TARGET VALUE CONTROL METHOD FOR TRANSMISSION POWER CONTROL, BASE STATION CONTROL DEVICE AND MOBILE STATION USED FOR THE SAME

摘要

When a reception data block has no error (S1: NO), a target SIRt is updated by a reduction amount according to the count CBN having no reception data block error continuously (S3). That is, when the CBN is 1 to 100, reduction is made by DeltaSIRtxBLERt/(1-BLERt) (Here, the BLERt is a target block error ratio). When the CBN is 101 to 200, reduction is made by 2xDeltaSIRtxBLERt/(1-BLERt). When the CBN is 201 to 300, reduction is made by 3xDeltaSIRtxBLERt/(1-BLERt). Thus, it is possible to rapidly reduce the reception level.