Testing (or even type approval).

Alexander Chemeris alexander.chemeris at gmail.com
Fri Oct 5 00:17:54 UTC 2012


I wonder could we use a channel simulator to test a BTS instead of the
handset? Then it will be very valuable.

On Thu, Oct 4, 2012 at 4:38 PM, Andrew Back <andrew at carrierdetect.com> wrote:
> Hello,
> I've picked up what appears to be most of a Rohde & Schwarz TS8916B
> GSM Type Approval system (CRTC02 equipment, a Sofimation SOFI05 radio
> channel/fading simulator and various RF switching) and wondered if it
> may be of use in testing the baseband. Or can everything we would want
> to test be done using simple MS test equipment and/or a BTS with
> OpenBSC?
> I did also wonder whether it would be possible to use this to try and
> achieve type approval, but realise that even if the rest of the
> hardware could be gathered together it would be a huge learning curve
> and even then maybe you have to be accredited/authorised for TA (or
> other challenges would prevent this). In any case, I thought it worth
> asking the question before it is split up.
> Regards,
> Andrew
> PS. Some photos are at:
>   http://www.flickr.com/photos/carrierdetect/sets/72157631692365280/with/8054445310/
> The digital units are PCs running DOS and tests are written in C and
> compiled to run on DSP boards (2x TX + 2x RX per CRTC02 digital unit)
> which drive the attached analogue units. GPIB is used for control
> between these and to also control the SOFI, RF switches and other
> equipment that is missing (a signal generator and a second SOFI at
> least).
> --
> Andrew Back
> http://carrierdetect.com

Alexander Chemeris.
CEO, Fairwaves LLC / ООО УмРадио

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