SIST-TS ETSI/TS 102 232-1 V3.29.1:2023
(Main)Lawful Interception (LI) - Handover Interface and Service-Specific Details (SSD) for IP delivery - Part 1: Handover specification for IP delivery
Lawful Interception (LI) - Handover Interface and Service-Specific Details (SSD) for IP delivery - Part 1: Handover specification for IP delivery
The present document specifies the general aspects of HI2 and HI3 interfaces for handover via IP based networks.
The present document:
• specifies the modular approach used for specifying IP based handover interfaces;
• specifies the header(s) to be added to IRI and CC sent over the HI2 and HI3 interfaces respectively;
• specifies protocols for the transfer of IRI and CC across the handover interfaces;
• specifies protocol profiles for the handover interface.
The present document is designed to be used where appropriate in conjunction with other deliverables that define the
service-specific IRI data formats (including ETSI TS 102 227 [i.1], ETSI TS 101 909-20-1 [33], ETSI
TS 101 909-20-2 [34], ETSI TS 102 232-2 [5], ETSI TS 102 232-3 [6], ETSI TS 102 232-4 [32], ETSI
TS 102 232-5 [37], ETSI TS 102 232-6 [36] and ETSI TS 102 232-7 [38]). Where possible, the present document aligns
with 3GPP TS 33.108 [9] and ETSI TS 101 671 [4] and supports the requirements and capabilities defined in ETSI
TS 101 331 [i.9] and ETSI TR 101 944 [i.4].
For the handover of intercepted data within GSM/UMTS PS and CS domains, the present document does not override
or supersede any specifications or requirements in 3GPP TS 33.108 [9] and ETSI TS 101 671 [4].
For the handover of services defined in 3GPP TS 33.128 [46], in the event of conflict between the present document
and 3GPP TS 33.128 [46], the terms of 3GPP TS 33.128 [46] apply.
Zakonito prestrezanje (LI) - Izročilni vmesnik in storitveno specifične podrobnosti (SSD) za IP-dostavo vsebin - 1. del: Izročilna specifikacija za IP-dostavo vsebin
Ta dokument določa splošne vidike vmesnikov HI2 in HI3 za izročanje prek omrežij, ki temeljijo na internetnem protokolu (IP).
Ta dokument:
• določa modularni pristop za določanje izročilnih vmesnikov na podlagi internetnega protokola;
• določa glavo oziroma glave, ki se dodajo podatkom o prestreženi komunikaciji (IRI) in vsebini komunikacije (CC), poslanim prek vmesnika HI2 oziroma HI3;
• določa protokole za prenos podatkov o prestreženi komunikaciji in vsebine komunikacije prek izročilnih vmesnikov;
• določa profile protokolov za izročilni vmesnik.
Kjer je to ustrezno, je treba ta dokument uporabljati v povezavi z drugimi dokumenti, ki določajo storitveno-specifične oblike zapisa podatkov o prestreženi komunikaciji (vključno z ETSI TS 102 227 [i.1], ETSI TS 101 909-20-1 [33], ETSI TS 101 909-20-2 [34], ETSI TS 102 232-2 [5], ETSI TS 102 232-3 [6], ETSI TS 102 232-4 [32], ETSI TS 102 232-5 [37], ETSI TS 102 232-6 [36] in ETSI TS 102 232-7 [38]). Kjer je mogoče, je ta dokument usklajen z dokumentoma 3GPP TS 33.108 [9] in ETSI TS 101 671 [4] ter podpira zahteve in zmogljivosti, opredeljene v dokumentih ETSI TS 101 331 [i.9] in ETSI TR 101 944 [i.4].
V zvezi z izročanjem prestreženih podatkov znotraj domen PS in CS v omrežju GSM/UMTS ta dokument ne razveljavlja ali nadomešča nobene specifikacije ali zahteve v dokumentih 3GPP TS 33.108 [9] in ETSI TS 101 671 [4].
V zvezi z izročanjem storitev, opredeljenih v dokumentu 3GPP TS 33.128 [46], se v primeru nasprotja med tem dokumentom in dokumentom 3GPP TS 33.128 [46] uporabljajo izrazi iz dokumenta 3GPP TS 33.128 [46].
General Information
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Standards Content (Sample)
ETSI TS 102 232-1 V3.29.1 (2023-03)
TECHNICAL SPECIFICATION
Lawful Interception (LI);
Handover Interface and
Service-Specific Details (SSD) for IP delivery;
Part 1: Handover specification for IP delivery
---------------------- Page: 1 ----------------------
2 ETSI TS 102 232-1 V3.29.1 (2023-03)
Reference
RTS/LI-00236-1
Keywords
handover, IP, lawful interception, security
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° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871
Important notice
The present document can be downloaded from:
https://www.etsi.org/standards-search
The present document may be made available in electronic versions and/or in print. The content 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 prevailing version of an ETSI
deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
https://portal.etsi.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
If you find a security vulnerability in the present document, please report it through our
Coordinated Vulnerability Disclosure Program:
https://www.etsi.org/standards/coordinated-vulnerability-disclosure
Notice of disclaimer & limitation of liability
The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of
experience to understand and interpret its content in accordance with generally accepted engineering or
other professional standard and applicable regulations.
No recommendation as to products and services or vendors is made or should be implied.
No representation or warranty is made that this deliverable is technically accurate or sufficient or conforms to any law
anty is made of merchantability or fitness
and/or governmental rule and/or regulation and further, no representation or warr
for any particular purpose or against infringement of intellectual property rights.
In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.
Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not
limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property
rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages
for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use
of or inability to use the software.
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, 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.
© ETSI 2023.
All rights reserved.
ETSI
---------------------- Page: 2 ----------------------
3 ETSI TS 102 232-1 V3.29.1 (2023-03)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 6
Introduction . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 10
3 Definition of terms, symbols and abbreviations . 11
3.1 Terms . 11
3.2 Symbols . 11
3.3 Abbreviations . 11
4 General . 13
4.1 Functionality . 13
4.2 Intercepted data types . 13
4.2.1 Introduction. 13
4.2.2 Interception at network operator or access provider . 14
4.2.3 Interception at service providers . 14
4.3 Relationship to other standards . 14
4.4 Handover for GPRS/UMTS/EPS and 3GPP CS Domains . 16
4.4.1 PS Access . 16
4.4.2 Applications . 16
4.4.3 3GPP CS domain . 16
4.5 Common parameters. 16
4.6 Handover for services defined in 3GPP TS 33.128 . 16
5 Headers . 16
5.1 General . 16
5.2 Description and purpose of the header fields . 17
5.2.1 Version . 17
5.2.2 LIID . 17
5.2.3 Authorization country code. 17
5.2.4 Communication identifier . 17
5.2.5 Sequence number . 18
5.2.6 Payload timestamp . 19
5.2.7 Payload direction . 19
5.2.8 Payload type. 19
5.2.9 Interception type . 19
5.2.10 IRI type . 20
5.2.11 Interception Point Identifier . 20
5.2.12 Session direction . 20
5.2.13 Extended Interception Point Identifier . 20
5.2.14 Network Function Identifier . 20
5.3 Encoding of header fields . 20
6 Data exchange . 21
6.1 Overview . 21
6.2 Handover layer . 21
6.2.1 General . 21
6.2.2 Error reporting . 22
6.2.3 Aggregation of payloads . 23
6.2.4 Sending a large block of application-level data . 23
6.2.5 Padding data. 23
6.2.6 Payload encryption . 24
ETSI
---------------------- Page: 3 ----------------------
4 ETSI TS 102 232-1 V3.29.1 (2023-03)
6.3 Session layer . 24
6.3.1 General . 24
6.3.2 Opening and closing connections . 24
6.3.3 Buffering . 25
6.3.4 Keep-alives . 25
6.3.5 Option negotiation . 26
6.3.5.1 Introduction . 26
6.3.5.2 Option negotiation message exchange . 26
6.3.6 PDU acknowledgement . 27
6.4 Transport layer . 28
6.4.1 Overview . 28
6.4.2 TCP settings . 28
6.4.3 Acknowledging data . 28
6.5 Network layer . 28
7 Delivery networks . 29
7.1 Types of network . 29
7.1.1 General . 29
7.1.2 Private networks . 29
7.1.3 Public networks with strict control . 29
7.1.4 Public networks with loose control . 29
7.2 Security requirements . 29
7.2.1 General . 29
7.2.2 Confidentiality and authentication . 30
7.2.3 Integrity . 30
7.3 Further delivery requirements . 30
7.3.1 Test data . 30
7.3.2 Timeliness . 30
Annex A (normative): ASN.1 syntax trees . 31
A.1 ASN.1 syntax tree for HI2 and HI3 headers. 31
A.2 ASN.1 specification. 32
A.3 Importing parameters from other standards . 32
Annex B (informative): Recommendation . 33
Annex C (informative): Notes on TCP tuning. 34
C.1 Implement IETF RFC 5681 . 34
C.2 Minimize roundtrip times . 34
C.3 Enable maximum segment size option . 34
C.4 Path MTU discovery . 34
C.5 Selective acknowledgement . 34
C.6 High speed options . 34
C.7 PUSH flag . 35
C.8 Nagle's algorithm . 35
C.9 Buffer size . 35
Annex D (informative): IRI-only interception . 36
D.1 Overview . 36
D.2 Definition HI information . 36
D.3 IRI deriving . 36
D.4 IRI by post and pre-processing HI3 information . 37
ETSI
---------------------- Page: 4 ----------------------
5 ETSI TS 102 232-1 V3.29.1 (2023-03)
Annex E (informative): Purpose of profiles . 38
E.0 Background . 38
E.1 Formal definitions . 38
E.2 Purpose of profiles . 38
Annex F (informative): Traffic management of the handover interface . 40
F.0 Rationale . 40
F.1 Factors to consider . 40
F.1.0 Background . 40
F.1.1 Burstiness . 40
F.1.2 Mixed content . 40
F.1.3 Network facilities for traffic management . 41
F.1.4 Evidentiary considerations . 41
F.1.5 National considerations . 41
F.2 Traffic management strategies . 41
F.3 Bandwidth estimation . 42
F.4 National considerations . 42
F.5 Implementation considerations . 42
F.5.1 Volatile versus non-volatile storage . 42
F.5.2 Maximum buffering time . 43
F.5.3 Transmission order of buffered data . 43
F.5.4 Buffer overflow processing . 43
Annex G (normative): Implementation of payload encryption . 44
Annex H (informative): ETSI TS 102 232 family relationship . 45
Annex I (informative): Option negotiation . 48
I.0 Summary . 48
I.1 Example use cases . 48
I.1.1 Option negotiation not supported in LGW . 48
I.1.2 Simple negotiation by both endpoints . 49
I.1.3 Simple DF-only option request . 50
I.1.4 Simple LGW-only option request . 51
I.1.5 Complex negotiation . 52
Annex J (normative): Implementation of Integrity Checks . 53
J.1 Definitions . 53
J.2 Process description . 53
J.3 Example integrity Chain . 54
Annex K (informative): Change request history . 56
History . 61
ETSI
---------------------- Page: 5 ----------------------
6 ETSI TS 102 232-1 V3.29.1 (2023-03)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations
pertaining to these essential IPRs, if any, are 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 Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,
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.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its
Members. 3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and of the 3GPP
Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of the
®
oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Lawful Interception (LI).
The present document is part 1 of a multi-part deliverable covering the Handover Interface and Service-Specific Details
(SSD) for IP delivery, as identified below:
Part 1: "Handover specification for IP delivery";
Part 2: "Service-specific details for messaging services";
Part 3: "Service-specific details for internet access services";
Part 4: "Service-specific details for Layer 2 services";
Part 5: "Service-specific details for IP Multimedia services";
Part 6: "Service-specific details for PSTN/ISDN services";
Part 7: "Service-specific details for Mobile Services".
The ASN.1 module is available as an electronic attachment to the present document (see clause A.2 for more details).
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.
ETSI
---------------------- Page: 6 ----------------------
7 ETSI TS 102 232-1 V3.29.1 (2023-03)
Introduction
The objective of the present document is to form the basis for a standardized handover interface for use by both
telecommunications service providers and network operators, including Internet Service Providers that will deliver the
interception information required by Law Enforcement Authorities under various European treaties and national
regulations.
The present document describes how to handover intercepted information via IP-based networks from a CSP to an
LEMF. The present document covers the transportation of traffic, but does not specify functionality within CSPs or
LEMF (see clause 4.1). The present document handles the transportation of intercepted Content of Communication
(CC), Intercept-Related Information (IRI), Transport Related Information (TRI) and HI1 notification information. The
tasking and management of Lawful Interception via the HI1 interface is outside the scope of the present document.
The present document is intended to be general enough to be used in a variety of situations: it is not focused on a
particular IP-based service. The present document therefore provides information that is
...
SLOVENSKI STANDARD
SIST-TS ETSI/TS 102 232-1 V3.29.1:2023
01-julij-2023
Zakonito prestrezanje (LI) - Izročilni vmesnik in storitveno specifične podrobnosti
(SSD) za IP-dostavo vsebin - 1. del: Izročilna specifikacija za IP-dostavo vsebin
Lawful Interception (LI) - Handover Interface and Service-Specific Details (SSD) for IP
delivery - Part 1: Handover specification for IP delivery
Ta slovenski standard je istoveten z: ETSI TS 102 232-1 V3.29.1 (2023-03)
ICS:
35.240.95 Spletne uporabniške rešitve Internet applications
SIST-TS ETSI/TS 102 232-1 V3.29.1:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST-TS ETSI/TS 102 232-1 V3.29.1:2023
---------------------- Page: 2 ----------------------
SIST-TS ETSI/TS 102 232-1 V3.29.1:2023
ETSI TS 102 232-1 V3.29.1 (2023-03)
TECHNICAL SPECIFICATION
Lawful Interception (LI);
Handover Interface and
Service-Specific Details (SSD) for IP delivery;
Part 1: Handover specification for IP delivery
---------------------- Page: 3 ----------------------
SIST-TS ETSI/TS 102 232-1 V3.29.1:2023
2 ETSI TS 102 232-1 V3.29.1 (2023-03)
Reference
RTS/LI-00236-1
Keywords
handover, IP, lawful interception, security
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° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871
Important notice
The present document can be downloaded from:
https://www.etsi.org/standards-search
The present document may be made available in electronic versions and/or in print. The content 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 prevailing version of an ETSI
deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
https://portal.etsi.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
If you find a security vulnerability in the present document, please report it through our
Coordinated Vulnerability Disclosure Program:
https://www.etsi.org/standards/coordinated-vulnerability-disclosure
Notice of disclaimer & limitation of liability
The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of
experience to understand and interpret its content in accordance with generally accepted engineering or
other professional standard and applicable regulations.
No recommendation as to products and services or vendors is made or should be implied.
No representation or warranty is made that this deliverable is technically accurate or sufficient or conforms to any law
anty is made of merchantability or fitness
and/or governmental rule and/or regulation and further, no representation or warr
for any particular purpose or against infringement of intellectual property rights.
In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.
Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not
limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property
rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages
for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use
of or inability to use the software.
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, 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.
© ETSI 2023.
All rights reserved.
ETSI
---------------------- Page: 4 ----------------------
SIST-TS ETSI/TS 102 232-1 V3.29.1:2023
3 ETSI TS 102 232-1 V3.29.1 (2023-03)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 6
Introduction . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 10
3 Definition of terms, symbols and abbreviations . 11
3.1 Terms . 11
3.2 Symbols . 11
3.3 Abbreviations . 11
4 General . 13
4.1 Functionality . 13
4.2 Intercepted data types . 13
4.2.1 Introduction. 13
4.2.2 Interception at network operator or access provider . 14
4.2.3 Interception at service providers . 14
4.3 Relationship to other standards . 14
4.4 Handover for GPRS/UMTS/EPS and 3GPP CS Domains . 16
4.4.1 PS Access . 16
4.4.2 Applications . 16
4.4.3 3GPP CS domain . 16
4.5 Common parameters. 16
4.6 Handover for services defined in 3GPP TS 33.128 . 16
5 Headers . 16
5.1 General . 16
5.2 Description and purpose of the header fields . 17
5.2.1 Version . 17
5.2.2 LIID . 17
5.2.3 Authorization country code. 17
5.2.4 Communication identifier . 17
5.2.5 Sequence number . 18
5.2.6 Payload timestamp . 19
5.2.7 Payload direction . 19
5.2.8 Payload type. 19
5.2.9 Interception type . 19
5.2.10 IRI type . 20
5.2.11 Interception Point Identifier . 20
5.2.12 Session direction . 20
5.2.13 Extended Interception Point Identifier . 20
5.2.14 Network Function Identifier . 20
5.3 Encoding of header fields . 20
6 Data exchange . 21
6.1 Overview . 21
6.2 Handover layer . 21
6.2.1 General . 21
6.2.2 Error reporting . 22
6.2.3 Aggregation of payloads . 23
6.2.4 Sending a large block of application-level data . 23
6.2.5 Padding data. 23
6.2.6 Payload encryption . 24
ETSI
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SIST-TS ETSI/TS 102 232-1 V3.29.1:2023
4 ETSI TS 102 232-1 V3.29.1 (2023-03)
6.3 Session layer . 24
6.3.1 General . 24
6.3.2 Opening and closing connections . 24
6.3.3 Buffering . 25
6.3.4 Keep-alives . 25
6.3.5 Option negotiation . 26
6.3.5.1 Introduction . 26
6.3.5.2 Option negotiation message exchange . 26
6.3.6 PDU acknowledgement . 27
6.4 Transport layer . 28
6.4.1 Overview . 28
6.4.2 TCP settings . 28
6.4.3 Acknowledging data . 28
6.5 Network layer . 28
7 Delivery networks . 29
7.1 Types of network . 29
7.1.1 General . 29
7.1.2 Private networks . 29
7.1.3 Public networks with strict control . 29
7.1.4 Public networks with loose control . 29
7.2 Security requirements . 29
7.2.1 General . 29
7.2.2 Confidentiality and authentication . 30
7.2.3 Integrity . 30
7.3 Further delivery requirements . 30
7.3.1 Test data . 30
7.3.2 Timeliness . 30
Annex A (normative): ASN.1 syntax trees . 31
A.1 ASN.1 syntax tree for HI2 and HI3 headers. 31
A.2 ASN.1 specification. 32
A.3 Importing parameters from other standards . 32
Annex B (informative): Recommendation . 33
Annex C (informative): Notes on TCP tuning. 34
C.1 Implement IETF RFC 5681 . 34
C.2 Minimize roundtrip times . 34
C.3 Enable maximum segment size option . 34
C.4 Path MTU discovery . 34
C.5 Selective acknowledgement . 34
C.6 High speed options . 34
C.7 PUSH flag . 35
C.8 Nagle's algorithm . 35
C.9 Buffer size . 35
Annex D (informative): IRI-only interception . 36
D.1 Overview . 36
D.2 Definition HI information . 36
D.3 IRI deriving . 36
D.4 IRI by post and pre-processing HI3 information . 37
ETSI
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SIST-TS ETSI/TS 102 232-1 V3.29.1:2023
5 ETSI TS 102 232-1 V3.29.1 (2023-03)
Annex E (informative): Purpose of profiles . 38
E.0 Background . 38
E.1 Formal definitions . 38
E.2 Purpose of profiles . 38
Annex F (informative): Traffic management of the handover interface . 40
F.0 Rationale . 40
F.1 Factors to consider . 40
F.1.0 Background . 40
F.1.1 Burstiness . 40
F.1.2 Mixed content . 40
F.1.3 Network facilities for traffic management . 41
F.1.4 Evidentiary considerations . 41
F.1.5 National considerations . 41
F.2 Traffic management strategies . 41
F.3 Bandwidth estimation . 42
F.4 National considerations . 42
F.5 Implementation considerations . 42
F.5.1 Volatile versus non-volatile storage . 42
F.5.2 Maximum buffering time . 43
F.5.3 Transmission order of buffered data . 43
F.5.4 Buffer overflow processing . 43
Annex G (normative): Implementation of payload encryption . 44
Annex H (informative): ETSI TS 102 232 family relationship . 45
Annex I (informative): Option negotiation . 48
I.0 Summary . 48
I.1 Example use cases . 48
I.1.1 Option negotiation not supported in LGW . 48
I.1.2 Simple negotiation by both endpoints . 49
I.1.3 Simple DF-only option request . 50
I.1.4 Simple LGW-only option request . 51
I.1.5 Complex negotiation . 52
Annex J (normative): Implementation of Integrity Checks . 53
J.1 Definitions . 53
J.2 Process description . 53
J.3 Example integrity Chain . 54
Annex K (informative): Change request history . 56
History . 61
ETSI
---------------------- Page: 7 ----------------------
SIST-TS ETSI/TS 102 232-1 V3.29.1:2023
6 ETSI TS 102 232-1 V3.29.1 (2023-03)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations
pertaining to these essential IPRs, if any, are 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 Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,
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.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its
Members. 3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and of the 3GPP
Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of the
®
oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Lawful Interception (LI).
The present document is part 1 of a multi-part deliverable covering the Handover Interface and Service-Specific Details
(SSD) for IP delivery, as identified below:
Part 1: "Handover specification for IP delivery";
Part 2: "Service-specific details for messaging services";
Part 3: "Service-specific details for internet access services";
Part 4: "Service-specific details for Layer 2 services";
Part 5: "Service-specific details for IP Multimedia services";
Part 6: "Service-specific details for PSTN/ISDN services";
Part 7: "Service-specific details for Mobile Services".
The ASN.1 module is available as an electronic attachment to the present document (see clause A.2 for more details).
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.
ETSI
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SIST-TS ETSI/TS 102 232-1 V3.29.1:2023
7 ETSI TS 102 232-1 V3.29.1 (2023-03)
Introduction
The objective of the
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