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 ΔSIRt×BLERt/(1−BLERt) (Here, the BLERt is a target block error ratio). When the CBN is 101 to 200, reduction is made by 2×ΔSIRt×BLERt/(1−BLERt). When the CBN is 201 to 300, reduction is made by 3×ΔSIRt×BLERt/(1−BLERt). Thus, it is possible to rapidly reduce the reception level.