high rtwp 3G

[kkagimu]

hello everyone
What is solution to high rtwp valves. there is a certain sector in the network experiencing a high rtwp valve. site has been on AIR for more than a year but the problem started recently

[twenty8]

Hi,
Propose to check PrxNoise values in the cell. also check if there is high number of HSUPA usage in the cell as this can cause high noise rise especially > 1.4mbps on UL.

[kkagimu]

wat counter can i use to find the prxnoise valve? thanks for your help?

[balachandrun]

please check the cell load, monitor the cell TCP....hardware faults can cuase high RTWP.... like faults in feeder,connectors may cause IInter product modulation...

[boring]

it is critical to see how ul interference behaves during a 24-hour period

is it during BH? then it could be because of HSUPA users (admission control must be configured properly)

HW issues could always be the problem. this will show high interference during night time in most cases

also don't forget external interference (but here you need to do a site visit and to use a spectrum analyser)

[mulham_kh]

I think you have to check if there is a swap Feeders between two sectors or if there is any external interference , and the easiest way is to see if the high RSSI occurs in all Hours or in the peak hour only.

[adewijaya]

which one alarm happend ?

1. ALM-26522 RF Unit RX Channel RTWP/RSSI Unbalanced
Possible Causes
a.The main RX channel or diversity RX channel of the RF unit is faulty.
b.The setting of attenuation on the RX channel of the RF unit is incorrect.
c.External interferences exist on the main or diversity antenna of the RF unit.
d.The feeder connected to the RF unit is faulty, which results in a high passive intermodulation power of the main antenna.

2. ALM-26521 RF Unit RX Channel RTWP/RSSI Too Low
Possible Causes
a.The setting of attenuation of the RF unit is incorrect.
b.The TMA is faulty.
c.The feeder installation is improper. For example, the feeder connector is loose, soaked or damaged, or the feeder is deformed.
d.The RF unit is faulty.

3. ALM-26239 RX Channel RTWP/RSSI Unbalanced Between RF Units
Possible Causes
a.The main RX channel or diversity RX channel of the RF unit is faulty.
b.The attenuation setting of the RX channel of the RF unit is incorrect.
c.External interferences exist on the antenna connected to the RF unit.
d.The feeder connected to the RF unit is faulty, which results in a high passive intermodulation power of the main antenna.
e.The RF unit malfunctions.

[redtomato168]

it is critical to see how ul interference behaves during a 24-hour period

is it during BH? then it could be because of HSUPA users (admission control must be configured properly)

HW issues could always be the problem. this will show high interference during night time in most cases

also don't forget external interference (but here you need to do a site visit and to use a spectrum analyser)

our network also have high UL interference, high RTWP in BH, cause HSUPA users. How to correct configured?

[jan74]

our network also have high UL interference, high RTWP in BH, cause HSUPA users. How to correct configured?

If you have high RTWP and your PrxNoise is still at normal values like -104dBm to -106dBm, the likelihood is that its caused by HSUPA users and its down to traffic. Check all your neighbours are in place to be sure.

[boring]

our network also have high UL interference, high RTWP in BH, cause HSUPA users. How to correct configured?

which vendor are you using?
have you activated admission control in the uplink?