<s>
RxQual	B-Protocol
is	O
used	O
in	O
GSM	O
and	O
is	O
a	O
part	O
of	O
the	O
Network	O
Measurement	O
Reports	O
(	O
NMR	O
)	O
.	O
</s>
<s>
Each	O
RxQual	B-Protocol
value	O
corresponds	O
to	O
an	O
estimated	O
number	O
of	O
bit	O
errors	O
in	O
a	O
number	O
of	O
bursts	O
.	O
</s>
<s>
There	O
are	O
two	O
types	O
of	O
RxQual	B-Protocol
values	O
,	O
FULL	O
and	O
SUB	O
.	O
</s>
<s>
We	O
use	O
RxQual	B-Protocol
SUB	O
when	O
we	O
have	O
DTX	O
DL	O
activated	O
because	O
RxQual	B-Protocol
FULL	O
values	O
will	O
not	O
be	O
reliable	O
,	O
because	O
they	O
will	O
use	O
Bit	O
error	O
rate	O
(	O
BER	O
)	O
measurements	O
when	O
nothing	O
has	O
been	O
sent	O
,	O
what	O
leads	O
to	O
a	O
very	O
high	O
BER	O
and	O
a	O
poor	O
RxQual	B-Protocol
.	O
</s>
<s>
If	O
DTX	O
DL	O
is	O
deactivated	O
,	O
is	O
better	O
to	O
use	O
RxQual	B-Protocol
FULL	O
values	O
,	O
they	O
are	O
more	O
precise	O
,	O
because	O
it	O
uses	O
all	O
frames	O
on	O
the	O
SACCH	O
multiframe	O
,	O
whether	O
they	O
have	O
been	O
transmitted	O
from	O
the	O
base	O
station	O
or	O
not	O
.	O
</s>
<s>
The	O
official	O
definition	O
of	O
RxQual	B-Protocol
is	O
given	O
in	O
Chapter	O
8.2.4	O
of	O
GSM	O
TS	O
05.08	O
(	O
ETSI	O
TS	O
100	O
911	O
)	O
,	O
later	O
superseded	O
by	O
3GPP	O
TS	O
45.008	O
.	O
</s>
