A method of transmitting, by a user equipment, LTE, uplink control information, UCI, on a physical uplink control channel, PUCCH, in a wireless communication system, the method comprising: receiving, from a base station, control information related to resource configuration of the PUCCH for transmitting the UCI; determining, based on the control information, a first value representing a total output number of coded bits for transmitting the UCI on the PUCCH, wherein the UCI comprises a UCI first part and a UCI second part; wherein the UCI includes channel state information, CSI; wherein the CSI comprises a CSI first part and a CSI second part; and the UCI first part comprises the CSI first part, and the UCI second part consists of the CSI second part; the method further comprising: determining a size of the UCI first part, wherein the size of the UCI first part is determined as the minimum of (i) the first value and (ii) a second value, wherein the second value is determined based on ( [first parameter ÷ second parameter ÷ third parameter] × third parameter), wherein ⌈ ⋅ ⌉ is a ceiling function, and wherein the first parameter represents the number of payload bits of the UCI first part, the second parameter represents a configured maximum coding rate for the PUCCH, and the third parameter represents a modulation order for the PUCCH; determining a size of the UCI second part as the size of the UCI first part subtracted from the first value, and transmitting, to the base station, the UCI on the PUCCH comprising the UCI first part in conformity with the determined size of the UCI first part and the UCI second part in conformity with the determined size of the UCI second part. receiving, from a base station, control information related to resource configuration of the PUCCH for transmitting the UCI; determining, based on the control information, a first value representing a total output number of coded bits for transmitting the UCI on the PUCCH, wherein the UCI comprises a UCI first part and a UCI second part; wherein the UCI includes channel state information, CSI; wherein the CSI comprises a CSI first part and a CSI second part; and the UCI first part comprises the CSI first part, and the UCI second part consists of the CSI second part; the method further comprising: determining a size of the UCI first part, wherein the size of the UCI first part is determined as the minimum of (i) the first value and (ii) a second value, wherein the second value is determined based on ( [first parameter ÷ second parameter ÷ third parameter] × third parameter), wherein ⌈ ⋅ ⌉ is a ceiling function, and wherein the first parameter represents the number of payload bits of the UCI first part, the second parameter represents a configured maximum coding rate for the PUCCH, and the third parameter represents a modulation order for the PUCCH; determining a size of the UCI second part as the size of the UCI first part subtracted from the first value, and transmitting, to the base station, the UCI on the PUCCH comprising the UCI first part in conformity with the determined size of the UCI first part and the UCI second part in conformity with the determined size of the UCI second part. determining a size of the UCI first part, wherein the size of the UCI first part is determined as the minimum of (i) the first value and (ii) a second value, wherein the second value is determined based on ( [first parameter ÷ second parameter ÷ third parameter] × third parameter), wherein ⌈ ⋅ ⌉ is a ceiling function, and wherein the first parameter represents the number of payload bits of the UCI first part, the second parameter represents a configured maximum coding rate for the PUCCH, and the third parameter represents a modulation order for the PUCCH; determining a size of the UCI second part as the size of the UCI first part subtracted from the first value, and transmitting, to the base station, the UCI on the PUCCH comprising the UCI first part in conformity with the determined size of the UCI first part and the UCI second part in conformity with the determined size of the UCI second part.