| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a sufficient effect with a little arithmetic amount and a little processing delay by removing the interference of a specified user signal to be applied to the other user signal with a replica generated from demodulated data. SOLUTION: A designation user designating part 103 applies the spreading code of the signals of a user #1 to a correlative part 104 and performs correlative operation between this code and a signal sampled by a radio part 102. Thus, the signal components of users #2 and #3 are suppressed. Based on this correlative arithmetic result, any line is estimated by a line estimating part 110, RAKE synteation is performed with this result and the correlative result of the correlative part 104, and the reception data of the user #1 are provided. Convolution population is performed to these data by a replica generating part 113, the replica is generated and the signal component of the user #1 is reproduced. When the data of the user #1 and the estimated result of the line estimating part 110 are correct, the signal component of the user #1 in the received signal can be reproduced. The replica generated by the replica generating part 113 is set to a substation part 114, and a difference from the output of the radio part 102 is calculated. Thus, the influence of the signal of the user #1 upon the users #2 and #3 is removed.</p> |
