Patent ID: 6947489
Filing Date: 2005-09-20
Classification: H04L

Abstract:
1. In a burst-type communication system comprising a transmitter and a receiver, a method of communicating information in a preamble synchronization sequence of a burst transmission, comprising: selecting, at the transmitter, a selected one of a plurality of initial detection sequences, representing one or more first preamble information bits; selecting, at the transmitter, a selected one of a plurality of unique words, representing one or more second preamble information bits; transmitting, at the transmitter, said preamble synchronization sequence comprising said selected one initial detection sequence and said selected one unique word; receiving, at the receiver, said preamble synchronization sequence; detecting, at the receiver, said one initial detection sequence to produce first time synchronization information and to receive said one or more first preamble information bits; and detecting, at the receiver, said one unique word to produce second time synchronization information and to receive said one or more second preamble information bits; wherein the plurality of initial detection sequences comprises one or more pairs of initial detection sequences, wherein each pair of initial detection sequences comprises a first initial detection sequence and a second initial detection sequence, said second initial detection sequence being a logical inverse of said first initial detection sequence.