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