Method for transmitting control information and a device therefor

A method for transmitting uplink control information when a plurality of serving cells including a primary cell and a secondary cell are configured in a wireless communication system, the method comprising:nreceiving resource indication information through an Semi-Persistent Scheduling (SPS) activation Physical Downlink Control Channel (PDCCH), the resource indication information indicating one or more Physical Uplink Control Channel (PUCCH) format 1b resources based on a first set of PUCCH format 1b resources configured by a higher layer;receiving an SPS Physical Downlink Shared Channel (PDSCH) without a corresponding PDCCH in the primary cell after receiving the SPS PDCCH;selecting a PDCCH format 1b resource corresponding to a plurality of Hybrid Automatic Repeat request—Acknowledgements (HARQ-ACKs) from a second set of PUCCH format 1b resources, the plurality of HARQ-ACKs including reception response information for the SPS PDSCH and the second set of PUCCH format 1b resources including the one or more PUCCH format 1b resources on the basis of the resource indication information; andtransmitting a bit value corresponding to the plurality of HARQ-ACKs using the selected PUCCH format 1b resource,wherein one PUCCH format 1b resource is provided on the basis of the resource indication information when the primary cell is set to a first transmission mode supporting a transmission of up to one transport block, and a plurality of PUCCH format 1b resources is provided on the basis of the resource indication information when the primary cell is set to a second transmission mode supporting a transmission of up to two or more transport blocks, andwherein the SPS PDSCH carries only one transport block regardless of whether the primary cell is set to any of the first transmission mode or the second transmission mode.

A communication device configured to transmit uplink control information when a plurality of serving cells including a primary cell and a secondary cell are configured in a wireless communication system, the communication device comprising:nan Radio Frequency (RF) unit; anda processor,wherein the processor is configured:nto receive resource indication information through an Semi-Persistent Scheduling (SPS) activation Physical Downlink Control Channel (PDCCH), the resource indication information indicating one or more Physical Uplink Control Channel (PUCCH) format 1b resources based on a first set of PUCCH format 1b resources configured by a higher layer,to receive an SPS Physical Downlink Shared Channel (PDSCH) without a corresponding PDCCH in the primary cell after receiving the SPS PDCCH,to select a PDCCH format 1b resource corresponding to a plurality of Hybrid Automatic Repeat request—Acknowledgements (HARQ-ACKs) from a second set of PUCCH format 1b resources, the plurality of HARQ-ACKs including reception response information for the SPS PDSCH and the second set of PUCCH format 1b resources including the one or more PUCCH format 1b resources on the basis of the resource indication information, andto transmit a bit value corresponding to the plurality of HARQ-ACKs using the selected PUCCH format 1b resource,wherein one PUCCH format 1b resource is provided on the basis of the resource indication information when the primary cell is set to a first transmission mode supporting a transmission of up to one transport block and a plurality of PUCCH format 1b resources is provided on the basis of the resource indication information when the primary cell is set to a second transmission mode supporting a transmission of up to two or more transport blocks, andwherein the SPS PDSCH carries only one transport block regardless of whether the primary cell is set to any of the first transmission mode or the second transmission mode.