WCDMA基站下行专用信道基带处理模块的一种三阶段前向流水式实现方案研究

The study of a three stages forward pipeline realization for WCDMA BTS downlink DCH baseband process module

根据3GPP相关协议对WCDMA基站下行专用信道基带处理模块的数据处理过程及影响基带处理模块实现的关键特征进行了详细分析;给出了一个同时支持16路下行专用信道的基带处理模块的设计目标。在比较了采用多DSP处理器的“全软件”方案、采用大规模FPGA结合DSP处理器方案各自的可行性和局限性之后,提出了一个采用多DSP处理器结合大规模FPGA的“三阶段前向流水式”实现方案并给出了实现方案的设计框图。

Through detailed analysis on the WCDMA BTS downlink DCH ( dedicative channel) baseband process and the key elements in this course based on the relative protocols of 3GPP, a design object is presented for 16 downlink DCHs baseband process module. Then a three stages forward pipeline scheme is posed and its realization diagram is given for this presented design object.