SCHC over Sigfox LPWAN
draft-ietf-lpwan-schc-over-sigfox-02
lpwan Working Group JC. Zuniga
Internet-Draft SIGFOX
Intended status: Informational C. Gomez
Expires: November 16, 2020 Universitat Politecnica de Catalunya
L. Toutain
IMT-Atlantique
May 15, 2020
SCHC over Sigfox LPWAN
draft-ietf-lpwan-schc-over-sigfox-02
Abstract
The Generic Framework for Static Context Header Compression and
Fragmentation (SCHC) specification describes both, an application
header compression scheme, and a frame fragmentation and loss
recovery functionality for Low Power Wide Area Network (LPWAN)
technologies. SCHC offers a great level of flexibility that can be
tailored for different LPWAN technologies.
The present document provides the optimal parameters and modes of
operation when SCHC is implemented over a Sigfox LPWAN. This set of
parameters are also known as a "SCHC over Sigfox profile."
Status of This Memo
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Copyright Notice
Copyright (c) 2020 IETF Trust and the persons identified as the
document authors. All rights reserved.
Zuniga, et al. Expires November 16, 2020 [Page 1]
Internet-Draft SCHC over Sigfox LPWAN May 2020
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. SCHC: Generic Framework for Static Context Header Compression
and Fragmentation . . . . . . . . . . . . . . . . . . . . . . 3
4. SCHC over Sigfox . . . . . . . . . . . . . . . . . . . . . . 3
4.1. Network Architecture . . . . . . . . . . . . . . . . . . 3
4.2. Uplink . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.3. Downlink . . . . . . . . . . . . . . . . . . . . . . . . 6
4.4. SCHC Rules . . . . . . . . . . . . . . . . . . . . . . . 6
4.5. Fragmentation . . . . . . . . . . . . . . . . . . . . . . 7
4.5.1. Uplink Fragmentation . . . . . . . . . . . . . . . . 7
4.5.2. Downlink Fragmentation . . . . . . . . . . . . . . . 10
4.6. Padding . . . . . . . . . . . . . . . . . . . . . . . . . 11
5. Security considerations . . . . . . . . . . . . . . . . . . . 11
6. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 11
7. References . . . . . . . . . . . . . . . . . . . . . . . . . 12
7.1. Normative References . . . . . . . . . . . . . . . . . . 12
7.2. Informative References . . . . . . . . . . . . . . . . . 12
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 12
1. Introduction
The Generic Framework for Static Context Header Compression and
Fragmentation (SCHC) specification [RFC8724] defines both, a higher
layer header compression scheme and a fragmentation and loss recovery
functionality. Both can be used on top of all the LWPAN systems
defined in [RFC8376] . These LPWAN systems have similar
characteristics such as star-oriented topologies, network
architecture, connected devices with built-in applications, etc.
SCHC offers a great level of flexibility to accommodate all these
LPWAN systems. Even though there are a great number of similarities
between LPWAN technologies, some differences exist with respect to
the transmission characteristics, payload sizes, etc. Hence, there
are optimal parameters and modes of operation that can be used when
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