Method and apparatus for transmitting a plurality of uplink control information on a physical uplink control channel in a wireless communication system

A user equipment (UE) configured to transmit uplink control information (UCI) on a physical uplink control channel (PUCCH) in a wireless communication system, the UE comprising:

• a radio frequency (RF) module configured to transmit and receive a radio signal;
• and a process or functionally connected to the RD module, wherein the processor is configured to:
• receive, from a base station, control information related to a PUCCH resource for transmitting the UCI, wherein the control information includes (i) first information related to a number of resource elements (REs) of the PUCCH resource, (ii) second information related to a modulation order, and (III) third information related to a configured maximum code rate;
• determine a specific PUCCH resource among the PUCCH resources by comparing, with a size of a payload for the UCI, values that are equal to a product of the configured maximum code rate, the modulation order, and a number of REs for each of the PUCCH resources;
• and transmit, to the base station, the UCI on the specific PUCCH resource, wherein the PUCCH resources are indexed according to the product of (i) the number of REs for each of the PUCCH resources, (ii) the modulation order, and (iii) the configured maximum code rate, wherein the specific PUCCH resource is a PUCCH resource corresponding to a lowest index among PUCCH resources that are equal to or greater than the size of a payload of the UCI, among the indexed PUCCH resources.