Patent ID: 8391815

Claim:
A radio receiver configured to communicate with a radio transmitter which transmits data with a known symbol sequence arranged in a frame, said radio receiver comprising: a sampling unit for sampling a baseband signal transmitted from said radio transmitter at a fractional multiple of a symbol rate, wherein fractional-multiple-sampling data is generated; a provider for providing reference data in which said known symbol sequence is interpolated at a rate of said fractional multiple, wherein said interpolation reflects an overall filter characteristic of said radio transmitter and said radio receiver; an arithmetic operation unit for performing an arithmetic operation for evaluation data in which a degree of consistency in waveform between said fractional-multiple-sampling data and said reference data is evaluated; an estimator for estimating a reference timing from a shift amount at which said evaluation data shows a maximum degree of consistency in waveform; and a converter for converting said fractional-multiple-sampling data by using said reference timing as a reference wherein said frame having said symbol rate is recovered.