ISO/IEC INTERNATIONAL STANDARD 17821 First edition 2015-04-15 Information technology Specification of low power wireless mesh network over channel-hopped TDMA links Technologies de I'information - Spécification des réseaux mailles sans fil a faible puissance par liens AMRT a saut de canaux Reference number ISO/IEC 17821:2015(E) TE( . International Organization for Standardization dardization 5956617 @IS0/IEC2015 ted without license from IHS IS0/IEC 17821:2015(E) COPYRIGHTPROTECTEDDOCUMENT @IS0/IEC2015 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISOcopyrightoffice Case postale 56:CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland Prganizationfor Standardization icene-zZhejag nsite o StandareRalS Ss6JEC 2015 - All rights reserved Not for Resale, 2015/6/29 09:16:07 networking permitted without license from IHS IS0/IEC 17821:2015(E) Contents Page Foreword ..V Introduction. ...vi 1 Scope 2 Normative references 3 Terms and definitions 4 Abbreviations. ..2 5 General description .3 5.1 General. .3 5.2 Components of the LPWMN .3 5.3 Architecture of the LPWMN .4 5.4 Functional overview.. 5.4.1 Link network formation ..5 5.4.2 Linkconnection ..6 5.4.3 Unbalanced cluster-tree addressing 7 5.4.4 Routing ..8 6 Functional description ..9 6.1 Starting the LPWMN. .9 6.1.1 Starting a link network. .9 6.1.2 Starting a router ..10 6.1.3 Starting a device .11 6.2 Joining a link network .12 6.2.1 Device procedure. ..12 6.2.2 Router procedure 6.3 Leaving a link network ..13 6.4 Address assignment with an unbalanced cluster-tree structure .14 6.5 DSME MAC link and link-path .15 6.5.1 Establishing a link-path .15 6.5.2 Maintaining a link-path .16 6.5.3 Routing a link-path. .17 6.6 Data services. .19 6.6.1 General. .19 6.6.2 DLN sublayer data service 19 6.6.3 DLC sublayer data service 20 6.6.4 Data reception. .20 7 LPWMN services. .21 7.1 LPWMN management services. 21 7.1.1 Primitives for link network formation 22 7.1.2 Primitives for link network joining as a router 24 7.1.3 Primitives for link network joining as a device .25 7.1.4 Primitives for the DLIB management. .26 7.1.5 Primitives for link network resources management 29 7.2 LPWMN link management services 30 7.2.1 Primitives for link establishment 30 7.2.2 Primitives for link release... 32 7.2.3 Primitives for link management. 34 7.3 LPWMN data services .35 7.3.1 Primitives for data service on a CAP link. 35 7.3.2 Primitives for data service on a shared GTS link .37 7.3.3 Primitives for data service on a dedicated link path ..39 7.3.4 Primitives for data service through DLN sublayer ..41 8 LPWMN frame formats .43 iii Isee=Zhejang Insttute of Standardization 5956617 ted withoutlicensefromIHS Not for Resale, 2015/6/29 09:16:07