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 system in a wireless network comprising a tower, a first radio unit, a power supply unit, a supplementary power source and a power control unit arranged to supply electric power to the first radio unit. The power control unit is operative to obtain a scheduled power demand related to an amount of electric power required in the first radio unit for transmissions scheduled in an imminent time interval as a resource block or subframe. The power control unit is further operative to supply electric power to the first radio unit from the power supply unit if the power demand does not exceed a power threshold, or from the power supply unit and the supplementary power source if the power demand exceeds the power threshold.

There is provided an apparatus, said apparatus comprising means for determining which of at least two lower layer radio units co-located at a first location, each lower layer radio unit associated with a higher layer radio unit, has a best path to the associated higher layer radio unit and causing the transmit power of the determined one of the at least two lower layer radio units received at a user equipment to be higher relative to the transmit power of any of the other of the at least two lower layer radio units received at the user equipment.

Various aspects of the present disclosure generally relate to wireless communication. Some techniques and apparatuses described herein provide resolution of ambiguity with regard to determination of an open loop power control value (e.g., a P0 value) for a user equipment that is configured with at least two downlink control information formats, of which one is configured with a sounding reference signal resource indicator (SRI) field and another is not configured with an SRI field. Numerous other aspects are provided.

A primary wireless access node wirelessly transmits reference signals at an initial reference signal power level. The primary wireless access node exchanges data with User Equipment (UEs) and exchanges the data with other network elements. The primary wireless access node exchanges signaling with secondary wireless access nodes. The secondary wireless access nodes exchange data between the UEs and the network elements responsive to the signaling. The primary wireless access node determines the amount of the secondary nodes and determines a new reference signal power level based on the amount of the secondary nodes. The primary wireless access node wirelessly transmits subsequent reference signals at the new reference power level.

A method for controlling transmission power from one or more radio units is provided including monitoring channel state feedback for a signal communicated between a first radio unit of the one or more radio units and a user device in a transmitted frequency range, wherein the channel state feedback is based at least in part on a metric of quality of the communicated radiofrequency signal, determining that the channel state feedback satisfies a channel state condition, wherein the channel state condition includes a metric to evaluate performance of the one or more radio units relative to the user device based at least on the metric of quality of the communicated signal, and transmitting an instruction to adjust a transmission power in the transmitted frequency range of at least one of the one or more radio units based at least on the satisfaction of the channel state condition.

Methods, systems, and devices for wireless communications are described to enable a mobile access node to enter a new power state based on detection of a second access node. The second access node may be detected by the mobile access node or a central unit (CU). The mobile access node or the CU may determine for the mobile access node to enter a new power state and may notify the other of the determination. The mobile access node may enter a lower power state if the second access node is within a defined proximity or if one or more thresholds are exceeded. The mobile access node may enter a higher power state if no other access nodes are within the defined proximity or if the one or more thresholds are not exceeded. Configuration parameters for a power state change procedure may be configured by control signaling from a CU.

Methods and systems for wireless communication are described. A computing device may receive data via a network. The computing device may modify one or more settings associated with a network based on the data.

Various embodiments include methods that may be implementing in a computing system within vehicles for supporting communicating proxy basic safety communications while operating within a platoon of vehicles to control congestion on frequencies used for basic safety communications. In various embodiments, while a vehicle is operating as a designated platoon vehicle, the computing system may generate a proxy basic safety communication including position and dimension information of the platoon as a whole, and broadcast the proxy basic safety communication on behalf of vehicles in the platoon. The proxy basic safety communication may include positions of certain vehicles within and dimensions of the platoon. While in a platoon but not operating as the designated platoon vehicle, the computing system may not broadcast basic safety communications or broadcast such communications at low power.

A method and power control unit for supplying electric power to a first radio unit of a network node in a wireless network. The power control unit obtains a scheduled power demand related to an amount of electric power required in the first radio unit for transmissions scheduled in an imminent time interval such as a resource block or subframe. Then, electric power is supplied to the first radio unit from a power supply unit if the power demand does not exceed a power threshold, or from the power supply unit and a supplementary power source if the power demand exceeds the power threshold. The supplementary power source may comprise a battery that can be connected or disconnected for successive time intervals depending on the scheduled power demand which may fluctuate greatly depending on the first radio unit's transmissions.