Abstract: Some wireless communications systems may support deployment of ambient internet of things (IoT) devices, which include relatively low power and low complexity devices that are capable of harvesting energy from different sources, including radio frequency (RF) waves, solar energy, heat, or other ambient sources. Energy harvesting (EH)-capable devices such as ambient IoT devices may be used for applications such as inventory tracking, sensing, positioning, or command systems. Ambient IoT devices may be deployed for inventory reading or tracking. In some of the approaches described herein, unsynchronized duty cycle-based operations at EH-capable devices (e.g., ambient IoT devices) and multiple queries in a round from a reader may be utilized. For example, some of the techniques described herein may provide approaches for efficiently multiplexing multiple queries from different inventory rounds. For example, an inventory round may include multiple signaling instances to query one or more ambient IoT devices.

Abstract: Wireless communications systems and methods related to communicating control information are provided. A method of wireless communication performed by a user equipment (UE) may include performing a clear channel assessment (CCA), transmitting, to a first UE based on the CCA being successful, a first transport block (TB) via a first sub-PSSCH associated with a first sub-slot, and transmitting, to at least one of the first UE or a second UE, a second TB via a PSSCH associated with a slot.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may transmit, to a plurality of additional nodes, an indication of a channel estimation signal. The network node may transmit the channel estimation signal to be backscattered by a tag. Numerous other aspects are described.

Abstract: A UE may be configured to receive a first energy signal in a first frequency band or CC dedicated for WET from one or more frequency bands or CCs associated with the WET, and harvest radio-frequency energy from the first energy signal using a power harvesting circuit. An energy transmitter may be configured to obtain an indication of the first frequency or CC dedicated for the WET and transmit the first energy signal in the first frequency band dedicated for the WET to the UE. A network entity may configure the first frequency band or CC dedicated for the WET, configure at least one WIT band including one or more of a DL WIT band carrying a DL channel, an UL WIT band carrying an UL channel, or a SL WIT band carrying a SL channel for the UE to communicate a data signal.

Abstract: Some aspects described herein relate to receiving a configuration defining resources for transmitting a first message in a two-step random access procedure, wherein the first message includes a random access preamble and a payload, generating a beacon signal for transmitting as the first message, where the beacon signal includes one or more parameters to facilitate discovery by other UEs for pairing in sidelink communications, and transmitting, based on the configuration, the beacon signal as the first message over the resources.

Abstract: Certain aspects of the present disclosure provide techniques for configuring sidelink slots with multiple automatic gain control symbols. One aspect provides a method for wireless communication by a user equipment, including enabling a slot configuration comprising at least two symbols configured for use by a receiver for automatic gain control in preconfigured symbol locations within a slot, and transmitting the at least two symbols while transmitting symbols within the slot.

Abstract: Aspects presented herein may enable a UE to multiplex an SCI-exclusive message with a data-exclusive message/traffic. In one aspect, a first UE multiplexes SCI with a PSSCH in a slot, the SCI being associated with a control message and the PSSCH being associated with a data message, and the SCI including an indication that the SCI and the PSSCH are decoupled in the slot. The first UE transmits, to a second UE, the SCI and the PSSCH in the slot. In another aspect, a second UE receives, from a first UE, SCI and a PSSCH in a slot, the SCI being associated with a control message and the PSSCH being associated with a data message, and the SCI including an indication that the SCI and the PSSCH are decoupled in the slot. The second UE decodes the data message based at least in part on the indication.

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: 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: 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: A method, a computer-readable medium, and an apparatus are provided for wireless communication at a user equipment (UE) and a base station. The UE receives a configuration for a plurality of semi-persistent scheduling (SPS) occasions each SPS occasion including multiple opportunities for a downlink transmission by a base station. The UE monitors for the downlink transmission during one or more opportunities of an SPS occasion. The base station transmits a packet to the UE in an opportunity of an SPS occasion based on an arrival time of the packet. In various configurations, a base station may transmit first information via a first communication opportunity and second information via a second communication opportunity of that same SPS occasion. A wireless communication device may monitor all communication opportunities of an SPS occasion to decode the information sent in two or more of the communication opportunities of the SPS occasion.

Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support energy harvesting devices, which may harvest power from received radio frequency (RF) signaling. To support energy harvesting, a network entity may configure one or more frequency resources within a channel bandwidth for wireless energy transfer (WET). The network entity may transmit a broadcast signal indicating the configuration to multiple devices. An energy harvesting device may receive the broadcast signal, identify the frequency resources configured for WET, and perform energy harvesting using signaling received in the frequency resources. For example, the network entity, a user equipment (UE), or any combination of these or other energy providing devices may transmit signaling in the frequency resources configured for WET to provide power to energy harvesting devices.

Abstract: In some implementations, a first user equipment (UE) may obtain, a positioning configuration related to the SL positioning session. The first UE may perform one or more measurements of one or more radio frequency (RF) signals at the first UE in accordance with the positioning configuration, wherein the one or more measurements are performed to determine a location of: the first UE, one or more target UEs other than the first UE, or both. The first UE may send a message indicative of the one or more measurements, wherein the message is sent via multicast wireless communication from the first UE to a group of devices comprising a plurality of other UEs.

Abstract: Methods, systems, and devices for wireless communication are described. In some cases, an energy receiver (e.g., a passive radio frequency identifier (RFID) device) may receive one or more messages from one or more energy transmitters (e.g., network entities), each message identifying a cell associated with an energy transmitter and additional corresponding cell information, and indicating one or more resources on which the energy receiver may receive a reference signal for cell selection from the energy transmitter. The energy receiver may receive the reference signal and perform a measurement on the reference signal. In some cases, the energy receiver may select a cell based on the reference signal (e.g., the measurement) and the energy transmitter supporting energy harvesting. The energy receiver may transmit a second message that indicates the selected cell associated with the energy transmitter.

Abstract: A package comprising a first integrated device; an interposer coupled to the first integrated device; a passive device coupled to the first integrated device; a plurality of post interconnects coupled to the first integrated device; a second integrated device coupled to the interposer, the passive device and the plurality of post interconnects; and an encapsulation layer located between the first integrated device and the second integrated device.

Abstract: Certain aspects of the present disclosure provide techniques for wireless communication by an apparatus. A method includes receiving a synchronization signal, the synchronization signal including timing information associated with a directional beam sweep procedure, and power threshold information indicating beam power criteria evaluated during the directional beam sweep procedure; receiving, from the directional beam sweep, a first directional beam in accordance with the timing information, the first directional beam providing radio frequency energy for energy harvesting by the apparatus; measuring an amount of power associated with the first directional beam; comparing the measured amount of power to the power threshold information; and providing a feedback signal, wherein the contents of the feedback signal are based on the comparison with the power threshold information associated with the directional beam sweep.

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 first receiver, such as a passive RFID tag. The method generally includes receiving, from a transmitter, a first signal initiating a first inventory round and in response to receiving the first signal, backscattering a second signal to the transmitter, wherein the second signal is backscattered using resources specific to the first receiver.

Abstract: Aspects relate to enhancing communication between ambient IoT devices and network entities using wireless energy transmitter (WET) devices. A WET device may be configured to provide a continuous wave (CW) signal to an ambient IoT device to both power the ambient IoT device and facilitate backscattering and modulation of the CW signal by the IoT device. The IoT device may then transmit the backscattered and modulated CW signal as an uplink transmission to a network entity for processing of the modulated CW signal. The WET device may further avoid interference with a downlink transmission from the network entity by avoiding transmission of the CW signal within downlink slots, transmitting the CW signal within a different frequency band than the downlink transmission, and/or transmit the CW signal on a helper tone separated in frequency from a data tone of the downlink transmission.

Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit a grant to a first user equipment (UE) that indicates a resource allocation for a sidelink communication, either from the first UE to a second UE or from the second UE to the first UE. The grant may include a destination identifier associated with the sidelink communication, as well as a mapping between the resource allocation and the destination identifier. The destination identifier may be based on information in an indication received from the first UE. In some examples, the base station may configure a default receiver UE for transmissions from the first UE, and the base station may identify a receiver UE in the grant if the intended receiver UE is different than the default receiver UE.

Abstract: Method and apparatus for switching between SS-TWR and DS-TWR. The apparatus reserves resources for transmission of a first SL-PRS in a first time slot. The apparatus transmits, to a second UE, the first SL-PRS within the first time slot. The apparatus receives, from the second UE, a second SL-PRS at a second time based on the first time slot and a response time associated with transmission of the second SL-PRS in response to the first SL-PRS. The apparatus measures a time difference between the transmission of the first SL-PRS and reception of the second SL-PRS to determine if a third SL-PRS is to be transmitted to the second UE.