TRANSCEIVER APPARATUS AND METHOD FOR EFFICIENT HIGH- SPEED DATA RETRANSMISSION AND DECODING IN CDMA MOBILE COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a transceiver apparatus and a method for efficient high- speed data retransmission and decoding in a code division multiple access (CDMA) mobile communication system.

SOLUTION: In the method for retransmitting coded bits from a transmitter in response to a retransmission request from a receiver, the method is provided with a step for determining the number of orthogonal codes available for the retransmission, a step for dividing the coded bits into the coded bits with higher priority and coded bits with comparatively lower priority, separating them into a plurality of sub-packets with a given size and selecting the sub-packet to repeatedly transmit at least one part out of the plurality of sub-packets corresponding to the determined number of the available orthogonal codes, and a step for transmitting a stream of symbols outputted by symbol mapping based on a prescribed modulation system to the coded bits in the selected sub- packet while using the determined available orthogonal codes.

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