Design and implementation of UMTS-FDD/HSDPA baseband

A design and implementation scenario for UMTS-FDD and HSDPA baseband processing based on DSP is proposed in the paper. Through detailed analysis of both dedicated channel (DCH) chain of UMTS-FDD and HS-DSCH chain of HSDPA, a cost-effective base band design based on DSP cluster is presented. Due to flexibility of software, it is easy to combine UMTS-FDD uplink and downlink, and HSDPA into one single platform, which is able to balance the load between uplink and downlink, between voice user and data user, between uplink symbol rate processing and chip rate processing. In consequence, the processing resource is saved and the cost is reduced.