Patent ID: 8086228
Filing Date: 2011-12-27
Classification: H04B,H04W

Abstract:
1. A method for identifying a code group representative of a predetermined number of base stations, comprising: inputting a chip offset within a frame into a first correlator; inputting a plurality of samples of chips at which a primary synchronization code (PSC) has been detected into the first correlator; inputting a peak PSC into a second correlator and taking the complex conjugate of the peak PSC to produce a conjugate of the peak PSC; multiplying the output of the first correlator by the conjugate of the peak PSC to obtain a magnitude for the signals being transmitted at the chips inputted into the first correlator; summing the magnitude over four frames; evaluating the summed signals view of a predetermined set of decision variables; and determining a case number, a code group, a timeslot location, and system frame number based on said evaluation and a noise estimation.