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Feature #1866

closed

Make use of RSL RF RESOURCE INDICATION (interference measurements)

Added by laforge about 5 years ago. Updated 3 months ago.

Status:
Resolved
Priority:
Normal
Assignee:
Category:
A-bis RSL
Target version:
-
Start date:
12/02/2016
Due date:
% Done:

0%

Spec Reference:
3GPP TS 48.058 Ch. 6.1 and 8.6.1

Description

If a BTS supports reporting RF interference / noise floor measurements, we should use those measurements in the BSC to determine which channels are better candidates for allocation on a given BTS, and which are no good candidates.

We can also use this information together with a threshold to generate alarms about too high background noise at a given BTS/TRX.


Related issues

Related to OsmoBTS - Feature #1569: Report RF interference levels as part of RF RESOURCE INDICATIONResolvedfixeria02/23/2016

Actions
Blocked by OsmoBSC - Bug #5172: Uplink is broken: wrong TSC is sent in RSL CHANnel ACTIVationResolvedneels06/04/2021

Actions
Actions #1

Updated by laforge about 5 years ago

  • Related to Feature #1569: Report RF interference levels as part of RF RESOURCE INDICATION added
Actions #2

Updated by laforge about 4 years ago

  • Project changed from OpenBSC to OsmoBSC
  • Category deleted (libbsc)
Actions #3

Updated by laforge about 4 years ago

  • Category set to A-bis RSL
Actions #4

Updated by fixeria 8 months ago

  • Blocked by Bug #5172: Uplink is broken: wrong TSC is sent in RSL CHANnel ACTIVation added
Actions #5

Updated by fixeria 8 months ago

I spent some time making the related parameters configurable via the VTY:

https://gerrit.osmocom.org/c/osmo-bsc/+/24548 Make interference measurement parameters configurable

Actions #6

Updated by fixeria 4 months ago

  • Status changed from New to Feedback
  • Assignee set to neels

As far as I know, Neels has extended the channel allocation logic to use the interference levels. If so, let's close this ticket.

Actions #7

Updated by neels 3 months ago

  • Status changed from Feedback to Resolved

Making use of RES IND has been implemented since some while ago
(probably tracked it in sysmocom's internal redmine and didn't see this public ticket).

Using it to pick least noisy lchans is off by default, enable this feature by

bts N
 channel allocator avoid-interference 1

See https://git.osmocom.org/osmo-bsc/commit/?id=5ac70756435213783c5f6896d17d1b55ba17286c

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