Abstract: Certain aspects of the present disclosure provide a method for wireless communications between a first UE and a second UE. The method includes, at the first UE, receiving, from the second UE, a paging indication message on a sidelink channel, the paging indication message associating the first UE with one or more resources of a common resource pool that includes a plurality of resources for communication on the sidelink channel. The method further includes, based on the received paging indication message, monitoring the one or more resources for a message from the second UE.

Abstract: Methods, systems, and devices for sidelink wireless communications are described in which a user equipment (UE), such as a vehicle UE, that supports full-duplex communications may transmit a sidelink control channel during a set of time resources including scheduling information for a subsequent transmission by the UE via a first set of resources. The UE may receive a sidelink control channel during the set of time resources from a second UE that may support full-duplex communications or half-duplex communications. The sidelink control channel may include scheduling information for a subsequent transmission via a second set of time-frequency resources that at least partially overlaps with the first set of time-frequency resources. The first UE may determine that a collision will occur and may perform a resource selection procedure or may transmit a request for the second device to perform the resource selection procedure.

Abstract: A wireless transmit/receive unit (WTRU) may identify a plurality of candidate satellite constellations. The WTRU may determine an elevation angle and/or an orbit associated with each of the plurality of candidate satellite constellations. The WTRU may select a satellite constellation from the plurality of candidate constellations for sell selection. The WTRU may identify a plurality of candidate beams associated with the selected satellite constellation. The WTRU may determine an RSRP/RSRQ for each of the plurality of candidate beams. The WTRU may determine a weighted ranking of the plurality of candidate beams. The WTRU may determine the weighted ranking using the determined RSRP/RSRQ, prevailing load intensities, elevation angle, dwelling duration, link switch probability, and/or a quality of service (QoS). The WTRU may select a beam from the plurality of candidate beams for cell selection. The WTRU may select the beam based on the weighted ranking.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE), may receive, at a processing layer of the UE, sets of discontinuous reception (DRX) cycle parameters from a corresponding set of applications at an application layer of the UE. The UE may determine, based on the sets of DRX parameters, a common DRX cycle to satisfy each of the sets of applications. The UE may transmit the common DRX cycle to one or more layers in the user plane protocol stack of the UE. A base station may also receive a request, from the UE, for a set of DRX cycle parameters that satisfies the common DRX cycle of the UE. The base station may transmit an indication of the set of DRX parameters, and receive, from the UE, a confirmation of a DRX cycle associated with the set of DRX cycle parameters.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a node, a request for a security key for sidelink connectionless groupcast communication that is performed without a radio resource control connection between UEs. The request may indicate a distance from the UE for using the security key. The UE may receive, from the node, information that indicates the security key. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a receiver user equipment (UE) may receive at least one control communication that includes a first part and a second part. The UE may determine an authenticity status of the at least one control communication based at least in part on at least one of a common security key corresponding to the first part or a private security key corresponding to the second part. The UE may perform a wireless communication task based at least in part on the authenticity status of the at least one control communication. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may receive, from a base station, information associated with training or configuring an assisting device to provide assistance for a unicast link of a user equipment (UE). The wireless communication device may train the assisting device based at least in part on the information associated with the training or configuring the assisting device. Numerous other aspects are described.

Abstract: A method of wireless communication by a first user equipment (UE) includes requesting multi-static channel sensing estimates from a device to establish a communications link with a second UE, and receiving the multi-static channel sensing estimates from the device. The method further includes setting communication parameters based on the multi-static channel sensing estimates. The method still further includes communicating with the second UE over the communications link based on the communication parameters.

Abstract: A wireless transmit/receive unit (WTRU) may include one or more antennas and a first transceiver operatively coupled to the antennas. The one or more antennas and the first transceiver may be configured to receive a first signal from a network using zero energy from the WTRU. The one or more antennas and the first transceiver may be further configured to extract energy from the first signal. The first transceiver may be further configured to examine a separation between energy threshold events to decode an energy signature of the first signal. The first transceiver may be further configured to activate a second transceiver operatively coupled to the one or more antennas if the decoded energy signature matches a stored energy signature, wherein the second transceiver is powered by the WTRU. The one or more antennas and the second transceiver may be configured to receive a second signal from the network.

Abstract: Certain aspects of the present disclosure provide techniques for reconfigurable intelligent surface-based interference cancellation. A method that may be performed by a network entity generally includes determining to perform interference cancellation with a reconfigurable intelligent surface (RIS) for interference that will occur at a first wireless node based at least in part on one or more criteria, wherein the interference includes an interfering signal that will be transmitted by a second wireless node; and performing the interference cancellation with reflections from the RIS in response to the determination.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless communication device may determine that a second wireless communication device is to communicate with a third wireless communication device using one or more beams that pass through a target area. The first wireless communication device may obtain information indicating a first object that is approaching the target area and that has a beam blocking size above a threshold. The first wireless communication device may cause the one or more of the second wireless communication device or third wireless communication device to adjust usage of the one or more beams during an expected blockage time in the target area. Numerous other aspects are described.

Abstract: Apparatus, methods, and computer-readable media for facilitating scrambling of sidelink control information for sidelink communication are disclosed herein. The scrambling of the SCI may include scrambling CRC, scrambling information bits, and/or scrambling channel bits. An example method for wireless communication at a user equipment UE includes scrambling at least a portion of SCI. The example method also includes transmitting the SCI carrying control information for a sidelink transmission. In another aspect, an example method for wireless communication at a UE includes receiving SCI having scrambled bits. The example method also includes decoding the SCI based on information known to the UE.

Abstract: Methods, systems, and devices for wireless communications are described in which a vulnerable road user (VRU) user equipment (UE) indicates to a user whether a current position accuracy is sufficient or insufficient for approaching vehicles to determine if they present a hazard to the VRU. The position accuracy may be based on an accuracy threshold that is configured at the UE, such as by a serving base station or a road side unit (RSU). The accuracy threshold may be configured via common or dedicated signaling, through application-layer signaling, or may be pre-configured in the UE. When the VRU UE position accuracy exceeds the specified threshold for a particular interval of time, the UE may inform the user that approaching vehicles will be unable to determine their location with enough accuracy to take evasive maneuvers.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a first safety message associated with the UE. The first safety message may be transmitted according to a first periodicity of a set of transmission periodicities for safety message transmissions. The UE may select a second periodicity of the set of transmission periodicities based on one or more environmental conditions associated with the UE. The UE may transmit a second safety message associated with the UE according to the second periodicity of the set of transmission periodicities based at least in part on selecting the second periodicity. The one or more environmental conditions may include topological information, road information, or visibility information. The UE may select the second periodicity based on one or more parameters associated with the UE.

Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for assisted mmW sidelink beam discovery in non-standalone mode. A UE may transmit, to an AN, a request to access one or more ADs. The request may be based on an absence of at least one BPL that has a threshold QoS for a DRB with a second UE. The UE may receive, from the AN based on the transmitted request, an authorization to access the one or more ADs, and exchange, via an SRB, beam training information with the second UE based on the authorization to access the one or more ADs for performing a beam training procedure via the one or more ADs.

Abstract: Aspects of this disclosure relate to a user equipment (UE) for wireless communication within a network. The UE receives, from a radio access network (RAN) entity, one of an uplink indication or an uplink port identification associated with an uplink port. The uplink indication and the uplink port identification are associated with an uplink message. The UE also maps one of the uplink indication to a sidelink indication associated with a sidelink message or the uplink port identification to a sidelink port identification associated with a sidelink port and the sidelink message. The UE further superposition codes the uplink message and the sidelink message into a broadcast transmission based on one of (A) the uplink indication and the sidelink indication, or (B) the uplink port and the sidelink port. In addition, the UE transmits, to the RAN entity, the broadcast transmission.

Abstract: Disclosed are techniques for wireless communication. In an aspect, a method of wireless communication performed by a first pedestrian user equipment (PUE) includes performing a ranging operation to a set of UEs, the set including at least a second PUE, and providing ranging data to a third entity, the third entity comprising a vehicle user equipment (VUE) or a road-side unit (RSU). The set of UEs may be randomly selected or selected using a selection algorithm. The set of UEs may be selected by the PUE or by the third entity. The ranging data may include the location of the first PUE, and may include a report on the battery status of the first PUE. The third entity may use the ranging data to update estimated positions of the first PUE and the set of UEs.

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) operating according to full duplex (e.g., transmit and receive concurrently) may adapt a transmit power of a sidelink feedback message based on priorities of data messages. For example, the UE may determine a priority of a first data message received at the UE in a previous slot and a priority of a second data message transmitted to the UE in a previous slot. Based on a comparison of the priorities of the data messages, the UE may adjust a transmit power for a feedback message indicating a decoding outcome of the first data message and transmit the feedback message according to the adjusted transmit power while receiving a feedback message indicating the decoding outcome of the second data message thereby increasing efficiency while reducing interference.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first mobile station may select a sequence that is to be used by a second mobile station to wake up and switch to a bandwidth part indicated by the sequence. The first mobile station may transmit the sequence to the second mobile station. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communication are described to support security techniques for ranging in wireless networks. A first device may transmit an indication to initiate a ranging procedure with a second device, and in response to the indication, the second device may transmit signaling to the first device and to one or more third devices. The first device and the one or more third devices may each determine a respective location metric associated with the second device based on the signaling. The one or more third devices may each transmit, to the first device, the respective location metric. Based on the communicated location metric(s), the first device may determine whether an eavesdropper is present and may communicate with the second device based on the determination.