Static Context Header Compression (SCHC) over LoRaWAN
draft-ietf-lpwan-schc-over-lorawan-14
Document | Type | Active Internet-Draft (lpwan WG) | ||
---|---|---|---|---|
Authors | Olivier Gimenez , Ivaylo Petrov | |||
Last updated | 2021-01-27 (latest revision 2021-01-25) | |||
Replaces | draft-petrov-lpwan-ipv6-schc-over-lorawan | |||
Stream | Internent Engineering Task Force (IETF) | |||
Intended RFC status | Proposed Standard | |||
Formats | plain text pdf htmlized (tools) htmlized bibtex | |||
Reviews | ||||
Stream | WG state | Submitted to IESG for Publication | ||
Document shepherd | Dominique Barthel | |||
Shepherd write-up | Show (last changed 2020-10-06) | |||
IESG | IESG state | RFC Ed Queue | ||
Action Holders |
(None)
|
|||
Consensus Boilerplate | Yes | |||
Telechat date | ||||
Responsible AD | Éric Vyncke | |||
IESG note | AD has checked with authors whether the Lora Alliance has reviewed this document: yes, review done. | |||
Send notices to | Dominique Barthel <dominique.barthel@orange.com> | |||
IANA | IANA review state | IANA OK - No Actions Needed | ||
IANA action state | No IANA Actions | |||
RFC Editor | RFC Editor state | EDIT | ||
Details |
lpwan Working Group O. Gimenez, Ed. Internet-Draft Semtech Intended status: Standards Track I. Petrov, Ed. Expires: July 29, 2021 Acklio January 25, 2021 Static Context Header Compression (SCHC) over LoRaWAN draft-ietf-lpwan-schc-over-lorawan-14 Abstract The Static Context Header Compression (SCHC) specification describes generic header compression and fragmentation techniques for Low Power Wide Area Networks (LPWAN) technologies. SCHC is a generic mechanism designed for great flexibility so that it can be adapted for any of the LPWAN technologies. This document specifies a profile of RFC8724 to use SCHC in LoRaWAN(R) networks, and provides elements such as efficient parameterization and modes of operation. 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 July 29, 2021. Copyright Notice Copyright (c) 2021 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 publication of this document. Please review these documents Gimenez & Petrov Expires July 29, 2021 [Page 1] Internet-Draft SCHC-over-LoRaWAN January 2021 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 . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3 3. Static Context Header Compression Overview . . . . . . . . . 4 4. LoRaWAN Architecture . . . . . . . . . . . . . . . . . . . . 6 4.1. Device classes (A, B, C) and interactions . . . . . . . . 7 4.2. Device addressing . . . . . . . . . . . . . . . . . . . . 8 4.3. General Frame Types . . . . . . . . . . . . . . . . . . . 8 4.4. LoRaWAN MAC Frames . . . . . . . . . . . . . . . . . . . 9 4.5. LoRaWAN FPort . . . . . . . . . . . . . . . . . . . . . . 9 4.6. LoRaWAN empty frame . . . . . . . . . . . . . . . . . . . 9 4.7. Unicast and multicast technology . . . . . . . . . . . . 9 5. SCHC-over-LoRaWAN . . . . . . . . . . . . . . . . . . . . . . 10 5.1. LoRaWAN FPort and RuleID . . . . . . . . . . . . . . . . 10 5.2. Rule ID management . . . . . . . . . . . . . . . . . . . 10 5.3. Interface IDentifier (IID) computation . . . . . . . . . 11 5.4. Padding . . . . . . . . . . . . . . . . . . . . . . . . . 12 5.5. Decompression . . . . . . . . . . . . . . . . . . . . . . 12 5.6. Fragmentation . . . . . . . . . . . . . . . . . . . . . . 13 5.6.1. DTag . . . . . . . . . . . . . . . . . . . . . . . . 13 5.6.2. Uplink fragmentation: From device to SCHC gateway . . 13 5.6.3. Downlink fragmentation: From SCHC gateway to device . 17 5.7. SCHC Fragment Format . . . . . . . . . . . . . . . . . . 20 5.7.1. All-0 SCHC fragment . . . . . . . . . . . . . . . . . 20 5.7.2. All-1 SCHC fragment . . . . . . . . . . . . . . . . . 21 5.7.3. Delay after each LoRaWAN frame to respect local regulation . . . . . . . . . . . . . . . . . . . . . 21 6. Security Considerations . . . . . . . . . . . . . . . . . . . 21 7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 21 Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 21 Contributors . . . . . . . . . . . . . . . . . . . . . . . . . . 21 10. References . . . . . . . . . . . . . . . . . . . . . . . . . 22 10.1. Normative References . . . . . . . . . . . . . . . . . . 22 10.2. Informative References . . . . . . . . . . . . . . . . . 23 10.3. URIs . . . . . . . . . . . . . . . . . . . . . . . . . . 23Show full document text