SCHC over Sigfox LPWAN
draft-zuniga-lpwan-schc-over-sigfox-05

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Last updated 2018-11-05
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lpwan Working Group                                           JC. Zuniga
Internet-Draft                                                    SIGFOX
Intended status: Informational                                  C. Gomez
Expires: May 9, 2019                Universitat Politecnica de Catalunya
                                                              L. Toutain
                                                          IMT-Atlantique
                                                       November 05, 2018

                         SCHC over Sigfox LPWAN
                 draft-zuniga-lpwan-schc-over-sigfox-05

Abstract

   The Static Context Header Compression (SCHC) specification describes
   a header compression scheme and a fragmentation 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.

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
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   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on May 9, 2019.

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   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

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   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.  Static Context Header Compression . . . . . . . . . . . . . .   3
   4.  SCHC over Sigfox  . . . . . . . . . . . . . . . . . . . . . .   4
     4.1.  SCHC Rules  . . . . . . . . . . . . . . . . . . . . . . .   4
     4.2.  Packet processing . . . . . . . . . . . . . . . . . . . .   4
   5.  Fragmentation . . . . . . . . . . . . . . . . . . . . . . . .   4
     5.1.  Fragmentation headers . . . . . . . . . . . . . . . . . .   5
     5.2.  Uplink fragment transmissions . . . . . . . . . . . . . .   5
       5.2.1.  Uplink No-ACK mode  . . . . . . . . . . . . . . . . .   5
       5.2.2.  Uplink ACK-Always mode  . . . . . . . . . . . . . . .   6
       5.2.3.  Uplink ACK-on-Error mode  . . . . . . . . . . . . . .   6
     5.3.  Downlink fragment transmissions . . . . . . . . . . . . .   6
   6.  Padding . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
   7.  Security considerations . . . . . . . . . . . . . . . . . . .   8
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   8
   9.  Informative References  . . . . . . . . . . . . . . . . . . .   8
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   The Static Context Header Compression (SCHC) specification
   [I-D.ietf-lpwan-ipv6-static-context-hc] defines a header compression
   scheme and a fragmentation 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
   SCHC is used on top of a specific LPWAN.

   This document describes the recommended parameters and modes of
   operation to be used when SCHC is implemented over a Sigfox LPWAN.

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