DATA TRANSMISSION/RECEPTION APPARATUS AND METHOD IN CDMA MOBILE COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a data transmission/reception apparatus and method for minimizing decoding errors during high-speed packet transmission in a CDMA mobile communication system. SOLUTION: When retransmitting data in the Hybrid Automatic Repeat Request ('H-ARQ') technique, the data transmission/reception apparatus and method performs symbol mapping on coded bits to be retransmitted by allocating different reliabilities to the coded bits according to the number of retransmission, thus resulting in an improvement in system performance. A system in accordance with this invention can increase work processing volume, by decreasing the bit error rate compared with conventional systems.