PRECODING WEIGHT GENERATION METHOD AND CONTROL DEVICE

摘要

In a joint transmission environment, the disclosed precoding weight generation method and control device decrease interference between mobile terminal devices even when not all the mobile terminal devices feed back CSI. For each coordinating cell, a channel array is generated which is configured from CSI from the spatially multiplexed multiple mobile terminal devices (UEs), and on the basis of this channel matrix, precoding weights are sequentially generated from the cells having many mobile terminal devices (UEs) that feed back CSI. When data is sent to a mobile terminal device (UE#1) which feeds back CSI to cells other than the weight generation target cells that are precoding weight generation target cells, precoding weights are generated which do not suppress interference for a mobile terminal device (UE#2) feeding back CSI to non-weight generation target cells, but which do suppress interference for mobile terminal devices (UE#3,#4) which are not feeding back CSI to non-weight generation target cells.