Abstract: A user equipment (UE) may transmit a first request for the uplink (UL) communications with a network node to be switched from a first serving cell in a first frequency range and a second serving cell in a second frequency range to a serving cell over a single first frequency range based on switching from a static codebook based hybrid beamforming to at least one of an adaptive beam weight hybrid beamforming. The UE may further transmit a second request for the network node to measure an interference caused by the UL communications from the UE with the adaptive beam weight hybrid beamforming.

Abstract: Methods, systems, and devices for wireless communications are described. A first device, which may be a user equipment (UE), may perform a measurement on a wideband channel in a millimeter wave (mmW) frequency band. The wideband channel may include a set of subbands that span the wideband channel. Based on the measurement, the first device may determine a set of power control parameters for the wideband channel. The first device may determine to transmit a signal using a subband of the set of subbands and may modify one or more power control parameters of the set of power control parameters based on a power offset for the subband. The first device may transmit an indication of the modified one or more power control parameters to a second device. The first device may transmit the signal to the second device based on the modified one or more power control parameters.

Abstract: Aspects described herein relate to reporting time-scale capability information in learning adaptive beam weights for millimeter wave systems. In one example, a user equipment (UE) may identify a time-scale at which the UE can learn a set of adaptive beam weights for hybrid beamforming communications. The UE may further transmit a dynamic capability indication including information associated with the time-scale at which the UE can learn the set of one or more adaptive beam weights. In another example, a network entity may receive a dynamic capability indication including information associated with a time-scale at which a UE can estimate a set of adaptive beam weights. The network entity may further identify one or more time-scales associated with a set of reference signals to transmit to the UE for beam weight estimation, and transmit a grant for the set of reference signals for the UE to perform the beam weight estimation.

Abstract: Various aspects of the present disclosure generally relate to wireless communication and testing. In some aspects, a device may receive information identifying a mount orientation of a wireless communication device, wherein the mount orientation indicates an orientation of a coordinate system of the wireless communication device relative to a coordinate system of a positioner. The device may capture measurement information at each position of a set of positions of the wireless communication device, wherein the set of positions comprises positions of the wireless communication device as the wireless communication device is rotated around an axis by the positioner, and wherein the measurement information is captured based at least in part on the mount orientation. The device may provide information identifying the measurement information. Some techniques and apparatuses described herein may use the measurement information to generate a codebook for beam generation. Numerous other aspects are provided.

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a multi-panel device may determine, for each antenna panel of the multi-panel device, a coverage region over which the multi-panel device may communicate using that antenna panel based on an array gain pattern of that antenna panel. For example, the multi-panel device may determine, for each antenna panel of the multi-panel device, a coverage region over which the multi-panel device may communicate using that antenna panel to avoid the formation of a grating lobe from that antenna panel. The multi-panel device may dynamically adjust the coverage regions associated with the antenna panels of the multi-panel device based on determining that an interference metric exceeds a threshold interference level or based on determining that a power or thermal condition of the multi-panel device fails to satisfy a power or thermal constraint of the multi-panel device.

Abstract: Wireless communications systems and methods related to coordinated beam refinement and coordinated beam failure recovery (BFR) in a wireless communication network are provided. A first wireless communication device communicates, with a second wireless communication device of a group of wireless communication devices, a communication signal using a first beam characteristic. The first wireless communication device receives, from the second wireless communication device, at least one of beam feedback information or a beam change request. The first wireless communication device transmits, to the group of wireless communication devices in response to the at least one of the beam feedback information or the beam change request, a beam configuration indicating a second beam characteristic to be used by the group of wireless communication devices for communicating with the first wireless communication device, the second beam characteristic being different from the first beam characteristic.

Abstract: 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 method of wireless communication includes determining, at a wireless device, a subset of antenna elements of a plurality of antenna elements to be used to communicate with a network entity in a second communication direction. The plurality of antenna elements is used to communicate with the network entity in a first communication direction. The method further includes transmitting, from the wireless device to the network entity, a message indicating that the subset of antenna elements is to be used to communicate in the second communication direction. Other aspects and features are also claimed and described.

Abstract: The present disclosure provides for beam selection by a mobile device based on a sensor state of the mobile in order to mitigate hand blockage. The mobile device detects, during operation of the mobile device, a sensor state caused by a hand of an operator on the mobile device. The mobile device selects for communication, while operating in the sensor state, a refined beam set corresponding to the sensor state based on reference signals. The mobile device trains a machine learning model based on a set of training data including pairs of the sensor state and the refined beam set to select a first set of beam weights from a second set of beam weights based on a detected sensor state. The mobile device selects for communication a hand blockage state including the first set of beam weights for a current detected sensor state based on the machine learning model.

Abstract: Methods, systems, and devices for wireless communications are described. A first device may monitor for a set of reference signals from a second device using a set of directional beams. The first device may perform measurements on the received reference signals and select a subset of directional beams from the set of directional beams based on the performed measurements. Each directional beam may be associated with a set of beamforming weights. The first device may communicate with the second device using a dynamic set of beamforming weights. The first device may form the dynamic set of beamforming weights using a combination of beamforming weights from each set of beamforming weights associated with the subset of directional beams. The dynamic set of beamforming weights may be different from each set of beamforming weights associated with the subset of directional beams.

Abstract: Aspects described herein relate to reporting time-scale capability information in learning adaptive beam weights for millimeter wave systems. In one example, a user equipment (UE) may identify a time-scale at which the UE can learn a set of adaptive beam weights for hybrid beamforming communications. The UE may further transmit a dynamic capability indication including information associated with the time-scale at which the UE can learn the set of one or more adaptive beam weights. In another example, a network entity may receive a dynamic capability indication including information associated with a time-scale at which a UE can estimate a set of adaptive beam weights. The network entity may further identify one or more time-scales associated with a set of reference signals to transmit to the UE for beam weight estimation, and transmit a grant for the set of reference signals for the UE to perform the beam weight estimation.

Abstract: The position of a mobile device is estimated using angle based positioning measurements. The angle based positioning measurements are generated using transmit (Tx) beams or receive (Rx) beams from one or more base stations that generate the beams over an ultra-wide bandwidth, which produces frequency and spatial distortions and impairments in an array gain response. The array gain distribution variation as a function of angle and frequency for the set of beam weights used in beamforming is conveyed to indicate the frequency and spatial distortions. The array gain distribution variation may be provided to the mobile device in assistance data for a sub-band that is only a portion of the allocated bandwidth for the base stations, or as an aggregation of the array gain distribution variation for a plurality of sub-bands of the allocated bandwidth to reduce the overhead in signaling.

Abstract: Techniques are provided for enabling user equipment (UE) positioning based on angle estimation in millimeter wave (mmW) bands. An example method for determining a location of a mobile device includes transmitting array gain information to a network entity, the array gain information including beam pattern information based at least in part on a sub-band and a state of the mobile device, receiving one or more reference signals in one or more sub-bands, wherein a receive beam for each of the one or more reference signals is based at least in part on the sub-band the one or more reference signals are being received in, and on a current state of the mobile device, determining measurement values based on the one or more reference signals, and determining the location of the mobile device based at least in part on the measurement values.

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may receive a control message indicating a set of sampling beams defined for the UE. The UE may measure a set of received signal strengths for communications from a wireless node associated with a set of linear combinations of sampling beams from the set of sampling beams defined at the UE. The UE may calculate a set of entries of a channel covariance matrix based on the set of received signal strengths of the set of linear combinations of the sampling beams from the set of sampling beams defined for the UE. As such, the UE may communicate with the wireless node based on applying a set of beam weights to an antenna array of the UE. In some examples, the set of beam weights may be based on the channel covariance matrix.

Abstract: Methods, systems, and devices for wireless communications are described. In one example, a first user equipment (UE) identifies a trigger condition associated with a first communication link with a base station and establishes a second communication link with a second UE. The UE may transmit a relay request to the second UE based on the trigger condition, wherein the relay request instructs the second UE to relay communications for the first UE. The first UE communicates with the base station via the second communication link. In another example, a base station establishes communication links with a first and second UE. The base station receives a data forwarding request that instructs the base station to use the second UE to relay communications between it and the first UE. The base station communicates with the first UE via the second communication link based at least in part on the relay request.

Abstract: Certain aspects of the present disclosure provide techniques for wireless communication by a network entity. The network entity determines a distance between the network entity and a user equipment (UE). The network entity determines a number of beams for beamforming and a beam refinement procedure, based on the distance between the network entity and the UE. The network entity transmits a number of reference signals (RSs), using the determined number of beams.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may determine, for full-duplex mode communication on a first link and a second link, a timing adjustment to at least one of a first timing or a second timing, wherein the timing adjustment is to cause a delay between clutter reflection from a first signal and an occurrence of a second signal to occur during a cyclic prefix of the second signal; cause the timing adjustment to be applied to the at least one of the first timing or the second timing; and communicate in the full-duplex mode with a first node and a second node in accordance with the timing adjustment, wherein communicating includes transmitting the first signal to the first node and receiving the second signal from the second node. Numerous other aspects are provided.

Abstract: In an aspect, the present disclosure includes a method, apparatus, and computer readable medium for wireless communications for receiving, by a user equipment (UE) from a base station, a plurality of synchronization reference signals; measuring, by the UE, a respective Reference Signal Received Power (RSRP) value of each of the plurality synchronization reference signals; determining, by the UE, a highest RSRP value from each of the respective RSRP values; and calculating, by the UE, a downlink pathloss associated with a sidelink open loop power control based on the highest RSRP value.

Abstract: Aspects of the disclosure relate to devices, systems and methods for multi-beam formation. A user equipment (UE) may determine a sampling interval for references signals to be transmitted by a base station for an upcoming control or data communication. For example, the UE may determine a maximum sampling interval tolerable for channel estimation and select the sampling interval based on the maximum. In some examples, the UE determines the sampling interval based on characteristics of its motion. The UE transmits an indication of the sampling interval to the base station. Based on the indication, the base station selects an interval for the reference signals and transmits the reference signals to the UE to enable it to perform the channel estimation for the multi-beam. The base station may determine to select the interval for the reference signals such that it is less than or equal to the sampling interval indicated by the UE.

Abstract: Techniques for dynamic downlink and uplink quasi co-location (QCL) relationship reporting are disclosed. In an example, a base station may determine to change a QCL reporting state for a user equipment (UE), wherein the QCL reporting state is one of an active QCL reporting state or a restricted QCL reporting state. The base station may also generate an indication to indicate the change in the QCL reporting state to the UE in response to the determining the change in the QCL reporting state. The base station may also transmit, to the UE, the indication in response to the generating the indication.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive, from a base station, a frequency configuration that indicates at least one default bandwidth associated with a configured bandwidth part (BWP); and communicate with the base station using at least one default beam associated with the at least one default bandwidth of the configured BWP. Numerous other aspects are provided.