Change in osmo-bts[master]: measurement: account FACCH/H uplink measurements correctly

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dexter gerrit-no-reply at lists.osmocom.org
Mon Nov 2 18:40:11 UTC 2020


dexter has posted comments on this change. ( https://gerrit.osmocom.org/c/osmo-bts/+/20980 )

Change subject: measurement: account FACCH/H uplink measurements correctly
......................................................................


Patch Set 2:

> Patch Set 1:
> 
> My assumption was wrong, we already do send to BFIs in the current implementation:
> 
> https://gerrit.osmocom.org/c/osmo-bts/+/20981 osmo-bts-trx/scheduler: fix comments related to FACCH/H and BFI
> 
> so why would we end up with one measurement sample less then? I guess the problem is that one such BFI is ignored by the measurement logic as expected, while another one is not, because it holds a valid RSSI value? During the last call, I proposed to ignore the measurement samples carried by BFIs triggered by FACCH, but what if we take the opposite approach and ignore FACCH samples instead? In other words, you count speech frames as usual, including all BFIs, but do not take FACCH samples into account. This way there would be need to mess up with expected number of measurements, it would always be constant. And of course, this is only in speech mode. In signalling, we count FACCH frames as usual. What do you think?

I think your idea worked out. I have now BTS_Tests.TC_meas_res_speech_tchh_facch passing.
See also: https://gerrit.osmocom.org/c/osmo-bts/+/21024


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Gerrit-Project: osmo-bts
Gerrit-Branch: master
Gerrit-Change-Id: Ibf693aede8fffa6432cdcdcf5d52910493a1104b
Gerrit-Change-Number: 20980
Gerrit-PatchSet: 2
Gerrit-Owner: dexter <pmaier at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: fixeria <vyanitskiy at sysmocom.de>
Gerrit-Reviewer: laforge <laforge at osmocom.org>
Gerrit-Comment-Date: Mon, 02 Nov 2020 18:40:11 +0000
Gerrit-HasComments: No
Gerrit-Has-Labels: No
Gerrit-MessageType: comment
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