| 摘要 |
A mobile station apparatus capable of performing an efficient reception processing to suppress unnecessary power consumption. In this mobile station apparatus, a signaling detecting part (71) detects, from a signaling included in a DPCH as despread, a cap zone of a upstream compressed mode, that is, a zone in which no upstream signal is transmitted to any base stations, and notifies a control part (72) of the zone. If the transmission timings of ACK/NACK signals are included in the zone detected by the signaling detecting part (71), then the control part (72) causes an HS-PDSCH reception processing part (40) to stop the reception processings of the data packets corresponding to the ACK/NACK signals. |
