Patent ID: 8891479

Claim:
A method for transmitting uplink control information by a communication apparatus configured with a plurality of cells including a primary cell and a secondary cell in a wireless communication system, the method comprising: selecting a PUCCH (Physical Uplink Control Channel) resource corresponding to HARQ-ACK (Hybrid Automatic Repeat reQuest-Acknowledgement)(0), HARQ-ACK(1) and HARQ-ACK(2) from a plurality of PUCCH resources, according to a relation including Table 1; and transmitting b(0)b(1) corresponding to the HARQ-ACK (0), the HARQ-ACK(1) and the HARQ-ACK(2) using the selected PUCCH resource, wherein the b(0)b(1) is given according to the relation including Table 1, TABLE 1 HARQ- HARQ- HARQ- ACK(0) ACK(1) ACK(2) n (1) PUCCH, i b(0)b(1) ACK ACK NACK/DTX n (1) PUCCH, 0 11 ACK NACK NACK/DTX n (1) PUCCH, 0 10 NACK ACK NACK/DTX n (1) PUCCH, 0 01 NACK NACK DTX n (1) PUCCH, 0 00 NACK/DTX NACK/DTX ACK n (1) PUCCH, 2 11 NACK/DTX NACK/DTX NACK n (1) PUCCH, 2 00 where the HARQ-ACK(0) and the HARQ-ACK(1) indicate ACK/NACK(Negative ACK)/DTX(Discontinuous Transmission) responses to data blocks related to a first cell, the HARQ-ACK(2) indicates ACK/NACK/DTX response to a data block related to a second cell, n(1)PUCCH, i (i=0, 1, 2) indicates the plurality of PUCCH resources, n(1)PUCCH,0 indicates a PUCCH resource linked to a PDCCH (Physical Downlink Control Channel) on the first cell, and n(1)PUCCH,2 indicates a PUCCH resource linked to a PDCCH on the second cell.