Provided are a method and device for uplink power control. A user terminal performing the method includes: a receiving unit configured to receive signature information for the user terminal from a base station; and a control unit configured to determine a transmission power of the user terminal according to the received signature information.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a power headroom (PHR) value for a component carrier (CC) based at least in part on a physical uplink shared channel (PUSCH) transmission in the CC, wherein the PUSCH transmission includes a first repetition associated with a first set of power control parameters and a second repetition associated with a second set of power control parameters, and wherein the PHR value is determined based at least in part on one or more of the first repetition or the second repetition. The UE may transmit information identifying the PHR value for the CC. Numerous other aspects are provided.

Wireless communications are described. A wireless device may determine a first transmission power for a first signal and a second transmission power for a second signal. The wireless device may reduce signal transmission power of one or more of the first signal or the second signal, based on a calculated power value exceeding an allowable transmission power. The wireless device may reduce the signal transmission power during an overlap period or a non-overlap period, based on a duration of an overlap of the first signal with the second signal.

The present disclosure relates to a method for transmitting and receiving a device-to-device (D2D) signal in a wireless communication system supporting D2D communication, said method, performed by a terminal, comprising the steps of: transmitting a cellular signal on a first subframe of a first component carrier; transmitting a D2D signal on a second subframe of a second component carrier; and when overlapping occurs between the first subframe and the second subframe, dropping the transmission of the D2D signal or reducing transmit power of the D2D signal in a specific interval.

Methods and protocols are discussed to address IoT coexistence with existing WLAN devices and protocols. Some embodiments allow for the IoT devices to be located further from the Access Point than other devices, and provide higher power solutions to serve these long range devices. New IoT Frame structures are disclosed to allow for the above.

A method and network node (130; 110; 111) for managing uplink resources to be used by a wireless device 120. Cells (115, 116) for serving the wireless device (120) form at least one imbalance region (117) in which the wireless device (120) has the best quality in the downlink to a first cell (115) of a first type and in the uplink to a second cell (116) of a different, second type. The network node (130; 110; 111) identifies (301; 501) a situation associated with a risk for undesired decrease of transmit power used by the wireless device (120) when the wireless device (120) moves in the imbalance region (117). The network node (130; 110; 111) provides (302; 502), in response to the identification, an adjustment and/or record of a load in the uplink between the wireless device (120) and the first cell (115) and use of said adjusted and/or recorded load for determining one or more uplink resources to be used by the wireless device (120).

Embodiments herein relate to a user equipment (10), a radio base station (12) and methods therein for handling transmission power control of the user equipment (10). The user equipment (10) is served by the radio base station (12) in a serving cell (i) controlled by the radio base station (12). The radio base station (12) or user equipment obtains a first pathloss from the user equipment (10) towards the serving cell (i) and a second pathloss from the user equipment (10) towards an interfered cell (j). The radio base station (12) or the user equipment (10) then selects a value of one or more parameters, respectively, which one or more parameters are to be used to control a transmission power of the user equipment (10) and which value is selected based on the first pathloss and the second pathloss.

In a system having a first communication device with a first plurality of radio-frequency (RF) chains coupled to a first plurality of antennas and a second communication device with a second plurality of RF chains coupled to a second plurality of antennas, the second communication device receives consecutive training packets that were transmitted by the first communication device, the consecutive training packets having been produced at the first communication device by a power level rule to the first plurality of RF chains. The second communication device determines respective channel measurements corresponding to the consecutive training packets based on the power level rule, and selects a transmit parameter based on the respective channel measurements, the transmit parameter to be used by the first communication device when transmitting to the second communication device. The second communication device transmits and indication of the selected transmit parameter to the first communication device.

Apparatus, computer readable medium, and method for generating and receiving signal fields in a high efficiency wireless local-area network (WLAN) are disclosed. A high-efficiency wireless local-area network (HEW) device including circuitry is disclosed. The circuitry may be configured to: receive a physical (PHY) header or media access control (MAC) header from a second HEW station, wherein the PHY header or MAC header comprises an indication of a spatial reuse opportunity and a defer duration; adjust one or more parameters to determine whether or not the wireless medium is in use; and determine whether to transmit within the spatial reuse opportunity based on the adjusted one or more parameters. The circuitry may be configured to adjust one or more parameters to determine whether or not the wireless medium is in use in where the parameters are signal detect (SD) threshold, a mid-packet detection (MPD) threshold, and an energy detection (ED) threshold.

A method and apparatus for verifying use of dynamic power sharing in a user equipment between a first carrier transmission and a second carrier transmission. A resource block allocation and modulation for a first carrier transmitted from the user equipment is assigned, and a resource block allocation and modulation for a second carrier transmitted from the user equipment is assigned. The user equipment provides a series of power up commands for both the first carrier and the second carrier until the measured output powers for the first carrier and the second carrier no longer increase. Power down commands are then provided for the first carrier while providing power up commands to the second carrier. The output power for the first carrier and the second carrier is then measured and a determination is made as to whether the output power for the second carrier increases as the output power for the first carrier decreases.