Communication method and apparatus for controlling data transmission and retransmission of mobile station at base station

A base station used in a wireless communication system, the base station comprising:

• an input unit for receiving scheduler input signals, retransmission limit number and an HARQ ACK/NACK;
• a control unit for determining a transmission operation to be performed by the mobile station in next transmission time interval based on information provided from the input unit, and to form downlink instructions including an ACK/NACK,
• an indicator indicating the type of the transmission by the mobile station, and a resource use command for the used resource based on the determined transmission operation;
• and
• an output unit for sending in a downlink a variety of instructions formed by the control unit.

A mobile station used in a wireless communication system, the mobile station comprising:

• an input unit for receiving a resource use command, an indicator indicating a transmission type and downlink HARQ signaling including ACK/NACK signaling from a base station, and to provide them to a control unit;
• a control unit for controlling the mobile station to perform a transmission operation corresponding to a downlink instruction received from the base station based on information provided from the input unit;
• and
• an output unit for transmitting a new data packet or retransmit data packet by using previously used resource or newly allocated resource according to a control signal from the control unit.