Change in ...osmo-bts[master]: osmo-bts/scheduler: provide actual C/I values to OsmoPCU

[fixeria]

Hello tnt, pespin, ipse, laforge, Jenkins Builder, 

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

    https://gerrit.osmocom.org/c/osmo-bts/+/14613

to look at the new patch set (#4).

Change subject: osmo-bts/scheduler: provide actual C/I values to OsmoPCU
......................................................................

osmo-bts/scheduler: provide actual C/I values to OsmoPCU

C/I (Carrier-to-Interference ratio) is a value in cB (centiBels),
computed from the training sequence of each received burst,
by comparing the "ideal" training sequence with the actual one.

So far, there was no way to expose more measurements from OsmoTRX,
excluding both RSSI and ToA. Since the new version of TRXD header,
we can receive C/I indications and send the averaged (per 4 bursts)
values to OsmoPCU (as a part of PCUIF_DATA.ind).

Please note that we also need to attach C/I measurements
to the following L1SAP primitives:

  - PRIM_PH_RACH.ind,
  - PRIM_PH_DATA.ind,
  - PRIM_TCH.ind,

but this will be done in the follow up changes.

Change-Id: Ia58043bd2381a4d34d604522e02899ae64ee0d26
Fixes: OS#1855
---
M include/osmo-bts/scheduler.h
M src/osmo-bts-trx/scheduler_trx.c
2 files changed, 18 insertions(+), 3 deletions(-)


  git pull ssh://gerrit.osmocom.org:29418/osmo-bts refs/changes/13/14613/4
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Gerrit-Project: osmo-bts
Gerrit-Branch: master
Gerrit-Change-Id: Ia58043bd2381a4d34d604522e02899ae64ee0d26
Gerrit-Change-Number: 14613
Gerrit-PatchSet: 4
Gerrit-Owner: fixeria <axilirator at gmail.com>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: ipse <Alexander.Chemeris at gmail.com>
Gerrit-Reviewer: laforge <laforge at gnumonks.org>
Gerrit-Reviewer: pespin <pespin at sysmocom.de>
Gerrit-Reviewer: tnt <tnt at 246tNt.com>
Gerrit-MessageType: newpatchset
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