2 Oct
2012
2 Oct
'12
5:23 p.m.
Hi Yann,
Yann R. Moupinda wrote:
An important part of my thesis is to understand how
the sysmoBTS works
and therefore I did some measurements with wireshark to analyse the
data flow between the BTS,BSC and MSC/HLR/VLR/EIR. This is also to
see the main differences between a sysmoBTS and a conventional GSM
Network.
So i can not see what happens behind this port (behind
BSC).
In order to get the communication between BSC and MSC, i decided to
have a deeper look on the logging messages of the sysmoBTS. Even there,
i cannot recognize how the data transmission between BSC and MSC works.
Start looking at the source code. Pick some entry point for a message
that you understand. Follow the call graph through the source code,
to learn about the data flow in OpenBSC. You will quickly find what
the difference is between OpenBSC and a conventional BSC.
//Peter