ETSI TS 102 636-3 V1.1.1 (2010-03)

Technical Specification
Intelligent Transport Systems (ITS);
Vehicular Communications;
GeoNetworking;
Part 3: Network architecture
2 ETSI TS 102 636-3 V1.1.1 (2010-03)

Reference
DTS/ITS-0030004
Keywords
addressing, ITS, network, point-to-multipoint,
point-to-point, protocol
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3 ETSI TS 102 636-3 V1.1.1 (2010-03)
Contents
Intellectual Property Rights . 4
Foreword . 4
Introduction . 4
1 Scope . 5
2 References . 5
2.1 Normative references . 5
2.2 Informative references . 6
3 Definitions and abbreviations . 6
3.1 Definitions . 6
3.2 Abbreviations . 7
4 Network architecture for ITS stations . 8
5 Deployment scenarios of the generic network architecture. 10
6 Components of the network architecture . 11
6.1 General . 11
6.2 Sub-components of vehicle ITS stations and roadside ITS stations . 12
6.3 Network connectivity among ITS stations . 13
6.4 Network reference points . 14
7 ITS station protocol architecture . 15
7.1 Protocol stack overview . 15
7.2 Protocols of the ITS network & transport layer . 16
7.3 Assembly of network and transport protocols in the ITS station protocol stack . 17
7.3.1 Overview . 17
7.3.2 GeoNetworking protocol stack . 17
7.3.3 IPv6 stack . 17
7.3.4 Combination of the GeoNetworking protocol and IPv6 . 18
7.3.5 Protocol stacks for other network protocols . 18
8 Interfaces and service access points . 18
9 Frameworks for network and transport protocols . 20
9.1 GeoNetworking . 21
9.1.1 Ad hoc networking. 21
9.1.2 Addressing . 21
9.1.3 Resource management and data congestion control . 21
9.1.4 Integration of GeoNetworking and IPv6 . 21
9.1.5 Backward compatibility to IPv4 . 21
9.1.6 Usage of multiple ITS access technologies . 22
9.1.7 Security and privacy protection . 22
9.2 Other protocol stacks . 22
History . 23

ETSI
4 ETSI TS 102 636-3 V1.1.1 (2010-03)
Intellectual Property Rights
IPRs essential or potentially essential to the present document 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 (http://webapp.etsi.org/IPR/home.asp).
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.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Intelligent Transport System (ITS).
The present document is part 3 of a multi-part deliverable. Full details of the entire series can be found in part 1 [i.13].
Introduction
The present document specifies the network architecture for communication-based Intelligent Transport Systems (ITS)
using different ITS access technologies, such as ITS-G5. The network architecture provides - in combination with the
description of scenarios - a basis for the technical specification of the network and transport protocols, in particular for
GeoNetworking and its related protocols.
The present document first introduces a generic, high-level system view of the network architecture and defines four
basic deployment scenarios. Based on the system view, it identifies and describes the main network components and
specifies network reference points among them. Central component of the architecture is the ITS station. For this
component, an overview of its protocol architecture is given and different options of using the GeoNetworking protocol
in combination with transport protocols and protocols of the IP suite are described. Finally, the present document
defines frameworks for different aspects of networking and data transport, such as ad hoc communication, addressing,
resource management and data congestion control, integration with protocols of the IP suite and others.
The network architecture is based on the ITS architecture specified in [1] and represents the networking viewpoint of
the overall architecture.
Sources of input for the present document are [i.1], [i.2] and [i.3].
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5 ETSI TS 102 636-3 V1.1.1 (2010-03)
1 Scope
The present document specifies the network architecture for communication-based Intelligent Transport Systems (ITS).
The network architecture is focused on, but not limited to, vehicular communication. The architecture enables a wide
range of ITS applications for road safety, traffic efficiency as well as for infotainment and business.
The present document defines the framework for network and data transport protocols that provide data exchange
among ITS stations. A particular aspect is the GeoNetworking protocol that provides ad hoc and multi-hop
communication over short-range wireless technologies utilizing geographical positions.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] ETSI EN 302 665: "Intelligent Transport Systems (ITS); Communications Architecture".
[2] ISO/IEC 7498-1: "Information technology - Open Systems Interconnection - Basic Reference
Model: The Basic Model".
[3] ISO/IEC 8802-2: " Information technology - Telecommunications and information exchange
between systems - Local and metropolitan area networks - Specific requirements; Part 2: Logical
Link Control".
[4] IETF RFC 791: "Internet Protocol".
[5] IETF RFC 2460: "Internet Protocol, Version 6 (IPv6) Specification".
[6] IETF RFC 3775: "Mobility Support in IPv6".
[7] IETF RFC 768: "User Datagram Protocol".
[8] IETF RFC 793: "Transmission Control Protocol".
[9] IETF RFC 3963: "Network Mobility (NEMO) Basic Support Protocol".
[10] IETF RFC 5213: "Proxy Mobile IPv6".
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6 ETSI TS 102 636-3 V1.1.1 (2010-03)
2.2 Informative references
The following referenced documents are not essential to the use of the present document but they assist the user with
regard to a particular subject area. For non-specific references, the latest version of the referenced document (including
any amendments) applies.
[i.1] COMeSafety Deliverable 3.1 - Version 2.0 - March 2009: "European ITS Communication
Architecture - Overall Framework - Proof of Concept Implementation.
[i.2] PRE-DRIVE C2X Deliverable 1.4 - Version 1.2 - August 2009: "Refined Architecture". .
[i.3] GeoNet Deliverable 1.1 - Version 1.0 - March 2009: "Preliminary Architecture Design".
[i.4] ITU-R Recommendation M.687-2: "International Mobile Telecommunications 2000 (IMT-2000)".
[i.5] IETF RFC 3753: "Mobility Related Terminology".
[i.6] 3GPP: "UMTS Standard, Release 08 Specification".
NOTE: Available at: http://www.3gpp.org.
[i.7] IETF RFC 4213: "Basic Transition Mechanisms for IPv6 Hosts and Routers".
[i.8] IETF RFC 2185: "Routing Aspects of IPv6 Transition".
[i.9] ETSI TS 102 637-1: "Intelligent Transport Systems (ITS); Vehicular Communications; Basic Set
of Applications; Part 1: Functional Requirements".
[i.10] ETSI TS 102 637-2: "Intelligent Transport Systems (ITS); Vehicular Communications; Basic Set
of
...