| CPC H04W 72/21 (2023.01) [H04L 1/1812 (2013.01); H04L 5/0048 (2013.01); H04L 5/0055 (2013.01); H04W 72/56 (2023.01)] | 20 Claims |

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1. A method performed by a terminal in a communication system, the method comprising:
receiving, from a base station, configuration information for an uplink control information (UCI) multiplexing operation with different priorities on a physical uplink shared channel (PUSCH);
obtaining UCI sequences including a high priority hybrid automatic repeat request acknowledgement (HP HARQ-ACK), a low priority HARQ-ACK (LP HARQ-ACK), and channel state information (CSI) part 1, respectively;
performing an encoding of the UCI sequences;
performing a rate matching of the encoded UCI sequences;
multiplexing the rate-matched UCI sequences to the PUSCH; and
transmitting, to the base station, uplink data with the multiplexed HP HARQ-ACK, LP HARQ-ACK, and CSI part 1 on the PUSCH,
wherein a rate matching of the LP HARQ-ACK is performed based on following equation:
![]() where OLP ACK is a number of LP HARQ-ACK bits, LLP ACK is a number of cyclic redundancy check (CRC) bits, βoffsetLP_ACK is a beta offset for the LP HARQ-ACK, Nsymb,allPUSCH is a number of symbols for the PUSCH, MscUCI a number of subcarriers for the symbols for the PUSCH, Kr is a size of code block r, α is configured value from the base station, and Q′ACK/CG-UCI is a number of symbols for other HARQ-ACK.
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