Study on Propagation Model Tuning Based on WCDMA System

In order to obtain universal outdoor propagation model of WCDMA(Wideband Code Division Multi- ple Access)network suited for Chinese city environment and a better direct WCDMA network planning.A tuned propagation model suited for WCDMA network in small and medium-sized city is established.It is obtained by curve-fitting using least-squares according to the testing data from CW(Continuous Wave)test.Results of sim- ulation show that this tuning method suits for smooth small and medium-sized city.The maximum error between model after adjustment and path-testing level is reduced by 40 dB.Furthermore,this method has the advantage of having less reliant to digital map.It is valuable to directing Chinese WCDMA network planning.