Hello Holger,
If you need some help in the near future (as soon our equipment arrives, orders left the building today... or at least they should): we have full equipped and licensed GSM-E1-Analyzers. I think we can provide some traces if required (I know that Harald has shoot an ELMI-Abis-Analyzer at EBay, just for notice).
Good to know that. What about a GSM Analyzer for the Air Interface :-) ? In the moment ISDN E1 traces are not that important because its under control of OpenBSC anyway. The traces of the Siemens specific configuration commands were done on the RS232 interface of the BS-11, the configuration software under NDA uses RS232 only, at least I don't have any other BS-11 specific software which uses the ISDN interface.
I anyone has access to a real GSM Abis Interface and can provide traces of a working network this could be very interesting to have a look at.
And for tracing the GSM air inteface with cheap equipment, well, lets hope that we can get something for that in the future...
Best regards, Dieter
Hello Dieter,
I anyone has access to a real GSM Abis Interface and can provide traces of a working network this could be very interesting to have a look at.
And for tracing the GSM air inteface with cheap equipment, well, lets hope that we can get something for that in the future...
Couldn't we use a GNU-Radio combined with the GSM-HF-RX? We had a student research project which used that with Wireshark. I think I could borrow it for a few days and sniff some stuff at our lab. Just tell me what sequences you need.
But first I have to write some exams, no hands-on-hardware until they are finished ;-)
Best Regards, Holger
-- | Holger Adams, holger@kernreaktor.org | WWW: http://www.kernreaktor.org
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Dieter Spaar -
Holger Adams