ETSI TR 122 980 V15.0.0 (2019-07)

Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Network composition feasibility study (3GPP TR 22.980 version 15.0.0 Release 15)

RTR/TSGS-0122980vf00

General Information

• Status: Published
• Publication Date: 22-Jul-2019
• Technical Committee: 3GPP SA 1 - Services
• Current Stage: 12 - Completion
• Completion Date: 23-Jul-2019

Standards Content (Sample)

ETSI TR 122 980 V15.0.0 (2019-07)






TECHNICAL REPORT
Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS);
LTE;
Network composition feasibility study
(3GPP TR 22.980 version 15.0.0 Release 15)

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3GPP TR 22.980 version 15.0.0 Release 15 1 ETSI TR 122 980 V15.0.0 (2019-07)



Reference
RTR/TSGS-0122980vf00
Keywords
GSM,LTE,UMTS
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3GPP TR 22.980 version 15.0.0 Release 15 2 ETSI TR 122 980 V15.0.0 (2019-07)
Intellectual Property Rights
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Legal Notice
This Technical Report (TR) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
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ETSI

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3GPP TR 22.980 version 15.0.0 Release 15 3 ETSI TR 122 980 V15.0.0 (2019-07)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 6
Introduction . 6
1 Scope . 7
2 References . 7
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Symbols . 9
3.3 Abbreviations . 9
4 Principles, Purpose and Benefits of Network Composition . 10
4.1 Principles . 10
4.1.1 General . 10
4.1.2 Types of Network Composition . 10
4.1.2 Other common styles . 12
4.2 Purpose and Benefits . 12
4.3 Management aspects. 13
4.4 Resource control, resource usage and resource access provisioning . 13
4.5 Multi-lateral Compositions . 14
4.5.1 General . 14
4.5.2 A set of bi-lateral Cas . 15
4.5.3 A multi-lateral CA . 16
4.5.4 Advantages and disadvantages of different approaches to support multi-lateral compositions . 17
5 Composition Use Cases . 18
5.1 Description . 18
5.2 Network Composition between Core Networks . 18
5.2.1 General . 18
5.2.2 Inter-operator Network Composition (via GRX) . 18
5.2.2.1 Short Description . 18
5.2.2.2 Actor Specific Issues and Benefits . 19
5.2.2.3 Pre-Conditions . 19
5.2.2.4 Normal Flow . 20
5.2.2.5 Alternative Flow . 20
5.2.2.6 Additional Information . 20
5.2.3 On-demand inter-operator Network Composition . 21
5.2.3.1 Short Description . 21
5.2.3.2 Actor Specific Issues and Benefits . 21
5.2.3.3 Pre-Conditions . 22
5.2.3.4 Normal Flow . 22
5.2.3.5 Alternative Flow . 22
5.2.3.6 Additional Information . 23
5.3 Network Composition between Core Network and Access Network . 23
5.3.1 Composition of a nomadic I-WLAN with a 3GPP network . 23
5.3.1.1 Short Description . 23
5.3.1.2 Actor Specific Issues and Benefits . 23
5.3.1.3 Pre-Conditions . 24
5.3.1.4 Normal Flow . 24
5.3.1.5 Alternative Flows . 24
5.3.1.6 Additional Information . 24
5.3.2 Scenario Extensions for I-WLAN / 3GPP network composition . 25
5.3.2.1 Short Description . 25
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5.3.2.2 Actor Specific Issues and Benefits . 25
5.3.2.3 Pre-Conditions . 26
5.3.2.4 Normal Flow . 26
5.3.2.5 Alternative Flow . 26
5.3.2.6 Additional information . 26
5.3.3 Network Composition of a moving network with 3GPP networks . 26
5.3.3.1 Short Description . 26
5.3.3.2 Actor Specific Issues and Benefits . 27
5.3.3.3 Pre-Conditions . 28
5.3.3.4 Normal Flow . 28
5.3.3.5 Alternative Flow . 28
5.3.3.6 Additional Information . 28
5.3.4 Access Networks – Core/service/identity provider networks: Network Composition of different
types of access networks with core networks providing different types of end user services. 28
5.3.4.1 Scenario overview . 28
5.3.4.2 Scenario technical description . 29
5.3.4.3 Operator / user role. 29
5.3.4.4 Composition Type . 29
5.3.4.5 Framework Agreement and Composition Agreement . 29
5.3.4.6 Scenario Benefits . 29
5.4 Network Composition between Access Networks . 30
5.5 Network Composition between Core Network and PAN/PN/UE . 30
5.6 Network Composition between Access Network and PAN/PN/UE . 31
5.6.1 Network Composition of individual users with access networks in public spaces . 31
5.6.1.1 Short Description . 31
5.6.1.2 Actor Specific Issues and Benefits . 31
5.6.1.3 Pre-Conditions . 32
5.6.1.4 Normal Flow . 32
5.6.1.5 Alternative Flow . 32
5.6.1.6 Additional Information . 32
5.7 Network Composition between PNs. 32
5.7.1 Short Description . 32
5.7.2 Actor Specific Issues and Benefits. 33
5.7.3 Pre-Conditions . 33
5.7.4 Normal Flow . 33
5.7.5 Alternative Flow . 35
5.7.6 Additional Information . 35
5.8 3GPP network operators forming a roaming consortium: . 36
5.9 Decomposition between Core Network and Access Network . 37
5.9.1 Decomposition between a nomadic I-WLAN and a 3GPP network . 37
5.9.1.1 Short Description . 37
5.9.1.2 Actor Specific Issues and Benefits . 37
5.9.1.3 Pre-Conditions . 38
5.9.1.4 Normal Flow . 38
5.9.1.5 Alternative Flows . 38
5.9.1.6 Additional Information . 38
6 Description of Composition Process . 38
6.1 Composition process . 38
6.1.1 Media Sense . 39
6.1.2 Discovery / Advertisement . 39
6.1.3 Establishment of Security and Internetworking Connectivity . 39
6.1.4 Composition Agreement Negotiation . 40
6.1.5 Composition Agreement Realization . 40
6.1.6 Maintaining a composed Composition Capable Network. 40
6.2 Decomposition Process . 41
6.2.1 Composition Agreement Unrealization . 41
6.2.2 Composition Agreement Invalidation . 41
6.2.3 Tear down of Security and Internetworking Connectivity . 41
6.2.4 Media Channel Disabling . 41
6.2.5 Decomposition Process Cooperation . 42
6.3 Composition Update process . 42
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7 Potential Composition Requirements . 42
7.1 High-level requirements . 42
7.2 Security and Privacy . 43
7.3 Functional requirements for Network Composition . 43
8 Conclusions . 45
9 Other concepts considered useful in the context of Network Composition . 45
Annex A: (informative) Additional information on Network Composition . 46
A1 Illustration of composition procedure involving multiple Network Compositions . 46
Annex B (Informative): Change history . 49
History . 50

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3GPP TR 22.980 version 15.0.0 Release 15 6 ETSI TR 122 980 V15.0.0 (2019-07)
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 last couple of years an increasing number of heterogeneous network types have come to the focus of attention,
e.g. heterogeneous access systems (otherwise known as multi-access), Personal Area Networks (PANs), Personal
Networks (PNs),moving networks etc. This trend is expected to continue. Different scenarios have been studied in the
All-IP Network (AIPN) Feasibility Study in TR 22.978 [5], which lists "network extensibility/composition " as a key
aspect of AIPN. The integration of PANs and Personal Networks will be specified within the scope of the Personal
Network Management (PNM) work item. Related Technical Specification work is ongoing within the AIPN Stage 1 in
TS 22.258 [6] and Personal Network Management Stage 1 in TS 22.259 [7]. It would be desirable for 3GPP networks to
be able to integrate many of these heterogeneous network types, or to interwork with them, in an efficient manner that
for operators is easy to manage and control.
This Technical Report is the result of a feasibility study on Network Composition, the concept of heterogeneous
network/system integration and interworking. It builds on the work of AIPN and studies Network Composition in more
detail. This includes integration of networks with different administrative domains, and the dynamic and flexible
integration of ad-hoc networks, PANs, WLANs etc. Particularly, the possibility for a uniform Network Composition
procedure is explored, independent of what kind of network is "composed" with the 3GPP system. Complementing the
AIPN work, in this report a concrete dynamic “plug&play” and flexible Network Composition procedure is described.
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3GPP TR 22.980 version 15.0.0 Release 15 7 ETSI TR 122 980 V15.0.0 (2019-07)
1 Scope
The present document explores the feasibility of a uniform procedure for the integration of, and the interworking with, a
large variety of heterogeneous network types. This uniform procedure is called Network Composition. It focuses on ad-
hoc networks, PANs, moving networks etc., but also includes access systems. The goal is to avoid the need for defining
a new procedure for integration / interworking with each newly emerging network type and to explore the feasibility of
making the Network Composition procedure dynamic and to minimize human intervention ("plug and play"). Of
course, the high security (authentication, authorization) standards of 3GPP must thereby be maintained. Finally, it is
desirable for the Network Composition procedure to be flexible regarding what functionality is assumed in the
composing network.
It is conceivable that roaming within a pre-set commercial and technological environment could be established
dynamically using the same procedure.
This Feasibility Study covers the following aspects:
- Description of purpose and benefits of composition
- Composition use cases highlighting uniformity, dynamicity, security, manageability, scalability, flexibility, as
well as business aspects
- Study of potential composition requirements
- Description of the composition process
- Definition of traits and/or implications of introducing this functionality into the 3GPP system, covering subjects
such as management, multi-link radio access, mobility, context & policy awareness, security, and media
transcoding & adaptation capabilities.

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] “D7-2 Ambient Networks Security Architecture”, IST–2002-507134-AN/WP7/D02, F. Kohlmayer
et al
http://www.ambient-networks.org/publications/D7-1_PU.pdf
[2] “Host Identity Protocol Architecture”, R. Moskowitz, P. Nikander
http://www.ietf.org/rfc/rfc4423.txt
[3] “D3-2: Connecting Ambient Networks – Architecture and Protocol Design”, IST–2002-507137-
AN/WP3/D/3-2, J. Colás et al
http://www.ambient-networks.org/publications/AN D3-2 for publication.pdf
[4] 3GPP TR 21.905: “Vocabulary for 3GPP specifications”
[5] 3GPP TR 22.978: "All-IP Network (AIPN) feasibility study”
[6] 3GPP TS 22.258: “Service Requirements for the All-IP Network (AIPN); Stage 1”
[7] 3GPP TS 22.259: “Service Requirements for Personal Network Management; Stage 1”
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