CPC Class H04W

Methods, systems, and devices for wireless communications are described that support signaling for energy harvesting at a first device. In some examples, the first device may transmit, to a second device, an indication of one or more an energy conversion efficiency factors, power threshold parameters, power levels, battery power levels, or the like. Based on receiving the indication of the one or more of the characteristics, the second device may determine a radio frequency power for subsequent signaling. The second device may transmit a signal having the determined radio frequency power, and the first device may receive the signaling and convert at least a first portion of the radio frequency power to direct current (DC) power.

An oscillation circuit includes resistors with tap points for high/low reference voltages. An RC network coupled in parallel with the resistors includes a first capacitor to vary a first voltage input and a second capacitor to generate a second voltage input. A first comparator alternately compares the voltage inputs with the low reference voltage to generate oscillation outputs. A PTAT current DAC supplies an injection current to a resistor of the series of resistors that variably modulates the reference voltages. A second comparator alternately compares the voltage inputs with the high reference voltage and controls generation of an adaptive bias current to first comparator near a switching threshold voltage range thereof. A chop switch matrix alternately flips voltage reference inputs to input terminals of first comparator. A multiplexer alternately inverts a polarity of the oscillation outputs in concert with alternately flipping the voltage reference inputs by the chop switch matrix.

Ultra-Wideband (UWB) wireless technology transmits digital data as modulated coded impulses over a very wide frequency spectrum with very low power over a short distance. Accordingly, the inventors have established UWB devices which accommodate and adapt to inaccuracies, errors, or issues within the implemented electronics, hardware, firmware, and software. Beneficially, UWB receivers may accommodate offsets in absolute frequency between their frequency source and the transmitter, accommodate drift arising from phase locked loop and/or from relative clock frequency offsets of the remote transmitter and local receiver. UWB devices may also employ modulation coding schemes offering increased efficiency with respect to power, data bits per pulse transmitted, and enabled operation at higher output power whilst complying with regulatory emission requirements. Further, UWB devices may support a ranging function with range/accuracy not limited to the low frequency master clock employed within these devices enabling operation with ultra-low power consumption.

This document discloses a solution for performing internetwork beamforming cooperation. According to an aspect, a method comprises: establishing, by a first access node (112) of a first wireless network, internetwork beamforming with a second access node (110) of a second wireless network, wherein the establishment indicates at least one station (102) of the second wireless network; in response to said establishing, transmitting by the first access node (112) a channel sounding signal; receiving, by the first access node (112) from the at least one station (102) of the second wireless network, a beamforming report comprising channel state information measured from the channel sounding signal; and performing, by the first access node (112), null steering beamforming transmission in the first wireless network on the basis of the received channel state information.

Methods and apparatus for beam management are disclosed. A WTRU may include a plurality of antenna panels, each antenna panel comprising a plurality of antennas configured to transmit on directional transmit (TX) beams. The WTRU may send, to a transmission reception point (TRP), antenna panel capability information for the plurality of antenna panels and receive a reference signal (RS) configuration for configuring RS resource sets. The WTRU may send an RS transmission trigger frame identifying triggered RS resource sets from the configured RS resource sets. The WTRU may identify a set of antenna panels to be used with the triggered RS resource sets. The WTRU may determine an UL TX beam sweeping mode and an association between the triggered RS resources sets and the set of antenna panels. The WTRU may perform UL beam sweeping using the triggered RS resource sets and associated set of antenna panels.

The present invention relates to methods and systems utilizing a multiple-frequency antenna array system. The multiple-frequency antenna array system includes a first set of broadband elements that allows the establishment of a first cellular data communication session and a concurrent second cellular data communication session. The system also includes a second set of broadband elements that allow the establishment of a first local area wireless network communication session and a concurrent second local area wireless network communication session. Further, there is a broadband element configured to receive a global positioning signal. In addition, the multiple-frequency antenna array system is coupled to a vehicle. A method for establishing multi-frequency communication sessions using an antenna array is also presented.

This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for wireless communication. In one aspect of the disclosure, a user equipment (UE) detects a beam failure of a first beam for a first component carrier (CC) based on a link quality associated with the first beam for the first CC. The first CC and a second CC are within a same group of CCs. The UE initiates one or more beam failure recovery operations associated with any CC within the same group of CCs as the first and second CCs based on a determination of a beam failure of a second beam for the second CC. The determination is based on the detection of the beam failure for the first CC and based on the first CC and the second CC being within the same group of CCs.