METHOD OF RETRANSMITTING DATA SIGNAL IN WIRELESS COMMUNICATION SYSTEM

摘要

A method of retransmitting a data signal in wireless communication system is provided to increase system performance by improving a data signal transmission method efficiently. In a method of retransmitting a data signal in wireless communication system, a terminal(UE) transmits a data signal to a base station(BS)(S110). The base station transmits an uplink grant(Uplink grant for retransmission) for retransmission to the terminal(S120). A terminal receiving the uplink grant for retransmission determines a decoding failure of data signal of the base station. The terminal retransmits a data signal by using the uplink grant for retransmission to the base station(S130). The terminal transmits data signal by using a received uplink grant in transmitting data signal to the base station.