| 摘要 |
<p>A DS-CDMA multi-user interference canceller is provided with a notifying unit for notifying symbol information, a delay of each path and transmission estimation value information of each path to other users. A correlation value calculator calculates cross correlation values with spread code sequences of other users in advance, an interference calculator calculates interference components of other users on the basis of notified information and the cross correlation values. A subtracter removes the interference components from the signal component of the present user, whereby the interference components are generated and cancelled at a symbol rate after a reception signal is subjected to despreading. Another aspect of the present invention provides a multi-user interference canceller for receiving spread signals from a plurality of users and cancels interference components between the data of the signals to decode the transmitted data.</p> |
