Patent ID: 6389058
Filing Date: 2002-05-14
Classification: H04B

Abstract:
An apparatus for performing a fast acquisition of PN sequence by transmitting a distributed sample, comprising:a first spreader to spread a data stream over a prescribed spectrum by using a locally generated first main sequence and to sample a state of the first main sequence; a sample spreader to receive a first state sample from the first spreader, to generate at least one corresponding binary orthogonal symbol having a prescribed length, and to output a first state signal generated by spreading the at least one binary orthogonal symbol according to a locally generated first igniter sequence; a sample despreader coupled to reconstruct the at least one binary orthogonal symbol by despreading the first state signal received from the sample spreader according to a locally generated second igniter sequence, and to detect the first state sample of the first main sequence therefrom; and a first despreader to execute a comparison-correction operation on the first state sample received from the sample despreader using a locally generated second state sample for a prescribed number of times, to generate a second main sequence having a new state, and to reconstruct the data stream by despreading a data signal received from the first spreader according to the second main sequence.