Patent ID: 7012908
Filing Date: 2006-03-14
Classification: H04B

Abstract:
1. A CDMA base transceiver system operable to perform wireless communications by using a CDMA method, said CDMA base transceiver system comprising: an FPGA operable to process a signal at a chip rate by using FPGA program data; a DSP operable to process a signal at a symbol rate by using DSP program data; program data setting means for setting the FPGA program data used by said FPGA and the DSP program data used by said DSP; and memory connection means for connecting to an external memory; wherein: said program data setting means sets the program data by reading the program data stored in the external memory connected to said memory connection means; wherein: a base band part is constructed by using said FPGA and DSP; FPGA configuration data is used as the FPGA program data; DSP firmware is used as the DSP program data; said FPGA comprises, said DSP comprises in said searcher part in each of said respective signal processing systems disposed in said finger part, said composer is operable to compose the synchronous-detected results, corresponding to a plurality of paths, inputted from said finger part, to output the composed result as a final reception signal to said physical frame separation part, to detect a signal power/interference power ratio with regard to the composed result, to generate, according to the detected signal power/interference power ratio, a transmission power control bit for controlling a transmission power, and to output the generated transmission power control bit to said transmission frame generation part; said physical frame separation part is operable to perform separation of physical channels with respect to the reception signal inputted from said composer part and to output the post-separation reception signal to said decoder part; said decoder part is operable to perform de-interleave processing or error correction decoding with respect to the reception signal inputted from said physical frame separation part; said coder part is operable to perform interleave processing or error correction coding with respect to the transmission signal and to output the post-processing transmission signal to said physical frame multiplexing part; said physical frame multiplexing part is operable to perform mapping into physical channels with respect to the post-processing transmission signal inputted from said coder part and to output the post-mapping transmission signal to said transmission frame generation part; said transmission frame generation part is operable to generate, by using the post-mapping transmission signal inputted from said physical frame multiplexing part, a transmission frame, to output the generated transmission frame to said diffusion modulation part, and to control the transmission power according to the transmission power control bit inputted from said composer part; said diffusion code generation part is operable to generate a diffusion code and to output the generated diffusion code to said diffusion modulation part; and said diffusion modulation part is operable to perform diffusion modulation of the transmission frame inputted from said transmission frame generation part by using the diffusion code inputted from said diffusion code generation part.