cell in case of the change in the best cell then the node b performs hsdpa scheduling on the new best cell from now on the fcs scheme is a method for rapidly selecting the cell with a good channel state among a plurality of cells when a ue using hsdpa is located in a cell overlapping area such as soft handover region for example if the ue using hsdpa enters the cell overlapping area between the old node b and the new node b the ue establishes radio links to a plurality of cells or node bs herein a set of the cells whose radio links are established to the ue is called an active set the ue receives packet data for hsdpa only from the cell maintaining the best channel state among the cells included in the active set thereby reducing the overall interference herein the cell maintaining the best channel state among the cells included in the active set is called a best cell to this end the ue periodically detects channel states of the cells belonging to the active set to monitor whether there is any cell having a channel state better than that of current best cell if any cell having the better channel state exists the ue transmits a best cell indicator and the like to the cells.