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: Methods, systems, and devices for wireless communications are described. A communication device, otherwise known as a user equipment (UE) may receive a first beamformed transmission associated with a directional beam from another UE. The UE may measure a main lobe or at least one side lobe associated with the directional beam, and determine a level of interference at the UE based on the measuring. One or more of the main lobe or the at least one side lobe associated with the directional beam may cause interference to a second beamformed transmission associated with another directional beam from a base station. The UE may transmit a beam report including an indication of the main lobe or the at least one side lobe associated with the directional beam causing the interference to the second beamformed transmission associated with the other directional beam from the base station.

Abstract: Certain aspects of the present disclosure provide techniques for radio frequency identification (RFID) tag singulation. Certain aspects provide a method for wireless communication by a receiver, such as a passive RFID tag. The method generally includes receiving, from a transmitter (e.g., such as a reader), a value for a slot-counter parameter; initializing a slot counter based on the value for the slot-counter parameter; receiving, from the transmitter, a command to adjust the slot counter; adjusting the slot counter based on the command and a step value; and transmitting data to the transmitter via backscatter communication when the adjusted slot counter reaches a target value, wherein at least one of: the step value is greater than one, or initializing the slot counter is further based on a scaling factor.

Abstract: Methods, systems, and devices for wireless communications are described. A network entity may output an array configuration to a configurable reflective device (CRD), wherein the array configuration defines a first angle of reflection or refraction at a first frequency and a second angle of reflection or refraction at a second frequency for a reflective array of the CRD. The network entity may output a first transmission, to a first user equipment (UE) via the CRD, at the first frequency according to the array configuration, the first frequency selected based on the first angle of reflection or refraction and a first location of the first UE. The network entity may output a second transmission, to a second UE via the CRD, at the second frequency according to the array configuration, the second frequency selected based on the second angle of reflection or refraction and a second location of the second UE.

Abstract: Methods, systems, and devices for wireless communication are described. In some systems, a first device may generate a plurality of signals via a first circular antenna array that contains a first quantity of antenna elements disposed in a circle. The first device may transmit a first signal of the plurality of signals using a first orbital angular momentum (OAM) mode and a first subset of the first quantity of antenna elements. Additionally, the first device may transmit, a second signal of the plurality of signals using a second (OAM) mode and a second subset of the first quantity of antenna elements, where the second subset may be exclusive of the first subset.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a control message indicating at least two precoding matrices and a set of weighting coefficients. The at least two precoding matrices and the set of weighting coefficients may be indicated to the UE for deriving a precoder for uplink transmission from the at least two precoding matrices. The UE may derive the precoder for transmission of an uplink message based on interpolating or extrapolating the at least two precoding matrices using the set of weighting coefficients. The UE may transmit the uplink message. The uplink message may be precoded using the precoder.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network entity, an indication of a first sidelink grant associated with a first set of resources. The UE may receive, from the network entity, an indication of a second sidelink grant associated with a second set of resources, wherein the first set of resources at least partially overlaps in a time domain with the second set of resources. The UE may perform an action based at least in part on the first set of resources at least partially overlapping in the time domain with the second set of resources. The UE may transmit one or more sidelink messages using at least one of the first sidelink grant or the second sidelink grant based at least in part on performing the action. Numerous other aspects are described.

Abstract: The UE in a FD operation may receive scheduling information including timing information for reporting a self-interference measurement, and transmit a self-interference measurement report including the self-interference measurement based on the scheduling information received from a network node. The UE may transmit a request for the self-interference measurement report to the network node prior to receiving the scheduling information.

Abstract: This disclosure provides systems, methods and apparatuses for controlling foldable user equipment (UE) functionality according to an indication to change a separation angle between a first portion of the foldable UE and a second portion of the foldable UE. Some examples involve providing a prompt to change the separation angle. In some examples, the indication may be associated with transmission of signals, reception of signals, a downlink data rate, an uplink data rate, or a combination thereof. According to some examples, providing the prompt may involve providing a visual prompt, providing an audio prompt, providing a sensory output, or a combination thereof.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of one or more bandwidth part (BWP)-specific access link parameters and one or more BWP-specific sidelink parameters. The UE may perform at least one of access link communication with a base station based at least in part on the one or more BWP-specific access link parameters, or sidelink communication with another UE based at least in part on the one or more BWP-specific sidelink parameters. Numerous other aspects are provided.

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may receive control signaling indicating a set of component carriers allocated for sidelink communications performed by the first UE. The first UE may receive a message indicating a subset of component carriers from the set of component carriers for use in communicating via a sidelink between the first UE and a second UE, where the subset of component carriers may be supported by the first UE and the second UE. In some cases, a base station or anchor UE may determine or configure the subset of component carriers for use between the first and second UEs. In some cases, the first UE, the second UE, or a both may determine the subset of component carriers. The first UE may communicate with the second UE via a component carrier from the subset of component carriers.

Abstract: Methods, systems, and devices for wireless communications are described. A base station may identify an applicable restricted resource scheduling rule for restricting full-duplex operation on a first set of resources. The base station may transmit one or more control messages scheduling one or more full-duplex communications on a second set of resources based on the applicable restricted resource scheduling rule for restricting full-duplex operation on the first set of resources. In some examples, the second set of resources may overlap in time with the first set of resources. In other examples, the second set of resources may not overlap with the first set of resources in time or frequency. Accordingly, the base station may communicate the one or more full-duplex communications on the second set of resources. The described techniques may enable the base station to perform full-duplex communications with reduced interference and improved reliability.

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: Disclosed are techniques for wireless communication. In an aspect, a position estimation entity, obtains first timing information that is associated with a first time-of-arrival (TOA) measurement of a first reference signal for positioning (RS-P) as communicated between a target user equipment (UE) and a base station with a first time basis, obtains second timing information that is associated with a second TOA measurement of a second RS-P as communicated between the target UE and a reference UE associated with a known location and having a second time basis that is different than the first time basis, determines a bias between the first time basis and the second time basis, and determines a position estimate of the target UE via a time differential of arrival (TDOA) positioning technique based at least in part upon the first timing information, the second timing information, and the bias.

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: Certain aspects of the present disclosure provide techniques for reporting and configuring antenna panel pairs for full-duplex communication. A method performed by a user equipment includes transmitting, to a base station (BS), antenna panel information indicating one or more pairs of antenna panels that are capable of full duplex communication with the BS, receiving, from the BS, configuration information indicating at least one pair of antenna panels, from the indicated one or more pairs of antenna panels, for the full duplex communication, and using the at least one pair of antenna panels for the full duplex communication with the BS.

Abstract: Certain aspects of the present disclosure provide a method for wireless communication at a first user equipment (UE). The method generally includes receiving, from a second UE, sidelink control information (SCI) scheduling a physical sidelink shared channel (PSSCH), determining a sequence for providing feedback for the PSSCH, from a plurality of possible sequences, based on one or more parameters, and transmitting the sequence via a physical sidelink feedback channel (PSFCH) as feedback for the PSSCH.

Abstract: Aspects described herein relate to receiving, from a network node, a first indication of a set of candidate downlink beams corresponding to multiple downlink beams received from one or more transmit/receive points (TRPs), receiving, from the network node, a second indication of a set of candidate uplink beams of multiple uplink beams, wherein at least one downlink beam in the set of candidate downlink beams includes a downlink beam combination of multiple downlink beams or at least one uplink beam in the set of candidate uplink beams includes an uplink beam combination of multiple uplink beams, and performing beam pair measurements of each candidate downlink beam in the set of candidate downlink beams received while transmitting each candidate uplink beam in the set of candidate uplink beams to select a set of candidate beam pairs each including one of the candidate downlink beams and one of the candidate uplink beams.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration that indicates, within each symbol of a plurality of symbols, an extra guard interval (GI) before data and a tail GI after the data. The UE may decode first data within a first symbol of the plurality of symbols at a first time location that is based at least in part on the extra GI and the tail GI within the first symbol. The UE may decode second data within a second symbol of the plurality of symbols at a second time location that is based at least in part on the tail GI within the second symbol. Numerous other aspects are described.