| 摘要 |
PROBLEM TO BE SOLVED: To provide a multicarrier CDMA receiver capable of realizing an improved reception quality. SOLUTION: The multicarrier CDMA receiver of this invention comprises a demodulation section for demodulating a subcarrier signal after Fourier transform and a decoding section 17 for decoding the demodulated data, and the demodulation section includes: an after-inverse-spread amplitude calculation section 11 for calculating the amplitude of a symbol after inverse spread processing on the basis of a channel estimate value of each subcarrier signal; a discrimination threshold value generating section 12 for calculating a discrimination threshold value on the basis of the amplitude of the symbol after the inverse spread processing; a data demodulation section 13 for demodulating the signal after the inverse spread processing on the basis of the threshold value; an amplitude synthesis section 14 for calculating a synthesized amplitude of the pilot symbol by each subcarrier group on the basis of the channel estimate value of each subcarrier signal; a weight generating section 15 for generating a weight on the basis of the synthesized amplitude; and a multiplier 16 for weighting the demodulated data. COPYRIGHT: (C)2004,JPO |
