Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive signaling indicating one or more selected priorities, of at least two priorities, to which a trigger for hybrid automatic repeat request (HARQ) feedback applies. The UE may receive downlink control information (DCI) including the trigger for the HARQ feedback and omitting a field indicating the one or more selected priorities. The UE may transmit the HARQ feedback for the one or more selected priorities in accordance with the signaling. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described that support signaling for energy harvesting at a first device. In some examples, the first device may transmit, to a second device, an indication of one or more an energy conversion efficiency factors, power threshold parameters, power levels, battery power levels, or the like. Based on receiving the indication of the one or more of the characteristics, the second device may determine a radio frequency power for subsequent signaling. The second device may transmit a signal having the determined radio frequency power, and the first device may receive the signaling and convert at least a first portion of the radio frequency power to direct current (DC) power.

Abstract: Methods, systems, and devices for wireless communication are described. A first user equipment (UE) may receive a control message that includes an indication to mute communications between the first UE and a second UE. The indication may be applicable to at least one communication link between the first UE and the second UE. The indication may include an identifier of the first UE, an identifier of the second UE, or an identifier of the at least one communication link. The first UE may receive the indication based on a power status of the first UE, a power status of the second UE, a reliability metric associated with the at least one communication link, or an interference metric associated with a network entity. Accordingly, the first UE may determine that the at least one communication link is muted for a time duration based on the indication.

Abstract: Certain aspects of the present disclosure provide techniques for interference measurement and reporting in sidelink. One aspect provides a method of wireless communication by a first user equipment (UE), including receiving signaling indicating resources, within a sidelink resource pool, that are configured for sidelink interference measurement. The method further includes transmitting, to at least a second UE, a first interference report that is based on interference measurements taken on the indicated resources.

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 or a network node, a configuration for a resource pool, wherein the resource pool is associated with a physical sidelink feedback channel (PSFCH) resource comprising more than two symbols. The first UE may receive, from the second UE, a sidelink transmission. The first UE may transmit, to the second UE and based at least in part on the sidelink transmission, a hybrid automatic repeat request (HARQ) acknowledgement (ACK) feedback based at least in part on the PSFCH resource comprising more than two symbols. Numerous other aspects are described.

Abstract: An apparatus may be configured to transmit a first indication of a maximum number of active periodic resource sets of a plurality of periodic resource sets at the first wireless device, where the plurality of periodic resource sets is configured for communication between the first wireless device and a second device, receive a second indication of a first state of the plurality of periodic resource sets, and transmit, based on a power-related characteristic of the first wireless device, a third indication of an update to the first state of the plurality of periodic resource sets.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a relay user equipment (UE) may receive a packet from a source node. The UE may identify a select mini-slot or a select sub-band for transmitting the packet based at least in part on a reference signal measurement that is indicated per mini-slot of a plurality of mini-slots or per sub-band of a plurality of sub-bands. The UE may transmit the packet to a destination node using the select mini-slot or the select sub-band. Numerous other aspects are described.

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for physical layer security for passive Internet of Things (IoT) devices. In some aspects, a source device and a reader device may communicate via a passive wireless device, such as an IoT tag, which may reflect or backscatter signaling from the source device to the reader device. The source device, the reader device, and the passive wireless device may secure communication in a physical layer (PHY) in accordance with one or more PHY security keys. As such, the source device may transmit a first message to the passive wireless device in accordance with a first PHY security key and the passive wireless device may transmit a second message to the reader device in accordance with a second PHY security key to secure communication to and from the passive wireless device.

Abstract: Methods, systems, and devices for wireless communications are described. The network may implement multi-stage energy handshake messages (e.g., wakeup indicators (WUIs and multi-stage wakeup notifications (WUNs))). The first-stage WUI and first-stage WUN may include minimal information (e.g., a sequence-based signal). Second stage WUIs may include an amount of data buffering for the UE, or an expected amount of time of communications during a next on duration. Second-stage WUNs may include confirmation that the UE 115 will receive the buffered data, or an indication of an amount of time required (e.g., a number of duty cycles or a number of seconds) to have enough energy to communicate. In some examples, the UE 115 may transmit WUNs prior to receiving WUIs. In some examples, the UE 115 may receive a multicast message prior to receiving a WUI.

Abstract: Techniques and devices for wireless communications are described. A user equipment (UE) may receive a message from a network entity. The message may indicate that the network entity transitioned from a first power mode to a second power mode. The first power mode may be associated with a phase continuity condition. The UE may determine a set of consecutive downlink messages transmitted from the network entity based on the received message. Each downlink message of the determined set of consecutive downlink messages may occur over a respective time interval and may satisfy the phase continuity condition. The UE may estimate a property of a channel for wireless communications between the UE and the network entity using the determined set of consecutive downlink messages.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control information indicating that a network entity supports key derivation associated with a random access procedure. Based on the control information, the UE and the network entity may measure one or more reference signals transmitted by the network entity during or prior to the random access procedure to generate a channel estimate of a wireless communication channel between the UE and the network entity. The UE and the network entity may communicate, during the random access procedure, an indication of a match or a mismatch between a first verification bit sequence generated by the UE using a first key derived from the channel estimate and a second verification bit sequence generated by the network entity using a second key derived by the network entity.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may transmit, and a user equipment (UE) may receive, a sounding reference signal (SRS) configuration that indicates a reference group among multiple antenna groups of an antenna array associated with the UE. The UE may transmit an SRS using one or more antennas in the reference group. The UE may transmit, to the base station, a correlation report that indicates an inter-group correlation between the multiple antenna groups associated with the UE. The base station may estimate a channel matrix for the multiple antenna groups based at least in part on the inter-group correlation and measurements of the SRS that is transmitted using the one or more antennas in the reference group. 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, from a network node and via a first receiver component associated with the UE, a wakeup signal (WUS) or a reference signal indicating information including at least one of cell barring information, downlink buffer status report information, or an indication to monitor a synchronization signal. The UE may communicate, via a second receiver component associated with the UE, one or more signals based at least in part on the information included in the WUS or the reference signal. Numerous other aspects are provided.

Abstract: Methods, systems, and devices for wireless communication are described. In some systems, a network entity may transmit, to a user equipment (UE), scheduling information that allocates multiple uplink channels of a same channel type to the UE. The scheduling information may indicate respective sets of frequency resources for each of the uplink channels. The network entity may transmit an indication that uplink channel selection by the UE is enabled. The UE may select a first uplink channel from the multiple uplink channels allocated by the scheduling information based on the indication that uplink shared channel selection is enabled. The UE may transmit an uplink message via the first uplink channel, and the UE may refrain from transmitting via other uplink channels of the multiple uplink channels allocated by the scheduling information based on selecting the first uplink channel.

Abstract: Methods, systems, and devices for wireless communications are described. A reconfigurable intelligent surface (RIS) controller may transmit a first message indicating a class of at least a first RIS of one or more RISs served by the RIS controller. The class may be associated with one or more capabilities of the first RIS. The RIS controller may receive a second message that includes an indication of one or more identifiers associated with the first RIS, where a quantity of the one or more identifiers may be associated with the first RIS based on the class associated with the first RIS. The RIS controller may receive a third message indicating, via the one or more identifiers, a configuration for the first RIS for communications between the first RIS and one or more network entities.

Abstract: Various aspects to reduce interferences in presence of a reconfigurable intelligent surface (RIS) are provided. In an aspect, a first device perform a first transmission using a first set of beams of the first device in response to an activated RIS for serving a second device to facilitate communication between the first device and the second device not being present. The first device may further perform a second transmission using a second set of beams of the first device in response to the activated RIS being present, the second set of beams being a subset of the first set of beams that excludes one or more beams of the first set of beams.

Abstract: Aspects presented herein may enable an LMF to configure AI/ML-based techniques/measurements for a set of base stations/TRPs to improve the performance of UL-based positioning. In one aspect, a network entity transmits a configuration to at least one network node to configure the at least one network node to perform an UL-based positioning measurement with at least one ML model, where each of the at least one ML model is associated with a corresponding ML model ID in which the at least one network node uses for the UL-based positioning measurement, where the UL-based positioning measurement is for a set of SRSs from a UE. The network entity receives the UL-based positioning measurement for the set of SRSs from the at least one network node. The network entity estimates a position of the UE based on the UL-based positioning measurement for the set of SRSs.

Abstract: Methods, systems, and devices for wireless communications are described that provide for configuration of sidelink resource pools that may include energy transfer resources configured for energy harvesting. A sidelink device such as a user equipment (UE) may receive control signaling for a sidelink communications resource pool. The control signaling may include an energy harvesting configuration for at least a portion of the sidelink communications resource pool, where the energy harvesting configuration indicates one or more of a waveform for energy harvesting transmissions or an energy transfer level of the energy harvesting transmissions. The UE may determine, based at least in part on the energy harvesting configuration, one or more energy harvesting parameters for communications with a second UE via the sidelink communications resource pool, and may communicate with the second UE based at least in part on the one or more energy harvesting parameters.

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may transmit a passive Intemet of Things (IoT) traffic report that indicates a set of passive IoT communications to be performed between the UE and one or more passive IoT devices. The UE may receive a scheduling grant from a network entity in response to the passive IoT traffic report. The scheduling grant may indicate a set of time and frequency resources allocated for the set of passive IoT communications between the UE and the one or more passive IoT devices. Accordingly, the UE may perform the set of passive IoT communications with the one or more passive IoT devices using the set of time and frequency resources indicated by the scheduling grant. The techniques described herein may enable the UE to perform passive IoT communications with fewer signal collisions and lower communication resource overhead.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling indicating a set of sidelink shared resources of a sidelink shared resource pool, a threshold quantity of mini-slot reservations for the set of sidelink shared resources, and an indication of a sidelink transmission mode of operation, where each slot of one or more slots of the set of sidelink shared resources may include multiple mini-slots. The UE may transmit to one or more sidelink UEs, sidelink control information that may include a reservation of a set of mini-slots of a first slot of the multiple slots, where the quantity of the set of mini-slots satisfies the threshold quantity of mini-slot reservations. The UE may transmit sidelink signaling to the one or more sidelink UEs, via the set of mini-slots according to the sidelink transmission mode of operation associated with the set of mini-slots.