Patent ID: 6865172

Claim:
A receiving method used in a radio system comprising at least one base station ( 1 , 2 ) and subscriber terminal equipment ( 3 - 5 ) which base station ( 1 , 2 ) and subscriber terminal equipment ( 3 - 5 ) multiply a signal by a spreading code and look for one or more propagation delays of the received signal when the signal has propagated on one or more paths, characterized by convolution transforming the received signal; convolution transforming the spreading code of the receiver; multiplying the transformed signal ( 36 ) and spreading code ( 37 ) to provide a product ( 38 ); shifting the phase of the product ( 38 ) by an amount dependent on the propagation delay; and inverse convolution transforming the phase-shifted product ( 39 ) and combining the components of the transmitted signal that have propagated on different paths, whereby the information of the signal can be detected.