Burst timing is also passed from osmo-trx to osmo-bts, so should be trivial to pass through.
For C/I we need a comment from Thomas. Currently we don't have it on the osmo-trx interface and I'm not even sure we calculate it.
Please excuse typos. Written with a touchscreen keyboard.
--
Regards,
Alexander Chemeris
CEO Fairwaves, Inc.
https://fairwaves.co
Hi.
I'm working on http://projects.osmocom.org/issues/1616 and wonder about
$subj.
In case of sysmobts, osmo-pcu obtain this data directly from DSP:
* RSSI (dBm)
* burst timing (in quarter of bits)
* link quality (in dB)
* BER
The first and last value seems to be easy from what I see in
src/osmo-bts-trx/scheduler_trx.c What about burst timing (necessary to
compute TA in the absence of PTCCH) and link quality (measure of C / I
where C is carrier and I is interference power) - how can I compute
those or some estimator to those values?
--
Max Suraev <msuraev@sysmocom.de> http://www.sysmocom.de/
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