Phone acting as a BTS
David A. Burgess
dburgess at jcis.net
Wed Feb 24 07:59:39 CET 2010
Harald, Sylvain -
We have tried running OpenBTS in a half-duplex mode to see if we
could remove the duplexer for really cheap applications, but it
doesn't work very well. Some handsets respond to it and others don't.
-- David
On Feb 23, 2010, at 7:25 PM, Harald Welte wrote:
>
> Interesting idea, but I doubt it would work all that well. A C0 of
> a BTS is
> required to transmit continuously on all timeslots. The first step
> when
> scanning for BTS's is a power scan. So if a MS does a power scan,
> it might
> do that at a time when your poor-mans-BTS is not transmitting and
> thus not find
> it.
>
> There might be other reasons why a MS is having problems with a
> 'discontinuously trasmitting' C0 of a BTS, as it is required by the
> spec.
>
> David Burgess might know more about it. Also, this behavior could be
> simulated with OpenBTS, just to see how phones react to it.
>
> But I'd say definitely worth a try...
David A. Burgess
Kestrel Signal Processing, Inc.
More information about the baseband-devel
mailing list