Patent ID: 6891815

Claim:
A frame synchronization method using an optimal pilot pattern, comprising the steps of: receiving code sequences with the slot length of (2l+1) for a radio frame according to an arbitrary chip rate where l is an integer greater than or equal to 1; arranging the received code sequences corresponding to the slot length for the radio frame and performing auto correlation according to a reception location of the code sequences, and simultaneously, arranging the code sequences corresponding to the slot length for the radio frame and performing cross correlation according to a reception location of the code sequences; and observing the correlation results, to detect frame synchronization, wherein the step of performing correlation comprises the substeps of: performing a first cross correlation between a first code sequence and a second code sequence among the received code sequences according to the reception location, and simultaneously performing a second cross correlation between the second code sequence and the first code sequence which is shifted by a predetermined bit length.