Method for controlling transmission power in wireless communication system, and apparatus therefor
A method for controlling transmission power in a wireless communication system, and an apparatus therefor are disclosed in the disclosure. Specifically, the method for controlling uplink transmission power in a wireless communication system, that is performed by a terminal, may comprise the steps of: receiving from a base station power control configuration information with respect to a plurality of power control domains by means of higher layer signalling; receiving from the base station downlink control information (DCI) including transmission power control (TPC) information with respect to at least one of the plurality of power control domains; and performing uplink transmission using transmission power that is determined based on the power control configuration information and the TPC information.
1. A method of transmitting an uplink channel in a wireless communication system, the method performed by a user equipment (UE), the method comprising:
receiving, from a base station, downlink control information (DCI) including first transmission power control (TPC) information and second TPC information for the uplink channel; and
transmitting, to the base station, the uplink channel using transmission power determined based on the DCI,
wherein, based on the uplink channel being repeatedly transmitted, the transmission power for a first repetition of the uplink channel is determined based on the first TPC information and the transmission power for a second repetition of the uplink channel is determined based on the second TPC information, and
wherein the first TPC information and the second TPC information are respectively associated with the first repetition and the second repetition in a predetermined order.
2. The method of claim 1 , wherein a first uplink resource of the first repetition and a second uplink resource of the second repetition are identical to each other or are located differently from each other.
3. The method of claim 2 , wherein each of the first uplink resource and the second uplink resource comprises at least one of a resource block, a bandwidth part, or a carrier.
4. The method of claim 1 , wherein a first power control parameter of the uplink channel is determined based on the first TPC information and a second power control parameter of the uplink channel is determined based on the second TPC information, and
wherein the transmission power for a first repetition of the uplink channel is determined based on the first power control parameter and the transmission power for a second repetition of the uplink channel is determined based on the second first power control parameter.
5. A UE of transmitting an uplink channel in a wireless communication system, the UE comprising:
at least one transceiver for transmitting and receiving a radio signal; and
at least one processor for controlling the at least one transceiver,
wherein the at least one processor is configured to:
receive, from a base station, downlink control information (DCI) including first transmission power control (TPC) information and second TPC information for the uplink channel; and
transmit the uplink channel using transmission power determined based on the DCI,
wherein, based on the uplink channel being repeatedly transmitted, the transmission power for a first repetition of the uplink channel is determined based on the first TPC information and the transmission power for a second repetition of the uplink channel is determined based on the second TPC information, and
wherein the first TPC information and the second TPC information are respectively associated with the first repetition and the second repetition in a predetermined order.
6. The UE of claim 5 , wherein the first uplink resource of the first repetition and the second uplink resource of the second repetition are located differently from each other.
7. The UE of claim 6 , wherein each of the first uplink resource and the second uplink resource comprises at least one of a resource block, a bandwidth part, or a carrier.
8. The UE of claim 5 , wherein a first power control parameter of the uplink channel is determined based on the first TPC information and a second power control parameter of the uplink channel is determined based on the second TPC information, and
wherein the transmission power for a first repetition of the uplink channel is determined based on the first power control parameter and the transmission power for a second repetition of the uplink channel is determined based on the second first power control parameter.
9. A method of receiving an uplink channel in a wireless communication system, the method performed by a based station, the method comprising:
transmitting, to a user equipment (UE), downlink control information (DCI) including first transmission power control (TPC) information and second TPC information for the uplink channel; and
receiving, from the UE, the uplink channel based on the DCI,
wherein, based on the uplink channel being repeatedly transmitted, the transmission power for a first repetition of the uplink channel is determined based on the first TPC information and the transmission power for a second repetition of the uplink channel is determined based on the second TPC information, and
wherein the first TPC information and the second TPC information are respectively associated with the first repetition and the second repetition in a predetermined order.
10. The method of claim 9 , wherein a first power control parameter of the uplink channel is determined based on the first TPC information and a second power control parameter of the uplink channel is determined based on the second TPC information, and
wherein the transmission power for a first repetition of the uplink channel is determined based on the first power control parameter and the transmission power for a second repetition of the uplink channel is determined based on the second first power control parameter.