UL Interference is high, but other KPIs OK

you can check UE Power step increase parameter. it can cause High UL Interference if you didnot set properly.

Hi folks - so I tried to (excessively) downtiling from 2 to 9 and here are the results of “L.UL.Interference.Avg”.

So with this it’s definitely an external interference, right?

For me it is.

From my limited knowledge it is, but monitor it on a daily basis before we can conclude that is external.

Thanks @javiersapon, @Vic20 both for the feedback.
One thing I notice is the sudden rise of L.UL.Interference.PRACH.Index0 following the downtilting action.

Any thoughts on this?

You must have RSI conflict.
Check the RSI of neighbors cells.

Thanks @Maverick!

Some nbr cells have RSIs that don’t correspond to cell radius.
Do you think this could be the cause?
Also are you aware of any tools that could help audit/correct RSIs other than U-Net, Planet, etc?