Method for transmitting control information and apparatus therefor, and method for receiving control information and apparatus therefor

An user equipment (UE) configured to have a plurality of cells including a primary cell and a secondary cell and transmit uplink control information in a wireless communication system, the UE comprising:

• a radio frequency (RF) unit;
• and
• a processor,
• wherein the processor is configured to identify Hybrid Automatic Repeat reQuest-Acknowledgement (HARQ-ACK)(0), HARQ-ACK(1), HARQ-ACK(2) and HARQ-ACK(3), and to bits b(0)b(1) using a Physical Uplink Control Channel (PUCCH) resource based on the HARQ-ACK(0), the HARQ-ACK(1), the HARQ-ACK(2) and the HARQ-ACK(3), according to a relation including Table 1:
• TABLE 1
• HARQ-ACK(0)
• HARQ-ACK(1)
• HARQ-ACK(2)
• HARQ-ACK(3)
• n(1)PUCCH, i
• b(0)b(1)
• ACK
• ACK
• NACK/DTX
• NACK/DTX
• n(1)PUCCH, 0
• 11
• ACK
• NACK
• NACK/DTX
• NACK/DTX
• n(1)PUCCH, 0
• 10
• NACK
• ACK
• NACK/DTX
• NACK/DTX
• n(1)PUCCH, 0
• 01
• NACK
• NACK
• NACK/DTX
• NACK/DTX
• n(1)PUCCH, 0
• 00
• where the HARQ-ACK(0) and the HARQ-ACK(1) indicate ACK/NACK/DTX responses to data blocks related to the primary cell, the HARQ-ACK(2) and the HARQ-ACK(3) indicate ACK/NACK/DTX responses to data blocks related to the secondary cell, and n(1)PUCCH,0 indicates a PUCCH resource linked to a PDCCH (Physical Downlink Control Channel) on the primary cell.

A method for receiving uplink control information by a base station (BS) configured with a plurality of cells including a primary cell and a secondary cell in a wireless communication system, the method comprising:

• receiving bits b(0)b(1) using a Physical Uplink Control Channel (PUCCH) resource;
• and
• identifying Hybrid Automatic Repeat reQuest-Acknowledgement (HARQ-ACK)(0), HARQ-ACK(1), HARQ-ACK(2) and HARQ-ACK(3) based on the b(0)b(1) and the PUCCH resource, according to a relation including Table 1,
• TABLE 1
• HARQ-ACK(0)
• HARQ-ACK(1)
• HARQ-ACK(2)
• HARQ-ACK(3)
• n(1)PUCCH, i
• b(0)b(1)
• ACK
• ACK
• NACK/DTX
• NACK/DTX
• n(1)PUCCH, 0
• 11
• ACK
• NACK
• NACK/DTX
• NACK/DTX
• n(1)PUCCH, 0
• 10
• NACK
• ACK
• NACK/DTX
• NACK/DTX
• n(1)PUCCH, 0
• 01
• NACK
• NACK
• NACK/DTX
• NACK/DTX
• n(1)PUCCH, 0
• 00
• where the HARQ-ACK(0) and the HARQ-ACK(1) indicate ACK/NACK/DTX responses to data blocks related to the primary cell, the HARQ-ACK(2) and the HARQ-ACK(3) indicate ACK/NACK/DTX responses to data blocks related to the secondary cell, and n(1)PUCCH,0 indicates a PUCCH resource linked to a PDCCH (Physical Downlink Control Channel) on the primary cell.

A base station (BS) configured to have a plurality of cells including a primary cell and a secondary cell and receive uplink control information in a wireless communication system, the BS comprising:

• a radio frequency (RF) unit;
• and
• a processor operatively coupled to the RF unit and configured to receive bits b(0)b(1) using a Physical Uplink Control Channel (PUCCH) resource, and to identify Hybrid Automatic Repeat reQuest-Acknowledgement (HARQ-ACK)(0), HARQ-ACK(1), HARQ-ACK(2) and HARQ-ACK(3) based on the b(0)b(1) and the PUCCH resource, according to a relation including Table 1:
• TABLE 1
• HARQ-ACK(0)
• HARQ-ACK(1)
• HARQ-ACK(2)
• HARQ-ACK(3)
• n(1)PUCCH, i
• b(0)b(1)
• ACK
• ACK
• NACK/DTX
• NACK/DTX
• n(1)PUCCH, 0
• 11
• ACK
• NACK
• NACK/DTX
• NACK/DTX
• n(1)PUCCH, 0
• 10
• NACK
• ACK
• NACK/DTX
• NACK/DTX
• n(1)PUCCH, 0
• 01
• NACK
• NACK
• NACK/DTX
• NACK/DTX
• n(1)PUCCH, 0
• 00
• where the HARQ-ACK(0) and the HARQ-ACK(1) indicate ACK/NACK/DTX responses to data blocks related to the primary cell, the HARQ-ACK(2) and the HARQ-ACK(3) indicate ACK/NACK/DTX responses to data blocks related to the secondary cell, and n(1)PUCCH,0 indicates a PUCCH resource linked to a PDCCH (Physical Downlink Control Channel) on the primary cell.