Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may obtain an indication of at least one rate matching configuration. The UE may communicate in a full duplex communication mode, wherein communicating in the full duplex communication mode comprises rate matching based at least in part on the at least one rate matching configuration. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A device may be configured to include an array of lenses along with multiple antenna arrays that each include a set of antenna elements. The antenna arrays may each support multiple beam directions, such as a respective beam direction for each lens of the array of lenses. If beams for multiple antenna arrays concurrently pass through the same lens, the lens may contribute to maintaining separation between the beams. Lenses may also contribute to the shaping of beams, and the use of multiple lenses may enhance a coverage area for beams transmitted or received by the antenna arrays.

Abstract: Methods, systems, and devices for connection setup in an orbital angular momentum (OAM)-based communication system are described. A first device and a second device may establish an OAM communications connection between the devices. The first device and the second device may exchange a series of messages over a downlink communications link and an uplink communications link according to an OAM mode. Based on OAM related parameters or OAM related information included in the messages, the first device and the second device may achieve a successful directional alignment (co-axial alignment) between the first device and the second device. The first device and the second device may determine one or more orbital angular momentum modes for communication between the first device and the second device based on the establishing the directional alignment.

Abstract: Methods, systems, and devices for wireless communication are described. Some wireless communications systems may support orbital angular momentum (OAM) communications. A transmitting network node may generate signals for transmission via a first circular antenna array that includes a first quantity of antenna subarrays. The transmitting network node may transmit the signals using the first circular antenna array and based on OAM vectors. The receiving network node may receive and decode the signals using a second circular antenna array that includes a second quantity of antenna subarrays and based on the OAM vectors. The OAM vectors may be based on a numerical relationship between the first quantity and the second quantity. The numerical relationship may include the first quantity being equal to a product of the second quantity and a non-integer rational number and a greatest common divisor of the first and second quantities being an integer greater than one.

Abstract: Disclosed are techniques for wireless communication. In an aspect, a wireless communication device detects a trigger to transmit a message via satellite connectivity, determines one or more alignment opportunities associated with one or more satellites, wherein each alignment opportunity of the one or more alignment opportunities is a time period during which a main lobe of an antenna of the wireless communication device is predicted to be aligned with a line-of-sight (LOS) direction to at least one satellite of the one or more satellites, transitions to a sleep state until at least one alignment opportunity of the one or more alignment opportunities, and transmits the message to the at least one satellite of the one or more satellites during the at least one alignment opportunity of the one or more alignment opportunities.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, for one or more nodes, capability information regarding a beam tracking capability of a backscattering radio of the UE. The UE may perform beam tracking in accordance with the beam tracking capability. The UE may transmit, for the one or more nodes, beam information based at least in part on the beam tracking. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communication at a user equipment (UE) are described. A UE may operate by asynchronously transmitting code division multiple access (CDMA) uplink signals to a network entity. The UE may transmit the CDMA signals via an uplink channel that may be shared with orthogonal frequency multiplexing (OFDM) signaling transmitted by one or more other UEs. The UE may indicate to the network entity a capability for communicating with CDMA waveforms and may use CDMA waveforms based on transmitting the indication. The UE may also receive one or more parameters associated with using the CDMA waveforms, and may use CDMA waveforms based on the one or more parameters. The uplink channel may be a random access channel (RACH) and may support RACH transmissions, or may be a data channel and support data transmissions.

Abstract: Embodiments include methods for managing component temperatures in wearable devices by a remote computing device, such as an edge server, instructing changes in wearable device component processing loads, operations or operating modes. Methods performed in a wearable device receiving data from an edge server may include obtaining a plurality of temperature measurements from a plurality of hardware components, transmitting the temperature measurements to the edge server, receiving an instruction related to operations of an application executing on the processor of the wearable device, and adjusting an operating parameter based on the received instruction.

Abstract: Methods, systems, and devices for wireless communications are described. A first device (e.g., a base station) may transmit reference signals to a second device (e.g., a user equipment (UE)) via transmitter antenna circles. The second device may receive and measure the reference signals via corresponding receiver antenna circles. Both the transmitter antenna circles and the in receiver antenna circles may include a center antenna circle and one or more peripheral antenna circles. The second device may transmit channel gain measurements to the first device based on measuring the reference signals. The first device may determine orbital angular momentum (OAM) modes, a power loading scheme, or both for the transmitter antenna circles based on the channel gain measurements. The first device may transmit OAM transmissions to the second device based on the determined OAM modes, the power loading scheme, or both. The OAM transmissions may have different OAM states, polarizations, or both.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may determine a reference location associated with a virtual image corresponding to a target area. The network node may transmit a radio frequency signal, wherein the radio frequency signal is beamformed based at least in part on the reference location to direct the radio frequency signal to the target area. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may be configured to transmit, to a second wireless device, one or more orbital angular momentum (OAM) signals in accordance with a set of radial codeword sequences associated with a polynomial radial codeword configuration, where the one or more OAM signals are transmitted based on a first value of a polynomial term for the polynomial radial codeword configuration. The first wireless device may receive, from the second wireless device on the one or more OAM signals, a feedback message indicating a second value of the polynomial term. The first wireless device may then transmit, to the second wireless device, one or more additional OAM signals in accordance with the set of radial codeword sequences and based on the second value for the polynomial term.

Abstract: An example method for obtaining data at a vehicle for automobile navigation based on cellular radio frequency (RF) sensing comprising obtaining, with a camera at the vehicle, a camera image of an environment surrounding the vehicle. The method further comprises determining a failure condition of the camera preventing object detection of the camera image, wherein the failure condition is caused by inclement weather, blockage on a lens of the camera, electrical failure of the camera, or a combination thereof. The method further comprises responsive to determining the failure condition of the camera, configuring a cellular communication interface of the vehicle to obtain cellular RF sensing data of the environment surrounding the vehicle. The method further comprises performing the automobile navigation support based at least in part on cellular RF sensing data of the environment surrounding the vehicle.

Abstract: Methods, systems, and devices for wireless communications are described for antenna selection and reporting for multiple-input multiple-output (MIMO) communications. One or more grouping parameters may be provided to a wireless node, which may indicate a subset of antennas that are to be used for MIMO communications, may indicate one or more target nodes for MIMO communications, or combinations thereof. The wireless node may measure one or more channel parameters based on the grouping parameters and determine one or more antenna subsets or target nodes that meet MIMO communication parameters (e.g., an antenna group or target node that will support a certain rank of MIMO communications). The wireless node may report an indication of the identified antenna subsets or target nodes to a control entity for scheduling of MIMO communications.

Abstract: Disclosed are systems and techniques for transferring device content using radio frequency (RF) sensing. For instance, a first wireless device can identify a first user of the first wireless device based on a first radio frequency (RF) signature associated with the first user. The first wireless media device can determine a disengagement of the first user from the first wireless media device. In response to the disengagement, content information associated with usage of the first wireless device by the first user can be captured.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of a set of frequency domain resources allocated to the UE for communicating data over a wireless channel. The UE may receive an indication of a waveform type associated with the set of frequency domain resources. The waveform type may be based at least in part on a data type of the data, may be used for a defined amount of time, and may be one of a plurality of waveform types that are multiplexed together over different frequency domain resources within a total system bandwidth. The UE may communicate within the set of frequency domain resources according to the indicated waveform type and the data type.

Abstract: A first device may select a base graph from a plurality of base graphs based on one or more of (a) a decoding complexity of a second device, (b) a device category of the second device, (c) a capability of the second device, (d) a decoder mode of the second device, (e) a receiver complexity of the second device, (f) a receiver mode of the second device, (g) a power consumption of the second device, (h) a power mode of the second device, or (i) an indication from the second device. The first device may output an LDPC coded transmission to the second device based on the selected base graph.

Abstract: Aspects presented herein may enhance the navigation function of navigation/map applications or systems when GNSS signals are weak or sporadic. In one aspect, a UE monitors a position of the UE based on GNSS communication, where the position of the UE is monitored using at least one first map layer of a plurality of map layers associated with a map. The UE detects that the position of the UE corresponds to a predefined location when the GNSS communication is below a communication threshold. The UE switches to monitoring the position of the UE using at least one second map layer of the plurality of map layers upon detecting that the position of the UE corresponds to the predefined location, where the at least one second map layer is associated with the predefined location.

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may detect a material proximate to the UE and may determine one or more properties of the material which may affect beamformed communications. The UE may transmit (e.g., based on the detected material) an indication of a switch from a codebook-based hybrid beamforming procedure to an adaptive beam weight-based hybrid beamforming procedure. The UE may receive, from a network entity, one or more reference signals to use for adaptive beam weight selection in response to the indication of the switch to the adaptive beam weight-based hybrid beamforming procedure. The UE may communicate, with the network entity, in accordance with one or more beam weights selected based on the adaptive beam weight-based hybrid beamforming procedure and the one or more reference signals.

Abstract: Methods, systems, and devices for wireless communications are described. A receiving device may receive, from a transmitting device, a configuration indicating a set of orbital angular momentum (OAM) modes for joint reporting, where at least one of the set of OAM modes is associated with transmission via two or more of a plurality of sets of antennas arranged in a set of concentric circular arrays. The receiving device may transmit, to the transmitting device, a report indicating precoding information for each of at least a subset of the set of OAM modes, where the precoding information includes one or more first parameters common to the set of OAM modes and one or more second parameters for respective ones of the at least the subset of the set of OAM modes.

Abstract: Methods, systems, and devices for wireless communications are described. A first device, such as a user equipment (UE) or base station, may receive, at a first antenna of a first antenna array, a first set of reference signals. The first device may measure the phase for each of the reference signals and estimate a linear offset between the first antenna array and a second antenna array of a second device that transmitted the reference signals. The first device may adjust an alignment of the first antenna array according to the estimated linear offset. The first device may receive a second set of reference signals, measure the phase for each of the reference signals, and estimate one or more rotational offsets between the first antenna array and the second antenna array. The first device may adjust the alignment of the first antenna array based on the one or more rotational offsets.