1、 ETSI EN 302 636-3 V1.2.1 (2014-12) Intelligent Transport Systems (ITS); Vehicular Communications; GeoNetworking; Part 3: Network Architecture EUROPEAN STANDARD ETSI ETSI EN 302 636-3 V1.2.1 (2014-12) 2Reference REN/ITS-0030034 Keywords Autonomic Networking, ITS, network, safety ETSI 650 Route des L
2、ucioles 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 but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org The
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7、ction extend to reproduction in all media. European Telecommunications Standards Institute 2014. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of i
8、ts Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI EN 302 636-3 V1.2.1 (2014-12) 3Contents Intellectual Property Rights 4g3Foreword . 4g3Modal verbs terminology 4g3Introduction 4g31 Scope 5g32 References 5g3
9、2.1 Normative references . 5g32.2 Informative references 6g33 Definitions and abbreviations . 6g33.1 Definitions 6g33.2 Abbreviations . 7g34 Network architecture for ITS stations 8g35 Deployment scenarios of the generic network architecture 10g36 Components of the network architecture 11g36.1 Genera
10、l . 11g36.2 Sub-components of vehicle ITS stations and roadside ITS stations . 11g36.3 Network connectivity among ITS stations . 12g36.4 Network reference points . 14g37 ITS station protocol architecture 15g37.1 Protocol stack overview . 15g37.2 Protocols of the ITS networking and transport layer 16
11、g37.3 Assembly of networking and transport protocols in the ITS station protocol stack . 16g37.3.1 Overview 16g37.3.2 GeoNetworking protocol stack . 17g37.3.3 IPv6 stack . 17g37.3.4 Combination of the GeoNetworking protocol and IPv6 . 18g37.3.5 Protocol stacks for other network protocols . 18g38 Int
12、erfaces and service access points . 18g39 Framework for networking and transport protocols . 20g39.1 GeoNetworking functional requirements . 20g39.1.1 Ad hoc networking 20g39.1.2 Addressing 20g39.1.3 Resource management and decentralized data congestion control . 21g39.1.4 Integration of GeoNetworki
13、ng and IPv6 . 21g39.1.5 Backward compatibility to IPv4 . 21g39.1.6 Usage of multiple ITS access technologies . 21g39.1.7 Security and privacy protection 21g39.2 Other protocol stacks 21g3Annex A (informative): Bibliography . 22g3History 23g3ETSI ETSI EN 302 636-3 V1.2.1 (2014-12) 4Intellectual Prope
14、rty 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); Es
15、sential, 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:/ipr.etsi.org). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried
16、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 European Standard (EN) has been produced by ETSI Technical Committe
17、e Intelligent Transport Systems (ITS). The present document is part 3 of a multi-part deliverable. Full details of the entire series can be found in part 1 7. National transposition dates Date of adoption of this EN: 8 December 2014 Date of latest announcement of this EN (doa): 31 March 2015 Date of
18、 latest publication of new National Standard or endorsement of this EN (dop/e): 30 September 2015 Date of withdrawal of any conflicting National Standard (dow): 30 September 2016 Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “may not“, “need“, “
19、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 The present docu
20、ment 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 networkin
21、g 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 networ
22、k 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 protoc
23、ols 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 ar
24、chitecture is based on the ITS architecture specified in ETSI EN 302 665 1 and represents the networking viewpoint of the overall architecture. ETSI ETSI EN 302 636-3 V1.2.1 (2014-12) 51 Scope The present document specifies a network architecture of communications in Intelligent Transportation Syste
25、ms (ITSC). 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 tran
26、sport 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 o
27、f 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 reference document (including any amendments) applies. Referenced documents which are not found to be publicly avail
28、able 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 necessary for the
29、 application of the present document. 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 ETSI TS 102 637-1: “Intelligent Transport Systems (ITS);
30、Vehicular Communications; Basic Set of Applications; Part 1: Functional Requirements“. 4 ETSI TS 102 637-2: “Intelligent Transport Systems (ITS); Vehicular Communications; Basic Set of Applications; Part 2: Specification of Cooperative Awareness Basic Service“. 5 ETSI TS 102 637-3: “Intelligent Tran
31、sport Systems (ITS); Vehicular Communications; Basic Set of Applications; Part 3: Specifications of Decentralized Environmental Notification Basic Service“. 6 ETSI EN 302 663: “Intelligent Transport Systems (ITS); Access layer specification for Intelligent Transport Systems operating in the 5 GHz fr
32、equency band“. 7 ETSI EN 302 636-1: “Intelligent Transport Systems (ITS); Vehicular Communications; GeoNetworking; Part 1: Requirements“. 8 ETSI EN 302 636-2: “Intelligent Transport Systems (ITS); Vehicular Communications; GeoNetworking; Part 2: Scenarios“. 9 ETSI TS 102 636-4-1: “Intelligent Transp
33、ort System (ITS); Vehicular communications; GeoNetworking; Part 4: Geographical addressing and forwarding for point-to-point and point-to-multipoint communications; Sub-part 1: Media-Independent Functionality“. 10 ETSI TS 102 636-5-1: “Intelligent Transport Systems (ITS); Vehicular Communications; G
34、eoNetworking; Part 5: Transport Protocols; Sub-part 1: Basic Transport Protocol“. 11 ETSI TS 102 636-6-1: “Intelligent Transport Systems (ITS); Vehicular Communications; GeoNetworking; Part 6: Internet Integration; Sub-part 1: Transmission of IPv6 Packets over GeoNetworking Protocols“. ETSI ETSI EN
35、302 636-3 V1.2.1 (2014-12) 612 ETSI TS 102 723 (all parts): “Intelligent Transport Systems (ITS); OSI cross-layer topics“. 13 ETSI TS 102 731: “Intelligent Transport Systems (ITS); Security; Security Services and Architecture“. 14 ETSI TS 102 940: “Intelligent Transport Systems (ITS); Security; ITS
36、communications security architecture and security management“. 15 ISO/IEC 8802-2: “Information technology - Telecommunications and information exchange between systems - Local and metropolitan area networks - Specific requirements; Part 2: Logical Link Control“. 16 IETF RFC 791: “Internet Protocol“.
37、 17 IETF RFC 2460: “Internet Protocol, Version 6 (IPv6) Specification“. 18 IETF RFC 3775: “Mobility Support in IPv6“. 19 IETF RFC 768: “User Datagram Protocol“. 20 IETF RFC 793: “Transmission Control Protocol“. 21 IETF RFC 3963: “Network Mobility (NEMO) Basic Support Protocol“. 22 IETF RFC 5213: “Pr
38、oxy Mobile IPv6“. 23 IETF RFC 5648: “Multiple Care-of Addresses Registration“. 2.2 Informative references 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 Recommendation ITU-R M.687
39、-2: “International Mobile Telecommunications 2000 (IMT-2000)“. i.2 IETF RFC 3753: “Mobility Related Terminology“. i.3 3GPP: “UMTS Standard, Release 08 Specification“. NOTE: Available at: http:/www.3gpp.org. i.4 IETF RFC 4213: “Basic Transition Mechanisms for IPv6 Hosts and Routers“. i.5 IETF RFC 218
40、5: “Routing Aspects of IPv6 Transition“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in ETSI EN 302 665 1, ISO/IEC 7498-1 2 and the following apply: access network gateway: router at the edge of a network that connects an
41、ITS station-internal network to the ITS access network, the public access network, and the private access network access router: IPv6 router that acts as point of attachment and provides access to other networks, such as to the ITS access network NOTE: The definition is taken from RFC 3753 i.2 and a
42、dapted to the ITS network architecture. ad hoc network: wireless networks based on self-organization without the need for a coordinating infrastructure ETSI ETSI EN 302 636-3 V1.2.1 (2014-12) 7ad hoc router: router that is associated with the ITS ad hoc network and executes an ad hoc networking prot
43、ocol Application Unit (AU): physical unit in an ITS station that executes applications and uses the communication services of a communication ITS services provided by road traffic management centres and backend services; ITS operational support services required to operate the ITS, such as security
44、services. Core component of the architecture is the ITS station, which has two main roles: in its first role, the ITS station is a network node and acts as a communication source or sink. Likewise an ITS station can be a forwarder of data, e.g. in the ITS ad hoc network. In its second role, the ITS
45、station is placed at the network edge and connect the different networks via an ITS station internal network (see Figure 1). ITS stations shall be able to communicate via at least one of the following means (see Figure 2): a) via an ITS ad hoc network; b) via an ITS access network; c) via a public a
46、ccess network; d) via a private access network; e) via one of the access networks into the core network (e.g. the Internet). In addition to the networks listed above, an ITS station can also be attached to proprietary local networks of e.g. vehicle ITS sub-systems and roadside ITS sub-system as pres
47、ented in ETSI EN 302 665 1. Typical examples are: Controller Area Network (CAN) in a vehicle ITS sub-system. Legacy roadside infrastructure in a roadside ITS sub-system. However, these proprietary networks are outside the scope of the present document. Figure 2: High-level network architecture ETSI
48、ETSI EN 302 636-3 V1.2.1 (2014-12) 105 Deployment scenarios of the generic network architecture The ITS network architecture can be deployed in different scenarios to adapt to specific economical and regulatory conditions and to facilitate a gradual introduction of ITS. Basically, a deployment scena
49、rio is a subset of the overall architecture (see Figure 2) created by a combination of the different network types in support of the communication scenarios specified in ETSI EN 302 636-2 8. Four basic deployment scenarios can be defined. The basic deployment scenarios can further be extended to hybrid scenarios that combine two or more deployment scenarios. These combinations also include scenarios in which a network is connected to more than a single network simultaneously. Scenario A establishes
