BS ISO 29283-2011 ITS CALM mobile wireless broadband applications using communications in accordance with IEEE 802 20《符合IEEE 802 20标准通信要求的ITS CALM 移动无线宽带的应用》.pdf
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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 29283:2011ITS CALM Mobile WirelessBroadband applications usingCommunications in accordancewith IEEE 802.20BS ISO 29283:2011 BRITISH STANDARDNational forewordThis British S
2、tandard is the UK implementation of ISO 29283:2011.The UK participation in its preparation was entrusted to TechnicalCommittee EPL/278, Road transport informatics.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to inc
3、lude all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 64408 5ICS 03.220.01; 35.240.60Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStanda
4、rds Policy and Strategy Committee on 31 May 2011.Amendments issued since publicationDate Text affectedBS ISO 29283:2011Reference numberISO 29283:2011(E)ISO 2011INTERNATIONAL STANDARD ISO29283First edition2011-02-11ITS CALM Mobile Wireless Broadband applications using Communications in accordance wit
5、h IEEE 802.20 Applications ITS CALM mobiles sans fil large bande utilisant les communications conformes lIEEE 802.20 BS ISO 29283:2011ISO 29283:2011(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shal
6、l not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area.
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8、SO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2011 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any fo
9、rm or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09
10、 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2011 All rights reservedBS ISO 29283:2011ISO 29283:2011(E) ISO 2011 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member
11、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
12、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 Directive
13、s, 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 c
14、asting 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 29283 was prepared by Technical Committee ISO/TC 204, Intelligent transport system
15、s. BS ISO 29283:2011ISO 29283:2011(E) iv ISO 2011 All rights reservedIntroduction 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 a set of air interface definitions
16、 for wireless communications using a number of wireless media, including cellular second generation, cellular third generation, 5 GHz, millimetre, infra-red communications, and mobile wireless broadband (MWB), over packet-based networks. The CALM architecture is also designed to include short range,
17、 short duration, low latency communication systems such as European Dedicated Short-Range Communications (DSRC) and North American Wireless Access in Vehicular Environments (WAVE) based on IEEE 802.11. It is anticipated that other air interfaces will be added in the future. Generally speaking, the C
18、ALM architecture is designed to include air interfaces that provide some subset of point-to-point, vehicle-to-vehicle, and vehicle-to-point communications over packet-based networks in the ITS Sector. In particular, this International Standard provides additional specifications which wireless device
19、s adhering to the mobile wireless broadband IEEE 802.20 techniques standard must also meet to be CALM compliant. 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-sy
20、stem-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 standards are explicitly designed to enable qua
21、si-continuous data communications as well as data communications of protracted duration between vehicles and service providers, and between vehicles. It is important to note that the CALM architecture is specifically designed to support packet-based communications; support for circuit-switched commu
22、nications is not included. 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 that can be included in a CALM system. Selection policies are supported
23、that include user preferences and media capabilities in making decisions as to which media to use for a particular session, and when to hand over between media or between service providers on the same medium. These handover mechanisms are defined within the CALM architecture International Standard (
24、ISO 21217), the CALM IPv6 Networking for internet connectivity International Standard (ISO 21210), the CALM medium service access points International Standard (ISO 21218) and the CALM communication and station management International Standard (ISO 24102). Handovers between access points using the
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