1、BS ISO21212:2008ICS 03.220.01; 35.240.60NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDIntelligent transportsystems Communicationsaccess for land mobiles(CALM) 2G CellularsystemsThis British Standardwas published underthe authority of theStandards Policy andStr
2、ategy Committee on 30November 2008 BSI 2008ISBN 978 0 580 55719 4Amendments/corrigenda issued since publicationDate CommentsBS ISO 21212:2008National forewordThis British Standard is the UK implementation of ISO 21212:2008.The UK participation in its preparation was entrusted to TechnicalCommittee E
3、PL/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 a British Stan
4、dard cannot confer immunityfrom legal obligations.BS ISO 21212:2008Reference numberISO 21212:2008(E)ISO 2008INTERNATIONAL STANDARD ISO21212First edition2008-11-01Intelligent transport systems Communications access for land mobiles (CALM) 2G Cellular systems Systmes de transport intelligents Accs de
5、communication pour services mobiles terrestres (CALM) Systmes cellulaires 2G BS ISO 21212:2008ISO 21212:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces whi
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10、org Published in Switzerland ii ISO 2008 All rights reservedBS ISO 21212:2008ISO 21212:2008(E) ISO 2008 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Conformance. 1 3 Normative references . 1 4 Terms and definitions. 2 5 Abbreviated terms 2 6 Requirements 3 6.1 Adopti
11、on of other standards and internationally adopted practices 3 6.2 Non packet-switching cellular networks 3 6.3 CALM architecture 3 6.4 CALM networking protocols 3 6.5 CALM service access points . 3 6.6 CALM interface manager . 3 6.7 CALM using public wireless networks . 4 6.8 Establishment of a medi
12、um specific session 4 6.9 Interface medium management. 4 7 Medium access control (MAC) 4 7.1 CALM 2G/2.5G cellular communications MMAE service primitives 4 7.2 CALM 2G/2.5G cellular communications MMAE functionality. 6 8 Test and conformance requirements 6 9 Marking, labelling and packaging . 7 10 D
13、eclaration of patents and intellectual property. 7 BS ISO 21212:2008ISO 21212:2008(E) iv ISO 2008 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 Stand
14、ards is normally carried out 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 ta
15、ke part in the work. ISO collaborates 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 i
16、s to prepare International 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 possibili
17、ty that some of the elements 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 21212 was prepared by Technical Committee ISO/TC 204, Intelligent transport systems. BS ISO 21212:2008ISO 21212:2008(E) ISO 2008 All
18、 rights reserved vIntroduction This International Standard is part of a family of International Standards for CALM (“Communications Access for Land Mobiles”) which specify a common architecture, network protocols and communications interface definitions for wireless communications using different be
19、arer technologies, e.g. second and third generation cellular, 5 GHz microwave, 60 GHz millimetre-wave, mobile wireless broadband, and Infra-red communications. Other air interfaces may be added at a later date. These wireless communications interfaces are designed to provide parameters and protocols
20、 for broadcast, point-point, vehicle-vehicle, and vehicle-point communications in the ITS Sector. This International Standard determines the air interface parameters for CALM communications via 2G/2.5G cellular networks. CALM standards are explicitly designed to enable quasi-continuous communication
21、s as well as communications of protracted duration between vehicles and service providers, and between vehicles. The fundamental advantage of the CALM concept over traditional systems is the ability to support media independent handover (MIH), also referred to as heterogeneous handover, between the
22、various media supported by CALM (e.g., cellular, microwave, mobile wireless broadband, infra-red, DSRC). Selection policies are supported that include user preferences and media capabilities in making decisions as to which media to use for a particular session, and when to handover between media or
23、between service providers on the same medium. These handover mechanisms are defined within the CALM architecture International Standard (ISO 21217), the CALM networking protocols International Standard (ISO 21210), the CALM medium service access points International Standard (ISO 21218) and the CALM
24、 management International Standard (ISO 24102). Handovers between access points using the same technology and service provider use mechanisms that are defined within the particular medium specific CALM Standard. ITS applications include the update of roadside telemetry and messaging, internet, image
25、 and video transfer, infotainment, multimedia multicast, traffic management, monitoring and enforcement in mobile situations, route guidance, car-to-car and point-to-multipoint safety messaging, maintenance management, and “yellow page” services among others. This International Standard provides def
26、initions and procedures for the establishment and maintenance of an ITS communications session within a CALM system environment using 2G/2.5G cellular communications. BS ISO 21212:2008BS ISO 21212:2008INTERNATIONAL STANDARD ISO 21212:2008(E) ISO 2008 All rights reserved 1Intelligent transport system
27、s Communications access for land mobiles (CALM) 2G Cellular systems 1 Scope This International Standard determines the air interface for second generation (2G) cellular networks and 2G systems (e.g. using WAP and I-Mode type protocols) to be compliant to CALM, i.e., requirements that must be met bef
28、ore a 2G system can be incorporated into a CALM system. In particular, this International Standard specifies protocols and parameters that 2G systems shall include to support prolonged, long-range, high data rate wireless communication links in ITS environments where heterogeneous handovers or media
29、 independent handovers (MIH) are either necessary to maintain the link, or desirable as determined by media selection policies. This International Standard provides protocols and parameters for long range, medium speed wireless communications in the ITS sector using second generation cellular commun
30、ications. Wherever practicable, this International Standard has been developed by reference to suitable extant standards, adopted by selection. Required regional variations are provided. Specifically, for this International Standard, extant 2G systems, as defined by various international and nationa
31、l standards, are adopted by reference. Application-specific upper layers are not included in this International Standard, but will be driven by application standards (which may not be technology specific). 2 Conformance In order to claim conformance with this International Standard, cellular communi
32、cation shall be established in full compliance with local telecommunications procedures and protocols for the appropriate 2G/2.5G Standards, and shall comply with the requirements of ISO 21210, ISO 21217, ISO 21218 and ISO 24102 (see Clause 3). 3 Normative references The following referenced documen
33、ts 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 21210, Intelligent transport systems Communications access for land mobiles (
34、CALM) Networking Protocols ISO 21217, Intelligent transport systems Communications access for land mobiles (CALM) Architecture ISO 21218, Intelligent transport systems Communications access for land mobiles (CALM) Medium service access points ISO 24102, CALM Management BS ISO 21212:2008ISO 21212:200
35、8(E) 2 ISO 2008 All rights reservedISO 25111, CALM using Public Networks General requirements ANSI/TIA-136-A, Mobile Station-Base Station Compatibility Standard for Wideband Spread Spectrum Cellular Systems ARIB RCR STD-27, Personal Digital Cellular (PDC) Telecommunication System (Fascicle 1) TIA/EI
36、A/IS-54-C, Cellular System Dual-Mode Mobile StationBase Station Compatibility Standard TIA-95-B, Mobile Station-Base Station Compatibility Standard for Wideband Spread Spectrum Cellular Systems 3GPP/3GPP2, 3GPP/3GPP2 Standards as they relate to 2G/2.5G 4 Terms and definitions For the purposes of thi
37、s document, the terms and definitions given in ISO 21217 apply. 5 Abbreviated terms Abbreviated terms used in this document are listed below. Reference should also be made to ISO 14817. ANSI American national standards institute ARIB association of radio industries and businesses CALM communications
38、 access for land mobiles CDMA code division multiple access DSRC dedicated short range communication EIA electronic industries association EGPRS enhanced global packet radio service GSM global system for mobile communications MMAE media management adaption entity PDC personal digital cellular TIA te
39、lecommunication industry association WAP wireless application protocol 3GPP third generation partnership project 3GPP2 third generation partnership project two BS ISO 21212:2008ISO 21212:2008(E) ISO 2008 All rights reserved 36 Requirements 6.1 Adoption of other standards and internationally adopted
40、practices Equipment and systems complying to this International Standard shall operate in the environment of, and to the parameters defined for, 2G and 2.5G systems in one the following sets of standards and internationally adopted practices: 3GPP (including GSM/EGPRS) active specifications TIA-95-B
41、 (cdmaOne) ANSI/TIA-136-A TIA/EIA/IS-54-C ARIB PDC RCR Standard No.27 3GPP2 (for CDMA2000-1x, which is considered to be 2.5G in some countries). The equipment and systems shall operate within the limits and parameters defined in regional and national regulations. 6.2 Non packet-switching cellular ne
42、tworks Non packet-switched cellular networks shall not be used for CALM communication sessions, except to transmit non time-critical emergency messages from the vehicle to predetermined numbers or assistance centres. NOTE “Non time critical” in this context does not imply that it is not important to
43、 transmit the message as quickly as possible, but implies that the time taken to establish communication with the target number is non time critical and can follow predetermined dial up protocols according to normal dialling procedures. 6.3 CALM architecture Equipment and systems complying to this I
44、nternational Standard shall operate in the environment of, and to the parameters defined within, ISO 21217. 6.4 CALM networking protocols Equipment and systems complying to this International Standard shall operate in the environment of, and to the parameters defined within, ISO 21210. 6.5 CALM serv
45、ice access points Equipment and systems complying to this International Standard shall operate in the environment of, and to the parameters defined within, ISO 21218. 6.6 CALM interface manager Equipment and systems complying to this International Standard shall operate in the environment of, and to
46、 the parameters defined within, ISO 24102. BS ISO 21212:2008ISO 21212:2008(E) 4 ISO 2008 All rights reserved6.7 CALM using public wireless networks Equipment and systems complying to this International Standard shall operate in the environment of, and to the parameters defined within, ISO 25111. 6.8
47、 Establishment of a medium specific session 6.8.1 “User Controlled” sessions Equipment and systems complying to this International Standard shall utilise procedures determined in ISO 25111, 6.1.3. 6.8.2 Establishment and termination of a “Continuous” session Equipment and systems complying to this I
48、nternational Standard shall utilise procedures determined in ISO 25111, 6.1.4. 6.8.3 Establishment and termination of a “Time Controlled” session Equipment and systems complying to this International Standard shall utilise procedures determined in ISO 25111, 6.1.5. 6.8.4 Establishment and terminatio
49、n of a “User Controlled” session Equipment and systems complying to this International Standard shall utilise procedures determined in ISO 25111, 6.1.6. 6.9 Interface medium management Shall be conducted in accordance with the specifications of ISO 25111, 6.5 to 6.7. 7 Medium access control (MAC) Shall be conducted in accordance within the specifications of ISO 25111, Clause 7. 7.1 CALM 2G/2.5G cellular communications MMAE service primitives A CALM compliant 2G/2.5G cellular communications MMAE shall support
