Provided are a method and apparatus for wireless communication capable of meeting data transmission requirements. The method comprises: a first terminal determining, according to a first criterion, a target transmission power for a first physical sidelink channel; and the first terminal using the target transmission power to send the first physical sidelink channel to a second terminal.

A wireless device receives a grant indicating radio resources for transmission of a transport block via a first cell. The radio resources overlap in time with a configured transmission of a preamble via a second cell. a transmission power of one of the preamble or the transport block is adjusted based on a power priority of the preamble. The power priority of the preamble is: higher than a power priority of the transport block based on the second cell being a primary cell; and lower than the power priority of the transport block based on the second cell being a secondary cell. The transport block is transmitted via the radio resources.

Provided are a method for reporting a power headroom and an apparatus using the same. The apparatus computes and reports a power headroom for a physical uplink shared channel (PUSCH) that is transmitted in a first transmission period of a first band having a first subcarrier interval. The power headroom is computed on the basis of at least one second transmission interval of a second band having a second subcarrier interval which overlaps with the first transmission interval.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may use an increased transmit power for one or more instances of an autonomous uplink transmission. For example, a UE may be configured with a repetition window including multiple transmission time intervals (TTIs) and may identify a subset of TTIs within the window that may be unavailable for autonomous uplink transmissions. The UE may adjust transmit power or transmit a scheduling request based on the presence of unavailable TTIs. In some examples, the UE may increase the transmit power by an amount that is based on a number of unavailable TTIs, or a fixed amount, or a combination thereof. In some examples, a UE with limited transmit power (e.g., under a maximum transmit power) may dynamically transmit a report to a base station that includes a request to modify a communications scheme used by the UE.

Certain aspects of the present disclosure provide techniques for power allocation for sidelink feedback transmission. A method that may be performed by a user equipment (UE) include receiving one or more data transmissions from one or more other UEs, generating a feedback signal for each of one or more data transmissions, determining a transmission power of the feedback signal for each of one or more data transmissions based on at least one configuration associated with the feedback signal, and transmitting the feedback signal to each of the one or more other UEs using the determined transmission power.

Device-to-device (D2D) cross link power control systems and methods may be disclosed. For example, a device such as a UE or WTRU may determine whether it may have simultaneous transmissions where at least one of the transmissions may include a cross link transmission. The device may further determine whether a total transmit power of the simultaneous transmissions may exceed a maximum transmit power of the device. If the device may have simultaneous transmissions and such transmissions may exceed the maximum transmit power, the device may reallocate power based on a priority or priority setting. The device may further determine a maximum cross link power, a maximum device power, and a cross link transmit power level such that the device may further control the power for transmissions based thereon.

A method and apparatus are disclosed to handle TTI bundling. In an embodiment implemented in a UE (User Equipment), the method includes configuring the UE with a plurality of serving cells, wherein the TTI bundling and secondary cells with configured UL (uplink) could be simultaneously configured for the UE. In an embodiment from the perspective of a network, the method includes issuing, from a E-UTRAN (Evolved Universal Terrestrial Radio Access Network), a message to configure a UE with a plurality of serving cells, wherein the E-UTRAN could simultaneously configure the TTI bundling and the secondary cells with configured UL for the UE.

A method for adjusting a power setting of a key fob includes receiving an input signal from a sensor by a processor. The processor determines, based at least in part on the input from the sensor, that a person is holding the key fob. Based on the determination that the person is holding the key fob, the processor adjusts an initial power setting of the key fob by a predetermined amount.

Subscription based multiple-input-single-output and multiple-input-multiple-output wireless energy transfer enables selective charging and powering of mobile devices using a plurality of spatially distributed transmitters that are synchronized under the control of a transmitter controller. Amplitude, phase, and frequency of each transmitter is controlled to promote or deny the transfer of energy to particular mobile devices or positions through optimization techniques based on the incident power level at each mobile device subscribing to the system. Measurements related to the incident power level may be directly provided by the mobile device or the incident power is remotely determined through analysis of backscatter gains.

The described apparatus and methods may include a controller configured to determine power required for at least one of a plurality of carriers, and generate at least one of a plurality of power control commands for at least one of the plurality of carriers based on the determination.