ITU-T M 3210 1-2001 TMN management services for IMT-2000 security management (Study Group 4)《国际移动通信-2000(IMT-2000)安全管理的TMN管理业务》.pdf

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1、 INTERNATIONAL TELECOMMUNICATION UNION ITU-T M.3210.1 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (01/2001) SERIES M: TMN AND NETWORK MAINTENANCE: INTERNATIONAL TRANSMISSION SYSTEMS, TELEPHONE CIRCUITS, TELEGRAPHY, FACSIMILE AND LEASED CIRCUITS Telecommunications management network TMN managemen

2、t services for IMT-2000 security management ITU-T Recommendation M.3210.1 (Formerly CCITT Recommendation) ITU-T M-SERIES RECOMMENDATIONS TMN AND NETWORK MAINTENANCE: INTERNATIONAL TRANSMISSION SYSTEMS, TELEPHONE CIRCUITS, TELEGRAPHY, FACSIMILE AND LEASED CIRCUITS Introduction and general principles

3、of maintenance and maintenance organization M.10M.299 International transmission systems M.300M.559 International telephone circuits M.560M.759 Common channel signalling systems M.760M.799 International telegraph systems and phototelegraph transmission M.800M.899 International leased group and super

4、group links M.900M.999 International leased circuits M.1000M.1099 Mobile telecommunication systems and services M.1100M.1199 International public telephone network M.1200M.1299 International data transmission systems M.1300M.1399 Designations and information exchange M.1400M.1999 International trans

5、port network M.2000M.2999 Telecommunications management network M.3000M.3599 Integrated services digital networks M.3600M.3999 Common channel signalling systems M.4000M.4999 For further details, please refer to the list of ITU-T Recommendations. ITU-T M.3210.1 (01/2001) i ITU-T Recommendation M.3210

6、.1 TMN management services for IMT-2000 security management Summary This Recommendation is one of the series of M.3200 Recommendations on TMN Management Services that provide description of management services, goals and context for management aspects of IMT-2000 networks. This Recommendation provid

7、es a profile for fraud management in an IMT-2000 mobile network. This Recommendation builds on the function sets identified in ITU-T M.3400 by defining new function sets, functions and parameters and adding additional semantics and restrictions. Source ITU-T Recommendation M.3210.1 was prepared by I

8、TU-T Study Group 4 (2001-2004) and approved under the WTSA Resolution 1 procedure on 19 January 2001. Keywords Telecommunications Management Network (TMN), TMN Management Service, International Mobile Telecommunications: IMT-2000, Security Management, Fraud Detection and Containment, Third Generatio

9、n Wireless 3G Systems. ii ITU-T M.3210.1 (01/2001) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for stud

10、ying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study grou

11、ps which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with I

12、SO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Reco

13、mmendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of ap

14、proval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementors are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TS

15、B patent database. ITU 2001 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from ITU. ITU-T M.3210.1 (01/2001) iii CONTENTS Page 1 Introduction. 1

16、 1.1 Purpose and scope. 1 2 References. 1 3 Definitions 1 3.5 Role-related definitions. 2 4 Abbreviations and acronyms 2 4.1 Conventions 2 5 Security Management Service 3 5.1 Security issues. 3 5.2 Management Service description 3 6 Management high-level requirements 4 6.1 Management Service overvie

17、w. 6 6.2 Telecommunication resources 6 6.2.1 Fraud Information Gathering System (FIGS) 6 6.2.2 Visited Network. 7 6.2.3 Home Network Fraud Detection System (HN-FDS). 7 6.3 Fraud Information Gathering use cases 7 6.3.1 Fraud Alert use case 8 6.3.2 Activate Information Gathering use case 8 6.3.3 Repor

18、t FIGS use case 9 6.3.4 Deactivate Information Gathering use case. 9 6.3.5 Modify FIGS Report use case . 10 6.3.6 Advise Suspend FIGS Monitoring use case 10 6.3.7 Advise Resume FIGS Monitoring use case. 11 7 Management Functions analysis. 11 7.1 Fraud Information Gathering Function set . 11 7.2 Obje

19、ct Classes and State Chart . 11 7.3 Fraud Information Gathering functions and sequence diagrams 13 7.3.1 Fraud Alert function 13 7.3.2 Activate Information Gathering function 13 7.3.3 Report FIGS function 14 7.3.4 Deactivate Information Gathering function. 15 7.3.5 Modify FIGS Report function . 16 7

20、.3.6 Advise Suspend FIGS Monitoring function 18 7.3.7 Advise Resume FIGS Monitoring function. 19 iv ITU-T M.3210.1 (01/2001) Page Annex A Fraud Management criteria 20 Annex B Information transferred by the Visited Network . 21 ITU-T M.3210.1 (01/2001) 1 ITU-T Recommendation M.3210.1 TMN management s

21、ervices for IMT-2000 security management 1 Introduction This Recommendation provides requirements and analysis of the security management (administration) of IMT-2000. The emphasis is on the X interface between two service providers and the management services needed between the two service provider

22、s to detect and prevent fraud. The methodology used in this Recommendation is based on ITU-T M.3020. 1.1 Purpose and scope This Recommendation describes a subset of security management services, identified in ITU-T M.3200 as a TMN managed area, for IMT-2000 management. It describes the requirements

23、and analysis of operating the Fraud Information Gathering System (FIGS) between service providers. FIGS provides the means for the wireless service provider to monitor a defined set of subscriber activities. The aim is to enable service providers/network operators to use FIGS to limit their financia

24、l exposure to large unpaid bills produced on subscriber accounts whilst the subscriber is roaming outside their home areas. Verification of the authenticity of the Home Network-FDS and the Visited Service Provider is beyond the scope of this management service. 2 References The following ITU-T Recom

25、mendations and other references contain provisions, which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; users of this Recommendation are t

26、herefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. 1 ITU-T Q.1701 (1999), Framework of IMT-2000 Networks. 2 ITU-T Q.1711 (1999), N

27、etwork functional model for IMT-2000. 3 ITU-T Q.1721 (2000), Information flows for IMT-2000 capability set 1. 4 ITU-T M.3010 (2000), Principles for a telecommunications management network. 5 ITU-T M.3020 (2000), TMN interface specification methodology. 6 ITU-T M.3200 (1997), TMN management services

28、and telecommunications managed areas: overview. 7 ITU-T M.3400 (2000), TMN management functions. 3 Definitions This Recommendation defines the following terms: 3.1 visited network: The foreign or Visited Network which provides subscriber with roaming service. 3.2 home network: The Home Network to wh

29、ich the wireless subscriber contracts service. 2 ITU-T M.3210.1 (01/2001) 3.3 home network-FDS: The Fraud Detection System operated by the Home Network. 3.4 fraud report: A Fraud Report is the set of potential violations that the subscriber has performed that may indicate potential fraud. This typic

30、ally captures threshold violations from the subscribers normal patterns or criteria (like calling countries, high usage limits). 3.5 Role-related definitions This Recommendation makes use of the following roles defined in ITU-T M.3208.1: service customer; network operator. 4 Abbreviations and acrony

31、ms This Recommendation uses the following abbreviations: FDS Fraud Detection System FIGS Fraud Information Gathering System GDMI Guidelines for the Definition of TMN Management Interface IMT-2000 International Mobile Telecommunications 2000 ITU International Telecommunication Union MS Management Ser

32、vices N/A Not Applicable NML Network Management Layer SML Service Management Layer TMN Telecommunications Management Network 4.1 Conventions Symbol Explanation M Mandatory m(=) The recipient must provide the same value in the response as provided in the request by the requestor. O Optional: Optional

33、ity is subject to definition according to the agreement between the two service providers, i.e. a parameter listed as optional may be made mandatory. o(=) Return of the value by the responder is optional; however, if the responder elects to return the value, it must be the same value supplied by the

34、 requestor in the request. Responder is not allowed to alter this field. C Conditional parameter: Definition of the Condition will be specified in the Notes column. A numeric suffix is used to enable reuse of the conditional statements. c(=) If the value is provided in the request by the requestor,

35、the responder must provide the same value in the response. Blank A blank implies that the parameter is not applicable. ITU-T M.3210.1 (01/2001) 3 5 Security Management Service 5.1 Security issues Modern telecommunication networks, particularly mobile networks, provide the potential for fraudsters to

36、 make use of telecommunication services (voice, data, fax, etc.) without the intent to pay. A number of different scenarios are exploited and it is up to the network operator or service provider to detect misuse where it occurs and to stop it at the earliest possible opportunity. The scale of frauds

37、 (per day on a single account) can be substantial, especially when international or premium rate numbers are called. The most common types of fraud that affect 3G networks are related to the ability to sell calls at below market price using stolen air-time/equipment where the user of the equipment d

38、oes not intend to pay the network operator or the service provider. Fraudulent subscribers often avoid payment by obtaining a handset and a subscription to a network by fraudulently giving details and justifications to the network operators/service provider. If there are not good controls within the

39、 network, the subscriber can make a large volume of calls to expensive destinations and accumulate a large bill. 5.2 Management Service description With wireless subscribers roaming from one network operator to another (and with multiple service providers), Security Management Service becomes of par

40、amount importance. This Recommendation specifies the Security Management related information exchanged over the x reference point between two TMN Operating System (OS)s (the Visited Network and the Home Network). TMN relationships for IMT-2000 Security Management Service: Fraud Information Gathering

41、 are depicted in Figure 1. It shows the wireless subscriber roaming to a network of a visited service provider. T0414780-0001427xx32456a) b)3FraudDetectionSystemHome NetworkVisitedNetworksHome NetworkFraud Detection SystemHomeNetworkVisited NetworksVisited NetworkFraud Detection System0 FDS invocati

42、on from outside1 Request for FIGS(Fraud Information Gathering System) monitoring2 Request for FIGS monitoring3 FIGS Data4 FIGS Data1 Fraud Suspicion Information2 Fraud Suspicion Information3 Fraud Suspicion Information4 Request FIGS monitoring5 Request FIGS monitoring6 FIGS Data7 FIGS DataFigure 1/M

43、.3210.1 IMT-2000 Security Management Service: Fraud Information Gathering collaboration diagrams 4 ITU-T M.3210.1 (01/2001) In Figure 1 a), The Home Network Fraud Detection System (HN-FDS) requests the Visited Network to supply certain information about a subscriber from the time the subscriber regi

44、sters in that Visited Network to the time the last of the monitored activities is finished in that Visited Network, which can be after the subscribers deregistration from the Visited Network. The information received by the Home Network shall be passed to the Home Network-FDS. Analysis of this infor

45、mation may lead to further instructions transmitted to the Visited Network to act in an appropriate way. Figure 1 b) actions are comparable to those of Figure 1 a) except that invocation of the activities is initiated by the visited service provider. 6 Management high-level requirements The Home Net

46、work-FDS or the Visited Network can take preventive actions to control and prevent fraudulent activities, according to the security policies. The security management services described in this Recommendation are applicable across different service providers operating different or similar wireless ne

47、tworks. This management service provides the Visited Network and the Home Network-FDS with the capability to exchange and to control the exchange of information related to potential fraudulent activities in the Visited Network. The Fraud Information Gathering System capabilities are categorized in T

48、able 1: Table 1/M.3210.1 Minimum capabilities required for Fraud Information Gathering System Scope Reference Requirement System-wide capabilities 1 FIGS Monitoring should be activated by: 1 The Visited Network obtains requests from the Home Network-FDS for monitoring suspicious subscriber activitie

49、s. 2 The Home Network-FDS receives unsolicited subscriber alerts from the Visited Network, especially if the roaming subscriber continues to obtain service from the Visited Network for extended periods of time. 2 FIGS should not modify the Visited Network service. 3 FIGS should not alter any standard 3G Wireless functionality seen by the customer or affect the service quality. 4 FIGS Monitoring feature applies to all subscribed Bearer Services (e.g. Circuit, IP, etc.), TeleServices and Supplementary Services of the subscriber. It is not possible