LLR COMBINING METHOD FOR HYBRID AUTOMATIC RETRANSMISSION IN A WIRELESS COMMUNICATION SYSTEM AND AN APPARATUS THEREOF, CAPABLE OF EFFECTIVELY UTILIZING THE LIMITED RESOURCE BY REDUCING THE NUMBER OF LLR BITS OF A TRANSMITTED PACKET

摘要

PURPOSE: An LLR(Log-Likelihood Ratio) combining method for hybrid automatic retransmission in a wireless communication system and an apparatus thereof are provided to obtain the reliability of the transmission signal estimation by combining the LLR accurately for retransmission of hybrid retransmission.;CONSTITUTION: An LLR joint(301) combines the LLR of the previously received packet with the LLR of the received packet. An LLR buffer(302) stores the LLR of the previously received packet. A hybrid automatic retransmission controller(303) decides the retransmission status of the received packet. The hybrid automatic retransmission controller passes the transmitted packet for the initial transmission packet by implementing the LLR combining.;COPYRIGHT KIPO 2010