1、 ETSI TS 102 890-1 V1.1.1 (2017-05) Intelligent Transport Systems (ITS); Facilities layer function; Part 1: Services Announcement (SA) specification TECHNICAL SPECIFICATION ETSI ETSI TS 102 890-1 V1.1.1 (2017-05)2 Reference DTS/ITS-0020044 Keywords interoperability, ITS, service, validation ETSI 650
2、 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 but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.
3、etsi.org/standards-search 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 differe
4、nce 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 chang
5、e of status. Information on the current status of this and other ETSI documents is available at https:/portal.etsi.org/TB/ETSIDeliverableStatus.aspx If you find errors in the present document, please send your comment to one of the following services: https:/portal.etsi.org/People/CommiteeSupportSta
6、ff.aspx 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
7、of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2017. 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 Trad
8、e Marks 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 Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 102 890-1 V1.1.1 (2017-05)3 Contents Intellectual
9、Property Rights 4g3Foreword . 4g3Modal verbs terminology 4g3Introduction 4g31 Scope 5g32 References 5g32.1 Normative references . 5g32.2 Informative references 5g33 Definitions, symbols and abbreviations . 6g33.1 Definitions 6g33.2 Symbols 7g33.3 Abbreviations . 7g34 SA functional description . 8g34
10、.1 SA functional architecture 8g34.2 Interfaces of the SA service 9g34.2.1 Interface between Application entity and Management entity 9g34.2.2 Interface between Facilities layer and the Management entity . 10g34.2.3 Interface between Facilities layer and the Security entity . 11g34.2.4 Interface bet
11、ween Facilities layer and the Networking 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 investigati
12、on, 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 Specificatio
13、n (TS) has been produced by ETSI Technical Committee Intelligent Transport Systems (ITS). The present document is part 1 of a multi-part deliverable covering Intelligent Transport Systems; Facilities layer function, as identified below: Part 1: “Services Announcement (SA) specification“; Part 2: “Po
14、sition and time facility specification“. Modal verbs terminology In the present document “shall“, “shall not“, “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 expressio
15、n of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. Introduction Some of the applications of the Basic Set of Applications (see ETSI TR 102 638 i.1) require ITS stations (Service Users) to have knowledge of a certain service of interest t
16、hat is provided by other ITS stations (Service Providers) via defined communication access technologies. The C-ITS protocol stack supports push and pull mechanisms in order to allow an ITS station to identify the availability of ITS services. The push mechanism is named “ITS service announcement“ wh
17、ich is also known as “ITS service advertisement“ (see ETSI EN 302 665 i.2). Throughout this document this service is referred to as service announcement service (SA service). The ITS SA service is a functionality agnostic to the medium and the announced service that can be used by specific services
18、to provide the push functionality mentioned above. In this sense, each specification of an ITS service will tailor the ITS service announcement to its needs. This means that ITS service definitions (e.g. in other standards or technical specifications) should make use of the provisions of the present
19、 document to define its service-specific use of ITS service announcement, i.e. to profile the ITS service announcement appropriately (for example the use of service announcement in a Platooning service). The present document defines therefore a general framework which needs to be followed whenever a
20、 specific service is specified. Compliance should be tested according to this service specification that defines the application-specific requirements for the service announcement. ETSI ETSI TS 102 890-1 V1.1.1 (2017-05)5 1 Scope The present document provides the specification of the Services Announ
21、cement (SA) service, including its protocol functions, based on ISO/TS 16460 1. The definition of the interface between Service Provider and Service Announcer ITS stations (ITS-S) as well as of the communication steps following the service announcement protocol procedure and related protocol details
22、 between Service Announcer and Service User ITS-S are application-specific are not covered by the present document. 2 References 2.1 Normative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific reference
23、s, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at https:/docbox.etsi.org/Reference. NOTE: While
24、 any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are necessary for the application of the present document. 1 ISO/TS 16460:2016: “Intelligent transport systems - Communications access for
25、 land mobiles (CALM) - Communications protocol messages for global usage“. 2 ETSI TS 102 894-2: “Intelligent Transport Systems (ITS); Users and applications requirements; Part 2: Applications and facilities layer common data dictionary“. 3 ETSI EN 302 636-4-1: “Intelligent Transport Systems (ITS); V
26、ehicular Communications; GeoNetworking; Part 4: Geographical addressing and forwarding for point-to-point and point-to-multipoint communications; Sub-part 1: Media-Independent Functionality“. 4 ETSI TS 103 097 (V1.2.1): “Intelligent Transport Systems (ITS); Security; Security header and certificate
27、formats“. 5 ETSI EN 302 931 (V1.1.1): “Intelligent Transport Systems (ITS); Vehicular Communications; Geographical Area Definition“. 6 Recommendation ITU-T X.691/ISO/IEC 8825-2 (2015): “Information technology - ASN.1 encoding rules: Specification of Packed Encoding Rules (PER)“. 7 ETSI TS 102 965: “
28、Intelligent Transport Systems (ITS); Application Object Identifier (ITS-AID); Registration“. 8 ETSI TS 103 248: “Intelligent Transport Systems (ITS); GeoNetworking; Port Numbers for the Basic Transport Protocol (BTP)“. 9 IEEE 1609.3 - 2016: “IEEE Standard for Wireless Access in Vehicular Environment
29、s (WAVE) - Networking Services“. 2.2 Informative references References are either specific (identified by date of 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 refe
30、renced document (including any amendments) applies. ETSI ETSI TS 102 890-1 V1.1.1 (2017-05)6 NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are not necessary for the applicat
31、ion of the present document but they assist the user with regard to a particular subject area. i.1 ETSI TR 102 638 (V1.1.1): “Intelligent Transport Systems (ITS); Vehicular Communications; Basic Set of Applications; Definitions“. i.2 ETSI EN 302 665 (V1.1.1): “Intelligent Transport Systems (ITS); Co
32、mmunications Architecture“. i.3 ISO/TS 17423:2014: “Intelligent transport systems - Cooperative systems - ITS application requirements and objectives for selection of communication profiles“. i.4 ETSI TS 102 723-11: “Intelligent Transport Systems (ITS); OSI cross-layer topics; Part 11: Interface bet
33、ween networking and transport layer and facilities layer“. i.5 ETSI TS 102 723-5 (V1.1.1): “Intelligent Transport Systems (ITS); OSI cross-layer topics; Part 5: Interface between management entity and facilities layer“. i.6 ETSI EN 302 636-5-1: “Intelligent Transport Systems (ITS); Vehicular Communi
34、cations; GeoNetworking; Part 5: Transport Protocols; Sub-part 1: Basic Transport Protocol“. i.7 ETSI TS 103 301: “Intelligent Transport Systems (ITS); Vehicular Communications; Basic Set of Applications; Facilities layer protocols and communication requirements for infrastructure services“. 3 Defini
35、tions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: ITS application: association of two or more complementary ITS-S applications ITS-S application: fragment of an ITS application available at an ITS-S that uses ITS-S s
36、ervices to connect to one or more other fragments of the same ITS application ITS-S gateway: gateway functionality based on the ITS-S reference architecture ITS-S router: routing functionality based on the ITS-S reference architecture ITS service: service provided by an ITS application to the user o
37、f ITS ITS-S service: communication functionality offered by an ITS-S to an ITS-S application Services announcement: provision, via an ITS communication functionality, of information about an ITS service NOTE: Such information can include the ITS service identity, availability and communication detai
38、ls. Service announcer ITS-S: ITS-S that announces services on behalf of the service provider ITS-S by transmitting SAEM Service provider ITS-S: ITS-S that provides remote or local ITS services Service user ITS-S: consumer of ITS services monitoring SAEM for an announced ITS service opportunity of in
39、terest NOTE: These definitions are in line with ETSI EN 302 665 i.2. ETSI ETSI TS 102 890-1 V1.1.1 (2017-05)7 3.2 Symbols For the purposes of the present document, the following symbols apply: changeCount Component of samBody channelIndex Component of ServiceInfo pointer to ChannelInfo ChannelInfo D
40、atatype of channelInfos list entry channelInfos Component of samBody chOptions Component of ServiceInfo contentCount Component of changeCount defaultGateway Component of routingAdvertisement ExtendedChannelInfos Component of extensions of samBody extensions Component of samBody GatewayMACaddress Com
41、ponent of routingAdvertisement IPv6Address Component of chOptions ItsPduHeader Header component of the SAEM messageID Component of the ItsPduHeader protocolType Component of chOptions protocolVersion Component of the ItsPduHeader ProviderMACaddress Component of chOptions routingAdvertisement Compone
42、nt of samBody saID Component of changeCount sam Component of the SAEM Sam Datatype specified in ISO/TS 16460 1 samBody Component of sam serviceID Component of ServiceInfo ServiceInfo Datatype of serviceInfos list entry serviceInfos Component of samBody serviceProviderPort Unused component of chOptio
43、ns SrvAdvChangeCount Datatype of changeCount stationID Component of the ItsPduHeader systemService Unused component of chOptions 3.3 Abbreviations For the purposes of the present document, the following abbreviations apply: AID Application Identifier API Application Programming Interface ASN Abstrac
44、t Syntax Notation BTP Basic Transport ProtocolC-ITS Cooperative ITS GN GeoNetworkingID Identifier IETF Internet Engineering Task Force IP Internet Protocol IPv6 Internet Protocol Version 6 ISO International Organization for Standardization ITS Intelligent Transport System ITS-S ITS Station ITU-T Int
45、ernational Telecommunication Union - Telecommunication Standardization Sector MAC Medium Access Control MA-SAP Management to Application Service Access Point MDA Minimum Dissemination Area MF Management to Facilities MF-SAP Management to Facilities Service Access Point NF Networking square4 transmis
46、sion management. - For the SAEM reception (RX) service: square4 message decoding; square4 reception management. The SA management function of the management entity is responsible for the registration / update / deregistration of applications. The SA service is implemented in a Service Provider, Serv
47、ice Announcer, or Service User ITS-S. Figure 1 presents the SA service in the context of the ITS-S reference architecture and its logical interfaces with other entities and layers. The SA service supports different configurations with respect of the Service Provider role and the Service Announcer ro
48、le, such as: Service Provider and Service Announcer functionality are implemented in the same ITS-S; Service Provider and Service Announcer functionality are implemented in separate ITS-S; and other configurations. ETSI ETSI TS 102 890-1 V1.1.1 (2017-05)9 Figure 1: SA in the context of the ITS-S ref
49、erence architecture 4.2 Interfaces of the SA service 4.2.1 Interface between Application entity and Management entity A Service Provider ITS-S application may register / update / deregister its offered ITS service at the management entity using the parameters specified in table 1. A Service User ITS-S application may register / update / deregister potential services of interest at the management entity using the parameters specified in table 2. A Service User ITS-S application may be notified of the reception of an SAEM c
