Patent ID: 8705446

Claim:
A base station performing wireless communication with the mobile station, comprising: a first reception unit for receiving predetermined data from said mobile station through a first physical channel; a transmission unit for decoding said data in the physical layer and transmitting said decoded result through a second physical channel; a second reception unit for receiving first control information generated based on said decoded result through a third physical channel, wherein said transmission unit transmits second control information through said second physical channel to said mobile station in order to retransmit the data from the beginning in a case when it cannot specify a number of retransmissions from the first control information; and a judgment unit that checks whether the following retransmission control conditions are satisfied: Retransmission Sequence Number (RSN) that is included in said first control information equals 3; a compressed mode is under operation; and Transmission Time Interval (TTI) equals 10 ms, wherein said transmission unit executes said retransmission control when said retransmission control conditions are satisfied, and wherein said first physical channel is an Enhanced Dedicated Physical Data Channel (E-DPDCH), said second physical channel is an E-DCH Hybrid ARQ Indicator Channel (E-HICH), and said third physical channel is an Enhanced Dedicated Physical Control Channel (E-DPCCH).