FACH congestion impact ?

[fahmi]

Dear experts,

I have some questions about Fach and its usage and impact :

How many Fach are normally configured in a cell ?
What does mean a Fach congestion (is that a code congestion or what) ?
When we have a Fach congestion, what are the KPIs that could be affected by this ?
How to check the number Fach configured in Huawei RAN12.
The allocation of another SF64 code for a second Fach could it limit the HSDPA codes ?
What is the Iub bandwith normally allocated to one FACH ?

Many thanks

BR,
Fahmi.

[fahmi]

Come on guys waiting for your answers !!

[elmorabet]

1- two
2- BW congestion or User congestion
3-PS CDR mainly
4-Lst UFACH
5-Sure
6- depend on SF used

[fuzzy_animals]

do you actually suffer from FACH congestion?

[fahmi]

do you actually suffer from FACH congestion?

Yes, in fact I am checking VS.FACH.DTCH.CONG.TIME counter (RAN12) and I wonder when to consider that there is a congestion on FACH or not and if there is a need to a second FACH ?
Also, how to check the Iub bandwith allocated to the FACH ?

[jayk]

Can check Iub Bandwidth allocated to FACH by counter VS.CRNC.IUB.FACH.Bandwidth