一种WCDMA基带信号处理方法的研究

A Research on WCDMA Base-band Signal Processing Method

无线基带信号的多模处理是目前宽带移动通信发展的趋势,WCDMA系统中典型的基带信号计算为有限序列的互相关运算。采用快速傅里叶变换(FFT)完成了WCDMA多径检测典型基带信号处理,与LTE基带信号典型的FFT运算统一,实现了WCDMA和LTE多种无线制式的基带多模共享处理资源。实验仿真结果表明,该方法在性能和计算量上都能满足实际应用需求。

The multi-mode processing of wireless base-band signal is the development trend of broadband mo- bile communications at present. In the WCDMA systems, the typical base-band signal processing is the cross-corre- lation of finite sequences. A multi-path detection method in base-band signal processing, which uses the Fast Fou- rier Transformation （FFT）, is proposed. It has the uniform framework of FFT operation in LTE base-band signal processing and can realize the multi-mode resource sharing of WCDMA and LTE base-band. The simulation results demonstrate that the proposed method can meet the performance and computation demands of practical application.