Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a network entity, an indication of whether the UE is capable of performing a perception-assisted beam management procedure. The UE may receive, from the network entity, a configuration indicating whether the UE should perform the perception-assisted beam management procedure based at least in part on the indication of whether the UE is capable of performing the perception-assisted beam management procedure. Numerous other aspects are described.

Abstract: A network device is provided that uses power measurements to measure a relative phase between a received signal from a reference antenna in a plurality of antennas and a received signal from each antenna in the plurality of antennas except the reference antenna. The network device may use a direct phase measurement to measure the phase of other received signals from additional antennas.

Abstract: Methods, systems, and devices for wireless communications are described for self-interference or cross-link interference measurements at a user equipment (UE). A UE may receive configuration information from a base station that indicates one or more slot format index (SFI) values that are compatible for cross-link interference or self-interference measurements. Based on the configured SFI(s), the UE may measure interference in multiple symbols, which may be used to estimate an amount of cross-link interference or self-interference, and the UE may transmit a measurement report to the base station. The base station, based on the measurement report, may identify one or more compatible SFIs, beam pairs, or combinations thereof, for subsequent communications with one or more UEs. The interference measurements may identify cross-link interference at the UE that results from transmissions of a different UE, or may identify self-interference of concurrent communications of multiple channels at a same UE.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit, to a base station, a request for uplink reference signal resources for a beam training procedure. The UE may receive, in response to the transmitted request, control signaling identifying the uplink reference signal resources for the beam training procedure. The UE may transmit, using a set of multiple of beams, reference signals on the identified uplink reference signal resources and receive, in response to the transmitted reference signals, an indication of beam parameters for a beam at the UE. The UE may communicate with the base station using the beam at the UE according to the beam parameters.

Abstract: Method and apparatus for two-way beamforming operations for calibration. The apparatus receives a first set of reference signals from a network node using N sets of beam weights over N symbols. The apparatus estimates a complex-valued beamformed channel based on the first set of reference signals. The apparatus transmits a second set of reference signals to the network entity using the N sets of beam weights. The apparatus receives a set of feedback signals from the network entity comprising measurements of the transmitted second set of reference signals. The apparatus computes a set of calibration adjustment factors between transmit and receive parts of a set of beam weights based on the set of feedback signals and the estimated complex-valued beamformed channel. The apparatus performs a calibration adjustment operation based on the computed set of calibrated adjustment factors.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a channel matrix of the UE. The UE may identify a set of beam weights according to the channel matrix. The UE may identify a set of beam properties based at least in part on an index, wherein the index is based at least in part on the set of beam weights, and wherein the index is identified without storing the set of beam weights in a long-term memory of the UE. The UE may generate a beam using the set of beam properties. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may determine a first slot format indication (SFI) for a first user equipment (UE) and a second SFI for a second UE based at least in part on a first report that includes first beam metrics for a first set of beams and indications of associated antenna modules or panels of the first UE, and a second report that includes beam metrics for a second set of beams and indications of associated antenna modules or panels of the second UE, and transmit an indication of the first SFI for the first UE and an indication of the second SFI for the second UE. Numerous other aspects are provided.

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. Aspects may include a base station coordinating a first UE and a second UE establishing relay link for directly communicating with one and other. In some cases, the relay link may be a beamformed relay link and the base station and one of the UEs may use to the relay link to communicate if a direct communication link between the base station and the UE fails. The base station may transmit reference signal information to the first and second UE for establishing a relay link. The first and second UE may perform one or more relay link beam sweeping procedures based on the reference signal information and establish the relay link based on the beam sweep procedures. In some cases, coordinating the relay link may be based on one of the UEs transmitting a triggering message to the base station.

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for beamforming parameter adaptation techniques. In one aspect, a first wireless device may receive a capability message from at least a second wireless device in a wireless communications system, the capability message indicating a default operating frequency of the second wireless device, a default operating frequency priority of the second wireless device, or both. That is, the second wireless device may transmit the capability message. The first wireless device may transmit, and at least the second wireless device may receive, an indication of the one or more codebook parameters. The one or more codebook parameters may indicate a default operating frequency for the wireless communications system. The first wireless device and the second wireless device may communicate with at least the second wireless device in accordance with the one or more codebook parameters.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to measure and report a beam combination parameter to a base station to improve generation of a dynamic beam for beamformed communications. In some examples, the UE may measure the beam combination parameter in terms of angular spread/coverage area of individual beams, array or signal gains at antennas or panels of the UE, additional panel/antenna module related information, etc. Based on the reported beam combination, the base station may generate the dynamic beam and indicate a beam configuration to the UE for subsequent communications. In some examples, distinct beam combination parameters may be reported for each component carrier or subband in a carrier aggregation (CA) configuration (e.g., inter-band CA or intra-band CA).

Abstract: Aspects presented herein may improve the power control of a communication device in an ultra wide bandwidth beamforming systems. Aspects presented herein may enable the communication device to adjust one or more parameter of a power control loop based the sub-band used within a BWP or based on the channel used within a channelized frequency band. In one aspect, a UE receives at least one power control parameter for transmitting one of a first PUSCH, a first PUCCH, or a first SRS to a base station. The UE transmits the one of the first PUSCH, the first PUCCH, or the first SRS at a first power based on a first sub-band within a BWP.

Abstract: The described techniques provide a first device configured to transmit, to a second device, an indication of a beam switching capability. In response, the second device schedules resources for a set of shared channel transmissions based on a first beam switching configuration. If the first beam switching configuration exceeds the beam switching capability of the first device, the first device applies a set of selection rules to the first beam switching configuration to obtain a second beam switching configuration and communicates with the second device according to the second beam switching configuration.

Abstract: Methods, systems, and devices for wireless communications are described. Devices in a wireless communications system using multiple transmission/reception points (TRPs) may provide information related to one or more default operating frequencies. A user equipment (UE) may receive a message indicating one or more default operating frequencies for each TRP of a set of TRPs. The UE may determine a priority of each TRP of the set of TRPs based on the respective default operating frequencies of the TRPs compared with a default operating frequency of the UE and may indicate the priorities to each TRP. Additionally, based on the default operating frequencies of the TRPs, the UE may select two or more TRPs of the set of TRPs that are suited for joint communications with the UE and may transmit an indication of the selected TRPs. The selected TRPs may coordinate joint communications over an ultra-wide bandwidth with the UE.

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 configuration of at least one measurement gap based at least in part on a gap request associated with a network-assisted antenna calibration procedure; and perform, during the at least one measurement gap, a calibration measurement corresponding to the network-assisted antenna calibration procedure. Numerous other aspects are provided.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a mapping between a set of synchronization signal block resources and a set of operating frequencies within a frequency band. The UE may identify a parameter of a synchronization signal block based on an operating frequency of the set of operating frequencies for conveying the synchronization signal block and a direction of a beam for conveying the synchronization signal block. The parameter may include an index of the synchronization signal block. The UE may monitor for the synchronization signal block based on the identified parameter.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit an indication of a recommendation (e.g., a preference) between a set of periodic channel state information reference signals (P-CSI-RS) and a set of aperiodic channel state information reference signals (AP-CSI-RS). For example, the recommendation may be based on conditions at the UE or capabilities of the UE. Based on the indication of the recommendation the UE may receive, from a network entity, control signaling granting the set of AP-CSI-RS or configuring the set of P-CSI-RS. Based on the control signaling and the granted or configured set, the UE may monitor for, and the network entity may transmit, the set of AP-CSI-RS or the set of P-CSI-RS.

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for efficiently determining a region in which a user equipment (UE) is located. The UE may perform measurements on reference signals received from a first network entity to determine the region in which the UE is located. In some cases, the UE may provide the measurements or other information to a second network entity, and the second network entity may indicate the region in which the UE is located to the UE based on the measurements or the other information. The second network entity or the UE may also indicate the region in which the UE is located to the first network entity. The UE and the first network entity may then select suitable beams for communicating based on the region in which the UE is located.

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: 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.