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In this paper, we present a new simulation platform of 3G (the third-generation mobile communication). Combined with the concept of Software Defined Radio (SDR) and complied with the 3rd Generation Partnership Project (3GPP) proposal, first, we build up a general structure platform of the downlink physical layer based on 3G WCDMA (FDD) in COSSAP software package, then study such key technology of 3G as turbo encoders and decoders, RAKE receivers. The simulation result is similar to relevant documents. As a result, it could be applied as a basic platform to do further research on the key technology in SDR field.
Combined with the concept of Software Defined Radio (SDR) and complied with the 3rd Generation Partnership Project (3GPP) proposal, first, we build up a general structure of the downlink physical layer based on 3G WCDMA (FDD) in COSSAP software package, then study such key technology of 3G as turbo encoders and decoders, RAKE receivers. As a result, it could be applied as a basic platform to do more research on the key technology in SDR field.