Abstract: This disclosure provides systems, methods, and devices for wireless communication that support radio frequency (RF) component preferences in hybrid beamforming operations at millimeter Wave (mmWave) bands. In a first aspect, a method of wireless communication includes transmitting a capability message to a network entity including an identification of a constrained RF architecture of the UE, communicating an indication of a communication performance loss attributable to use of a non-preferred set of transmission states, and performing a communication with the network entity at the mmWave frequencies according to a transmission state selected by the network entity. Other aspects and features are also claimed and described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may transmit at least a first synchronization signal block (SSB) over a first sub-band in a first spatial direction and a second SSB over a second sub-band in a second spatial direction, wherein the at least the first SSB and the second SSB are transmitted at a same time and wherein the at least the first SSB and the second SSB comprise a set of SSBs, the at least first sub-band and the second sub-band comprise a first set of sub-bands, and the at least first spatial direction and the second spatial direction comprise a first set of spatial directions. Numerous other aspects are described.

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: Wireless communications systems, apparatuses, and methods are provided. A method of wireless communication performed by a user equipment (UE) includes transmitting, to a network unit, a plurality of reference signals, wherein the plurality of reference signals is associated with a first set of phase and gain values to be used with a first antenna array at the UE for uplink transmissions, receiving, from the network unit, signals used to determine calibration coefficients associated with the first set of phase and gain values for the first antenna array, and transmitting, to the network unit, a communication signal based on the calibration coefficients associated with the first set of phase/gain values and calibration coefficients associated with a second set of phase/gain values, wherein the calibration coefficients associated with the second set of phase/gain values are interpolated from the calibration coefficients associated with the first set of phase/gain values.

Abstract: An apparatus for wireless communication communicates with a wireless device based on an adaptive beam weight hybrid beamforming for wireless communication and provides a request from a first network node for one or more additional network nodes to measure interference caused by the wireless communication with the adaptive beam weight hybrid beamforming. The apparatus receives a report of the interference caused to the one or more additional network nodes by the wireless communication with the adaptive beam weight hybrid beamforming.

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: A method for wireless communication at a user equipment (UE) and related apparatus are provided. In the method, the UE receives multiple transmissions from a network entity. Each transmission of the multiple transmissions may use one symbol of a set of multiple symbols and may be sent using one transmit beam of multiple transmit beams. The UE further determines a first linear combination of the multiple transmissions that emulates an adaptive transmit beam weight, and determines an adaptive receive beam weight based on a second linear combination of multiple receive beams. The method enables a UE to emulate the adaptive transmitting weight based on a linear combination of multiple transmissions of independent symbols, and to adjust the receive beams based on the linear combination. It improves signal reception and efficiency of wireless communication.

Abstract: A method for wireless communication at a UE is disclosed herein. The method includes transmitting a first indication of an obstruction of at least a portion of a plurality of antenna elements of the UE. The method includes receiving a second indication of at least two antenna elements of the plurality of antenna elements, where the second indication is based on the first indication and a set of usage patterns of a plurality of UEs. The method includes combining the at least two antenna elements in the plurality of antenna elements based on the second indication. The method includes transmitting or receiving first data or at least one signal via the combined at least two antenna elements.

Abstract: Methods, systems, and devices for wireless communications are described. An assistive node may include circuitry for operating in an amplifying mode and operating in a reflecting mode. The assistive node may transmit a message to a network entity indicating that the assistive node is capable of operating in an amplifying mode or a reflecting mode. The network entity may transmit scheduling information to the assistive node for a packet transmission to be reflected or amplified by the assistive node to a wireless device, for example, because a direct path between the network entity and the wireless device is blocked. The network entity may transmit control signaling to the assistive node configuring the assistive node to either reflect or amplify the packet transmission to the wireless device. The assistive node may reflect or amplify the packet transmission to the wireless device based on the control signaling.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a capability message indicating a capability to support a set of frequency bands for wireless communications with an antenna panel. Based on the capability, the UE may receive a first control message from a network entity indicating a portion of the set of frequency bands to use for further wireless communications based on the network entity determining an interference between a set of UEs including the UE and the UE satisfying a threshold interference value. The set of frequency bands may relate to a beamforming scan range. As such, the UE may transmit further wireless communications via a frequency band of the portion of the set of frequency bands based on the first control message and the beamforming scan range.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a broadcast transmitter, a broadcast signal including one or more multi-resolution messages. The UE may decode at least one of the one or more multi-resolution messages based on receiving the broadcast signal from the broadcast transmitter, and may determine that a data rate associated with the broadcast signal is less than a threshold based on the decoding. The UE may transmit a signal querying the broadcast reception capability of a base station based on determining the data rate. In response to the query signal, the UE may receive a signal indicating a broadcast reception capability of the base station, and may communicate, with the base station, based on the broadcast reception capability of the base station.

Abstract: In an aspect, a first network entity transmits, to a second network entity, beam management capability information including information indicative that the first network entity includes a first antenna array and a second antenna array. The first antenna array supports operation in a first frequency band and the second antenna array supports operation in a second frequency band. The first network entity determines a first beam in the first frequency band based on beam training information corresponding to the first frequency band. The first network entity determines a second beam based on the first beam. The second beam is in the second frequency band. The first network entity transmits, to the second network entity, information indicative of the second beam.

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support use of minimum effective isotropic radiated power (EIRP) constraints with lower precision phase shifters and/or amplitude control. In a first aspect, a method of wireless communication includes obtaining one or more system performance parameters from a serving network entity, wherein the one or more system performance parameters includes a minimum EIRP for uplink transmissions, calculating an estimated EIRP for one or more candidate uplink transmission configurations of the UE, selecting an uplink transmission configuration of the one or more candidate uplink transmission configuration in response to the estimated EIRP corresponding to the uplink transmission configuration meeting the minimum EIRP, and sending the uplink transmissions according to the uplink transmission configuration. Other aspects and features are also claimed and described.

Abstract: Aspects are provided which allow a transmitting device to provide reference signals to a receiving device for beam management according to an arbitrarily determined sequence of transmission beams at any time, and to implicitly convey information regarding the determined sequence of transmission beams to the receiving device. The transmitting device provides a message to the receiving device indicating a beam sequence conveyance mode. The transmitting device subsequently determines a sequence of different transmission beams, and associates a reference signal with each one of the transmission beams for transmission to the receiving device according to the sequence. The receiving device obtains the plurality of reference signals from the transmitting device, where each of the reference signals is associated with a different transmission beam. The receiving device identifies a reception beam for each of the transmission beams, and determines a sequence of the transmission beams in response to the identification.

Abstract: A UE may train a NN, based on a blockage of a beam transmission, to indicate one or more beam weights in association with the blockage of the beam transmission. The UE may store, in an ML database, information indicative of at least one of the trained NN or the one or more beam weights indicated via the trained NN, such that the UE may communicate, to an ML server, the information via the trained NN. The ML server may train the NN, based on a TL/FL procedure for the one or more beam weights associated with the at least one blockage, to indicate one or more TL/FL beam weights in association with the at least one blockage, and communicate, to at least one UE, information indicative of at least one of the trained NN or the one or more TL/FL beam weights indicated via the trained NN.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a base station, an indication of a range of frequencies outside an operational bandwidth of the UE based at least in part on the range of frequencies being compatible with one or more sets of analog beamforming beam weights associated with the operational bandwidth. The UE may communicate, with the base station, based at least in part on transmitting the indication of the range of frequencies outside of the operational bandwidth of the UE. Numerous other aspects are provided.

Abstract: Aspects of the present disclosure relate to signaling between network entities to mitigate, through management of phase shifter or amplitude controller precision, increased interference applied to a network node during uplink beamforming resulting from low phase shift or amplitude control precision. A UE transmits first uplink data in a first beam using a phase shifter or an amplitude controller configured with a first bit precision. The UE receives a message from a network entity indicating to change the first bit precision to a different, second bit precision in response to the first beam interfering with downlink communications from or to a network node. The UE afterwards transmits second uplink data in a second beam using the phase shifter or the amplitude controller reconfigured with the second bit precision. Thus, interference from lower precision phase shifters or amplitude controllers may be avoided.

Abstract: This disclosure provides systems, methods, and devices for wireless communications that support phase and gain adjustments in beamforming for millimeter wave operation. In a first aspect, a method for wireless communications includes applying a calibration gain value to beamforming for a plurality of antennas; determining a plurality of phase calibration values corresponding to the plurality of antennas while beamforming at the calibration gain value; and determining a first plurality of gain calibration values corresponding to the plurality of antennas while beamforming using the plurality of phase calibration values. Other aspects and features are also claimed and described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may receive an indication of a beam switching mode for reception of a communication spanning multiple slots. The network node may receive the communication in a first group of symbols of the multiple slots using a first beam in accordance with the beam switching mode. The network node may receive the communication in a second group of symbols of the multiple slots using a second beam in accordance with the beam switching mode. Numerous other aspects are provided.

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 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.