Abstract: Methods, systems, and devices for wireless communication are described. A machine learning server may generate a low-dimensional parameter set representing training data for the machine learning server, the training data being associated with one or more communication environments or one or more channel environments, or a combination thereof. The machine learning server may receive, from one or more devices within a communication environment or within a channel environment, or both, a low-dimensional parameter set representing testing data associated with the communication environment or the channel environment, or both. The machine learning server may generate a reproducibility metric according to a correlation between the parameter set representing the training data and the parameter set representing the testing data.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a transmission configuration indicator (TCI) state to use for communications with a network entity after switching between TCI modes (e.g., a joint TCI state mode and a separate TCI states mode for uplink transmission and downlink reception). A UE may autonomously switch between the TCI modes based on a trigger event, and may send an indication to a network entity of the trigger event prior to communicating. A UE may identify a TCI configuration with unconfigured power control parameters. The UE may determine a common power control configuration for communicating with a network entity based on applying a rule to the TCI configuration to determine the power control parameters.

Abstract: Certain aspects of the present disclosure provide techniques for beam failure detection and recovery. A method that may be performed by a user equipment (UE) includes monitoring one or more reference signals for beam failure detection for a plurality of component carriers (CCs), detecting a beam failure for a subset of one or more CCs of the plurality of CCs based on the one or more reference signals, generating a beam failure recovery request (BFRQ) indicating that a beam failure has occurred for the plurality of CCs in response to the detection of the beam failure for the subset of one or more CCs, and transmitting the BFRQ.

Abstract: A method for wireless communication at a user equipment (UE) and related apparatus are provided. In the method, the UE receives a configuration of multiple application time values for transmission configuration indication (TCI) state updates. The UE further receives downlink control information (DCI) in a control resource set (CORESET) associated with a first CORESET pool index associated with a first transmission reception point (TRP) and including a transmission configuration indication (TCI) state associated with a second CORESET pool index associated with a second TRP. The UE further transmits acknowledgement/negative acknowledgement (ACK/NACK) feedback to one or more TRPs based on a feedback mode configured for the UE, and applies the TCI state indicated in the DCI following the ACK/NACK feedback based on one of the multiple application time values and the feedback mode.

Abstract: In an embodiment, a first node receives, from a second node, a plurality of beams. The first node determines a time of arrival of each beam of the plurality of beams. The first node identifies, from the plurality of beams, one or more first beams of interest for a positioning procedure based on the times of arrival of the plurality of beams. The first node determines a first reference timing based on the time of arrival for a given beam among the identified one or more first beams of interest. The first node sends, to the second node, a positioning beacon in accordance with the first reference timing.

Abstract: This disclosure provides methods, devices and systems for beamforming in wireless communications. Some implementations more specifically relate to beamforming configurations for multicast communications. A transmitting device may transmit multicast data to multiple receiving devices, concurrently, via a physical downlink shared channel (PDSCH). The PDSCH may be preceded by a physical downlink control channel (PDCCH). The PDCCH may provide scheduling information for the PDSCH, including a multicast beam associated with the PDSCH and a timing offset or delay between the PDCCH and the PDSCH. A receiving device may determine that the PDSCH contains multicast data based on an indication in the PDCCH. To receive the PDSCH, each receiving device may tune its antennas in a direction of the scheduled multicast beam or a default beam based on the delay between the PDCCH and the PDSCH.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a transmission configuration indicator (TCI) state. The UE may determine that the TCI state is a semi-known TCI-state based at least in part on a known TCI state condition not being satisfied and a TCI state prediction condition being satisfied. The UE may apply a TCI state switching delay timeline that is associated with semi-known TCI states. Numerous other aspects are described.

Abstract: A method of wireless communication performed at a user equipment (UE) includes receiving, at the UE, a set of downlink (DL) reference signals (RSs) associated with one or more first transmission beams. The method also includes measuring, at the UE, the set of DL-RSs. The method further includes performing, at the UE, an uplink transmission having a transmission power that is set by a pathloss estimation function based on a set of pathloss parameters. One or more of pathloss parameters of the set of pathloss parameters is based on measuring the set of DL-RSs.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a repeater device may communicate with a user equipment (UE) using a first beam, the communicating comprising relaying an access link communication between the UE and a network node. The repeater device may use a second beam that is predicted by the repeater device to communicate with the UE, the second beam being based at least in part on a network operating condition. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information identifying a transmission configuration indicator (TCI) state mode, wherein the TCI state mode is a first TCI state mode or a second TCI state mode. The UE may communicate using a beam associated with the TCI state mode. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect beam failure for a first beam group in a cell including the first beam group and a second beam group. The UE may selectively transmit a beam failure recovery request for the first beam group based at least in part on a determination of uplink resource availability in the second beam group. Numerous other aspects are described.

Abstract: The present disclosure relates to methods and devices for wireless communication of an apparatus, e.g., a UE and/or a base station. The apparatus may perform a ML procedure based on at least one initial ML capability of the UE. The apparatus may also determine at least one updated ML capability for the ML procedure corresponding to an update to the at least one initial ML capability. Further, the apparatus may transmit, to a base station, an indication of the at least one updated ML capability for the ML procedure. The apparatus may also perform the ML procedure based on the at least one updated ML capability or based on the at least one initial ML capability.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, an indication of an update associated with a non-serving cell reference signal. The UE may select a first application time duration based at least in part on a determination that the non-serving cell reference signal has been tracked by the UE or a second application time duration based at least in part on a determination that the non-serving cell reference signal has not been tracked by the UE, resulting in a selected application time duration. The UE may apply the update associated with the non-serving cell reference signal after the selected application time duration. Numerous other aspects are described.

Abstract: Aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for selecting a default beam for communications between a user equipment (UE) and network entity on a physical downlink shared channel (PDSCH). An example method generally includes receiving, from a network entity, configuration information, selecting a default beam based on the configuration information, wherein the default beam is selected for use across a plurality of time periods, and receiving a physical downlink shared channel (PDSCH) using the default beam across the plurality of time periods.

Abstract: Apparatus, methods, and computer-readable media for facilitating spatial relation indication for uplink control channels and SRS are disclosed herein. An example method for wireless communication at a UE includes determining, based on a rule, a default uplink transmit beam for transmitting an uplink transmission when an uplink transmit beam is not configured by a base station for the uplink transmission. The example method also includes transmitting, to the base station, the uplink transmission on the default uplink transmit beam.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may receive, from a second UE, a sidelink communication that indicates a first subset of local training data of a set of local training data associated with the second UE. The UE may transmit a combined local update that is based at least in part on training a machine learning component based at least in part on the first subset of local training data and a second set of local training data associated with the first UE. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may obtain a trigger condition associated with reporting a difference between a quality of a downlink reference signal and a quality of a Type-D quasi co-located (QCL) source reference signal associated with a physical downlink shared control channel (PDSCH). The UE may transmit, to a network node, a detection indication associated with detecting the trigger condition. Numerous other aspects are described.

Abstract: Aspects of the present disclosure disclose techniques and apparatuses for beam prediction and configuration of a beam prediction module. Beam prediction can reduce overhead and latency in wireless communication. A wireless communication device can select one or more beams based on beam prediction or beam measurements. A wireless apparatus can communicate with a network entity using a first beam set. The wireless apparatus can communicate with the network entity using a second beam set that is predicted using a beam prediction model based on at least in part the first beam set. The wireless apparatus can change the beam prediction model in response to a change of a prediction condition that includes at least one of a discontinuous reception (DRX) mode of the UE, a change in UE mobility, a prediction error of the beam prediction model, or an interference level.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may use a first communication beam to communicate with a network entity. While using the first communication beam, the UE may determine a second communication beam for use after the first communication beam. Based on the determination, the UE may predict a change in a communication parameter of the UE associated with to the second communication beam. Before switching from the first communication beam to the second communication beam, the UE may transmit to the network entity a message that indicates the predicted change in the communication parameter and a time to switch to the second communication beam.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication to switch from a first transmission configuration indicator (TCI) state associated with a first cell to a second TCI state associated with a second cell. The UE may apply the second TCI state, including switching from a first bandwidth part (BWP) associated with the first cell to a second BWP associated with the second cell. For example, the UE may receive an indication to switch from the first BWP to the second BWP. Additionally, or alternatively, the UE may determine to switch from the first BWP to the second BWP based at least in part on the indication to switch from the first TCI state to the second TCI state. Numerous other aspects are described.