Please have a look at gerrit #623 - am I computing BER properly? I've
tried to follow what's done for meas. ind. Also, how would you recommend
to compute/estimate C/I? In the current patch version I'm just using 0.
On 08/02/2016 12:57 AM, Tom Tsou wrote:
On Fri, Jul 29, 2016 at 5:18 PM, Alexander Chemeris
<alexander.chemeris(a)gmail.com> wrote:
Burst timing is also passed from osmo-trx to
osmo-bts, so should be trivial
to pass through.
Yes. I don't know where the TOA value ends up in osmo-bts,
but the
value is definitely carried per-burst on the socket interface.
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.
We don't have
C/I directly. We do have a running average 'noise' level
(calculated channel power on non-active uplink slots) and the RSSI
value. The channel noise is queried with the NOISELEV command. RSSI is
carried per-burst on the socket message. C/I can be calculated from
those two values.
Do we need a periodically averaged C/I value or an update every burst?
-TT
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Max Suraev <msuraev(a)sysmocom.de>
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