초록 ▼

Waveform estimating section 302 observes the amplitude and phase of pilot signals outputted from pilot despreading section 301, and estimates the amplitude, frequency and phase of the pilot signals having no interference. Sine wave generating section 303 generates pilot signals of sine wave of the e

Waveform estimating section 302 observes the amplitude and phase of pilot signals outputted from pilot despreading section 301, and estimates the amplitude, frequency and phase of the pilot signals having no interference. Sine wave generating section 303 generates pilot signals of sine wave of the estimated amplitude, frequency and phase. Coherent detecting section 305 corrects the phase shift of data signals outputted from data channel despreading section 304, using the generated pilot signals.

대표청구항 ▼

[ What is claimed is:] [1.]1. A wireless communication apparatus, comprising:a pilot despreader that despreads received signals using spread codes for a pilot channel and detects despread pilot signals;a frequency offset estimator that determines a time constant by estimating a frequency offset amou

[ What is claimed is:] [1.]1. A wireless communication apparatus, comprising:a pilot despreader that despreads received signals using spread codes for a pilot channel and detects despread pilot signals;a frequency offset estimator that determines a time constant by estimating a frequency offset amount employed by pilot signals before an interference due to fading is added;a filter that reduces said interference added to said pilot signals in accordance with said time constant;a data despreader that despreads the received signals using spread codes for a data channel and detects despread data signals; anda coherent detector that coherently detects the despread data signals using said pilot signals having said reduced interference.