The following changes were made:
- Both implementation and headers were merged with misc_utils
- Fixed namespace mess: was gr::grgsm, became gr::gsm
- More accurate class name was chosen: "trx_burst_if"
This change introduces a new block 'TRX Interface', which is aimed
to provide an interface for external applications, such as Osmocom
MS side stack implementation - OsmocomBB. Currently one allows to
exchange raw GSM bursts between GR-GSM and other applications.
Moreover, there is a new 'trx.py' application, which implements a
simple follow graph, where all demodulated bursts are being sent
to external application via UDP link provided by 'TRX Interface'.
OsmoTRX (Osmocom's fork of OpenBTS transceiver) like control
interface is used to initialize, configure, start and stop the
application. Messages on this interface are human readable ASCII
strings, which contain a command and some related parameters.
Corrected clock_offset_corrector (for some streange and yet unknown reason fractional resampler eats strem tags for some values of sps).
(this commit may contain some changes that are not described)
FCCH burst tagger is element of hierarchical block - FCCH detector that adds tags after every detected FCCH burst. The value of each tag is a frequency offset estimate.
SCH detector waits for tags from FCCH detector which are used to find SCH burst position. It is unfinished.
Vadim Yanitskiy