1、BS ISO24103:2009ICS 03.220.01; 35.240.60NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDIntelligent transportsystems Communicationsaccess for land mobiles(CALM) Mediaadapted interface layer(MAIL)This British Standardwas published under theauthority of the Standa
2、rdsPolicy and StrategyCommittee on 31 August2009 BSI 2009ISBN 978 0 580 58757 3Amendments/corrigenda issued since publicationDate CommentsBS ISO 24103:2009National forewordThis British Standard is the UK implementation of ISO 24103:2009.The UK participation in its preparation was entrusted to Techni
3、calCommittee EPL/278, Road transport informatics.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with
4、a British Standard cannot confer immunityfrom legal obligations.BS ISO 24103:2009Reference numberISO 24103:2009(E)ISO 2009INTERNATIONAL STANDARD ISO24103First edition2009-06-01Intelligent transport systems Communications access for land mobiles (CALM) Media adapted interface layer (MAIL) Systmes int
5、elligents de transport Accs aux communications des services mobiles terrestres (CALM) Couche dinterface adapte au milieu (MAIL) BS ISO 24103:2009ISO 24103:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or view
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10、1 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2009 All rights reservedBS ISO 24103:2009ISO 24103:2009(E) ISO 2009 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Conformance. 1 3 Normative references . 2 4 Terms and definitions.
11、2 5 Symbols and abbreviated terms . 2 6 Requirements 4 6.1 Structure and operation . 4 6.2 Communication control method . 6 7 Extended link control protocol 7 7.1 General. 7 7.2 Transmission service control 8 7.3 Client/server communication control . 11 7.4 Communication control management 13 8 Netw
12、ork control protocol . 15 8.1 General. 15 8.2 LAN control protocol 16 8.3 Local port control protocol 19 9 Adaptation . 19 Annex A (informative) ASN.1 definitions . 20 Annex B (informative) Relationship of primitives and protocol data units (PDU). 23 Bibliography . 24 BS ISO 24103:2009ISO 24103:2009
13、(E) iv ISO 2009 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body in
14、terested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechni
15、cal Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the
16、 technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.
17、 ISO shall not be held responsible for identifying any or all such patent rights. ISO 24103 was prepared by Technical Committee ISO/TC 204, Intelligent transport systems. BS ISO 24103:2009ISO 24103:2009(E) ISO 2009 All rights reserved vIntroduction This International Standard is part of a family of
18、International Standards for CALM (communication access for land mobiles) which determine a common architecture, network protocols and air interface definitions for wireless communications using cellular second generation, cellular third generation, mobile wireless broadband, microwaves, millimetre w
19、aves, infra-red communications, and so on. Other air interfaces may be added at a later date. These air interfaces are designed for providing parameters and protocols for broadcast, point-point, vehicle-vehicle, and vehicle-point communications in the intelligent transport systems (ITS) sector. This
20、 International Standard determines the media adapted interface layer (MAIL), which enables communication media such as dedicated short-range communication (DSRC) compliant with ISO 15628 (DSRC application layer) to be used as CALM media for internet protocol (IP)-based communications. DSRC media wit
21、h the following characteristics are available. Proven radio communication for ITS: 1) direct communication based on ISO 15628, e.g. for electronic fee collection (EFC) in ARIB STD-T75, a 4 MB/s data rate and a communication zone of approximately 30 m, available for response during high-speed driving
22、; 2) practical experiments for IP communication over the ISO 15628 application layer a DSRC application sub-layer (ARIB STD-T88) that works on application ID 18 of ISO 15628. Communication in a comparatively small communication zone: 1) easy identification of a communication partner; 2) reuse freque
23、ncy in every small zone and effective utilization of frequency resources; 3) less liable to be affected by shadowing. BS ISO 24103:2009BS ISO 24103:2009INTERNATIONAL STANDARD ISO 24103:2009(E) ISO 2009 All rights reserved 1Intelligent transport systems Communications access for land mobiles (CALM) M
24、edia adapted interface layer (MAIL) 1 Scope This International Standard determines the logical structure of using dedicated short-range communication (DSRC) with an OSI (open systems interconnection) application layer as a CALM medium for IP communications. DSRC to which MAIL is applicable are those
25、 with an application layer compliant with ISO 15628, and the standards of such DSRC include the following: ARIB STD-T75 DSRC (Japan); TTAS.KO-06.0025 DSRC in the 5,8 GHz band (Korea); EN 12253 DSRC physical layer using microwave in the 5,8 GHz band, EN 12795 DSRC data link layer and EN 12834 DSRC ap
26、plication layer (Europe). Figure 1 shows the architecture of the MAIL, which can be considered as a specific extension of the communication adaptation layer (CAL) specified by ISO 21218. ApplicationsISO 21210 CALM network layerISO 24103 CALM MAILDSRC with ISO 15628-compliant L7ManagemententityISO212
27、10 CME/NMEISO 24102 IMENOTE In furnishing additional information on CALM MAIL, reference can be made to ARIB STD-T88 (DSRC application sub layer). Figure 1 CALM MAIL in CALM architecture 2 Conformance In order for conformance to be claimed with this International Standard, communication shall be est
28、ablished in full compliance with the procedures and protocols given in ISO 15628, compliant with the appropriate national or regional standards, and shall be in accordance with ISO 21210, ISO 21217 and ISO 21218. BS ISO 24103:2009ISO 24103:2009(E) 2 ISO 2009 All rights reserved3 Normative references
29、 The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 15628, Road transport and traffic telematics
30、 Dedicated short range communication (DSRC) DSRC application layer ISO 21210, Intelligent transport systems Communications access for land mobiles (CALM) Networking protocols1)ISO 21217, Intelligent transport systems Communications access for land mobiles (CALM) Architecture1)ISO 21218, Intelligent
31、transport systems Communications access for land mobiles (CALM) Medium service access points ISO 24102, Intelligent transport systems Communications access for land mobiles (CALM) CALM Management 2)4 Terms and definitions For the purposes of this document, the following terms and definitions apply.
32、4.1 ISO 15628 DSRC dedicated short-range communication system for ITS applications with an application layer as specified in ISO 15628 4.2 base station fixed DSRC equipment on the roadside, which performs communications with multiple mobile stations 4.3 media adapted interface layer MAIL functional
33、structure for using DSRC as a CALM medium 4.4 mobile station mobile communication facility capable of receiving and transmitting information from/to the base stations 5 Symbols and abbreviated terms A-PDU application-layer protocol data unit ARIB association of radio industries and businesses A-SDU
34、application-layer service data unit ASN abstract syntax notation 1) To be published. 2) Under preparation. BS ISO 24103:2009ISO 24103:2009(E) ISO 2009 All rights reserved 3CAL communication adaptation layer CALM communications access for land mobiles CI communication interface CIMAE communication in
35、terface management adaptation entity C-SAP communication SAP, as offered by the CAL to the CALM network layer DHCP dynamic host configuration protocol DL data link DLL data link layerDSRC dedicated short-range communication EID element identifier ELCP extended link control protocol I-KE initializati
36、on kernel element ind indication (service primitive type) IP internet protocol ITS intelligent transport systems L7 layer 7 (application layer) LAN local area network LANCP LAN control protocol LID link identifier LPCP local port control protocol L-PDU lower layer protocol data unit MAC media access
37、 control MAIL media adapted interface layer ME management entity MIB management information base M-PDU media protocol data unit MRU maximum receive unit NCP network control protocolOBU on-board unit PDU protocol data unit PHY-PDU physical layer protocol data unit req request (service primitive type)
38、 RSU road side unit SAP service access point SDU service data unit TCP transmission control protocol T-KE transfer kernel element TTAS telecommunications technology association standard U-PDU upper layer protocol data unit BS ISO 24103:2009ISO 24103:2009(E) 4 ISO 2009 All rights reserved6 Requiremen
39、ts 6.1 Structure and operation The MAIL interfaces ISO 15628 DSRC application layer protocol stacks and CALM network protocols to provide the DSRC with supplemental communications functions (see Figure 2). The CALM MAIL communication interface (CI) shall be in accordance with a) ISO 21218, for lower
40、 layer service access points, b) ISO 24102, for interface management c) ISO 21217, for global architecture, and d) ISO 21210, for IP networking, as restricted and/or amended by this International Standard. This communication interface is a CALM wireless CI which shall support CI class CIC-wl5, suppo
41、rt at least CI access class CIAC-1, provide a C-SAP, and provide an M-SAP, all in accordance with ISO 21218. CALM MAILCALM network layerCIMAEDSRC with ISO 15628- compliant L7InterfacemanagemententitySAPDSRCMENCP/LANCPELCPCALSAPFigure 2 Medium adaptation Figure 3 shows the structure of the core part
42、of MAIL. The MAIL provides IP communications via DSRC to CALM without requiring awareness of ISO 15628 protocol stacks. The functions that adapt the application layer of the ISO 15628 DSRC to CALM are defined below. MAIL consists of the extended link control protocol (ELCP) and the network control p
43、rotocol (NCP). The ELCP interfaces with the ISO 15628 protocol stacks, complements them, and provides management functions. The NCP provides encapsulation functions for upper layer protocols. BS ISO 24103:2009ISO 24103:2009(E) ISO 2009 All rights reserved 5 The ELCP has the following functions: 1) t
44、ransmission service control; 2) client/server communication control; 3) communication control management. The NCP has the following functions: 1) LAN control; 2) local port control (optional). The NCP may consist of multiple communication control protocols for interfacing with various types of netwo
45、rk protocols. The LAN control protocol is a communication control protocol which interfaces with the IP network protocol. The local port control protocol is an optional communication control protocol specified in ISO 29281, and is used for non-IP network applications. The present International Stand
46、ard focuses on the LAN control protocol used to interface with the IPv6 CALM network layer. CALM Network Interface (ISO 21210)ISO 15628 layer managementISO 15628DSRC L7I-KE T-KE(De) register serviceReady application service ACTION service(MIB: management information base)Communication control manage
47、mentMIBService processingConnection controlClient /servercommunication controlTransmission service controlELCPLANCP : LAN control protocolNCPISO 24103CALM MAILISO 15628EIDCALM non-IP(ISO 29281)LPCP : Local port control protocol(defined in ISO 29281)DLL protocolMedium SAP (ISO 21218)NCPCALFigure 3 St
48、ructure of MAIL core part Figure 4 shows an outline of MAIL operation. DSRC layer 7 establishes an ISO 15628 DSRC communication link. The ELCP shall be activated by a notification of a communication link establishment from DSRC L7. After the activation, the ELCP first shall compare its own MAIL prof
49、ile with the peer MAIL profile passed through the established communication link and confirm the available functions in the ELCP. During this stage, the ELCP shall not conduct any settings related to the NCP. After the confirmation of MAIL profiles, when an access management function is usable, a peer authentication may be conducted. In the case of successful authentication, the ELCP may activate the communication control protocol (e.g. LANCP) in the NCP and start the NCP process
