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1、BS ISO 21218:2008 ICS 03.220.01; 35.240.60 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BRITISH STANDARD Intelligent transport systems Communications access for land mobiles (CALM) Medium service access points Licensed Copy: London South Bank University, South Bank Universi
2、ty, 16/11/2008 11:45, Uncontrolled Copy, (c) BSI This British Standard was published under the authority of the Standards Policy and Strategy Committee on 3 2008 BSI 2008 ISBN 978 0 580 57264 7 Amendments/corrigenda issued since publication DateComments BS ISO 21218:2008 National foreword This Briti
3、sh Standard is the UK implementation of ISO 21218:2008. The UK participation in its preparation was entrusted to Technical Committee EPL/278, Road transport informatics. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purpo
4、rt to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. 0 September Licensed Copy: London South Bank University, South Bank University, 16/11/2008 11:45, Uncontrolle
5、d Copy, (c) BSI BS ISO 21218:2008 Reference number ISO 21218:2008(E) ISO 2008 INTERNATIONAL STANDARD ISO 21218 First edition 2008-08-15 Intelligent transport systems Communications access for land mobiles (CALM) Medium service access points Systmes de transport intelligents Accs de communication pou
6、r services mobiles terrestres (CALM) Points daccs au service moyen Licensed Copy: London South Bank University, South Bank University, 16/11/2008 11:45, Uncontrolled Copy, (c) BSI BS ISO 21218:2008 ISO 21218:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adob
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11、e 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2008 All rights reserved Licensed Copy: London South Bank University, South Bank University, 16/11/2008 11:45, Uncontrolled Copy, (c) BSI BS ISO 21218:2008 ISO
12、21218:2008(E) ISO 2008 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references. 1 3 Terms and definitions. 1 4 Abbreviated terms 2 5 Requirements 4 5.1 Communication Module Adaptation. 4 5.1.1 General. 4 5.1.2 Communication Adaptation Layer 5 5.1.3 CI Mana
13、gement Adaptation Entity 5 5.2 Communication Interface. 6 5.2.1 Classes 6 5.2.2 Access Classes. 6 5.2.3 CI Identifier 7 5.2.4 Procedures 8 5.3 Virtual Communication Interface 15 5.3.1 Concept 15 5.3.2 VCI Identifier 16 5.3.3 Procedures 17 5.4 Communication SAP 18 5.4.1 LLC Types of Operation. 18 5.4
14、.2 Addressing 19 5.4.3 Service primitives (informative) 22 5.4.4 Priority . 24 5.5 Management SAP 25 5.5.1 General. 25 5.5.2 CIMAE-SETPARAM. 25 5.5.3 CIMAE-GETPARAM. 27 5.5.4 CIMAE-COMMAND 29 5.5.5 CIMAE-REQUEST 32 5.5.6 CIMAE-NOTIFY 35 5.5.7 MAC management frame 35 6 Conformance. 36 7 Test methods.
15、 36 Annex A (normative) CI parameters. 37 Annex B (normative) COMMANDs 54 Annex C (normative) REQUESTs 58 Annex D (normative) Error/return codes . 61 Annex E (normative) ASN.1 definitions . 62 Bibliography. 72 Licensed Copy: London South Bank University, South Bank University, 16/11/2008 11:45, Unco
16、ntrolled Copy, (c) BSI BS ISO 21218:2008 ISO 21218:2008(E) iv ISO 2008 All rights reserved Foreword 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 o
17、ut through ISO technical committees. Each member body interested 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 c
18、ollaborates closely with the International Electrotechnical 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
19、 Standards. Draft International Standards adopted by the 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 elemen
20、ts of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 21218 was prepared by Technical Committee ISO/TC 204, Intelligent transport systems. Licensed Copy: London South Bank University, South Bank University, 16/11
21、/2008 11:45, Uncontrolled Copy, (c) BSI BS ISO 21218:2008 ISO 21218:2008(E) ISO 2008 All rights reserved v Introduction This International Standard is part of a family of standards for communications access for land mobiles (CALM) which determine a common architecture, network protocols and air inte
22、rface definitions for wireless communications using media such as cellular 2nd generation, cellular 3rd generation, microwaves, millimetre waves, and infrared light. Further air interfaces, referred to as communication modules, may be added at a later date. These air interfaces are designed to suppo
23、rt point-to-multipoint and point-to-point communications for roadside-to-roadside, vehicle-to-vehicle and vehicle-to-roadside links in the ITS sector. This International Standard determines the service access points for the OSI (see Clause 4) layers below the network layer, i.e. the M-SAP (see Claus
24、e 4) offered to the IME for management purposes, and the C-SAP (see Clause 4) offered to the CALM network layer for communication purposes. Licensed Copy: London South Bank University, South Bank University, 16/11/2008 11:45, Uncontrolled Copy, (c) BSI BS ISO 21218:2008 Licensed Copy: London South B
25、ank University, South Bank University, 16/11/2008 11:45, Uncontrolled Copy, (c) BSI BS ISO 21218:2008 INTERNATIONAL STANDARD ISO 21218:2008(E) ISO 2008 All rights reserved 1 Intelligent transport systems Communications access for land mobiles (CALM) Medium service access points 1 Scope This Internat
26、ional Standard determines the service access points (SAPs) of a communication interface (CI) as provided by the communication adaptation layer (CAL) for communication, and as provided by the CI management adaptation entity (CIMAE) for management of the communication interface. 2 Normative references
27、 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/IEC TR 8802-1 Information technology Telecom
28、munications and information exchange between systems Local and metropolitan area networks Specific requirements Part 1: Overview of Local Area Network Standards ISO/IEC 8802-2, Information technology Telecommunications and information exchange between systems Local and metropolitan area networks Spe
29、cific requirements Part 2: Logical link control ISO/IEC 8802-11:2005, Information technology Telecommunications and information exchange between systems Local and metropolitan area networks Specific requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specification
30、s ISO/IEC 8825-2, Information technology ASN.1 encoding rules: Specification of Packed Encoding Rules (PER) ISO 21217, Intelligent transport systems Communications access for land mobiles (CALM) Architecture 3 Terms and definitions For the purposes of this document, the terms and definitions given i
31、n ISO/IEC 8802-2, ISO/IEC 8802-11, ISO 21217 and the following apply. 3.1 CI Identifier unique identifier of a (virtual) CI 3.2 CM Protocol Layers all OSI communication protocol layers of a CALM CI that are below the CALM network layer except the CAL 3.3 COMMAND command sent to the CIMAE using the M
32、-SAP service primitive COMMAND.request Licensed Copy: London South Bank University, South Bank University, 16/11/2008 11:45, Uncontrolled Copy, (c) BSI BS ISO 21218:2008 ISO 21218:2008(E) 2 ISO 2008 All rights reserved 3.4 Communication Interface CI all parts of the OSI communication protocol stack
33、below the network layer, including the related management functions, for a specific type of communication protocol EXAMPLE An example of communication protocol is CALM IR (ISO 21214), others are shown in Figure 1. 3.5 Communication Module CM all parts of the OSI communication protocol stack below th
34、e network layer, including the related management functions comprising the blocks CMME and CMPL NOTE CMME and CMPL are shown in Figure 1. 3.6 Interface Management Entity part of the CALM management which is horizontally connected to the CIMAE 3.7 Medium physical properties of a CI used to transmit a
35、 modulated signal, e.g. wireless or on a wire 3.8 REQUEST command sent to the IME using the M-SAP service primitive REQUEST.request 3.9 Virtual Communication Interface logical entity in a CI that is associated with a peer station 3.10 CI Priority Manager logical entity in a CI that is managing prior
36、ity queues 4 Abbreviated terms NOTE See also: ISO/IEC 8802-2, ISO/IEC 8802-11, ISO 21210, ISO 21214, ISO 21217. APN Access Point Name BC-VCI VCI for transmission to the broadcast MAC address CAL Communication Adaptation Layer CEN European Committee for Standardization CI Communication Interface CIC
37、Communication interface class CI-ID CI Identifier CIMAE CI Management Adaptation Entity CIME CI Management Entity CIPL Interface Protocol Layers CM Communication Module Licensed Copy: London South Bank University, South Bank University, 16/11/2008 11:45, Uncontrolled Copy, (c) BSI BS ISO 21218:2008
38、ISO 21218:2008(E) ISO 2008 All rights reserved 3 CMME CM Management Entity CMPL CM Protocol Layers C-SAP Communication SAP as offered by the CAL to the CALM network layer DLL Data Link Layer DSRC Dedicated Short Range Communication ETSI European Telecommunications Standards Institute GC-VCI VCI for
39、transmission to a groupcast MAC address IME Interface Management Entity LSB Least Significant Bit MC-VCI VCI for transmission to a multicast (group) MAC address ME Management Entity MedID Medium identifier, part of CI-ID MIB Management Information Base M-SAP Management SAP as offered by the CIMAE to
40、wards the IME MSB Most Significant Bit OBU On-Board Unit OSI Open System Interconnection PIN Personal Identification Number RX/TX-CI CI capable of operating in receive and transmit mode RX-only-CI CI capable of operating in receive mode only RX-VCI VCI for reception SerialNumber Serial Number, part
41、of CI-ID SIM Subscriber Identity Module SNAP Sub-Network Access Protocol TDMA Time Division Multiple Access TX-only-CI CI capable of operating in transmit mode only, either broadcast or multicast TX-VCI VCI for unicast transmission UC-VCI VCI for reception from and transmission to a unicast MAC addr
42、ess (It consists of a TX-VCI and the shared RX-VCI.) VCI Virtual Communication Interface WAVE Wireless Access in Vehicular Environments (IEEE work item related to CALM M5) Licensed Copy: London South Bank University, South Bank University, 16/11/2008 11:45, Uncontrolled Copy, (c) BSI BS ISO 21218:20
43、08 ISO 21218:2008(E) 4 ISO 2008 All rights reserved 5 Requirements 5.1 Communication Module Adaptation 5.1.1 General As CALM is open for existing communication modules (CM), i.e. CMs that are not aware of CALM, and CALM-specific CMs, there is a need to adapt the interfaces of such existing CMs to th
44、ose expected by the CALM network layer and the CALM management. The task is to adapt the CM Protocol Layers (CMPL) of the OSI protocol stack of a CM to the common CALM network layer by means of a Communication Adaptation Layer (CAL), and the CM Management Entity (CMME) of the CM to the Interface Man
45、agement Entity (IME) by means of a CI Management Adaptation Entity (CIMAE). The sum of CMPL and CMME in Figure 1 is entitled Communication Module (CM). The sum of CM and CAL and CIMAE in Figure 1 is entitled Communication Interface (CI). CMME and CIMAE constitute the Communication Interface Manageme
46、nt Entity (CIME). CAL and CMPL constitute the Communication Interface Protocol Layers (CIPL). The CM Protocol Layers shall include at a minimum a physical layer (PHY), a medium access control sub-layer (MAC), and optionally a logical link control sub-layer (LLC). In the communication path, the CAL s
47、hall offer an LLC SAP (C-SAP) towards the CALM network layer, and shall serve the underlying protocol layer. In a specific implementation, the CM may include higher layers of the OSI communication protocol stack including the related management. The previously stated inclusion of higher protocol lay
48、ers shall be restricted to those communication technologies already existing and not being aware of CALM, e.g. the cellular media ISO 21212 and ISO 21213. In the management path, the CIMAE shall provide a Management SAP (M-SAP) towards the IME, and shall serve the CM and the CAL. The CI adaptation i
49、s outlined in Figure 1. Licensed Copy: London South Bank University, South Bank University, 16/11/2008 11:45, Uncontrolled Copy, (c) BSI BS ISO 21218:2008 ISO 21218:2008(E) ISO 2008 All rights reserved 5 Figure 1 Architecture This International Standard provides common basic functional specifications for the Communication Adaptation Layer and for the CI Management Adaptation Entity. It specifies both the Communication SAP (C-SAP) and the Management SAP (M-SAP). Further information m