Subject: [lp-wan] Ticket #21: C bit in ACK

From: Ana Minaburo <[email-masked]>
Date: Mon, 26 Feb 2018 21:36:56 +0100

Ana: A comment from reviewers is, why we have added the C bit. Implementers
need to be aware.

The C bit has been added to know if the MIC check was correct or not. But
this C bit consumes one bit of the Bitmap space, this means that the number
of fragments will be reduced to one for the last window.
So the implementations need to calculate the number of fragments taking
this into account.