Hi Nikos,
On Thu, Jul 21, 2022 at 03:32:26AM +0300, Nikos Balkanas wrote:
I am trying to develop a mobile loop (uplink) for the
receiver in
receiver_impl.cc.
Despite working in GSM related development for a long time,
I'm not sure what a 'mobile loop (uplink)' is.
In any case, if you want to receive uplink signals you are building a BTS,
and there is a robust, fully working (and production deployed) GSM BTS-side
receiver in osmo-trx
https://osmocom.org/projects/osmotrx/wiki/OsmoTRX
gr-gsm currently synchronizes, finds the start of a
burst, using FCHH
and SCHH signals.
These are all downlink signals. There is no provision for
synchronizing to uplink signals.
Yes. While I am not an author of gr-gsm, the entire point of the project
was to implement the mobile station (MS) side, as for the BTS side there
were long known and working implementations in both the OpenBTS, and later
OsmoTRX/BTS and YateBTS projects.
--
- Harald Welte <laforge(a)osmocom.org>
http://laforge.gnumonks.org/
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