I have an issue on LTE.
I have a site with one L1800 carrier.
In one sector, bandwidth was upgrade from 10 MHz to 15 MHz.
But it don’t have any HO on the cell.
I have defined interfreq on collocated cells.
Vendor is Nokia.
LNHOIF - IRFM
Deleted all LNADJ and LNREL
Then activated ANR
Admin note: this post was updated with image below.
Was cell halted and restarted correctly?
BW also need cell to be halted before.
No attempt for incoming and outcoming?
Intra freq is 0 on the cell.
Inter freq also 0.
Why 1 cell…not in a cluster or many cells?
Was just to show to customer the workaround.
BB not enough to enable all the cells.
Try in 3 cells on that site?
Not possible for now.
Only 1 cell can be upgraded.
Due to BB limitations.
They have to install 1 FBBC.
Yes because PRB increased.
Indeed. But my concern is HO.
It is kind of difficult to troubleshoot through WhatsApp, however my recommendations:
Discard Hardware issues (RRU, BBU, Transmission status for X2 links, S1 link), since this is only one cell.
Discard Configuration on the following parameters:
2.1 Intra-Freq HO: enableBetterCellHo, enableCovHo, actLTES1Ho, prioTopoHO
2.2 Inter-Freq HO: actIfHo, eutraCarrierInfo
2.3 LNHOF: eutraCarrierInfo, measurementBandwidth
2.4 IRFIM: dlCarFrqEut, measBdw,
Verify that ANR is enabled and working, maybe delete all LNREL and let the ANR create them again.
Oh much thanks my friend!
Just seen the parameter i forgot:
Forgot to enable thisfor IF to start working
All others parameters well set and LNHOIF defined.
ANR part done before: deactivation, deletion, activation.
Live measurements - IFHO working:
And what is the value for the another cells (with bw = 10 MHz)?
I enabled it on the 3 cells with differents LNHOIF.
- S1 is in 15 MHz
- S2/S3 are 10 MHz