A METHOD AND AN APPARATUS FOR SYNCHRONISING A RECEIVER TIMING TO TRANSMITTER TIMING

摘要

The present invention is a known preamble (2) receiver and transmitter timing using a timing signal (1) relates to a method and apparatus for synchronizing (300, 400). A method and apparatus (300, 400) of the present invention, it is estimated on the basis of the normal cross-correlation power metric (3) (PNCC metric) is the signal power (4) and a noise floor power (5). According to the first embodiment, the cross-correlation function (CF2) based on the cross-correlation function (CF1) and the cross-correlation metric (3) based on the PNCC metric (6) is used to determine whether a synchronization event has occurred, Based on the analysis of the time index and PNCC size value, timing synchronization index is used to assimilate the receiver timing and transmitter timing is determined. According to the second embodiment, the cross-correlation function that is based on a metric PNCC (6) (CF1) are used to determine whether a synchronization event occurs, by using a clustering approach based on the analysis of the time index and PNCC size value timing synchronization index is determined.