| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve accuracy in error correction when applying the result of joint detection demodulation to an error-correction decoding system. <P>SOLUTION: Path selection sections 105a to 105n cut signals other than effective paths such as noise from respective delay profiles, output respective channel estimated values obtained by selecting only the effective paths to a JD demodulation section 106, and output the receiving levels of the effective paths to multipliers 108a to 108n. The JD demodulation section 106 performs joint detection operation to multiply the matrix calculation results by reception signals outputted from a delay section 103. A distribution section 107 distributes soft decision data of each user for each user. Error-correction decoding sections 109a to 109n perform hard decision on the soft decision data to obtain demodulation data of each user. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
