Method for the acquirement of synchronism between base station and portable phone in a digital cordless telephony system.

摘要

The object of the present invention is to identify a method for the acquirement of the synchronism between base station and portable phone in a digital cordless telephony system. The method consists of: carrying out a permanent research on autocorrelation functions of the received signal using a first threshold signal (S1); defining the locking of the portable phone on the time slot having caused a peak higher than the above mentioned first threshold; limiting the reception in the following half frame to a window of +/- K bit around the peak pointed out reducing simultaneously the threshold to a second level S2; verifying in the following half frame the correctness of the time slot received after the above mentioned locking by analysing the control bits CRC associated in each time slot to the signalling and traffic bits.