Change in osmocom-bb[master]: trxcon/scheduler: substitute lost TDMA frames on Downlink

[fixeria]

Hello laforge, Jenkins Builder, 

I'd like you to reexamine a change. Please visit

    https://gerrit.osmocom.org/c/osmocom-bb/+/17352

to look at the new patch set (#3).

Change subject: trxcon/scheduler: substitute lost TDMA frames on Downlink
......................................................................

trxcon/scheduler: substitute lost TDMA frames on Downlink

It may happen that one or more Downlink bursts are lost on their
way to the MS due to a variety of reasons. Modern transceivers
supporting TRXDv1 protocol would substitute lost bursts with
so-called NOPE indications. Hovewer, neither fake_trx.py nor
grgsm_trx do support this feature at the moment.

We can still detect and compensate TDMA frame loss per logical
channels in the same way as it's already done in osmo-bts-trx.
In short, we should keep TDMA frame number of the last received
burst in the logical channel state, and using the appropriate
multiframe layout, check if there were any gaps between TDMA
frame number of the current burst and the stored one.

Change-Id: I3551d79796a3730565c2c70577e9d134e636f275
---
M src/host/trxcon/sched_trx.c
M src/host/trxcon/sched_trx.h
2 files changed, 100 insertions(+), 55 deletions(-)


  git pull ssh://gerrit.osmocom.org:29418/osmocom-bb refs/changes/52/17352/3
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Gerrit-Project: osmocom-bb
Gerrit-Branch: master
Gerrit-Change-Id: I3551d79796a3730565c2c70577e9d134e636f275
Gerrit-Change-Number: 17352
Gerrit-PatchSet: 3
Gerrit-Owner: fixeria <axilirator at gmail.com>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: laforge <laforge at osmocom.org>
Gerrit-MessageType: newpatchset
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