Provided are a method by which a first device performs wireless communication, and a device for supporting same. The method can comprise the steps of: transmitting one or more reference signals (RSs) to a second device on the basis of first transmit power; receiving, from the second device, information related to a channel state measured on the basis of the one or more RSs; changing the first transmit power to second transmit power on the basis of the information related to the channel state; and transmitting the one or more RSs to the second device on the basis of the second transmit power.

Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for managing uplink power control. For example, the techniques may be used for uplink power control for physical uplink shared channel (PUSCH) transmissions from unmanned aerial vehicles (UAVs).

Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for managing uplink power control. For example, the techniques may be used for uplink power control for physical uplink shared channel (PUSCH) transmissions from unmanned aerial vehicles (UAVs).

Apparatuses, methods, and systems are disclosed for directional transmission/reception of groupcast and unicast communication. One apparatus includes a memory comprising instructions executable by a processor to cause the apparatus to receive a sidelink (“SL”) configuration for SL communication, the SL configuration indicating a SL grant and a physical uplink control channel (“PUCCH”) resource for hybrid automatic repeat request (“HARQ”) feedback. The instructions are executable by the processor to cause the apparatus to transmit a positive acknowledgement on the PUCCH resource based at least in part on the HARQ feedback being disabled.

Apparatuses, methods, and systems are disclosed for directional transmission/reception of groupcast and unicast communication. One apparatus includes a memory comprising instructions executable by a processor to cause the apparatus to receive a sidelink (“SL”) configuration for SL communication, the SL configuration indicating a SL grant and a physical uplink control channel (“PUCCH”) resource for hybrid automatic repeat request (“HARQ”) feedback. The instructions are executable by the processor to cause the apparatus to transmit a positive acknowledgement on the PUCCH resource based at least in part on the HARQ feedback being disabled.

A method and apparatus for improved battery performance of user equipment in a wireless network having multiple radio resource control (RRC) states, the method comprising the steps of: monitoring, at the user equipment, application data exchange; determining when no application on the user equipment is expected to exchange data; and initiating, from the user equipment, a transition to a less battery demanding radio resource control state or mode.

A terminal includes a control unit that sets, when data transmitted on a sidelink shared channel is frequency division multiplexed with a sidelink reference signal in a symbol to which the sidelink shared channel is mapped, a first value of a transmit power for transmitting the reference signal to a same value as or a different value from a second value of a transmit power for transmitting the data; and a transmitting unit that transmits the reference signal and the data, wherein the transmitting unit applies the first value of the transmit power to the reference signal and applies the second value of the transmit power to the data.

A terminal includes a control unit that sets, when data transmitted on a sidelink shared channel is frequency division multiplexed with a sidelink reference signal in a symbol to which the sidelink shared channel is mapped, a first value of a transmit power for transmitting the reference signal to a same value as or a different value from a second value of a transmit power for transmitting the data; and a transmitting unit that transmits the reference signal and the data, wherein the transmitting unit applies the first value of the transmit power to the reference signal and applies the second value of the transmit power to the data.

The present invention is designed to control transmission power properly even when communication is controlled based on shortened processing time. A user terminal communicates in a cell where a shortened TTI, having a transmission time interval (TTI) length shorter than 1 ms, is used, and/or in a cell where communication is controlled based on shortened processing time, which is shorter than in existing LTE systems, and this user terminal has a receiving section that receives a DL signal, a transmission section that transmits a UL signal in response to the DL signal, and a control section that controls transmission power of the UL signal based on a power control command contained in downlink control information transmitted in a predetermined transmission time interval in which the DL signal is transmitted, or in a transmission time interval located before the predetermined transmission time interval.

Apparatuses, methods, and systems are disclosed for transmission power control. One method includes receiving a first configuration indicating a plurality of bandwidth parts on a first serving cell and configuration information corresponding to the plurality of bandwidth parts. The configuration information comprises an open-loop power control configuration, a closed loop power control configuration, or a combination thereof corresponding to each bandwidth part of the plurality of bandwidth parts. The method comprises receiving scheduling information for a first uplink transmission on a first bandwidth part of the plurality of bandwidth parts. The method comprises determining a first transmission power for the first uplink transmission based on the configuration information and the scheduling information. The method comprises performing the first uplink transmission with the first transmission power.