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View Full Version : Dose DL CPICH EcNo effected by the Cell load ?????



khaldounh
2013-05-23, 11:31 PM
Hi Experts

I have one questions, Dose DL CPICH EcNo effect by the Cell load or it is not effected ?

Thanks

Khaldounh

babak1349
2013-05-23, 11:40 PM
hello mate,
Yes , EcNo is affected by own cell load, other cells' load and external interferences
WCDMA is interference limited as we are using the same frequency band in different cells
Ec/No= RSCP/RSSI and RSSI is combination of own cell signal level, other cells' signal , external interference and noise.
More load in a cell (more users and traffic) may results higher DL power to be transmitted over air interface and it means higher RSSI
In the case of HSDPA, it is worse because the HSDPA users are using remaining power of the cell so it means when there is HSDPA user , cell output power is maximum and it means higher RSSI in UE and it means worse EcNo

Cheers

Hi Experts

I have one questions, Dose DL CPICH EcNo effect by the Cell load or it is not effected ?

Thanks

Khaldounh