22 Dec
2010
22 Dec
'10
6:23 p.m.
Hi all,
On 22.12.2010 17:58, Harald Welte wrote:
A number of people want to do some long-term
evaluation of their cellular
environment and would be interested in an 'app' for OsmocomBB that continuously
scans the spectrum and dumps the cell parameters such as
* ARFCN, Signal Level, SNR
* frequency synch offset
* SCH info (BCC/NCC)
* SI (at least 1-4) from BCCH
* optional logging of GPS coordinates from a GPS receiver
Just to avoid any duplicate of work as well: most of this is already
done by cell_log (layer23/src/misc). It iterates over the whole spectrum
and tries to get an Immediate Assignment by sending a RACH to every cell.
It stores SI1-4, GPS position and the TA in a logfile, and using the
gsmmap utility you can create a *.kml map of the calculated cell
positions for Google Earth.
So what's missing is really only the PCAP support and a command line
switch to turn off the "active" scanning by sending no RACHs.
Regards,
Steve