ISO INTERNATIONAL STANDARD 21216 Second edition 2012-03-15 Intelligent transport systems Communication access for land mobiles (CALM) Millimetre wave air interface Systemes intelligents de transport -Acces aux communications pour mobiles de terrain (CALM) - Interface d'air a ondes millimetriques Reference number ISO 21216:2012(E) ISO @ ISO 2012 py IHS under lic r networking permitted without license from IHS Not for Resale ISO21216:2012(E) COPYRIGHTPROTECTEDDOCUMENT ISO2012 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's 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 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2012 -All rights reserved No reproductic etworking permitted without license from IHS Not for Resale ISO 21216:2012(E) Contents Page Foreword .iv Introduction 1 Scope. 2 Conformance 3 Normative references 4 Terms and definitions. 5 Symbols and abbreviated terms 6 Requirements. 3 6.1 Architecture 3 6.2 Adoption of other standards and internationally adopted practices 6.3 Physical (PHY) layer parameters.. 6.4 Regional and/or national limitations on radio parameters.. 6.5 Provision of PHY Communications Interface (Cl) parameters. 6.6 Over the air transaction protocols..... 5 Annex A (informative) ITU Region 1 Annex B (informative) ITU Region 2 8 Annex C (informative) ITU Region 3 ... Bibliography.. ili se with I icense from IHS Not for Resale