Method and device for transmitting an uplink control signal in a wireless communication system

摘要

Provided are a method and a device for transmitting an uplink control signal in a wireless communication system. User equipment selects uplink (UL) secondary component carrier (SCC) from a plurality of physical uplink shared channel (PUSCH)-scheduled UL SCCs in a carrier aggregation (CA) system including a plurality of UL component carriers (CCs), and transmits uplink control information (UCI) by piggybacking it on the PUSCH scheduled for the selected single UL SCC. Herein, the PUSCH is not scheduled for a primary CC (PCC) of the CA system.

主权项

1. A method of transmitting an uplink control signal in a carrier aggregation (CA) system including a plurality of uplink (UL) component carriers (CCs), the method performed by a user equipment and comprising:
determining whether a physical UL shared channel (PUSCH) is not scheduled in a primary CC (PCC) of the CA system; when it is determined that the PUSCH is not scheduled in the PCC of the CA system, selecting one UL secondary CC (SCC) among a plurality of UL SCCs in which the PUSCH is scheduled, and wherein the one UL SCC is selected according to a priority which is set by higher layer signaling; and when it is determined that the PUSCH is not scheduled in the PCC of the CA system, piggybacking and transmitting a UL control information (UCI) of the PCC on the PUSCH of the selected UL SCC.