ISO/IEC 17821:2015

Information technology — Specification of low power wireless mesh network over channel-hopped TDMA links

ISO/IEC 17821:2015 defines the network specification for devices, which are operated on IEEE Std. 802.15.4-2011 PHY, capable to support the channel-hopped TDMA links of the DSME MAC of IEEE Std. 802.15.4e-2012, to provide low-cost communication network that allows reliable, deterministic-latency, and scalable wireless mesh connectivity. This International Standard provides the following: - DSME MAC link control; - unbalanced cluster-tree based network formation; - directional multiple grades mesh connection; - link-path routing and data forwarding; - link and link-path maintenance.

Technologies de l'information — Spécification des réseaux maillés sans fil à faible puissance par liens AMRT à saut de canaux

General Information

• Status: Published
• Publication Date: 12-Apr-2015
• ICS: 35.110 - Networking
• Technical Committee: ISO/IEC JTC 1/SC 6 - Telecommunications and information exchange between systems
• Drafting Committee: ISO/IEC JTC 1/SC 6 - Telecommunications and information exchange between systems
• Current Stage: 9093 - International Standard confirmed
• Start Date: 23-May-2025
• Completion Date: 24-May-2025

Standards Content (Sample)

INTERNATIONAL ISO/IEC
STANDARD 17821
First edition
2015-04-15
Information technology — Specification
of low power wireless mesh network
over channel-hopped TDMA links
Technologies de l’information — Spécification des réseaux maillés
sans fil à faible puissance par liens AMRT à saut de canaux
Reference number
©
ISO/IEC 2015
© ISO/IEC 2015
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.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO/IEC 2015 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
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
5.4.1 Link network formation . 5
5.4.2 Link connection . 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 .12
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
© ISO/IEC 2015 – All rights reserved iii

8.1 General link network frame format .43
8.1.1 Frame Control field .44
8.1.2 Destination Address field .44
8.1.3 Source Address field .45
8.1.4 Destination IEEE Address field .45
8.1.5 Source IEEE Address field .45
8.1.6 Link Management subframe field.45
8.1.7 Link Network Management subframe field .45
8.1.8 Frame Payload field .45
8.2 Data frames .45
8.3 Link management command frames.46
8.3.1 Link Management Command Frame Identifier field .46
8.3.2 Sequence Number field .46
8.3.3 Length of Link Management Command field .47
8.3.4 Link Management Command Payload field .47
8.4 Link network management command frames .48
8.4.1 Link Network Management Command Frame Identifier field .49
8.4.2 Sequence Number field .49
8.4.3 Length of Link Network Management Command Frame field .50
8.4.4 Link Network Management Command Payload field .50
9 Link network constants, information bases, and status values .52
9.1 Link network constants .52
9.2 DSME MAC link Information base .52
9.3 Link network status values .57
Annex A (informative) Enhanced MAC for reliable services .58
Annex B (informative) Authentication and Key Establishment Protocols (AKEP) .60
Bibliography .65
iv © ISO/IEC 2015 – All rights reserved

Foreword
ISO (the International Organization for Standardization) and
...