Patent ID: 7170884
Filing Date: 2007-01-30
Classification: H04L

Abstract:
1. A method of synchronizing at least one or more receivers to a transmitter within a transmission system with the use of a data stream with guard intervals, comprising the steps of inserting with the transmitter a special synchronization train into the data stream at a beginning of a transmission, said special synchronization train estimating a chronological position of a signal to be received and/or estimating a center frequency error between the transmitter and the receiver; forming the synchronization train of at least two different symbol sequences which are transmitted in alternation periodically; ascertaining the chronological position of the signal and/or the center frequency error between the transmitter and the receiver from a composite term of various symbol sequences within a predetermined interval; for a block synchronization using total metrics of at least two different symbol sequences used as the synchronization train; and selecting as a beginning of a block, whichever index minimizes the total metrics within the predetermined interval.