Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may identify, based at least in part on a scaling factor, one or more phase weights associated with a transmit beam of the wireless communication device. The scaling factor is associated with a frequency in a frequency band associated with the wireless communication device. The wireless communication device may generate, based at least in part on the one or more phase weights, the transmit beam. The wireless communication device may transmit a wireless communication using the transmit beam. Numerous other aspects are described.

Abstract: A WTRU may include a memory and a processor. The processor may be configured to receive beam grouping information from a gNB or transmission and reception point (TRP). The beam grouping information may indicate a group of beams that the WTRU may report using group-based reporting. The group-based reporting may be a reduced level of reporting compared to a beam-based reporting. The group-based report may include measurement information for a representative beam. The representative beam may be one of the beams in the group or represents an average of the beams in the group. Alternatively, the representative beam may be a beam that has a maximum measurement value compared to other beams in the group. The group-based report may include a reference signal received power (RSRP) for the representative beam and a differential RSRP for each additional beamin the beam group.

Abstract: An antenna alignment device may have a camera that takes a line-of-sight image. For an antenna alignment device directed to a boresight of an antenna, the line-of-sight image is the “view” from the antenna to the surrounding environment. An antenna radiation pattern, based on the antenna type, may be overlaid on the line-of-sight image. A technician and or other user can therefore observe the radiation pattern vis-à-vis the surrounding environment. Therefore, it can be determined during the initial alignment stage, whether the antenna alignment may have to be changed to account for structures and or other blockages in the surrounding environment rather than just relying antenna alignment based on an ideal model site. The overlaying also speeds up troubleshooting as it can be used to provide clear and specific alignment instructions prior to deploying crew to the antenna site.

Abstract: An operating method of a base station includes receiving, from a terminal, a user equipment (UE) capability signal including panel-related information of the terminal, determining whether to generate a panel change signal based on the panel-related information, determining a panel change of the terminal based on the panel-related information when it is determined to generate the panel change signal, and transmitting, to the terminal, the panel change signal including information regarding the panel change.

Abstract: An apparatus, method and computer readable medium for special thermal density reduction by antenna thinning. A system comprises N transmit/receive (TX/RX) chains, where each TX/RX chain comprises an RFFE and each RFFE comprises one or more thermal sensors configured to measure heat in the RFFE. An antenna array coupled to the plurality of TX/RX chains. A codebook that comprises a plurality of code words configured to respond to real-time heat measurements from the thermal sensors in each TX/RX chain is configured to switch off selected TX/RX chains to reduce thermal density at the antenna array while maintaining M RFFEs switched on, where M<N and the desired beamforming gain is 10 log 10(M).

Abstract: Methods, systems and apparatus, including computer programs encoded on computer storage media, for training an action selection neural network. One of the methods includes receiving an observation characterizing a current state of the environment; determining a target network output for the observation by performing a look ahead search of possible future states of the environment starting from the current state until the environment reaches a possible future state that satisfies one or more termination criteria, wherein the look ahead search is guided by the neural network in accordance with current values of the network parameters; selecting an action to be performed by the agent in response to the observation using the target network output generated by performing the look ahead search; and storing, in an exploration history data store, the target network output in association with the observation for use in updating the current values of the network parameters.

Abstract: This disclosure provides systems, methods, apparatuses, and computer programs encoded on computer storage media, for wireless communication. Various aspects support beam switching and changing antenna array configurations for communicating in a near field range. In some examples, a user equipment (UE) may transmit a beam group indicator to a network entity, and the UE and the network entity may perform beam switching operations associated with switch communication beams in association with changes to a distance between the UE and the network entity. In some such examples, the beam switching may switch from using beam weights for communications in a far field range to beam weights for communications in a near field range. Additionally or alternatively, the network entity may change configurations of an antenna array used to communicate with the UE in association with changes to the distance. Other aspects and features are also claimed and described.

Abstract: The disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as long term evolution (LTE). An operating method of a user equipment (UE) in a communication system includes performing radio resource control (RRC) signaling with a base station, determining a code rate based on an RRC configuration according to the RRC signaling, and determining a size of data using the code rate.

Abstract: Systems, methods, and computer-readable media are provided for hybrid beamforming. An example method can include determining a plurality of digital beamforming weights associated with a plurality of digital beamforming paths between digital beamformers and groups of analog beamforming circuits in a phased array antenna, each digital beamforming path being coupled to a group of analog beamforming circuits and each analog beamforming circuit being coupled to a respective set of antenna elements of the phased array antenna, and determining analog beamforming weights associated with the groups of analog beamforming circuits. The analog beamforming weights are estimated to put analog beamforming paths associated with the groups of analog beamforming circuits in a desired phase and gain relationship with each other.

Abstract: A method includes providing a reference clock signal having a reference period, providing a sampling clock signal having a sampling clock period shorter than the reference period of the reference clock signal, measuring the first subperiod as a first ratio of the first subperiod to the period of the sampling clock signal, measuring the second subperiod as a second ratio of the second subperiod to the period of the sampling clock signal, detecting a starting edge of a clock signal having a clock period greater than the reference period, producing a reconstructed reference signal based on the first ratio, the second ratio, and the detected starting edge, comparing the clock period of the clock signal with a period of the reconstructed reference signal to obtain a differential signal indicating a difference therebetween, and providing the differential signal to user circuitry for calibrating the clock signal.

Abstract: A wireless audio system including a transmitter using multiple antenna diversity techniques for different signal types is provided. Multipath performance may be optimized, along with improved spectral efficiency of the system.

Abstract: An electronic device, which comprises a memory, a processor, and a serial number length adjustment program stored in the memory and operable on the processor is disclosed. The serial number length adjustment program is executed by the processor to implement following functions: performing an angle estimation algorithm on all user equipments (UEs) through a low-frequency band to estimate beam angles of the UEs relative to the electronic device; generating high-frequency band beams of the UEs relative to the electronic device according to the estimated beam angles; and enabling the electronic device to communicate with the UEs according to the generated high-frequency band beams.

Abstract: A method for wireless communication is disclosed, wherein an access node is configured to transmit signals using beamforming to a user device, wherein transmitting signals using beamforming comprises transmitting signals using a selected beam of a plurality of available beams, and wherein beam tracking comprises measurements by the user device on a candidate set of beams of the plurality of available beams for beam selection. The method comprises predicting a future trajectory for the user device, and determining the candidate set of beams based on the predicted future trajectory. In some embodiments, determining the candidate set of beams based on the predicted future trajectory comprises giving preference to available beams covering the predicted future trajectory.

Abstract: A testing system includes a signal generator circuit, a jitter modulation circuit, and an oscilloscope circuit. The signal generator circuit is configured to generate a clock pattern signal with a single clock pattern frequency. The jitter modulation circuit is configured to generate a jitter signal. A device-under-test is configured to receive an input signal. The input signal is a combination signal of the clock pattern signal and the jitter signal. The device-under-test includes a clock data recovery circuit and is further configured to generate an output signal according to the input signal. The oscilloscope circuit is configured to receive the output signal for determining performance of the clock data recovery circuit.

Abstract: Embodiments described herein relate to methods and apparatuses for providing communication between a base station and at least one wireless device using a first beam. A method in a base station comprises receiving an indication of two or more beams, wherein the two or more beams meet a quality criterion associated with the at least one wireless device; obtaining a combined beam vector, w, based on a weighted sum of two or more beam vectors, bk, associated with the two or more beams; and communicating with the at least one wireless device using the first beam, wherein the first beam is generated using the combined beam vector.

Abstract: A system for transmitting millimeter wave signals comprising at least one repeater for communicating with a plurality of remote locations over millimeter wave communications links. The at least one repeater further comprises orbital angular momentum (OAM) processing circuitry for applying a selected orbital angular momentum to transmitted signals. The selected orbital angular momentum limits interference between the transmitted signals and the received signals at the at least one repeater. Full-duplex transmission circuitry processes the transmitted signals and the received signals received over the millimeter wave communications links using full-duplex communications with the plurality of remote locations. The at least one repeater relays the millimeter wave signals between at least a first millimeter wave transceiver at a first one of the plurality of remote locations and a second millimeter wave transceiver at a second one of the plurality of remote locations.

Abstract: An isolated driver device comprises a first semiconductor die and a second semiconductor die galvanically isolated from each other. The second semiconductor die includes a signal modulator circuit configured to modulate a carrier signal to produce a modulated signal encoding information. A galvanically isolated communication channel implemented in the first semiconductor die and the second semiconductor die is configured to transmit the modulated signal from the second semiconductor die to the first semiconductor die.

Abstract: A method and apparatus for transmitting a wireless signal using a beamforming apparatus having a plurality of antennas is disclosed. The technique comprises: generating a first RF signal; and transmitting, using the plurality of antennas, a corresponding plurality of output RF signals to form the transmitted wireless signal; wherein transmitting the plurality of output RF signals comprises, for each antenna: splitting the first RF signal into a pair of second RF signals; shifting a respective phase of each of the pair of second RF signals; adding the phase shifted pair of second RF signals to form a third RF signal; and transmitting, using the antenna, the third RF signal as the corresponding output RF signal for the antenna.

Abstract: A method of a terminal may comprise: receiving, from a base station, DCI including downlink scheduling information and information indicating that a beam adjustment period exists; receiving, from the base station, an initial signal in the beam adjustment period; adjusting a Rx beam of the terminal based on a measurement result of the initial signal; and receiving, from the base station, data by using the adjusted Rx beam in a resource region indicated by the downlink scheduling information.

Abstract: A wireless device is configured to perform wireless communication with one or more terminals and includes an antenna configured to perform wireless communication, a wireless interface configured to perform wireless communication with the one or more terminals through the antenna, and a processor configured to acquire an azimuth and a weighting coefficient of each of the one or more terminals, and determine a direction of the antenna based on the azimuth and the weighting coefficient of each of the one or more terminals.