METHOD AND APPARATUS FOR PERFORMING HYBRID AUTOMATIC REPEAT REQUEST IN WIRELESS COMMUNICATION SYSTEM

摘要

The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method and an apparatus for performing a Hybrid automatic repeat request (HARQ) for reducing latency in wireless communication systems are provided. The method includes receiving a concatenated packet including a short transmission time interval (TTI) packet and a long TTI packet from a transmitter, decoding the short TTI packet, feeding, when decoding the short TTI packet fails, a negative acknowledgement (NACK) back to the transmitter, and receiving a retransmission packet including the short TTI packet and the long TTI packet from the transmitter.