08-30176785-DC.pdf

a Date: 22 January 2008 Origin: International Latest date for receipt of comments: 30 April 2008 Project no.: 2008/00274 Responsible committee: EPL/278 Road transport informatics Interested committees: Title: Draft BS ISO 21217 Intelligent transport systems - Communications access for land mobiles (CALM) - Architecture Supersession information: If this document is published as a standard, the UK implementation of it will supersede NONE and partially supersede. NONE If you are aware of a current national standard which may be affected, please notify the secretary (contact details below). WARNING: THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 30 April 2008. This draft is issued to allow comments from interested parties; all comments will be given consideration prior to publication. No acknowledgement will normally be sent. See overleaf for information on commenting. 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Direct tel: 020 8996 7127 Responsible Committee Secretary: Mr M S Matharu (BSI) E-mail: manjit.matharubsi-global.com Draft for Public Comment Head Office 389 Chiswick High Road London W4 4AL Telephone: +44(0)20 8996 9000 Fax: +44(0)20 8996 7001 Form 36 Version 7.0 DPC: 08/30176785 DC Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 05:38:42 GMT+00:00 2008, Uncontrolled Copy, (c) BSI b Introduction This draft standard is based on international discussions in which the UK has taken an active part. Your comments on this draft are invited and will assist in the preparation of the consequent standard. Comments submitted will be reviewed by the relevant BSI committee before sending the consensus UK vote and comments to the international secretariat, which will then decide appropriate action on the draft and the comments received. If no comments are received to the contrary, then the UK will approve this draft. If the international standard is approved, it is possible the text will be published as an identical British Standard. UK Vote Please indicate whether you consider the UK should submit a negative (with reasons) or positive vote on this draft. Submission The guidance given below is intended to ensure that all comments receive efficient and appropriate attention by the responsible BSI committee. Annotated drafts are not acceptable and will be rejected. All comments must be submitted, preferably electronically, to the Responsible Committee Secretary at the address given on the front cover. Comments should be compatible with Version 6.0 or Version 97 of Microsoft® Word for Windows, if possible; otherwise comments in ASCII text format are acceptable. Any comments not submitted electronically should still adhere to these format requirements. All comments submitted should be presented as given in the example below. Further information on submitting comments and how to obtain a blank electronic version of a comment form are available from the BSI web site at: http:/www.bsi-global.com/en/Standards-and-Publications/Current-work/DPCs/ Template for comments and secretariat observations Date: xx/xx/200x Document: ISO/DIS xxxxx 1 2 (3) 4 5 (6) (7) MB Clause No./ Subclause No./ Annex (e.g. 3.1) Paragraph/ Figure/Table/ Note (e.g. Table 1) Type of com- ment Comment (justification for change) by the MB Proposed change by the MB Secretariat observations on each comment submitted 3.1 Definition 1 ed Definition is ambiguous and needs clarifying. Amend to read . so that the mains connector to which no connection . 6.4 Paragraph 2 te The use of the UV photometer as an alternative cannot be supported as serious problems have been encountered in its use in the UK. Delete reference to UV photometer. Microsoft and MS-DOS are registered trademarks, and Windows is a trademark of Microsoft Corporation. Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 05:38:42 GMT+00:00 2008, Uncontrolled Copy, (c) BSI THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH. IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS. RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION. DRAFT INTERNATIONAL STANDARD ISO/DIS 21217 © International Organization for Standardization, 2008 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION ISO/TC 204 Voting begins on: 2008-01-18 Secretariat: ANSI Voting terminates on: 2008-06-18 Intelligent transport systems Communications access for land mobiles (CALM) Architecture Systèmes intelligents de transport Accès des communications pour les mobiles terrestres (CALM) Architecture ICS 03.220.01; 35.240.60 In accordance with the provisions of Council Resolution 15/1993 this document is circulated in the English language only. Conformément aux dispositions de la Résolution du Conseil 15/1993, ce document est distribué en version anglaise seulement. To expedite distribution, this document is circulated as received from the committee secretariat. ISO Central Secretariat work of editing and text composition will be undertaken at publication stage. 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Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 05:38:42 GMT+00:00 2008, Uncontrolled Copy, (c) BSI ISO/DIS 21217 © ISO 2007 All rights reserved iii Contents Page Forewordv Introductionv 1 Scope.1 2 Conformance.1 3 Normative references .1 4 Terms and definitions.2 5 Symbols and abbreviated terms3 6 Requirements5 6.1 Principles for CALM International Standards.5 6.2 Mobile links .5 6.3 Services.6 6.3.1 Communication network service.6 6.3.2 Communication service6 6.3.3 User service.6 6.4 Channel types .7 6.5 Communication classes and scenarios8 6.5.1 Communication classes.8 6.5.2 Communication scenarios .9 6.6 OSI model13 6.6.1 General 13 6.6.2 Basic simple architecture.13 6.6.3 Simple architecture with SAPs and applications .14 6.6.4 Simple architecture with focus on separation of application types15 6.6.5 Data flow16 6.7 CALM communications kernel.18 6.8 CALM communication interface 19 6.9 CALM communication layer elements.20 6.9.1 Physical layer20 6.9.2 Medium access control sub-layer20 6.9.3 Logical link control sub-layer 20 6.9.4 Communication adaptation layer.20 6.9.5 Network layer 21 6.9.6 Transport layer21 6.9.7 CALM service layer.21 6.9.8 CALM aware applications.22 6.9.9 Non-CALM aware applications.22 6.10 CALM management elements22 6.10.1 General 22 6.10.2 Interface management entity23 6.10.3 Networking management entity.23 6.10.4 CALM management entity23 6.11 Security23 6.11.1 CALM security.23 6.11.2 End-to-end security 23 6.11.3 Medium-specific security .23 7 Test methods.24 8 Marking, labelling and packaging24 DRAFT 2008 Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 05:38:42 GMT+00:00 2008, Uncontrolled Copy, (c) BSI ISO/DIS 21217 iv © ISO 2007 All rights reserved 9 Declaration of patents and intellectual property 24 Annex A (informative) Implementations.28 A.1 General 28 A.2 Advanced implementation28 A.2.1 Building blocks .28 A.2.2 Local network29 A.2.3 Routers 29 A.2.4 Hosts / computers.29 A.2.5 Management29 A.2.6 OEM devices29 A.3 Simple implementation.30 A.4 Single-box implementation 30 A.5 OEM implementation 31 Bibliography.32 DRAFT 2008 Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 05:38:42 GMT+00:00 2008, Uncontrolled Copy, (c) BSI ISO/DIS 21217 © ISO 2007 All rights reserved v 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 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 take 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 is 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 possibility 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 21217 was prepared by Technical Committee ISO/TC 204, Intelligent Transport Systems, Subcommittee SC , . This second/third/. edition cancels and replaces the first/second/. edition (), clause(s) / subclause(s) / table(s) / figure(s) / annex(es) of which has / have been technically revised. DRAFT 2008 Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 05:38:42 GMT+00:00 2008, Uncontrolled Copy, (c) BSI ISO/DIS 21217 vi © ISO 2007 All rights reserved Introduction 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 bearer technologies, e.g. cellular 2nd generation, cellular 3rd generation, infra-red, 5 GHz micro-wave, and 60 GHz millimetre-wave and mobile wireless broadband communications. Other wireless communications interfaces may be added at a later date. CALM wireless communications interfaces are designed to provide broadcast, point-point, vehicle-vehicle, and vehicle-point communications in the ITS Sector. This International Standard describes the architectural framework for common usage by the CALM communications interface definition International Standards as described in ISO 21218:2008, and network protocol International Standards ISO 21210:2008 and ISO 29281:2008. The requirements for transmission of information over large distances using wireless technology are functionally very different from the requirements for European DSRC. Large volumes of data are required for purposes such as safety, traffic information and -management, video downloads to vehicles for tourist information and entertainment and navigation-system-updates, etc. In order to support such services, mobile units need to be able to communicate over longer ranges with access points/base stations, and the system must be able to hand over sessions from one access point/base station to another. CALM International Standards are explicitly designed to enable quasi-continuous communications 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 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