1、 ETSI EN 301 040 V2.1.1 (2006-03)European Standard (Telecommunications series) Terrestrial Trunked Radio (TETRA);Security;Lawful Interception (LI) interfacefloppy3 ETSI ETSI EN 301 040 V2.1.1 (2006-03) 2 Reference REN/TETRA-06132 Keywords data, security, TETRA, voice ETSI 650 Route des Lucioles F-06
2、921 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 Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of the present document can be downloaded from: http:/www.ets
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5、etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the fore
6、going restriction extend to reproduction in all media. European Telecommunications Standards Institute 2006. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTMand the TIPHON logo are Trade Marks currently being registered b
7、y ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI EN 301 040 V2.1.1 (2006-03) 3 Contents Intellectual Property Rights5 Foreword.5 Introduction 5 1 Scope 6 2 References 7 3 Definitions and
8、 abbreviations.8 3.1 Definitions8 3.2 Abbreviations .10 4 User (LEA) requirements - the administrative interface 11 4.1 Non-disclosure .11 4.2 Identification of the identity to be intercepted11 4.3 Result of interception .12 4.3.1 Network validity of result of interception.12 4.3.2 Identification of
9、 result of interception 12 4.3.3 Format of result of interception 12 4.3.4 Content of result of interception .12 4.3.5 Auditing of interception facilities .13 4.4 Location information13 4.5 Time constraints .14 4.6 Service transparency.14 4.7 LI interface instances14 4.8 LI interface events14 5 Desc
10、ription of internal TETRA LI interface 15 5.1 Stage 1 description of TETRA LI technical interface 15 5.1.1 Description15 5.1.2 Procedures.15 5.1.2.1 Provision/withdrawal 15 5.1.2.2 Normal procedures15 5.1.2.2.1 Activation/deactivation/registration 15 5.1.2.2.2 Invocation and operation .15 5.1.2.2.3
11、Interrogation 15 5.1.3 Interaction with TETRA supplementary services .15 5.1.4 Interaction with other supplementary services15 5.2 Stage 2 description of TETRA LI technical interface 16 5.2.1 Functional model 16 5.2.2 Information flow sequences16 5.2.2.1 LEA control interactions and information flow
12、s.17 5.2.2.1.1 LI_ACTIVATE_req 17 5.2.2.1.2 LI_ACTIVATE_conf 18 5.2.2.1.3 LI_MODIFY_req 18 5.2.2.1.4 LI_MODIFY_conf 18 5.2.2.1.5 LI_STATUS_ind .19 5.2.2.2 Target signalling and traffic interactions and information flows 19 5.2.2.2.1 TARGET_ACTIVITY_MONITOR_ind.20 5.2.2.2.2 TARGET_COMMS_MONITOR_ind.2
13、0 5.2.2.2.3 T_TRAFFIC_ind .21 5.2.2.2.4 CT_TRAFFIC_ind 21 6 Data provision and encoding21 6.1 Identification of result of interception (tLIInstanceid) .21 6.2 Provision of identities.22 6.2.1 Target22 6.2.2 Co-target .22 ETSI ETSI EN 301 040 V2.1.1 (2006-03) 4 6.3 Provision of details of services us
14、ed and their associated parameters23 6.3.1 Circuit mode services (U-plane) .23 6.3.2 Data services (C-plane).23 6.3.2.1 Short data (unacknowledged)23 6.3.2.2 Short data (acknowledged)24 6.3.2.3 Specific Connectionless Network Service (SCLNS) 24 6.3.2.4 Connection Oriented Network Service (CONS) .24
15、6.3.2.5 Internet Protocol24 6.4 Provision of those signals emitted by the target invoking additional or modified services25 6.4.1 Authentication.25 6.4.2 OTAR .25 6.4.3 Enable/Disable25 6.4.4 Registration.26 6.4.5 Migration 26 6.4.6 Roaming26 6.4.7 Supplementary services 26 6.5 Provision of time-sta
16、mps for identifying the beginning, end and duration of the connection26 6.6 Provision of actual destination and intermediate directory numbers if call has been diverted.27 6.7 Provision of the U-plane content of the communication from and to the target.27 6.8 Provision of location information.27 6.8
17、.1 Mobile users of TETRA .27 6.8.2 Fixed line users of TETRA.28 Annex A (informative): Explanatory diagrams .29 A.1 General network arrangements.29 A.2 Service providers30 A.3 Service across multiple SwMIs 31 A.4 Service across international borders.32 Annex B (informative): Void .33 Annex C (inform
18、ative): Example encoding of target behaviour 34 C.1 Call setup from target to TETRA co-target34 C.2 Target registration 34 Annex D (informative): Void .36 Annex E (normative): ASN.1 Data definitions 37 Annex F (informative): Bibliography.41 History 43 ETSI ETSI EN 301 040 V2.1.1 (2006-03) 5 Intellec
19、tual Property Rights IPRs essential or potentially essential to the present document 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
20、(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 (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR s
21、earches, 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. Foreword This European Standard (Telecommunications ser
22、ies) has been produced by ETSI Technical Committee Terrestrial Trunked Radio (TETRA). The 06132v203_C01_ASN1.asn file is contained in archive en_301040v020101p0.zip which accompanies the present document. National transposition dates Date of adoption of this EN: 24 February 2006 Date of latest annou
23、ncement of this EN (doa): 31 May 2006 Date of latest publication of new National Standard or endorsement of this EN (dop/e): 30 November 2006 Date of withdrawal of any conflicting National Standard (dow): 30 November 2006 Introduction This update to the present document has been prepared to address
24、the following issues: ASN.1 definition corrections. ASN.1 provision as deliverable based module. Closer alignment to handover capabilities described in ES 201 671 8. Refinement of the Internal management interface. Renaming of internal interfaces to align with ES 201 158 9. Deletion of SDL as there
25、is no real added value in the model. Removal of hanging paragraphs from introduction of each clause (compliance with ETSI drafting rules). In addition every effort has been made to make the terminology consistent with other interception domain specifications. ETSI ETSI EN 301 040 V2.1.1 (2006-03) 6
26、1 Scope The present document describes the data content of a Lawful Interception interface in a TETRA system. It provides the requirements and specification of the interface within a TETRA system for the purpose of providing data to Law Enforcement Agencies (LEAs) in the area of Lawful Interception
27、(LI) of communications. The present document describes the internal LI interface of a TETRA network, and does not specify the means by which data is delivered to the LEA or to its designated Law Enforcement Monitoring Facility (LEMF). However the internal LI interface is defined in such a way that d
28、ata may be carried transparently on most networks. NOTE 1: In this context “internal“ means within the boundary of the TETRA infrastructure. The boundary may extend in such a manner that the TETRA LI function is remote from other components of the SwMI, or it may be co-located with other SwMI compon
29、ents. Figure 1: Model of TETRA interception The general reference model of figure 1 shows that the overall LI interface lies between the LEMF and the TETRA infrastructure (SwMI) and is composed of both the Handover Interface (described in ES 201 671 8 and/or TS 102 232 11) and the internal intercept
30、ion interface. The subject of the present document is the internal LI interface that lies between the TETRA infrastructure and the mediation function. The provision of a Lawful Interception interface for TETRA is a national option, however where it is provided it shall be provided as described in th
31、e present document. The Handover Interface may be the subject of national regulation and therefore the mediation function may be a matter of national regulation. The present document describes the data content of the information flows of the intercepted activity from the TETRA system using ASN.1 but
32、 without respect to the encoding rules which are determined by the handover interface adopted. The present document is structured as follows: clause 4 outlines the essential requirements for the TETRA LI interface; clause 5 presents the structural and behavioural models of the LI interface; clause 6
33、 presents the data model and allocation behaviour in the LI interface. The present document applies to TETRA services where access to the communication of TETRA Subscriber Identities (TSIs) is available in a network (Switching and Management Infrastructure (SwMI) or Radio Packet Data Infrastructure
34、(RPDI). Whilst this does not prohibit lawful interception of TETRA Direct Mode Operation (DMO) it removes the liability of network operators and service providers to provide a result of interception when communication does not make use of their networks. ETSI ETSI EN 301 040 V2.1.1 (2006-03) 7 The p
35、resent document describes the normal and exceptional operation in each of the three operational phases of T-LI: 1) Setup: The actions taken within the TETRA network to establish the monitoring of a target and the interception communications paths for delivery. 2) Monitoring: The monitoring of target
36、 activity and its delivery. 3) Cleardown: The removal of a monitor facility against a target and the cleardown of the interception communications paths. The present document does not describe the means of transporting data from the TETRA network to the LEA, but describes only the means of capturing
37、and encoding the activities of a target within the TETRA network and delivering this data to the mediation function. The present document does not define the operations or technical requirements of the Handover Interface that takes data from the mediation function to the Law Enforcement Monitoring F
38、acility (LEMF). The present document does not define the operations or technical requirements of the LEMF. NOTE 2: The present document presupposes some familiarity with the operation of TETRA systems and of lawful interception. NOTE 3: The present document suggests a barrier to external manipulatio
39、n of the TETRA infrastructure by means of a mediation function. 2 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 and/or edition number or ver
40、sion number) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. 1 Europea
41、n Union Council Resolution COM 96/C329/01 of 17 January 1995 on the Lawful Interception of Telecommunications. 2 ETSI TS 101 331: “Telecommunications security; Lawful Interception (LI); Requirements of Law Enforcement Agencies“. 3 ETSI EN 300 392-1: “Terrestrial Trunked Radio (TETRA); Voice plus Dat
42、a (V+D); Part 1: General network design“. 4 ETSI EN 300 392-2: “Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 2: Air Interface (AI)“. 5 ETSI EN 300 392-7: “Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 7: Security“. 6 ISO/IEC 8348: “Information technology - Open Sys
43、tems Interconnection - Network service definition“. ETSI ETSI EN 301 040 V2.1.1 (2006-03) 8 7 ISO/IEC 8878 (1992): “Information technology - Telecommunications and information exchange between systems - Use of X.25 to provide the OSI Connection-mode Network Service“. 8 ETSI ES 201 671: “Telecommunic
44、ations security; Lawful Interception (LI); Handover interface for the lawful interception of telecommunications traffic“. 9 ETSI ES 201 158: “Telecommunications security; Lawful Interception (LI); Requirements for network functions“. 10 ETSI TS 101 671: “Lawful Interception (LI); Handover interface
45、for the lawful interception of telecommunications traffic“. 11 ETSI TS 102 232: “Lawful Interception (LI); Handover specification for IP delivery“. 12 ITU-T Recommendation X.680: “Information technology - Abstract Syntax Notation One (ASN.1): Specification of basic notation“. 13 ITU-T Recommendation
46、 X.690: “Information technology - ASN.1 encoding rules: Specification of Basic Encoding Rules (BER), Canonical Encoding Rules (CER) and Distinguished Encoding Rules (DER)“. 14 ITU-R Recommendation TF-460-6: “Standard-frequency and time-signal emissions“. 3 Definitions and abbreviations 3.1 Definitio
47、ns For the purposes of the present document, the following terms and definitions apply: call: any connection (fixed or temporary) capable of transferring information between two or more users of a telecommunication system where at least one of the parties to the call (for the purposes of EN 301 040)
48、 is a user of a TETRA system content of communication: information exchanged between two or more users of a telecommunications service where at least one of the users is accessing the service in a TETRA network whilst a call is established, excluding intercept related information NOTE 1: This includ
49、es information which may, as part of some TETRA service, be stored by one user for subsequent retrieval by another. NOTE 2: The user in the above definition may be any addressable entity in the TETRA domain using either a TSI 3 or some other valid network address (undefined). Coordinated Universal Time (UTC): time scale maintained by the Bureau International de lHeure (BIH) that forms the basis of a coordinated dissemination of standard frequencies and time signals NOTE: The source of this definition is ITU-R Re
