Patent Number: 6,310,856

Title: CDMA communications system having a searcher receiver and method therefor

Abstract: A wideband CDMA handset (20) has a receiver (50) which simplifies initial sequence acquisition. The receiver (50) includes an efficient searcher receiver (54) which searches for long code mask sequences (LMS) using two correlators (80, 100). The searcher receiver (54) determines the complex conjugate of the output of the first correlator (80), and uses it to remove the phase ambiguity of the output of the second correlator (100). Thus the second correlator (100) is able to perform multiple correlations at the same time. The searcher receiver (54) coherently combines the output of the second correlator (100) to improve the reliability of the search decision.

Inventors: Taipale; Dana John (Austin, TX)

Assignee: Motorola, Inc.

International Classification: H04B 1/707 (20060101); H04B 007/216 (); H04J 013/02 (); H04L 027/28 ()

Expiration Date: 10/30/2018