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Fragmentation in LPWAN considerations: CoAP Block vs SCHC fragmentation

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Carles Gomez , Jon Crowcroft
Last updated 2020-02-28 (Latest revision 2019-08-27)
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


The SCHC adaptation layer provides header compression and fragmentation functionality between IPv6 and an underlying LPWAN technology. SCHC fragmentation has been specifically designed for the characteristics of LPWANs. However, when CoAP is used at the application layer, there exists an alternative approach for fragmentation, which is using the CoAP Block option. This document aims at illustrating the advantages and limitations of each approach for transferring larger payloads.


Carles Gomez
Jon Crowcroft

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)