Patent ID: 8259851

Claim:
A receiver for use on a cellular radio network, the receiver comprising: a transformation unit configured to phase-rotate a phase of one or more sequences of a first input signal and a phase of one or more sequences of a second input signal; and a cross-correlator to cross-correlate the first and second input signals based on at least one bit provided by the transformation unit, the cross-correlator including: an accumulation unit to provide a real cross-correlated signal and an imaginary cross-correlated signal, a first multiplier to multiply the real cross-correlated signal, a second multiplier to multiply the imaginary cross-correlated signal, and a cross-correlation controller to provide a real component of the first and second input signals and an imaginary component of the first and second input signals to the accumulation unit, wherein the first multiplier is configured to multiply the real cross-correlated signal by two and the second multiplier is configured to multiply the imaginary cross-correlated signal by two.