An example electronic device may include multiple antennas and at least one processor, wherein the at least one processor is configured to: identify a sounding reference signal (SRS) configuration received from a network; identify a physical downlink shared channel (PDSCH) scheduling rate corresponding to the electronic device; transmit, based on the PDSCH scheduling rate not being included in a first range, at least one SRS at the magnitude of first transmission power through each of at least some of the multiple antennas, in each of one or more resource for SRS signal transmission identified on the basis of the SRS configuration; and refrain from transmitting the at least one SRS in the one or more resources based on the PDSCH scheduling rate being included in the first range, or transmit the at least one SRS at the magnitude of second transmission power, which is different from the magnitude of the first transmission power, through each of at least some of the multiple antennas, in the each of the one or more resources.

In a communication scheme using a radio frame used in a mobile communication system, a reduction in transmission efficiency that occurs in a case of performing Listen Before Talk (LBT) that performs carrier sense for transmission is relieved. An OFDM signal generated in a terminal apparatus includes any of a first OFDM signal including a signal resulting from inverse discrete Fourier transform and a cyclic prefix (CP) using a portion of the signal resulting from the inverse discrete Fourier transform, and a second OFDM signal obtained by replacing a partial segment of the first OFDM signal with a prescribed number of continuous zeros, a transmission signal is managed with a resource grid of which a unit includes one or more subcarriers and an OFDM symbol length including the CP, and in a case that a period between the transmission occasion based on the carrier sense and the boundary of the resource grid is less than or equal to a prescribed time, the second OFDM signal is transmitted.

A wireless device receives configuration parameters of a cell that comprise: first parameters indicating: configuration of SRSs of the cell; whether a first accumulated power control adjustment for the SRSs is enabled; and second parameters. The second parameters indicate: configuration of an uplink data channel of the cell; and whether a second accumulated power control adjustment for the uplink data channel is enabled. A first transmission power is determined for the SRSs based on the first accumulated power control adjustment and a first power control command. The SRSs are transmitted, via the cell, with the first transmission power. A second transmission power is determined for the uplink data channel of the cell based on the second accumulated power control adjustment and a second power control command. One or more transport blocks are transmitted, via the uplink data channel of the cell, with the second transmission power.

In a terminal, a transmission power control unit controls the transmission power of an uplink channel (the PUSCH) by using transmission power control information (a TPC command) indicating one from among a plurality of candidate values. A wireless transmission unit transmits the uplink channel with the above transmission power. Instruction information for resetting a control value (closed loop correction value) to be used in a closed loop control of the transmission power is associated with at least one value among the above plurality of candidate values.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless communication device may receive an indication of a power amplifier nonlinearity state to use for transmitting a communication to a second wireless communication device, and transmit the communication based at least in part on the indication of the power amplifier nonlinearity state. Numerous other aspects are provided.

Embodiments of the present disclosure relate to methods and apparatuses. According to some embodiments of the disclosure, a method for wireless communications performed by a UE may include: determining a first energy detection threshold for performing a channel access procedure; and performing the channel access procedure based on the first energy detection threshold.

Aspects of the disclosure are directed toward intelligently selecting the operating parameters of wireless access points (WAPs) deployed in a wireless environment so as to minimize or at least reduce interference in that wireless environment. A WAP continually measures the characteristics of the wireless channels used in the wireless environment and obtains measurements of channel metrics for those channels. The WAP stores the channel metric measurements as a channel metric history and analyzes the channel metric history to determine correlations between the channel metric measurements and various timeframes. The WAP selects one or more of its operating parameters based on the channel metric history and the correlations identified. Operating parameters include the radio frequency band and channel to transmit on. A centralized control server may also receive, store, and analyze channel metric histories from multiple WAPs and issue instructions to those WAPs identifying values for their respective operating parameters.

Methods and computer software are disclosed for determining a power budget for physical channels in a system. The method may include, obtaining a mean and variance of a previously computed power component; determining an estimate of a current power component in a current frame based on the mean and variance of the previously computed power component; and computing a power budget in a current frame using the estimate of the current power component.

A method and an apparatus for efficiently reporting user equipment (UE) are provided. A method of transmitting Power Headroom Report (PHR) of UE in a mobile communication system, includes configuring an evolved PHR including an indicator with respect of a variation factor of maximum transmission power of the UE, and transmitting the evolved PHR to an eNB. An eNB may know maximum transmission power of an UE and a variation factor thereof to enable efficient scheduling.

Methods and computer software are disclosed for determining a power budget for physical channels in a system. The method may include, obtaining a mean and variance of a previously computed power component; determining an estimate of a current power component in a current frame based on the mean and variance of the previously computed power component; and computing a power budget in a current frame using the estimate of the current power component.