APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING UPLINK DATA RETRANSMISSION REQUEST IN A CDMA COMMUNICATION SYSTEM

摘要

Disclosed is a CDMA communication system having a DL_DPCH including a DL_ DPCCH and a DL_DPDCH. The DL_DPCCH includes a transport power control (TPC) field transmitting a TPC command for controlling uplink transport power, a transport format combination indicator (TFCI) field transmitting TFCI indicating a transport format combination of a currently transmitted channel, and a pilot field transmitting a pilot. The DL_DPDCH includes first and second data fields transmitting downlink data. If data is normally received over an enhanced uplink dedicated channel (EUDCH), ACK information is generated, and if data is abnormally received over the EUDCH, NACK information is generated. Bits corresponding to the ACK or NACK information are punctured at a position randomly selected from the first and second data fields of the DL_DPDCH, and the ACK or NACK information is inserted into the punctured position before being transmitted.