Patent ID: 6771688
Filing Date: 2004-08-03
Classification: H04B

Abstract:
A method of detecting and identifying a received signal including a plurality of symbols, each symbol comprising a plurality of chips, the method comprising the steps of:segmenting the received signal into at least a first and a second segment, each segment having at least one chip from each of the plurality of symbols; correlating each of the plurality of symbols represented by the at least one chip in the at least first and second segments with a representative symbol to produce at least a first and a second set of a symbol correlation outputs; producing at least a first and a second set of signal identity outputs, the first set of signal identity outputs indicating a degree of match between a first signal represented by the first set of symbol correlation outputs and each of a plurality of expected signal intensities, and the second set of signal identity outputs indicating a degree of match between the second signal represented by the second set of symbol correlation outputs and each of the plurality of expected signal identities; summing corresponding signal identity outputs from the at least first and second sets of signal identity outputs to form a plurality of summed signal identity outputs; and comparing each summed signal identity output to a threshold to detect and identify the received signal.