RTWP

[veer sharma]

hi

How can control RTWP in WCDMA.

[samuraial]

Check interference.(Measure RTWP when there is no load and if it is near -106, you have no RTWP interference)
Check alarms(probably some jumper issue)
Check cell load( If RTWP is higher when user number is higher, you need to share the load with other cells)
Limit the HSUPA user number if you have 40 or more(go for 35 and lower till you see you are reaching an appropriate value)
Open features like IC(interference cancelation) in order to help improve the RTWP.
Open HSPA state transfer( users can go from HSPA to fach) in order to decrease the load.(check FACH usage as you may need to add another SCCPCH channel).
Change "Inactive timer" UPSINACTIVETIMER from 20s to 10s in order to save channel resources and release faster the inactive users.
If the RTWP is higher than -106 even during night hours(means no load on the cell) and you cannot find the source of the interference check "MOD RXBRANCH" in NodeB level and modify RTWPINITADJUST till a value you get near RTWP(actual value) + (RTWPINITADJUST) = -106.
Check neighbor relations for interference(Usually this is the main cause of RTWP)
So far this is what i remember :)

B/R