Project

General

Profile

Bug #4697

osmo-bts-trx ramps down RF-locked transceivers [again]

Added by fixeria about 1 year ago. Updated about 1 year ago.

Status:
Resolved
Priority:
Low
Assignee:
-
Category:
osmo-bts-trx
Target version:
-
Start date:
08/06/2020
Due date:
% Done:

100%

Spec Reference:

Description

When the BSC RF-locks a transceiver, osmo-bts-trx ramps its power down as expected. After that, on receipt of SIGINT or SIGTERM, osmo-bts-trx ramps down all transceivers, including the RF-locked ones, i.e. it increases their Tx power and ramps it down again. Thanks to another bug #4696, I noticed this weird behavior on the spectrum.

History

#1 Updated by pespin about 1 year ago

Can you explain with a bit more detail what you saw? as In ramping from what level to what level, etc.

#2 Updated by fixeria about 1 year ago

Can you explain with a bit more detail what you saw? as In ramping from what level to what level, etc.

I did not measure the levels, but it's easy to see this behavior on the spectrum. It raises the power of RF-locked transceivers up quickly, and them slowly ramps them down again. I believe the ramp down FSM should just skip RF-locked transceivers and do not raise their power up again.

#3 Updated by pespin about 1 year ago

I was referring more to seeing values from logs instead of measuring the power levels, just to have a better understanding on what's going on. It may be some bug in the ramping code related to some specific initial and target values.

#4 Updated by pespin about 1 year ago

Is this still happening after the recent RFMUTE feature being including? There has also been several fixes in the ramping code recently.

#5 Updated by fixeria about 1 year ago

  • Status changed from New to Resolved
  • % Done changed from 0 to 100

Is this still happening after the recent RFMUTE feature being including?

Nope, I am happy to confirm that it has been fixed. Thanks!

Also available in: Atom PDF

Add picture from clipboard (Maximum size: 48.8 MB)