ETSI TS 125 450 V17.0.0 (2022-04)

Universal Mobile Telecommunications System (UMTS); UTRAN Iupc interface general aspects and principles (3GPP TS 25.450 version 17.0.0 Release 17)

RTS/TSGR-0325450vh00

General Information

• Status: Not Published
• Technical Committee: 3GPP RAN 3 - lub specification, lur specification, lu specification and UTRAN & O&M
• Current Stage: 12 - Completion
• Completion Date: 29-Apr-2022

Standards Content (Sample)

ETSI TS 125 450 V17.0.0 (2022-04)






TECHNICAL SPECIFICATION
Universal Mobile Telecommunications System (UMTS);
UTRAN Iupc interface general aspects and principles
(3GPP TS 25.450 version 17.0.0 Release 17)

---------------------- Page: 1 ----------------------
3GPP TS 25.450 version 17.0.0 Release 17 1 ETSI TS 125 450 V17.0.0 (2022-04)

Reference
RTS/TSGR-0325450vh00
Keywords
UMTS
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:
http://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
rule and/or regulation and further, no representation or warranty is made of merchantability or fitness
and/or governmental
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 2022.
All rights reserved.

ETSI

---------------------- Page: 2 ----------------------
3GPP TS 25.450 version 17.0.0 Release 17 2 ETSI TS 125 450 V17.0.0 (2022-04)
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 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.
Legal Notice
This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
The present document may refer to technical specifications or reports using their 3GPP identities. These shall be
interpreted as being references to the corresponding ETSI deliverables.
The cross reference between 3GPP and ETSI identities can be found under http://webapp.etsi.org/key/queryform.asp.
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: 3 ----------------------
3GPP TS 25.450 version 17.0.0 Release 17 3 ETSI TS 125 450 V17.0.0 (2022-04)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 4
1 Scope . 5
2 References . 5
3 Definitions and abbreviations . 5
3.1 Definitions . 5
3.2 Abbreviations . 6
3.3 Specification Notations . 6
4 General Aspects . 7
4.1 Introduction . 7
4.2 Iupc Interface General Principles . 7
4.3 Iupc Interface Specification Objectives . 8
4.4 Iupc Interface Capabilities . 8
4.4.1 General . 8
4.4.2 Position Calculation Services . 8
4.4.3 Information Exchange Services . 8
4.4.4 SAS Centric Position Services . 8
4.5 Iupc Interface Characteristics . 8
4.5.1 Uses of SCCP . 8
4.5.1.1 General . 8
4.5.1.2 SCCP Addressing . 8
4.5.1.3 SCCP connection establishment. 9
4.5.1.4 SCCP connection release . 9
4.5.1.5 General SCCP Abnormal Conditions . 10
5 Functions of the Iupc Interface Protocols . 10
5.1 List of Functions . 10
5.2 Management of GPS Related Data . 10
5.3 Management of Position Calculation Functions . 10
5.4 Management of SAS Centric Position Functions . 10
5.5 Management of GANSS Related Data . 11
6 Other Iupc Interface Specifications . 11
6.1 UTRAN Iupc Interface: Layer 1 (TSG RAN 25.451) . 11
6.2 UTRAN Iupc Interface: Signalling Transport (TSG RAN 25.452) . 11
6.3 PCAP Specification (TSG RAN 25.453) . 11
6.4 Summary of UTRAN Iupc Interface Technical Specifications . 11
Annex A (informative): Change history . 12
History . 13

ETSI

---------------------- Page: 4 ----------------------
3GPP TS 25.450 version 17.0.0 Release 17 4 ETSI TS 125 450 V17.0.0 (2022-04)
Foreword
rd
This Technical Specification has been produced by the 3 Generation Partnership Project (3GPP).
The contents of the present document are subject to continuing work within the TSG and may change following formal
TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an
identifying change of release date and an increase in version number as follows:
Version x.y.z
where:
x the first digit:
1 presented to TSG for information;
2 presented to TSG for approval;
3 or greater indicates TSG approved document under change control.
y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections,
updates, etc.
z the third digit is incremented when editorial only changes have been incorporated in the document.
ETSI

---------------------- Page: 5 ----------------------
3GPP TS 25.450 version 17.0.0 Release 17 5 ETSI TS 125 450 V17.0.0 (2022-04)
1 Scope
The present document is an introduction to the TSG RAN TS 25.45z series of UMTS Technical Specifications that
define the Iupc Interface. The Iupc interface is a logical interface for the interconnection of Stand-Alone SMLC (SAS)
and Radio Network Controller (RNC) components of the Universal Terrestrial Radio Access Network (UTRAN) for the
UMTS system.
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, edition number, version number, etc.) or
non-specific.
● For a specific reference, subsequent revisions do not apply.
● For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including
a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same
Release as the present document.
[1] Void
[2] 3GPP TS 25.451: "UTRAN Iupc Interface: Layer 1".
[3] 3GPP TS 25.452: "UTRAN Iupc Interface: Signalling Transport".
[4] 3GPP TS 25.453: "UTRAN Iupc Interface PCAP Signalling".
[5] ITU-T Recommendation Q.711 (1996-07): "Functional description of the signalling connection
control part".
[6] ITU-T Recommendation Q.712 (1996-07): "Definition and function of signalling connection
control part messages".
[7] ITU-T Recommendation Q.713 (1996-07): "Signalling connection control part formats and codes".
[8] ITU-T Recommendation Q.714 (1996-07): "Signalling connection control part procedures".
[9] 3GPP TS 23.003: "Numbering, Addressing and Identification".
[10] Void
[11] 3GPP TS 25.305: "Stage 2 functional specification of UE positioning in UTRAN"
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
Stand-Alone SMLC (SAS): As defined in TS 25.305 [11].
RNC Centric: In this mode of operation (defined in TS 25.305 [11]), the RNC is responsible for position method
selection and initiation of the selected positioning method. Once a position method is selected, the RNC may interact
with the SAS to exchange data as
...