[Tetra] current status / scrambling

Harald Welte laforge at gnumonks.org
Fri Jan 7 12:06:00 UTC 2011

> I've recently added code to indicate when a BNCH block is to follow, but the
> de-scrambled type-2 bits do not look plausible at all.

I've fixed the scrambling sequence computation now.  And as zecke has
found out how they really use the CRC, we now get correct CRC on most of our
frames.  Those that don't are probably speech frames that of course don't
have a CRC...

So we now get the BNCH / SYSINFO PDU as well as some MAC-RESOURCE PDUs from
SB2 and NDB bursts.

- Harald Welte <laforge at gnumonks.org>           http://laforge.gnumonks.org/
"Privacy in residential applications is a desirable marketing option."
                                                  (ETSI EN 300 175-7 Ch. A6)

More information about the tetra mailing list