Method and apparatus for controlling transmission power of uplink data channel
Provided are methods and apparatuses for efficiently multiplexing one or more UL data transmission resource(s) between UEs with different latency requirements or efficiently controlling power of one or more UL data transmission resource(s) between UEs with different latency requirements, in the NR. The method of the UE for controlling transmission power of UP data channel may include applying predetermined power control, which is different from another, for transmitting an UL data channel and transmitting the UL data channel based on the applied predetermined power control.
1. A method for controlling transmission power of a physical uplink shared channel (PUSCH), performed by a user equipment (UE), the method comprising:
applying power control for transmitting the PUSCH by:
applying a single transmission power control equation for the PUSCH;
configuring different types of power control parameter sets; and
controlling the transmission power of the PUSCH based on the single transmission power control equation applied with one type of power control parameter set, among the configured different types of power control parameter sets, wherein the one type of power control parameter set is determined based on a first indication transmitted through a first downlink control information (DCI);
monitoring a second indication transmitted through a second DCI,
wherein the second DCI is a UE-group common DCI; and
transmitting the PUSCH based on the applied power control,
wherein the second indication is used to cancel an uplink (UL) transmission, and
wherein, according to a result of the monitoring of the second indication, the transmission of the PUSCH is cancelled after a certain amount of time, the certain amount of time being based on a last symbol of a control resource set (CORESET) over which the second indication is transmitted.
2. The method according to claim 1 , wherein the different types of power control parameter sets are configured for the UE through high layer signaling.
3. A method for receiving a physical uplink shared channel (PUSCH), performed by a base station, the method comprising:
transmitting different types of power control parameter sets through high layer signaling to a user equipment (UE);
transmitting a first indication through a first downlink control information (DCI) to the UE,
wherein the first indication indicates one type of power control parameter set being applied to a single transmission power control equation for the PUSCH, among the different types of power control parameter sets; and
receiving, from the UE, the PUSCH with a power to which the one type of power control parameter set is applied;
transmitting a second indication through a second DCI to the UE,
wherein the second DCI is a UE-group common DCI,
wherein the second indication is used to cancel an uplink (UL) transmission, and
wherein, according to the transmission of the second indication to the UE, a transmission of the PUSCH from the UE is cancelled after a certain amount of time, the certain amount of time being based on a last symbol of a control resource set (CORESET) over which the second indication is transmitted.
4. A user equipment (UE) for controlling transmission power of a physical uplink shared channel (PUSCH), the UE comprising:
a controller configured to apply power control for transmitting the PUSCH, wherein the controller is configured to:
apply a single transmission power control equation for the PUSCH and configure different types of power control parameter sets; and
set the transmission power of the PUSCH based on the single transmission power control equation to which one type of power control parameter set is applied, among the configured different types of power control parameter sets, wherein the one type of power control parameter set is determined based on a first indication transmitted through a first downlink control information (DCI);
monitor a second indication transmitted through a second DCI, wherein the second DCI is a UE-group common DCI; and
a transmitter configured to transmit the PUSCH based on the applied power control,
wherein the second indication is used to cancel an uplink (UL) transmission, and
wherein, according to a result of the monitoring of the second indication, the transmission of the PUSCH is cancelled after a certain amount of time, the certain amount of time being based on a last symbol of a control resource set (CORESET) over which the second indication is transmitted.
5. The UE according to claim 4 , wherein the different types of power control parameter sets are configured for the UE through high layer signaling.