Patent ID: 6999502

Claim:
A method for receiving a CDMA signal, comprising an operation of correlation with appropriate pseudo-random sequences, an operation of synchronization for locating data in the correlation signal obtained, and an operation of retrieving data, this method further comprising: the synchronization operation comprising implementing double delayed multiplication of the sampled correlation signal by performing a first delayed multiplication comprising multiplying a sample of the correlation signal by the conjugate preceding sample, then implementing a second delayed multiplication comprising multiplying a sample of the signal thus obtained by the conjugate preceding sample of said signal obtained, wherein, the correlation signal is a complex signal with a real component I k and an imaginary component Q k , the signal obtained after the first delayed multiplication is in turn complex having a real component (DOT (1) k ) and an imaginary component (CROSS (1) k ): wherein for performing the first delayed multiplication, the quantity I k I k-1 +Q k Q k-1 is calculated, supplying the real component (DOT (1) k ) of the new signal, the quantity Q k I k-1 −I k Q k-1 is calculated, supplying the component CROSS (1) k of the new signal, and wherein for performing the second delayed multiplication, the quantity (DOT (1) k ) (DOT (1) k-1 )+(CROSS (1) k )(CROSS (1) k-1 ) is calculated, giving the real component (DOT (2) k ) the final signal, and the quantity (DOT (1) k-1 )(CROSS (1) k )-DOT (1) k (CROSS (1) k-1 ) is calculated, giving the imaginary component (CROSS (2) k ) of the final signal.