Abstract: A receiver includes a compressive factor generator configured to generate a compressive gain signal based on a digital demodulated received signal, a signal quality estimate, an upper modulation level, and a lower modulation level. The receiver includes a gain circuit configured to apply the compressive gain signal to the digital demodulated received signal. The compressive factor generator may include a peak tracking filter configured to generate a peak tracking signal based on the digital demodulated received signal and filter configuration information. The compressive factor generator may include a compression threshold generator configured to generate a modulation index based on the peak tracking signal, the signal quality estimate, the upper modulation level, and the lower modulation level. The compressive factor generator may include a compression curve and a gain compression hold and recovery processor.

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.