1、 ETSI TS 102 637-3 V1.1.1 (2010-09)Technical Specification Intelligent Transport Systems (ITS);Vehicular Communications;Basic Set of Applications;Part 3: Specifications of DecentralizedEnvironmental Notification Basic ServiceETSI ETSI TS 102 637-3 V1.1.1 (2010-09)2Reference DTS/ITS-0010002-3 Keyword
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6、ept as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2010. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI regist
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8、re Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 102 637-3 V1.1.1 (2010-09)3Contents Intellectual Property Rights 5g3Foreword . 5g3Introduction 5g31 Scope 6g32 References 6g32.1 Normative references . 6g32.2 Informative references 7g33 Definitions and abbreviations . 7g33.1 D
9、efinitions 7g33.2 Abbreviations . 8g34 Road hazard warning application general overview 9g34.1 Application overview . 9g34.2 Concept of DEN basic service 10g35 DEN basic service 11g35.1 Functional components . 11g35.1.1 DEN management . 11g35.1.2 Local Dynamic Map (LDM) . 12g35.1.3 RHW application 1
10、2g35.2 DENM dissemination . 13g35.2.1 Dissemination requirements 13g35.3 Termination of the event 13g36 Message format specification . 14g36.1 General structure 14g36.1.1 DENM management container . 15g36.1.2 DENM situation container 15g36.1.3 DENM location container . 16g36.1.3.1 Event position . 1
11、6g36.1.3.2 Relevance area 17g36.1.3.3 Location referencing . 18g36.2 Detailed DENM format 18g36.2.1 Format definition of DENM . 18g36.2.2 Data presentation of DENM . 19g36.2.3 Content of DENM . 19g36.2.4 DENM format . 21g3Annex A (informative): Packed encoding rule . 33g3Annex B (normative): ASN.1 p
12、resentation for data elements and data frames . 34g3B.1 DE_protocolVersion . 34g3B.2 DE_messageID . 34g3B.3 DE_generationTime . 34g3B.4 DF_actionID . 34g3B.5 DE_dataVersion . 35g3B.6 DE_expiryTime 35g3B.7 DE_frequency . 35g3B.8 DE_reliability . 36g3B.9 DE_isNegation . 36g3ETSI ETSI TS 102 637-3 V1.1
13、.1 (2010-09)4B.10 DE_trafficfloweffect 36g3B.11 DF_situation . 36g3B.12 DF_linkedCause . 36g3B.13 DE_severity 37g3B.14 DF_eventCharacteristics 37g3B.15 DF_eventPosition . 37g3B.16 DF_ refPosition 37g3B.17 DE_longitude . 37g3B.18 DE_latitude . 38g3B.19 DE_elevation 38g3B.20 DE_heading 38g3B.21 DE_pos
14、itionConfidence . 38g3B.22 DE_elevationConfidence 38g3B.23 DE_eventSpeed 38g3B.24 DF_traceLocData . 39g3Annex C (informative): General use case procedure and data flow 40g3C.1 Road hazard detection 41g3C.2 Use case triggering and termination . 41g3C.2.1 Application data provision . 41g3C.2.2 Communi
15、cation requirement definitions 41g3C.2.3 DENM construction . 41g3C.2.4 Termination 42g3C.3 Dissemination and updating . 42g3C.4 DENM handling . 43g3C.5 Information-centric forwarding 43g3C.6 HMI warning 43g3Annex D (informative): Text description of an example relevance area . 44g3Annex E (informati
16、ve): Bibliography . 45g3History 46g3ETSI ETSI TS 102 637-3 V1.1.1 (2010-09)5Intellectual 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
17、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.o
18、rg/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, essent
19、ial 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 covering Intelligent Transport Systems (ITS); Vehicular Communications; Basic Set of Ap
20、plications, as identified below: Part 1: “Functional Requirements“; Part 2: “Specifications of Cooperative Awareness Basic Service“; Part 3: “Specifications of Decentralized Environmental Notification Basic Service“; Part 4: “Operational Requirements“. Introduction ITS use cases are distributed over
21、 multiple ITS stations. Co-operating ITS stations are interacting to provide a large diversity of customer services that satisfy different types of functional and operational requirements. ETSI TC ITS has defined a Basic Set of Applications (BSA) i.8 that can be deployed within a three-year time fra
22、me after the completion of their standardization. In this BSA, the Road Hazard Warning (RHW) application is composed of multiple use cases. ETSI TC ITS defines the decentralized environmental notification (DEN) basic service that supports the various RHW use cases. The specification of this basic se
23、rvice is the purpose of the present document. The RHW application is an active road safety application that is distributed among vehicles ITS station and roadside ITS stations. The application execution is achieved through direct V2V / I2V communications. Furthermore, this application broadcasts use
24、ful information that is related to road traffic conditions. Consequently, roadside ITS stations may collect the broadcasted information from vehicle ITS stations, process the information and forward the information to a central ITS station in order to improve the traffic efficiency and traffic manag
25、ement. In this case, the application execution can be achieved through V2V/I2V and/or other communications as defined in 6. ETSI ETSI TS 102 637-3 V1.1.1 (2010-09)61 Scope The present document provides the specification of the DEN basic service, which mainly supports the RHW application. More specif
26、ically, the present document specifies the semantics of the Decentralized Environmental Notification Message (DENM) and the DENM handling. A DENM transmission is triggered by a cooperative RHW use case to provide information about a specific driving environment event or traffic event to other ITS st
27、ations. The ITS station that receives the DENM is able to provide appropriate HMI information to the end user, who makes use of these information or takes actions in its driving and travelling. The concept of the DEN basic service is derived from the functional requirements of BSA as defined in i.4
28、and operational requirements of BSA as defined in i.5. Detailed specifications of the RHW use cases are out of scope of the present document. The present document is based on DENM specifications defined in i.1 and i.2. 2 References References are either specific (identified by date of publication an
29、d/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 available in the expe
30、cted 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 application of t
31、he present document. 1 SAE J2735: “Dedicated Short Range Communications (DSRC) message set dictionary“. NOTE: Available at: http:/ 2 Mobile.Info WG Automotive (March 2006): “TPEG TEC Application Specification V1.0“. 3 ETSI EN 302 665: “Intelligent Transport Systems (ITS); Communications Architecture
32、“. 4 ITU-T Recommendation X.691/ISO/IEC 8825-2: “Information technology - ASN.1 encoding rules: Specification of Packed Encoding Rules (PER)“. NOTE: Available at: http:/www.itu.int/ITU-T/studygroups/com17/languages/X.691-0207.pdf. 5 Mobile.Info WG Automotive (March 2006): “TPEG-Automotive Protocol L
33、ocation Container TAP-LOC V1.0“. 6 ETSI TS 102 636-3: “Intelligent Transport Systems (ITS); Vehicular Communications; GeoNetworking; Part 3: Network architecture“. ETSI ETSI TS 102 637-3 V1.1.1 (2010-09)72.2 Informative references The following referenced documents are not necessary for the applicat
34、ion of the present document but they assist the user with regard to a particular subject area. i.1 Car2Car Communication Consortium (August 2007): “Car2Car Communication Consortium Manifesto“, Version 1.1. NOTE: http:/www.car-2-car.org. i.2 Car2Car Communication Consortium: “Message description: Dec
35、entralized Environmental Notification Message“, Version 1.0. i.3 ETSI TR 102 863: “Intelligent Transport System (ITS); Vehicular Communications; Basic Set of Applications; Local Dynamic Map (LDM); Rationale for and guidance on standardization“. i.4 ETSI TS 102 637-1: “Intelligent Transport Systems (
36、ITS); Vehicular Communications; Basic Set of Applications; Part 1: Functional Requirements“. i.5 ETSI TS 102 637-4: “Intelligent Transport Systems (ITS); Vehicular Communications; Basic set of applications; Part 4: Operational Requirements“. i.6 ETSI TS 102 637-2: “Intelligent Transport Systems (ITS
37、); Vehicular Communications; Basic Set of Applications; Part 2: Specification of Cooperative Awareness Basic Service“. i.7 ETSI TS 102 636-4-1: “Intelligent Transport System (ITS); Vehicular communications; GeoNetworking; Part 4: Geographical addressing and forwarding for point-to-point and point-to
38、-multipoint communications; Subpart 1: Media independent functionalities“. i.8 ETSI TR 102 638: “Intelligent Transport Systems (ITS); Vehicular Communications; Basic Set of Applications; Definitions“. 3 Definitions and abbreviations 3.1 Definitions For the purpose of the present document, the terms
39、and definitions given in EN 302 665 3 and the following apply: application support: subset of facilities, providing support elements for applications basic set of applications: group of applications, supported by the vehicular communication system NOTE: The basic set of applications can be deployed
40、at a targeted time (day 1) after completion of their standards with the objective to serve societal and business objectives of private and public road transport stakeholders. The BSA is defined in i.8. communication support: subset of facilities, providing support for communications DEN basic servic
41、e: set of facilities and components to support RHW use cases, DENM management and DENM dissemination DENM: ITS facility layer message providing RHW related information destination area: geographical area for DENM dissemination NOTE: The destination area is defined and specified by the ITS networking
42、 and transport layer. event: road hazard situation, a driving environment situation, or a traffic condition situation NOTE: An event potentially has an impact on the road safety, the traffic efficiency and/or the driving conditions. ETSI ETSI TS 102 637-3 V1.1.1 (2010-09)8facilities: functionalities
43、, services or data provided by the facilities layer NOTE: These functionalities, services and data are gathered in the ITS facilities layer, which contains some generic application elements (middleware), presentation and session layers of the OSI (Open System Interconnection) reference model. inform
44、ation support: sub set of facilities, providing support for data management ITS application: system that defines and implements an ITS service for the users of the system ITS use cases: procedure of executing an ITS application in a particular situation with a specific purpose LDM: local georeferenc
45、ed database containing a V2X-relevant image of the real world NOTE: Applications can retrieve the data from the LDM by means of the LDM Management i.3. originator ITS station: In the context of the present document, the ITS station that generates and transmits the DENM reference position: In the con
46、text of the present document, a geographical position that represents the event position NOTE: The reference position is included in the DENM as a data frame. reliability: In the context of the present document, the probability that a detected event is truly existent relevance area: geographical are
47、a, one or several road section, or a traffic direction within which ITS stations are concerned by the event V2I, I2V: direct vehicle to roadside infrastructure communication using a wireless local area network V2V: direct vehicle(s) to vehicle(s) communication using a wireless local area network NOT
48、E: Other networks can be used for use case development. The selection of the optimal network in term of cost-efficiency will be dynamically achieved, in the future, according to the local availability of networks, their respective costs and performances. 3.2 Abbreviations For the purposes of the pre
49、sent document, the abbreviations given in EN 302 665 3 and the following apply: ASN.1 Abstract Syntax Notation One BER Basic Encoding Rules BSA Basic Set of Applications CAM Cooperative Aware Message CAN Controller Area Network DE Data Element DEN Decentralized Environmental Notification DENM DEN Message DF Data FrameDSRC Dedicated Short Range Communications HMI Human Machine Interface ITS Intelligent Transport System LDM Local Dynamic Map OSI Open System Interconnection PDU Prot
