Patent ID: 7974331

Claim:
Rake receiver for receiving information symbols, comprising at least two fingers and a combiner coupled to said fingers, wherein each of the at least two fingers comprises a finger compensator that compensates for frequency shift at the symbol level, wherein said finger compensator comprises: a filter and an amplitude normalizes coupled serially configured to receive an input symbol signal and configured to generate an output symbol signal; and a first arithmetical module configured to multiply said input symbol signal with a conjugated previous input symbol signal and a second arithmetical module configured to multiply said output symbol signal with a previous output symbol signal, wherein at least one finger comprises: a pilot channel correlator and a traffic channel correlator, with an output of said finger compensator being coupled to first inputs of a third and fourth arithmetical module, of which second inputs are coupled to outputs of said correlators; and an averaging unit, of which an input is coupled to an output of said third arithmetical module and of which an output is coupled to a first input of a fifth arithmetical module, of which a second input is coupled to an output of said fourth arithmetical module.