Design And Software Development Of The Baseband Module For DMR Repeater Station

Special wireless communication system development is rapid, mainly used ingroup scheduling command communication. Due to the unique function of schedulingwith group calling function and fast call of the characteirstic and so the communicationifeld play a tremendous role.The system of the available channels can be system of allusers shairng, and has automatic selection of channel function, is a shared resource, costsharing, shared channel equipment and services for multipurpose, eiffcient radiodispatching communication system. The digital wireless communication system inEurope and North America mature, In Europe, DMR standard production digitalinterphone has occupied the market for about80%of the total digital interphone,Special wireless communication system by simulation technique to digital TDMAtechnology transition process continued to accelerate.This article is to study the DMR system second stages, namely the repeater mode.The ifrst wholly introduces DMR protocol layeirng structure and Repeater stationhardware platform, next introduced on the DMR communication system transmittingmode. The focus of this paper is the Design and Sotfware development of basebandmodule based on DMR Repeater station,ARM and DSP, DSP and FPGA interfaceconifguration and data exchange, In the Repeater station hardware board that has beendevelopment were tested in expeirments.Finally, on the next edition of Repeater station to do the analysis.