Method for transmitting uplink control information of terminal in wireless communication system and terminal using method

A user equipment (UE) configured to operate in a wireless communication system, the UE comprising:

• a transceiver configured to transmit and receive radio signals;
• and
• a processor configured to operate in conjunction with the transceiver,
• wherein the processor is further configured to:
• receive a higher layer signal for a plurality of physical uplink control channel (PUCCH) resources;
• receive downlink control information (DCI);
• generate uplink control information, and
• transmit the uplink control information, based on the higher layer signal and the DCI, to a base station using a specific PUCCH format among a plurality of PUCCH formats,
• wherein the uplink control information comprises hybrid automatic repeat and request-acknowledge (HARQ-ACK) information,
• wherein the specific PUCCH format is determined based on a number of symbols used for transmission of the uplink control information in a time domain and a number of bits of the uplink control information,
• wherein the plurality of PUCCH formats comprise:
• PUCCH format 0 in which the number of symbols used for transmission of the uplink control information in the time domain is 1 or 2 and the number of bits of the uplink control information is 1 or 2,
• PUCCH format 1 in which the number of symbols used for transmission of the uplink control information in the time domain is 4 or more and the number of bits of the uplink control information is 1 or 2,
• PUCCH format 2 in which the number of symbols used for transmission of the uplink control information in the time domain is 1 or 2, and the number of bits of the uplink control information is more than 2,
• PUCCH format 3 or PUCCH format 4 in which the number of symbols used for transmission of the uplink control information in a time domain is 4 or more and the number of bits of the uplink control information is more than 2,
• wherein the DCI comprises (i) a PUCCH resource indicator field informing of a PUCCH resource among the plurality of PUCCH resources and (ii) a slot timing indicator field informing of a slot where the specific PUCCH format is to be transmitted, and
• wherein the specific PUCCH format is transmitted based on the PUCCH resource informed by the PUCCH resource indicator field in the slot informed by the slot timing indicator field.