Patent ID: 6628699
Filing Date: 2003-09-30
Classification: H04B

Abstract:
A receiver for use in a spread spectrum communication system, the receiver comprising:an acquisition system including a bank of correlators wherein each correlator is initialized to a different search phase of a reference spreading signal so that the bank of correlators is configured to simultaneously correlate all possible search phases of an entire code range of the reference spreading signal against the acquired spread spectrum signal during each code period, where each correlator includes: a multiplication element configured to multiply the acquired spread spectrum signal with one of the all possible search phases of the reference spreading signal at consecutive sampling instants to produce a product signal; and an accumulation element configured to produce an accumulation output by accumulating the product signal over each code period; and a demodulation system including at least some of the correlators of the acquisition system configured to recover data embedded in the acquired spread spectrum signal by simultaneously correlating the acquired spread spectrum signal against all possible code phases of the reference spreading signal and identifying which code phase, if any, of the reference spreading signal is most correlated to the acquired spread spectrum signal.