Why do we have different throughput with same RSRP/SINR in 5G?

You can check through ping test or KPI of TNL or packet loss.

Do you know the counter in Nokia?

Sorry, I don’t know.

Did you check it is the same serving PCI?

Any missing NBR leading to SINR fluctuations there.
The other way road.

It is only like 20 meter distance.

Check if your LTE serving, if it is NSA.
May be througpout going in LTE more that time in MCG.

So LTE and gNB are on same cell.
ENDC throughput is excellent.
But NR throughput is not good.
N66 for 5G.

LTE end, same Earfcn?

Yes, same.

Ok, that’s strange…

And the issues that everytime customer is complaining why we have bad SINR in 5G.
I do see lots of PCI mod4 conflict.
But customer don’t agree that will cause degradation.

SINR will cause degradation.

Yes, I agree.

Check neihghbor and serving PCI in NR, LTE the other way round.

On that road I have 7 sites covering and overlapping.

May be any kind of mod issue the other way around.

How is your SINR?

If SINR is bad and overlap then can’t be good throughput.
I have seen much cases in LTE too: one way no overlap, other way overlap seen.

Like ,5 db