ETSI TS 103 921-1 V1.1.1 (2025-04)

Core Network and Interoperability Testing (INT); 5G NAS Conformance Testing for the N1 interface; (3GPPTM Release 16); Part 1: Protocol Implementation Conformance Statement (PICS)

DTS/INT-00200

General Information

• Status: Not Published
• Technical Committee: INT - Core Network and Interoperability Testing
• Current Stage: 12 - Citation in the OJ (auto-insert)
• Due Date: 23-Apr-2025
• Completion Date: 11-Apr-2025

Standards Content (Sample)

TECHNICAL SPECIFICATION
Core Network and Interoperability Testing (INT);
5G NAS Conformance Testing for the N1 interface;
(3GPP™ Release 16);
Part 1: Protocol Implementation
Conformance Statement (PICS)
2 ETSI TS 103 921-1 V1.1.1 (2025-04)

Reference
DTS/INT-00200
Keywords
conformance, PICS
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

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 the
ETSI Search & Browse Standards application.
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 on ETSI deliver repository.
Users should be aware that the present document may be revised or have its status changed,
this information is available in the Milestones listing.
If you find errors in the present document, please send your comments to
the relevant service listed under Committee Support Staff.
If you find a security vulnerability in the present document, please report it through our
Coordinated Vulnerability Disclosure (CVD) program.
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
and/or governmental rule and/or regulation and further, no representation or warranty is made of merchantability or fitness
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 2025.
All rights reserved.
ETSI
3 ETSI TS 103 921-1 V1.1.1 (2025-04)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 4
Introduction . 4
1 Scope . 5
2 References . 5
2.1 Normative references . 5
2.2 Informative references . 5
3 Definition of terms, symbols and abbreviations . 6
3.1 Terms . 6
3.2 Symbols . 6
3.3 Abbreviations . 6
4 Conformance . 6
Annex A (normative): PICS pro forma . 7
A.1 The right to copy . 7
A.2 Guidance for completing the ICS pro forma . 7
A.2.1 Purposes and structure . 7
A.2.2 Abbreviations and conventions . 7
A.2.3 Instructions for completing the PICS pro forma. 8
A.3 Identification of the Network Equipment . 9
A.3.1 Introduction . 9
A.3.2 Date of the statement . 9
A.3.3 Network Equipment Under Test identification. 9
A.3.4 Product supplier . 9
A.3.5 Client . 10
A.3.6 PICS contact person . 10
A.4 Identification of the protocol . 11
A.5 Global statement of conformance . 11
A.6 PICS pro forma tables for the N1 interface . 11
A.6.1 Roles . 11
A.6.2 PICS Items for AMF . 12
A.6.2.1 Sublayer states in the AMF . 12
A.6.2.2 5G mobility management procedures . 12
A.6.2.3 5G session management procedures . 14
A.6.2.4 Procedures for handling of unknown, unforeseen, and erroneous protocol data . 14
History . 16

ETSI
4 ETSI TS 103 921-1 V1.1.1 (2025-04)
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 IPR online database.
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™, LTE™ and 5G™ logo 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 Core Network and Interoperability
Testing (INT).
The present document is part 1 of a multi-part deliverable covering the test specifications for the 5G NAS Conformance
Testing for the N1 interface, as identified below:
Part 1: "Protocol Implementation Conformance Statement (PICS)";
Part 2: "Test Suite Structure (TSS) and Test Purposes (TP)";
Part 3: "Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)
pro forma specification".
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.
Introduction
To evaluate protocol conformance of a particular implementation, it is necessary to have a statement of which
capabilities and options have been implemented for a telecommunication specification. Such a statement is called a
Protocol Implementation Conformance Statement (PICS).
ETSI
5 ETSI TS 103 921-1 V1.1.1 (2025-04)
1 Scope
The present document provides the Protocol Implementation Conformance Statement (PICS) pro forma for the test
specification for the 5G NAS protocol on the N1 interface as specified in ETSI TS 124 501 [1] in compliance with the
relevant requirements and in accordance with the relevant guidance given in ISO/IEC 9646-7 [2] and ETSI
ETS 300 406 [i.2].
The supplier of a protocol implementation which is claimed to conform to ETSI TS 124 501 [1] is required to complete
a copy of the PICS pro forma provided in annex A of the present document and is required to provide the information
necessary to identify both the supplier and the implementation.
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found in the
ETSI docbox.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI TS 124 501 (V16.14.0): "5G; Non-Access-Stratum (NAS) protocol for 5G System (5GS);
Stage 3 (3GPP TS 24.501 version 16.14.0 Release 16)".
[2] ISO/IEC 9646-7: "Information technology — Open Systems Interconnection — Conformance
testing methodology and framework — Part 7: Implementation Conformance Statements".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] I
...