Static Context Header Compression (SCHC) over LoRaWAN
draft-ietf-lpwan-schc-over-lorawan-00
lpwan Working Group N. Sornin, Ed.
Internet-Draft M. Coracin
Intended status: Informational Semtech
Expires: October 21, 2019 I. Petrov
Acklio
A. Yegin
Actility
J. Catalano
Kerlink
V. Audebert
EDF R&D
April 19, 2019
Static Context Header Compression (SCHC) over LoRaWAN
draft-ietf-lpwan-schc-over-lorawan-00
Abstract
The Static Context Header Compression (SCHC) specification describes
generic header compression and fragmentation techniques for LPWAN
(Low Power Wide Area Networks) technologies. SCHC is a generic
mechanism designed for great flexibility, so that it can be adapted
for any of the LPWAN technologies.
This document provides the adaptation of SCHC for use in LoRaWAN
networks, and provides elements such as efficient parameterization
and modes of operation.
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This Internet-Draft will expire on October 21, 2019.
Sornin, et al. Expires October 21, 2019 [Page 1]
Internet-Draft SCHC-over-LoRaWAN April 2019
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Static Context Header Compression Overview . . . . . . . . . 3
4. LoRaWAN Architecture . . . . . . . . . . . . . . . . . . . . 4
4.1. Device classes (A, B, C) and interactions . . . . . . . . 5
4.2. Device addressing . . . . . . . . . . . . . . . . . . . . 6
4.3. General Message Types . . . . . . . . . . . . . . . . . . 7
4.4. LoRaWAN MAC Frames . . . . . . . . . . . . . . . . . . . 7
5. SCHC over LoRaWAN . . . . . . . . . . . . . . . . . . . . . . 7
5.1. Rule ID management . . . . . . . . . . . . . . . . . . . 7
5.2. IID computation . . . . . . . . . . . . . . . . . . . . . 8
5.3. No compression packets are sent using Rule ID 7. . . . . 8
5.4. Fragmentation . . . . . . . . . . . . . . . . . . . . . . 8
5.4.1. Uplink fragmentation: From device to gateway . . . . 8
5.4.2. Downlinks: From gateway to device . . . . . . . . . . 9
6. Security considerations . . . . . . . . . . . . . . . . . . . 13
7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 13
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 13
8.1. Normative References . . . . . . . . . . . . . . . . . . 13
8.2. Informative References . . . . . . . . . . . . . . . . . 13
Appendix A. Examples . . . . . . . . . . . . . . . . . . . . . . 14
Appendix B. Note . . . . . . . . . . . . . . . . . . . . . . . . 14
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 14
1. Introduction
The Static Context Header Compression (SCHC) specification
[I-D.ietf-lpwan-ipv6-static-context-hc] describes generic header
compression and fragmentation techniques that can be used on all
LPWAN (Low Power Wide Area Networks) technologies defined in
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