Uplilnk Intereference

[rishi]

Hi Experts,

Can anyone give me details of uplink intereference in umts with accetable value for kpi and required value

[hari_2208]

Hope below helps!!!

+ check for vendor specific report for RTWP
UL interfernce can be measured on the basis of RTWP: -95 to -105 dbm is good.but up to -80 also shouldnt effect for low data calls/voice.

+ in feild if you are seeing very high UE tx power than it should be in normal case.

[duongha86]

Hi Experts,

Can anyone give me details of uplink intereference in umts with accetable value for kpi and required value

Maybe you'll find some thing in this topic : http://www.finetopix.com/live-optimization/14284-wcdma-interference-processing-guide.html

BRs,

[Weapon939]

As a rule of thumb for E******* UMTS, anything above -100dBm indicates a problem

[basith.aces]

Hope below helps!!!

+ check for vendor specific report for RTWP
UL interfernce can be measured on the basis of RTWP: -95 to -105 dbm is good.but up to -80 also shouldnt effect for low data calls/voice.

+ in feild if you are seeing very high UE tx power than it should be in normal case.

Dear Friend

Please more specific on range

RTWP Range:
Good range:
bad range or interference range:

Thanks

BR
Basith.aces

[blind shadow]

in WiMAX, it has the same scenarios when we encounter external interference, the CINR decreases and the RSSI increases, the MS TX power also increases at a high rate. Band scan should be performed to verify external interference. When the peak-average power is higher than the measured reference noise power it is considered interference. MSTXPOW>10 dBm, the RSSI>85 dBm and CINR>15 dB these are the parameters to be checked during drive test. Perform a band scan in different locations (testpoints) and capture the results. The interferer should be located and retune his frequency as mandated by any governments telecommunications guidelines in any region of the world. (I hope this one helps)

[ahmadruslani]

Maybe you can check other radio access technologies especially product of GSM ARFCN ( from same operator or different operator ) that intermodulate to the UL ARFCN. Co-sited cells especially indoor cells are most likely to have this issue when a site use common combining circuit for all operators.