Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first device may receive, from a second device, a sounding reference signal (SRS) prior to a scheduled communication. The first device may transmit, to the second device, an indication that a measurement of the SRS does not satisfy a threshold, if the measurement of the SRS does not satisfy the threshold. The first device may activate, based at least in part on the transmitting the indication and before the scheduled communication, a multi-point communication 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 identify that a sidelink communication is to be transmitted by the UE prior to a next sensing results sharing opportunity associated with a collaborative sensing schedule that is associated with resource selection for sidelink communications for a group of UEs that includes the UE. The UE may select resources for the sidelink communication. The UE may transmit the sidelink communication using the resources. Numerous other aspects are described.

Abstract: Certain aspects of the present disclosure provide techniques for channel reservation for sidelink. In some embodiments, the disclosure describes determining a resource allocation for communicating over a plurality of subchannels within a slot, wherein the resource allocation provides: (i) a first set of subchannels of the plurality of subchannels allocated for communicating data to multiple UEs, and (ii) a first subchannel of the plurality of subchannels allocated for communicating a group reservation signal comprising communication parameters indicative of at least the resource allocation for the first set of subchannels.

Abstract: Methods, systems, and devices for wireless communications are described. A first device may identify first sidelink communication timing of a first UE and a second sidelink communication timing of a second UE. The first UE and the second UE may be in communication with the first device. The first device may determine a sidelink timing offset to be used by the first device in repeating a sidelink message between the first UE and the second UE. The first device may determine the sidelink timing offset based at on the first sidelink communication timing and the second sidelink communication timing. The first device may repeat the sidelink message between the first UE and the second UE in accordance with the sidelink timing offset.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that one or more conditions are satisfied for preemption of a scheduled sidelink transmission. The UE may transmit a sidelink preemption indication that indicates that a set of resources associated with the scheduled sidelink transmission are to be preempted. The UE may use the set of resources for transmission or reception of another communication. 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 an uplink grant that schedules a communication in a scheduled resource and that includes first transmission parameters associated with the scheduled resource. The UE may select, in response to the uplink grant being a soft uplink grant, second transmission parameters that include new transmission parameters not included in the first transmission parameters or include modified first transmission parameters. The UE may transmit the communication in the scheduled resource or a subset of the scheduled resource using at least the second transmission parameters. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. One or more user equipments (UEs) may support reserved resource indications for sidelink systems. In some examples, a first UE may transmit a first sidelink control message to at least a second UE in a first transmission time interval (TTI), which may schedule a first set of time-frequency resources for a sidelink message. The first UE may transmit the sidelink message to the second UE using the first set of time frequency resources. After transmitting the sidelink message, the first UE may transmit a second sidelink control message to the second UE in a second TTI, which may indicate the first set of time-frequency resources used for transmission of the sidelink message. In some examples, the second UE may perform a decoding procedure for the sidelink message based on the second sidelink control message.

Abstract: Methods, systems, and devices for wireless communications are described in which a first user equipment (UE) may transmit sidelink communications to a second UE, and the second UE may provide feedback associated with the sidelink communication to the first UE in a sidelink control information (SCI) transmission. In some cases, the SCI is first stage SCI transmitted in a sidelink control channel or second stage SCI transmitted in a sidelink shared channel. The feedback may include one or more of acknowledgment/negative-acknowledgment feedback, channel state information feedback, a scheduling request, or any combinations thereof. In some cases, the first UE may indicate resources of the second slot to the second UE for transmission of the feedback in the SCI, such as by providing a time offset value and resource index that identifies the resources.

Abstract: Apparatus, methods, and computer-readable media for facilitating multiplexing SCI-only grant and data-only SPS traffic on sidelink are disclosed herein. An example method for wireless communication at a first UE includes transmitting a sidelink transmission to a second UE at a first resource, the sidelink transmission including data-only traffic and scheduling information corresponding to future data traffic. The example method also includes transmitting a time offset indicator indicating a starting resource of the future data traffic.

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may receive control signaling indicating a semi-persistent scheduling configuration that identifies a plurality of resource occasions each comprising a plurality of resources of a sidelink channel allocated to the first UE for sidelink communication. The UE may identify a rescheduling configuration for scheduling transmission of a first message that has a possible conflict with transmission of a second message during a first resource of the plurality of resources of a first resource occasion of the plurality of resource occasions, the first message having a different priority than the second message. The UE may transmit the second message during the first resource occasion and may transmit the first message via the sidelink channel in accordance with the rescheduling configuration.

Abstract: Apparatus, methods, and computer-readable media for facilitating indicating cancelation of transmissions of sidelink messages are disclosed herein. An example method for wireless communication at a sidelink device includes transmitting SCI reserving a set of resources for one or more retransmissions of a message, the set of resources identifying one or more reserved resources in a time domain. The example method also includes identifying a skipped transmission associated with one or more of the set of resources reserved by the sidelink device. Additionally, the example method includes transmitting a cancelation indication indicating the skipped transmission, the cancelation indication indicating that the skipped transmission corresponds to a previous reserved resource in the time domain, a current reserved resource in the time domain, or a future reserved resource in the time domain.

Abstract: Certain aspects are directed to an assisting node (AN) for wireless communications. The assisting node may operate as a relay or repeater (e.g., smart repeater), and may be configured to decode control signals it receives from a network node. The control signals may provide the AN with scheduling and resource allocations, and/or instruct the AN to use particular capabilities in its communications. The AN may include a memory and one or more processors configured to receive, from a network node, an energy transfer configuration providing the AN with a resource allocation for transmission of an information signal to the network node, the information signal comprising an indication of a backscatter signal received from a passive node. The AN may also be configured to transmit, based on the resource allocation, the information signal to the network node.

Abstract: Aspects relate to a wireless communication device that forwards signals over different types of wireless communication links. For example, a wireless communication device may be configured to relay signals for a first type of wireless communication link (e.g., a cellular link such as a Uu link) and also relay signals for a second type of wireless communication link (e.g., a sidelink that uses a PC5 link). The disclosure relates in some aspects to techniques for configuring the wireless communication device to enable the signals for the different types of wireless communication links to be forwarded in an effective manner.

Abstract: A first UE may select, based on a resource pool configuration for a sidelink communication, at least one of a first slot in time or a second slot in time of a plurality of slots. The plurality of slots may be associated with DMRS bundling. The first UE may configure, based on the DMRS bundling, at least one of one or more symbols in the first slot in time from a gap symbol to a non-gap symbol or one or more symbols in the second slot in time from an AGC symbol to a non-AGC symbol. The first UE may transmit, to a second UE, an indication of the configuration of the at least one of the one or more symbols in the first slot in time or the one or more symbols in the second slot in time.

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a first UE may receive an indication of first resources from a second UE. In some examples, the second UE may be a UE configured to receive a transmission from a third UE over the first resources. In some such examples, the first UE may transmit, to a fourth UE, a sidelink transmission over available resources that exclude the first resources. Additionally, or alternatively, the second UE may be a UE that received sidelink control information from the third UE indicating the resources for transmission by the third UE to a fourth UE. In some such examples, the first UE may transmit, to the second UE, a sidelink transmission over available resources that exclude the first resources.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a downlink message indicating a set of resources on which an uplink message is scheduled to be transmitted by the UE. The UE may identify a scheduling conflict with at least a portion of the set of resources, where the scheduling conflict may arise between the uplink message and a second communication at the UE. A network entity may for a cancellation indication indicating that transmission of the uplink message on at least a portion of the set of resources is preempted based at least in part on a scheduling conflict at the UE. The UE may transmit a cancellation indication to indicate that transmission of the uplink message on at least the portion of the set of resources is preempted based on the scheduling conflict.

Abstract: Certain aspects of the present disclosure provide techniques for downlink relaying for passive internet of things (PIoT) communication. An example method includes receiving, from a network entity in a wireless network, configuration information for communicating with at least one passive internet of things (PIoT) device and receiving, from the network entity, a PIoT message, the PIoT message including at least a PIoT relay command instructing the UE to communicate with the at least one PIoT device. The method also includes transmitting, based on the PIoT message, one or more signals to the at least one PIoT device in accordance with the configuration information.

Abstract: Positioning of one or more user equipments (UEs) is performed using broadcast common sounding reference signals (SRS) resources for positioning. The common SRS that is broadcast by a UE is received and measured by one or more base stations and one or more other UEs. The other UEs may have known positions and may server as anchor nodes for positioning. The other UEs may have known positions and may serve as a positioning (anchor) node or may have unknown positions and may be jointly positioned with the target UE. During joint positioning, each of the other UEs may similarly broadcast a common set of SRS that is received and measured by the base stations and other UEs for positioning. An angular measurement of the SRS broadcast by one or more UEs may be measured and used to resolve mirror symmetry in positioning solutions.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink control information including a sidelink cancellation indication indicating a cancellation of a communication in a communication resource that has an overlap with a physical sidelink control channel. The UE may transmit on the communication resource in accordance with the sidelink cancellation indication and a rule associated with the overlap with the physical sidelink control channel. Numerous other aspects are described.

Abstract: Wireless communications systems and methods related to communicating information are provided. A method of wireless communication performed by a user equipment (UE). The method of wireless communication also includes receiving a configuration from a network for uplink transmission using a first plurality of subcarriers, receiving an instruction from the network for interference cancellation with respect to the first plurality of subcarriers; calculating a plurality of symbols and modulating the plurality of symbols on a second plurality of subcarriers in accordance with the instruction from the network for interference cancellation; and transmitting a waveform to the network, the waveform including the first plurality of subcarriers and the second plurality of subcarriers.