TD-SCDMA系统的信道编码技术及其FPGA实现

Study of channel coding for TD-SCDMA system based on FPGA

为了提高TD-SCDMA信号传输的可靠性和有效性,TD-SCDMA移动通信系统采用了循环冗余编码、卷积编码等重要信道编码手段,从而提升系统的纠错性能,提高通信质量。本文对相关的信道编码技术进行仔细研究,然后采用FPGA器件来实现信道编码,并给出VHDL实现信道编码程序,该程序已经TD-SCDMA系统运用,达到良好的效果,另外,信道编码模块也可以移植到WCDMA、CDMA2000移动通信系统。

In order to improve the reliability and validity of TD-SCDMA signal transmission,the mobile communication system of TD-SCDMA uses cyclic redundancy coding,convolutional coding,channel coding means,so as to improve the system error correction performance,and improve communication quality.The related channel coding technology are studied in this paper,and then uses the FPGA device to realize the channel coding,and gives the VHDL implementation of channel coding procedures,the procedures have been used in TD-SCDMA systems,achieves good results,and the program module come into use in WCDMA and CDMA2000 mobile communication system.