Method and apparatus in a radio communication system

摘要

A method and a receiver apparatus for receiving a digital symbol sequence including at least one occurence of a predetermined training sequence. A first set of digitized antenna signals is generated (301) by receiving and digitizing a plurality of radio signals representing the transmitted digital symbol sequence. A plurality of quality estimates, reflecting the degree of match between the predetermined training sequence and each digitized antenna signal in the first set for different possible synchronization positions of each signal, are formed (302). A plurality of combined quality metrics are formed (303) by combining quality estimates of different digitized antenna signals in the first set. A subset of digitized antenna signals is selected (304) from the first set based on a analysis of the combined quality metrics. The selected subset of digitized antenna signals is processed to generate an estimate of the transmitted digital symbol sequence.