TECHNICAL ISO/IEC TR REPORT 22512 First edition 2017-12 Information technology Telecommunications and information exchange between systems Guidelines for the implementation of IS0/IEC 17982:2012 Technologies de I'information - Teleinformatique - Lignes directrices pour la mise en application de I'IS0/IEC 17982:2012 Reference number IEC ISO/IEC TR22512:2017(E) s @IS0/IEC2017 IS0/IEC TR 22512:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0/IEC 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. IsO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org ii @ IS0/IEC 2017 - All rights reserved IS0/IEC TR 22512:2017(E) Contents Page Foreword ..iv Introduction. 1 Scope.. 2 Normative reference 3 Terms and definitions 4 Implementation approach .1 4.1 TDS number and sequence number .1 4.2 CRC .2 4.3 Segmentation and reassembly 2 4.4 Randomnumber. ..3 4.5 RFU handling standard way 3 4.6 RFU handling proprietary way ..3 4.7 Collision avoidance. .3 4.8 Identifying the P-PDUs ..4 4.9 PHYUser. .5 Bibliography 6 @ IS0/IEC 2017 - All rights reserved iii