APPARATUS AND METHOD FOR TRANSMITTING ACK/NACK SIGNAL IN MULTIPLE COMPONENT CARRIER SYSTEM

摘要

PURPOSE: A transmitting device and a method of ACK/NACK signal in a multi-component carrier system is provided to solve an ambiguity of a transmission timing of ACK/NACK signal by setting the transfer timing of ACK/NACK signal of sub-serving cell to a transmission timing of ACK/NACK signal of main-serving cell. CONSTITUTION: A base station transmits an upturn/downtrend set up message to a terminal(S1100). A terminal applies an up/down setting to each serving cell based on an up/down setting meassage(S1105). A base station transmits a mapped block to a terminal by mapping at least one of a transmission block over at least one down link sub frame at PDSCH based on up/down setting of each serving cell. A terminal generates ACK/NCAK signal(S1115). A terminal transmits an ACK/NACK signal at an adaptive rate transmission timing or to a common transmission timing by mapping to PUCCH of a main serving cell(S1120). [Reference numerals] (AA) Base station; (BB) Terminal; (CC) Common transmission timing; (S1100) Up/down setting message; (S1105) Applying up/down setting to each serving cell; (S1110) Transmitting a transmission block for each serving cell; (S1115) Generating an ACK/NACK signal; (S1120) ACK/NACK signal(mapping to PUCCH of a PCell)