SCHC over Sigfox LPWAN
draft-ietf-lpwan-schc-over-sigfox-04
lpwan Working Group JC. Zuniga
Internet-Draft SIGFOX
Intended status: Informational C. Gomez
Expires: May 4, 2021 Universitat Politecnica de Catalunya
L. Toutain
IMT-Atlantique
October 31, 2020
SCHC over Sigfox LPWAN
draft-ietf-lpwan-schc-over-sigfox-04
Abstract
The Generic Framework for Static Context Header Compression and
Fragmentation (SCHC) specification describes two mechanisms: i) an
application header compression scheme, and ii) a frame fragmentation
and loss recovery functionality. SCHC offers a great level of
flexibility that can be tailored for different Low Power Wide Area
Network (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
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on May 4, 2021.
Copyright Notice
Copyright (c) 2020 IETF Trust and the persons identified as the
document authors. All rights reserved.
Zuniga, et al. Expires May 4, 2021 [Page 1]
Internet-Draft SCHC over Sigfox LPWAN October 2020
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
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. ACK on Downlink . . . . . . . . . . . . . . . . . . . . . 7
4.5. SCHC Rules . . . . . . . . . . . . . . . . . . . . . . . 7
4.6. Fragmentation . . . . . . . . . . . . . . . . . . . . . . 7
4.6.1. Uplink Fragmentation . . . . . . . . . . . . . . . . 8
4.6.2. Downlink Fragmentation . . . . . . . . . . . . . . . 11
4.7. Padding . . . . . . . . . . . . . . . . . . . . . . . . . 12
5. Security considerations . . . . . . . . . . . . . . . . . . . 12
6. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 13
7. References . . . . . . . . . . . . . . . . . . . . . . . . . 13
7.1. Normative References . . . . . . . . . . . . . . . . . . 13
7.2. Informative References . . . . . . . . . . . . . . . . . 13
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 13
1. Introduction
The Generic Framework for Static Context Header Compression and
Fragmentation (SCHC) specification [RFC8724] describes two
mechanisms: i) an application header compression scheme, and ii) a
frame fragmentation and loss recovery functionality. Both can be
used on top of all the four LWPAN technologies defined in [RFC8376] .
These LPWANs 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 technologies. Even though there are a great number of
similarities between them, some differences exist with respect to the
transmission characteristics, payload sizes, etc. Hence, there are
Show full document text