Patent ID: 7386005
Filing Date: 2008-06-10
Classification: H04B

Abstract:
1. A communication device for wideband code division multiple access (W-CDMA) signal transmission and reception, comprising: a W-CDMA transmitter comprising at least one of a first RAM and first registers arranged to store first parameters so as to configure the transmitter's operation; a W-CDMA receiver comprising at least one of a second RAM and second registers arranged to store second parameters so as to configure the receiver's operation; a signal acquisition component; and a processor in data communication with the W-CDMA transmitter, the W-CDMA receiver and the signal acquisition component, wherein the processor is configured to provide for software configuration of the first and second parameters; wherein the receiver comprises: wherein the demodulator comprises: a Rake filter producing a signal at a chip rate which is a coherent accumulation of channel corrected multipath components resulting from one base station; and a tracking unit using the signal at the chip rate for descrambling and despreading a plurality of waveform channels, wherein the Rake filter comprises: a FIFO to buffer samples at the chip rate coming from the level control block; a delay line containing a plurality of registers, an input of the delay line being connected to an output of the FIFO; a plurality of finger blocks, inputs of the finger blocks being connected to programmable tap positions on the delay line; and a summer of complex outputs of the finger blocks at a chip rate.