Research And Development On Driver Of WCDMA Base Band

This paper studies using ASIC IC2001 which is ZTE independently-developed and DSP from TI company to finish the driver of rake receiver and symbol processing function based on 3G base band. Achieving the chip mapping, resource planning, the driver of baseband realization and experimental validation with the developing tool CCS IDE supplied by TI company.First, this paper gives a method, which is utilized by baseband system according to WCDMA system capability requirements, using ASIC+DSP to realize Raker, using DSP+DSP to realize symbol process. The hardware structure of ASIC+DSP and DSP+DSP is designed from the whole design view. Then, the discussion is made of the main function module of IC2001 and DSP, HI module, DSP peripherals on chip such as HPI, EDMA and EMIF. The driver is developed based on the base band system function. Last, the test data sent out by signal generator comes into the system, plots the waveform from export data after the function is achieved, and gives validation analysis to the design method.In this paper, the driver of WCDMA base band system is developed, debugging finished and the expected result achieved. A solid foundation is laid for successfully turning the product to market.