Universal rake receiver

A spread spectrum communication receiver, the receiver comprising:

• an analog to digital converter receiving a signal and outputting a sampled data stream;
• an interpolator receiving the sampled data stream and generating an interpolated data stream including data derived from the sampled data stream;
• and
• a timing selection circuit identifying one of the values of the interpolated data stream as a representative data sample.

A receiver section for a spread spectrum communication system incorporating a receiver section, the receiver section comprising:

• a plurality of processing units, the processing units configurable to provide a plurality of correlation functions;
• a signal acquisition section, the signal acquisition section coupled to receive analog communication signals, the signal acquisition section outputting a sampled data stream corresponding to a plurality of multipath components at a first oversampled data rate;
• an interpolator receiving the sampled data stream and generating an interpolated data stream at a second oversampled data rate greater than the first oversampled first data rate, the plurality of processing units receiving data signals from the interpolated data stream and performing correlation functions on the data signals;
• and
• a combining unit receiving signals processed in a plurality of processing units, the combining unit weighting and combining the signals to generate symbol data.

A receiver section for a spread spectrum communication system incorporating a receiver section, the receiver section comprising:

• a plurality of processing units, the processing units configurable to provide a plurality of correlation functions;
• a signal acquisition section, the signal acquisition section coupled to receive analog communication signals, the signal acquisition section outputting a sampled data stream at a first oversampled data rate;
• a modulator coupled to the signal acquisition section receiving and derotating the sampled data stream;
• an interpolator coupled to the modulator and receiving the sampled data stream and generating an interpolated data stream at a second oversampled data rate greater than the first oversampled first data rate;
• and
• a frequency detector coupled to the interpolator and determining a frequency correction, the modulator responsive to the frequency correction in derotating the data stream.