WCDMA different operator impact

[haider79]

Dear Experts,

Recently we have noticed that one of our operator 3G cells was impacted (as a noise) by newly operated sites from different operator, can somebody let me know whether this issue valid or not? and if yes how please?

BR,

[Nyquist]

Hi.
Yes it's posible.
This is my view:
RBS-RBS Interference (no co-location) (differente Operators)

Spurious emission: unwanted emission from the other operator (probabbly due to a fault in transmition equipment)
Blocking issue in your operator: fault in receivers capability to perform the blocking of a strong interference from the other operator
Isolation between systems: this could be possible in case the other operator is using, for instance, an originary GSM frequency band to deploy WCDMA or LTE technology and they don't comply with the required Guard Band. In this example both operators are using contiguous channels


Hope it helps

[slava121]

Check the spectrum analyzer on the problem sites for the bandwidth in the Uplink base stations of your network. You should see the source of the interference.
Possible causes of interference:
1. Lack of guard intervals between channels allocated to operators (UMTS - GSM). (with channel interference)
2. Use of non-standard UMTS channels by operators.
3. The use of incompatible equipment by frequency (example: UMTS900 and UMTS 850 incompatible use in the same network).
In all cases there will be a high level of RTWP.

[atit]

Did you have experience how much the level of interference can reach, do you have examples.



Check the spectrum analyzer on the problem sites for the bandwidth in the Uplink base stations of your network. You should see the source of the interference.
Possible causes of interference:
1. Lack of guard intervals between channels allocated to operators (UMTS - GSM). (with channel interference)
2. Use of non-standard UMTS channels by operators.
3. The use of incompatible equipment by frequency (example: UMTS900 and UMTS 850 incompatible use in the same network).
In all cases there will be a high level of RTWP.

[atit]

Dear Expert

all above points are checked and considered but still we have high RTWP, so after deep checking we found the illegal repeaters that used by sub have higher impact on 900 band, so do you have idea how we can solve it please.

Thanks in Advance

[slava121]

UMTS signal repeater?


Dear Expert

all above points are checked and considered but still we have high RTWP, so after deep checking we found the illegal repeaters that used by sub have higher impact on 900 band, so do you have idea how we can solve it please.

Thanks in Advance

[Nyquist]

Dear Expert

all above points are checked and considered but still we have high RTWP, so after deep checking we found the illegal repeaters that used by sub have higher impact on 900 band, so do you have idea how we can solve it please.

Thanks in Advance

Illegal repeaters? The only way I could think about is stop transmitting after a reporting to the country administration.

[atit]

A
Illegal repeaters? The only way I could think about is stop transmitting after a reporting to the country administration.

You are right ...it’s has this very bad impact all features for mitigation this interference fail and We start reporting..but still I thinking there is a solution so plz does any one can help.