how to solve UE fail in HSPA accessibility

[eritelecom]

Hi,

at our network (Nokia RU40) the most of rejection (fail) are coming (in number) fro UE fail for both hsdpa and hsupa selection.
can anyone help me resolve this situation ?
thx
Eritelecom

[anulik_hov]

In my network(NSN RU40) i found way with disabling DRRC and layering, if UE failures in 2-nd or 3rd carriers - HSDPALayeringCommonChEnabled=0, DirectedRRCForHSDPALayerEnabled=0

[eritelecom]

but how to make traffic balance between layers ( 2100 F1 and F2) ?, if i use HSPA capa I will introduce more UL interference (RTWP) due to CM

[anulik_hov]

From F1 to F2,F3 DRRC and layering will still work, so if N of users will be more on F2, mechanism will not direct users any more. If you will still have unbalance, you can use CellWeightForHSDPALayering.
By the way, 1 more finding with UE failures - sometimes while adding new neighbor also bringing UE fail, when N of total neighbors somehow became more on cell. here we just remove exceeding neighbors and sometimes it's the cause.

[eritelecom]

how DRRC will still work with DirectedRRCForHSDPALayerEnabled=0 ?

[anulik_hov]

in my case i have seen that UE failures happened mainly on F2 and F3. so i kept DRRC+layering on F1(F1->F2,F3 works) and disabled on F2,F3(F2,F3->F1 doesn't work)

[BENRHOUMASALEM]

in my case i have seen that UE failures happened mainly on F2 and F3. so i kept DRRC+layering on F1(F1->F2,F3 works) and disabled on F2,F3(F2,F3->F1 doesn't work)

HI anulik_hov,
Your problem is resolved after this action?
BR,