Method and user equipment for transmitting uplink control information

摘要

A user equipment (UE) transmits uplink control information (UCI) of 3 bits or more to a base station (BS) after modulating the UCI into 1-bit or 2-bit sub-UCI units. Here, the UE maps each 1-bit or 2-bit sub-UCI unit to one of a plurality of corner constellation points regardless of modulation order of data which is multiplexed with the UCI. The corner constellation points are points having a maximum Euclidean distance from among a plurality of constellation points corresponding to the modulation order.

主权项

1. A method for transmitting n-bit uplink control information (UCI) from a user equipment in a wireless communication system, where n is a positive integer equal to or greater than 3, the method comprising:
dividing the n-bit UCI into ceiling (n/2) sub-groups; encoding each of the sub-groups according to a table having the form:QmEncoded UCI2[onUCI on+1UCI onUCI on+1UCI on+2UCI on+2UCI]4[onUCI on+1UCI x x onUCI on+1UCI x x on+2UCI on+2UCI x x]6[onUCI on+1UCI x x x x onUCI on+1UCI x x x x on+2UCI on+2UCI x x x x];  and transmitting the encoded UCI on a physical uplink data channel that carries the UCI, wherein Qm represents a modulation order of uplink data, wherein the modulation order is QPSK (Quadrature Phase Shift Keying), 16QAM (16-Quadrature Amplitude Modulation) or 64QAM(64-QAM) when a value of Qm is 2, 4 or 6 respectively, wherein onUCI represents the nth bit of a predefined input bit sequence oUCI, wherein the on+2UCI is equal to (onUCI+on+1UCI) mod 2, and wherein ‘x’ represents a placeholder for maximizing Euclidean distance of modulation symbols that carries each of the sub-groups when bits of each of the sub-groups are scrambled.