SIST-TS ETSI/TS 102 657 V1.18.1:2018

TECHNICAL SPECIFICATION
Lawful Interception (LI);
Retained data handling;
Handover interface for the request and
delivery of retained data
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2 ETSI TS 102 657 V1.18.1 (2017-04)

Reference
RTS/LI-00141
Keywords
handover, retention
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ETSI
3 ETSI TS 102 657 V1.18.1 (2017-04)
Contents
Intellectual Property Rights . 8
Foreword . 8
Modal verbs terminology . 8
1 Scope . 9
2 References . 9
2.1 Normative references . 9
2.2 Informative references . 11
3 Definitions and abbreviations . 11
3.1 Definitions . 11
3.2 Abbreviations . 12
4 Overview of handover interface . 14
4.1 Reference model . 14
4.2 Structure of document and applicable communication domains . 15
4.3 Categories of retained data . 16
4.4 Handover Interface port 1 (HI-A) and Handover Interface port 2 (HI-B) . 16
4.5 Model used for the RDHI . 17
5 Handover interface message flows . 17
5.1 Introduction . 17
5.1.1 Summary of this clause . 17
5.1.2 Message flow modes . 17
5.1.3 Delivery cases . 18
5.1.4 "Active" requests and "closed" requests . 18
5.1.5 Errors and failure situations . 18
5.1.5.1 Error and failure types . 18
5.1.5.2 Request process failure feedback . 19
5.1.5.3 Other errors . 19
5.1.5.4 Missing messages . 19
5.1.6 Cancelling a request . 20
5.1.7 Delivery of results . 20
5.1.8 State diagram . 21
5.1.9 Supplementary Messages . 22
5.2 Message flows for general situation . 22
5.2.1 Delivery of a response . 22
5.2.2 Cancellation of request . 23
5.2.3 Multi-part delivery . 24
5.3 Message flows for Authorized-Organization-initiated scenario . 25
5.3.1 Delivery of results or a failure response . 25
5.3.2 Cancellation of request . 26
5.3.3 Multi-part delivery . 27
5.4 Message types for HI-A and HI-B . 28
5.5 HI-A and HI-B addressing. 29
6 Definition of the elements for retained data messages . 29
6.1 Header information. 29
6.1.1 Use of header information . 29
6.1.2 RequestID field specification . 29
6.1.3 CSP Identifiers . 30
6.1.3.1 Use of CSP identifiers (CSPID) . 30
6.1.3.2 Third Party CSP Identifier (thirdPartyCSPID) . 30
6.1.4 Timestamp (timeStamp) . 30
6.1.5 RequestType (requestType) . 30
6.2 Retained Data response . 30
6.2.1 General . 30
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4 ETSI TS 102 657 V1.18.1 (2017-04)
6.2.2 Additional information in response messages. 31
6.2.2.1 Record number (recordNumber) . 31
6.2.2.2 Response status (ResponseStatus) . 31
6.2.3 Volatile information . 31
6.2.4 Unavailable parameters . 31
6.3 Retained Data requests . 32
6.3.1 Information contained within a request . 32
6.3.2 Format of a request . 32
6.3.3 Additional information in requests . 33
6.3.3.1 Priority of a request . 33
6.3.3.2 Maximum hits . 33
6.3.3.3 Maximum records per batch . 33
6.3.3.4 Number of records limit . 34
6.4 Error messages . 34
7 Data exchange techniques . 34
7.1 General . 34
7.2 HTTP data exchange . 34
7.2.1 Basic configuration . 34
7.2.2 Single client/server . 35
7.2.3 Mutual client/server . 35
7.2.4 Details common to both single and mutual cases . 35
7.3 Direct TCP data exchange . 35
7.3.0 General . 35
7.3.1 Application layer . 36
7.3.2 Transport layer . 36
7.3.2.1 Introduction . 36
7.3.2.2 TCP settings . 36
7.3.3 Network layer . 36
7.3.4 Delivery networks . 36
8 Security Measures . 37
8.1 General . 37
8.2 Connection Level Security . 37
8.3 Application Level Security . 37
8.4 Technical Security Measures . 38
8.4.1 General . 38
8.4.2 Connection Level . 38
8.4.3 Application Level . 38
8.4.3.1 Hashes . 38
8.4.3.2 Digital Signatures . 38
8.4.3.3 HI-B Non-Repudiation . 38
8.4.3.4 Digital Signatures and Message Structure . 39
Annex A (normative): Data fields . 40
A.1 Summary . 40
A.1.1 Introduction to data fields . 40
A.1.2 Choice of data modelling language . 40
A.1.3 Overview . 40
A.2 Parameter definition for common fields . 41
A.2.1 RetainedDataHeader . 41
A.2.1.1 Parameters. 41
A.2.1.2 RequestID parameters . 41
A.2.2 RetainedDataPayload . 41
A.2.2.1 RequestMessage parameters . 41
A.2.2.2 RequestAcknowledgement parameters . 42
A.2.2.3 ResponseMessage parameters . 42
A.2.2.4 GetStatusMessage parameters . 42
A.2.2.5 StatusMessage parameters . 42
A.2.2.6 ErrorMessage parameters . 43
A.2.3 GenericSubscriberInfo . 43
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5 ETSI TS 102 657 V1.18.1 (2017-04)
A.2.3.1 Parameters. 43
A.2.3.2 OrganizationInfo parameters . 43
A.2.3.3 IndividualInfo parameters . 44
A.2.4 PaymentDetails . 44
A.3 ASN.1 definitions . 45
A.3.1 General . 45
A.3.1.1 ASN.1 syntax tree . 45
A.3.1.2 General remarks on ASN.1 . 45
A.3.2 ASN.1 Definitions for message headers . 46
A.3.2.1 Message wrappers . 46
A.3.2.2 Message headers . 46
A.3.3 ASN.1 definitions for common fields. 51
A.3.4 Schematic representation of top level ASN.1 . 55
Annex B (normative): Service-specific details for telephony services . 57
B.1 Scope . 57
B.2 Telephony fields . 57
B.2.1 General . 57
B.2.2 Telephony Subscriber . 57
B.2.2.0 General . 57
B.2.2.1 subscriber ID . 57
B.2.2.2 genericSubscriberInfo . 58
B.2.2.3 telephonySubscriberInfo . 58
B.2.2.4 subscribedTelephonyServices . 58
B.2.2.4.1 Description . 58
B.2.3 Telephony Billing Details . 59
B.2.3.0 General . 59
B.2.3.1 BillingRecords . 59
B.2.4 TelephonyServiceUsage . 60
B.2.4.1 Parameters. 60
B.2.4.2 PartyInformation . 60
B.2.4.3 SMSInformation . 61
B.2.4.4 MmsInformation . 61
B.2.5 TelephonyDevice. 61
B.2.5.1 General . 61
B.2.6 TelephonyNetworkElement . 62
B.2.6.1 General . 62
B.2.6.2 Location parameters . 62
B.2.6.2.1 General . 62
B.2.6.2.2 GSM Location Information . 63
B.2.6.2.3 UMTS Location Information . 64
B.2.6.2.4 Extended Location . 64
B.2.6.3 TransmitterDetails parameters . 64
B.2.6.3.1 General . 64
B.3 ASN.1 definitions for telephony . 64
B.4 Schematic view of ASN.1 definitions . 79
Annex C (normative): Service-specific details for asynchronous message services . 81
C.1 Scope . 81
C.2 Descriptions . 81
C.2.1 General . 81
C.2.2 MsgSubscriber . 82
C.2.2.0 General . 82
C.2.2.1 MsgSubscriberID . 82
C.2.2.2 MsgStore . 82
C.2.2.3 MsgStoreID. 82
C.2.2.4 MsgAddress . 82
C.2.2.5 MsgProviderID . 82
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6 ETSI TS 102 657 V1.18.1 (2017-04)
C.2.3 MsgServiceUsage . 83
C.2.3.0 General . 83
C.2.3.1 MsgTransmission . 83
C.2.3.2 MsgStoreOperation . 83
C.2.4 MsgBillingDetails parameters . 84
C.2.4.0 General . 84
C.2.4.1 MsgBillingRecords . 84
C.3 ASN.1 definitions for asynchronous message services . 84
C.4 Schematic view of ASN.1 definitions . 88
Annex D (normative): Service-specific details for synchronous multi-media services . 89
D.1 Scope . 89
D.2 Multimedia fields . 89
D.2.1 General . 89
D.2.2 Multimedia Subscriber . 89
D.2.2.0 General . 89
D.2.2.1 subscriberID . 90
D.2.2.2 genericSubscriberInfo . 90
D.2.2.3 multimediaSubscriberInfo . 90
D.2.2.4 subscribedMultimediaServices . 90
D.2.2.4.1 Description . 90
D.2.3 MultimediaBillingDetails . 91
D.2.3.1 MultimediaBillingDetails . 91
D.2.3.2 MultimediaBillingAddress . 91
D.2.3.3 MultimediaBillingRecords . 92
D.2.4 Multimedia ServiceUsage . 92
D.2.4.1 Parameters. 92
D.2.4.2 PartyInformation . 93
D.2.4.3 IMSInformation . 93
D.2.4.4 MediaComponents . 94
D.3 ASN.1 definitions for Multimedia . 94
D.4 Schematic view of ASN.1 definitions . 100
Annex E (normative): Service-specific details for network access services . 102
E.1 Scope . 102
E.2 Descriptions . 102
E.2.1 General . 102
E.2.2 NASubscriber . 102
E.2.3 NAServiceSubscription . 103
E.2.4 NAServiceUsage . 103
E.2.5 NADevice . 106
E.2.6 NANwElement . 107
E.2.7 NABillingDetails . 107
E.3 ASN.1 definitions for network access services . 107
E.4 Schematic view of ASN.1 definitions . 116
Annex F (informative): Basic set of search routines for Retained Data . 118
F.1 Example set of search routines . 118
F.1.1 Introduction . 118
F.1.2 Summary of search case . 118
F.1.3 Subscriber records . 118
F.2 Telephony data . 119
F.2.1 Telephony subscriber . 119
F.2.2 Telephony billing details . 119
F.2.3 Telephony service usage . 119
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F.2.4 Telephony network element . 119
F.3 Messaging data . 120
F.3.1 Message subscriber. 120
F.3.2 Message service usage . 120
F.4 Network Access data . 120
F.4.1 NA subscriber . 120
F.4.2 NA service usage . 121
Annex G (informative): Examples of search routines . 122
G.1 Introduction . 122
G.2 Example for telephony subscriber query in clause F.2.1 . 122
G.3 Example for telephony service usage query in clause F.2.3 . 123
Annex H (informative): Further information on data categories . 124
H.1 General . 124
H.2 Further information on subscriber data . 124
H.2.1 Subscriber data requests . 124
H.2.2 Generic subscriber data records . 124
H.2.3 Service Specific Subscriber Reply Data . 125
H.3 Further information on usage data . 125
H.3.1 Usage requests . 125
H.3.2 Usage data categories . 126
H.3.3 Usage: Traffic Data (Reply) . 126
H.3.4 Usage: Traffic Data related information (Reply) . 126
H.3.5 Usage: communication independent user activities (Reply) . 126
H.3.6 Usage: network Activity Data (Reply) . 126
H.4 Further information on network element data . 127
H.4.1 Network element requests . 127
H.4.2 Network Configuration Data Reply Data . 127
Annex I (informative): Manual techniques . 128
Annex J (informative): Single versus multi-part deliveries . 129
J.1 General . 129
J.2 Criteria for multi-part delivery . 129
J.3 Subscriptions into the future. 130
Annex K (informative): Change Request History . 131
History . 134

ETSI
8 ETSI TS 102 657 V1.18.1 (2017-04)
Intellectual 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 (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 (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
server) which are, or may be, or may become, essential to the present document.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Lawful Interception (LI).
The ASN.1 module and XML schema are also available as an electronic attachment to the original document from the
ETSI site (see details in clause A.3.1.2).
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 3.2 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.
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9 ETSI TS 102 657 V1.18.1 (2017-04)
1 Scope
The present document is based on requirements from ETSI TS 102 656 [2].
The present document contains handover requirem
...