Patent ID: 7577220

Claim:
An apparatus for readjustment of a sampling time in a radio receiver, comprising: means for determining a sampling time error in a first discrete-value received signal, and emitting a sampling time error signal in response thereto; a filter arrangement configured to filter the sampling time error signal and emit a filtered sampling time error signal in response thereto; and a correction element configured to input the first discrete-value received signal and the filtered sampling time error signal and emit a second discrete-value received signal comprising a corrected timing in accordance with the sampling time error, wherein the filter arrangement comprises a multi-rate filter that comprises at least two series connected individual filters and a sampling rate reduction stage arranged between the at least two series connected individual filters in order to produce the filtered sampling time error signal, wherein a rate change in the multi-rate filter is determined by a sampling rate at an output of the multi-rate filter being an integer multiple of a time slot frequency specified in a radio transmission standard used for transmitting the first discrete-value received signal.