Hello everyone
I have a doubt here from the DSP side, might be a silly one. While transmitting the
classmark or any message from mobile on SDCCH during a call, does it transmit on the
frequency we get after converting the ARFCN or is there a slight variation ?
BR
Snehasish
________________________________
From: baseband-devel <baseband-devel-bounces(a)lists.osmocom.org> on behalf of Vadim
Yanitskiy <axilirator(a)gmail.com>
Sent: Wednesday, December 6, 2017 8:19:55 PM
To: f12.sebastian(a)gmail.com
Cc: baseband-devel
Subject: Re: Classmark Testing
Hi Sebastian,
My query is : my test network is supporting A5/1,2,3.
Is it feasible to
set A5/1 on MS1 (though it supports A5/2 and A5/3 also) and A5/2 for MS2
(though it supports A5/1 and A5/3 also) for a call in between them using
"Early Classmark Sending" ???
I think it will work without any problems because the A5/X encryption
is not 'end-to-end' (in our case MS-to-MS), but there are two separate
encrypted sessions between MS1-BTS and MS2-BTS.
With best regards,
Vadim Yanitskiy.