ETSI TR 122 936 V15.0.0 (2018-07)

Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Multi-system terminals (3GPP TR 22.936 version 15.0.0 Release 15)

ETSI TR 122 936 V15.0.0 (2018-07)

Name:ETSI TR 122 936 V15.0.0 (2018-07)   Standard name:Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Multi-system terminals (3GPP TR 22.936 version 15.0.0 Release 15)
Standard number:ETSI TR 122 936 V15.0.0 (2018-07)   language:English language
Release Date:11-Jul-2018   technical committee:3GPP SA 1 - Services
Drafting committee:   ICS number:
ETSI TR 122 936 V15.0.0 (2018-07)






TECHNICAL REPORT
Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS);
LTE;
Multi-system terminals
(3GPP TR 22.936 version 15.0.0 Release 15)

---------------------- Page: 1 ----------------------
3GPP TR 22.936 version 15.0.0 Release 15 1 ETSI TR 122 936 V15.0.0 (2018-07)



Reference
RTR/TSGS-0122936vf00
Keywords
GSM,LTE,UMTS
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 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
The present document can be downloaded from:

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 only prevailing document is the
print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat.
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

If you find errors in the present document, please send your comment to one of the following services:

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 2018.
All rights reserved.

TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.
TM TM
3GPP and LTE are trademarks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
oneM2M logo is protected for the benefit of its Members.

GSM and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI

---------------------- Page: 2 ----------------------
3GPP TR 22.936 version 15.0.0 Release 15 2 ETSI TR 122 936 V15.0.0 (2018-07)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables 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.
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.
Foreword
This Technical Report (TR) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or
GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables.
The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under
.
Modal verbs terminology
In the present document "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 TR 22.936 version 15.0.0 Release 15 3 ETSI TR 122 936 V15.0.0 (2018-07)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 4
Introduction . 4
1 Scope . 5
2 References . 5
3 Definitions and abbreviations . 5
3.1 Definitions . 5
3.2 Abbreviations . 5
4 Categories of multi system terminals . 6
4.1 Common characteristics . 6
4.2 Category 1 - Manual switching . 6
4.3 Category 2 - Automatic switching by an overlay function . 6
4.4 Category 3 - Selection method of one system to extended to another . 6
4.4.1 Example A, extended PLMN list . 6
4.4.2 Example B, extended PRL . 6
4.5 Category 4 – Multiple systems operational simultaneously . 6
5 Use cases . 7
5.1 Roaming cases . 7
5.2 Non-roaming cases . 7
6 Considerations for multi system terminals . 7
6.1 General categorization of usage . 7
6.2 Subscription aspects . 7
6.3 MMI aspects . 8
6.4 Charging aspects . 8
6.5 Security aspects . 8
6.6 Target time to select system . 8
6.7 System preference settings . 8
6.8 System selection . 9
6.8.1 Overview . 9
6.8.2 Switch-on or recovery from lack of coverage . 9
6.8.3 User reselection . 9
6.8.4 System switching . 9
7 Conclusion . 9
7.1 Overview . 9
7.2 General requirements for system selection . 10
Annex A: Change history . 11
History . 12

ETSI

---------------------- Page: 4 ----------------------
3GPP TR 22.936 version 15.0.0 Release 15 4 ETSI TR 122 936 V15.0.0 (2018-07)
Foreword
rd
This Technical Report 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.
Introduction
In the past, operators within a country or a region deployed single system networks and, consequently, users got service
from a single system terminal. Multi mode terminals were sometimes deployed to maximise coverage, particularly
during times of transition between radio access technologies (e.g. cdma/AMPS), but the same core network was always
used.
In the future it is likely that operators will operate more than one system and the core networks will be different. This
may happen either through choice or company merger/acquisition. There will be cases where operators have different
systems in the same geographic area and cases where operators use different systems in different regions. It is also
likely that there will be roaming agreements between operators of different systems. Therefore, the market for multi
system terminals will increase and consideration is needed in 3GPP if new standardisation will be required or not.
Leaving system selection unspecified could lead to differences between vendor implementations. Whereas this may in
itself not be a problem, it needs to be ensured that 3GPP specifications are followed by multi system terminals with
3GPP capability and that no harm to 3GPP networks is caused.
ETSI

---------------------- Page: 5 ----------------------
3GPP TR 22.936 version 15.0.0 Release 15 5 ETSI TR 122 936 V15.0.0 (2018-07)
1 Scope
The present document studies the behaviour of a multi system terminal that supports both 3GPP and non-3GPP systems.
Particular issues handled include, but are not restricted to:
• Whether the system selection or PLMN selection should take higher priority in a multi system terminal.
• Criteria for system change.
• Interaction between the user's and the operator's preferences.
• Support of automatic and manual system selection mode.
• Different methods of system selection and their impact on 3GPP specifications.
• Some areas for possible standardization, to ensure 3GPP compliance and protection of 3GPP networks.
The present document treats non-3GPP networks in a generic way but it applies mainly to the case of 3GPP2/3GPP
compliant terminals.
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] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications".
[2] 3GPP TS 22.011: "Service accessibility".
3 Definitions and abbreviations
3.1 Definitions
Multi mode terminal: Terminal which supports multiple access technologies and accesses 3GPP core network (e.g.
GSM/UMTS).
Multi system terminal: Terminal which supports both the 3GPP system and non-3GPP system(s).
Non-3GPP system: Mobile telecommunications system, having non-MAP core network, with specifications which are
outside the control or influence of 3GPP.
3GPP system: MAP core network and various access networks.
3GPP2 system: IS-41 core network and various cdma access network .
Other definitions are given in 3GPP TR 21.905 [1].
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
PRL Preferred Roaming List
GAIT GSM/ANSI-136 Interoperability
R-UIM Removable User Interface Module (a 3GPP2 abbreviation)

ETSI

---------------------- Page: 6 --------------------
...

  • Relates Information
  • ISO 8130-9:1992

    ISO 8130-9:1992 - Coating powders
    09-28
  • EN 352-2:2020/FprA1

    EN 352-2:2021/oprA1:2023
    09-28
  • IEC TS 61158-4:1999

    IEC TS 61158-4:1999 - Digital data communications for measurement and control - Fieldbus for use in industrial control systems - Part 4: Data Link protocol specification Released:3/24/1999 Isbn:2831847656
    09-28
  • HD 566 S1:1990

    HD 566 S1:1998
    09-28
  • ISO 5131:1982/Amd 1:1992

    ISO 5131:1982/Amd 1:1992
    09-28
  • EN 60598-2-22:1990

    EN 60598-2-22:1996
    09-27
  • ISO 8504-2:1992

    ISO 8504-2:1992 - Preparation of steel substrates before application of paints and related products -- Surface preparation methods
    09-27
  • EN 12165:2024

    prEN 12165:2022
    09-27
  • IEC TS 61158-6:1999

    IEC TS 61158-6:1999 - Digital data communications for measurement and control - Fieldbus for use in industrial control systems - Part 6: Application Layer protocol specification Released:3/24/1999 Isbn:2831847613
    09-27
  • ISO 4252:1992

    ISO 4252:1992 - Agricultural tractors -- Operator's workplace, access and exit -- Dimensions
    09-27