DEVICE AND METHOD FOR TRANSMITTING CONTROL INFORMATION IN MULTI-CARRIER SYSTEM

摘要

Disclosed are a transmission device and method, and a receiving device and method of control information by a terminal in a multi-component carrier system. The present invention provides the method comprising: receiving on a component carrier a PDCCH that explicitly indicates a resource index of a PUCCH; receiving on said component carrier a PDSCH that is indicated by said PDCCH; calculating a cyclic shift sequence and an orthogonal sequence on the basis of said resource index; spreading to said cyclic shift sequence and said orthogonal sequence an ACK/NACK signal that indicates successful reception or unsuccessful reception of said PDSCH; mapping said spread ACK/NACK signal into said PUCCH; and transmitting said PUCCH to a base station. The invention can resolve the problem of resource indexes of uplink control channels colliding with each other. Thus, reliability of the transmission of control information is improved.