INTERFERENCE CANCELING METHOD, INTERFERENCE CANCELING DEVICE AND RECEIVING DEVICE

摘要

To more accurately reduce multiple access interference by appropriately generating interference replica signals in accordance with the state of the signal being handled in each stage. In a multi-user receiver using a multi-stage interference canceller, searchers 4S1U1-4S3Uk are provided for path detection of the respective multipaths of first through k-th users in each stage, and path information is obtained from the same input reception signals as the input reception signals supplied to the IGU's (interference replica generating units) 5S1U1-5S3Uk of each stage. At the IGU's 5S1U1-5S3Uk, rake combining reception, replica signal generation and the like are performed based on path information supplied from the searchers 4S1U1-4S3Uk. In the first and second stages, interference replica signals of the respective users are generated, and in the third stage, reception information data is obtained by rake combining reception from reception signals with the multiple access interference removed by means of these interference replica signals.