2.2 Forwarded Call . 11g37.2.2.1 Call Start Time 11g37.2.2.2 Partial Call Records. 11g37.2.2.3 Call End Time . 11g37.2.3 Supplementary Service Invocation . 11g3Annex A (informative): FIGS Data provided by CAMEL Messages. 12g3Annex B (informative): Information Flow for FIGS L
18、evels 2 and 3 . 15g3Annex C (informative): Change history . 17g3History 18g3ETSI ETSI TS 123 031 V14.0.0 (2017-03)43GPP TS 23.031 version 14.0.0 Release 14Foreword This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The contents of the present docum
19、ent 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:
20、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, corrections, updates, etc. z the third digit is incr
21、emented when editorial only changes have been incorporated in the document. ETSI ETSI TS 123 031 V14.0.0 (2017-03)53GPP TS 23.031 version 14.0.0 Release 141 Scope This Technical Specification specifies the stage 2 description of the Fraud Information Gathering System (FIGS) feature which provides th
22、e 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 Procedure (TAP). Levels 2 and 3 will use facilities provided by Customised Applications for Mobile n
23、etwork 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 will be used. Connection-orientated services only are covered. 2 Normative references The following
24、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. Fo
25、r 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 GSM 01.04: “Digital cellular telecommunic
26、ations 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: “Digital cellular telecommunications system (Phase 2+); Customised Application for Mobile network Enhanc
27、ed 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 (CAMEL Phase 2) - stage 2; version 6.x.y“. (GSM Release 97) NOTE: 3 specifies CAMEL Phase 1 functionalit
28、y, 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 subscriber. B subscriber: The mobile subscriber originally called by the A subscriber. C subscriber: Th
29、e 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 V14.0.0 (2017-03)63GPP TS 23.031 version 14.0.0 Release 14GSM Service Control Function (gsmSCF): A functional entity tha
30、t 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. The concept of the gsmSSF is derived from the IN gsmSSF, but uses different triggering mechanisms b
31、ecause 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 Notification CAMEL Subscription Information (SS-CSI): The SS-CSI identifies the subscriber as having supplem
32、entary 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 MSC in the VPLMN. 3.2 Abbreviations Abbreviations used in this specification are listed in GSM 01.04.
33、 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 System FDS Fraud Detection System MO Mobile Originated MT Mobile TerminatedO-CSI Originating CAMEL Su
34、bscription Information OSS Operator Specific 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 usi
35、ng 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 beginning and the end of the call. Level 3 CAMEL provides full information on subscriber activities, as d
36、efined 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 Service is also given. ETSI ETSI TS 123 031 V14.0.0 (2017-03)73GPP TS 23.031 version 14.0.0 Release
37、 145 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 subscriber data stored in the HLR of the HPLMN. This data is drawn down by the VPLMN when the subscriber fir
38、st 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 using command Insert Subscriber Data. 5.2 Information Flows If a subscriber in a VPLMN is set in th
39、e 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 TAP. 6 FIGS and CAMEL Architecture for FIGS Levels 2 and 3 FIGS provides the following information
40、 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 not put a timestamp on messages. The arrival times of messages at the gsmSCF will be used for call st
41、art 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 ECT, CD and MPTY, CF and call hold (CAMEL Phase 2 only). Further phases of CAMEL will provide the fun
42、ctionality 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 by further phases of CAMEL. The architecture of the services provided by FIGS Levels 2 and 3 is give
43、n in the diagrams below. Thick lines indicate possible CAMEL monitoring/control relationships. ETSI ETSI TS 123 031 V14.0.0 (2017-03)83GPP TS 23.031 version 14.0.0 Release 14gsmSCFV gsmSSFVMSC AVLRMO sideHPLMNVPLMNOutgoing MO legFDSFIGS commandsFIGS dataFigure 1: FIGS architecture for MO call MT sid
44、eHPLMNVPLMN BIPLMN BVLRVMSCVgsmSSFgsmSCF HLRLate Forwarding legGMSC IgsmSSFMT legEarlyForwarding legRoaming legFDSFIGS commandsFIGS dataIncoming legFor forwarding at VMSCFigure 2: FIGS Architecture for MT/forwarded call ETSI ETSI TS 123 031 V14.0.0 (2017-03)93GPP TS 23.031 version 14.0.0 Release 14E
45、arly 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 all other cases the call must be extended to the VMSC. The information flows required by FIGS level
46、s 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 Detection System (FDS) is non-standard. 7 FIGS Levels 2 and 3 7.1 Method of FIGS Setting A PLMN shall
47、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 data is drawn down by the VPLMN when the subscriber first registers in the VPLMN. If the HPLMN wishes
48、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 rem
49、embered 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 the call is MO, the relevant DP is O_answer, and that if the call is MT, the relevant DP is T_answe
