Abstract: In a particular implementation, a method of wireless communication includes transmitting, from a first user equipment (UE) to a second UE, a radio resource control (RRC) request that includes a first discontinuous reception (DRX) preference at the first UE. The method also includes receiving, at the first UE from the second UE, a RRC setup message that includes a second DRX preference at the second UE. The method further includes transmitting, from the first UE to the second UE, a RRC setup complete message that includes an indication of a confirmed DRX cycle.

Abstract: Method, apparatus and systems are disclosed. In one representative embodiment, a method may be implemented by a wireless transmit/receive unit (WTRU) for communication via a network access point (NAP). The method may include the WTRU receiving from the NAP a set of preambles and corresponding propagation delay related thresholds and determining propagation delay related information associated with a distance between the WTRU and the NAP or a location in a coverage of the NAP. The method may further include selecting a subset of preambles from the set of preambles based on the determined propagation delay related information, randomly selecting a preamble from the selected subset of preambles, and sending the randomly selected preamble to the NAP.

Abstract: Certain aspects of the present disclosure provide techniques for full-duplex sidelink synchronization. A method that may be performed by a user equipment (UE) includes monitoring for a first synchronization block (SSB) at a first frequency location and at a first occasion within a period and transmitting a second SSB at a second frequency location and at the first occasion within the period.

Abstract: Certain aspects of the present disclosure provide techniques for sub-band full-duplex resource management for sidelink. A method that may be performed by a user equipment first (UE) includes transmitting, to a second UE, information indicating one or more resource assignments for one or more transmissions to the second UE and communicating with the second UE in a full-duplex manner based on the one or more resource assignments.

Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for sidelink resource selection with AD usage awareness. A UE may receive, from one or more ANs, one or more resource usage schedules associated with one or more ADs in communication with the one or more ANs. The UE may combine the one or more resource usage schedules associated with the one or more ADs into a combined resource usage schedule. The usages may be associated with the combined resource usage schedule, which may be indicative of excluded resources for a transmission of the UE. The UE may transmit, based on the combined resource usage schedule, the transmission of the UE on a resource other than the excluded resources.

Abstract: Disclosed are techniques for wireless positioning. In an aspect, a road-side unit (RSU) may join a first sidelink (SL) ranging session between a first user equipment (UE) and a second UE. The RSU may perform SL ranging with the first UE to determine first ranging information comprising at least a RTT to the first UE. The RSU may perform SL ranging with the second UE to determine second ranging information comprising at least a RTT to the second UE. The RSU may send the first ranging information and the second ranging information to at least one of the first UE or the second UE, or calculate a range between the first UE and the second UE based on the first ranging information and the second ranging information, and send the range to at least one of the first UE and the second UE.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a base station, information related to a concurrent reception capability using different receive beams. The UE may receive, from the base station, information indicating one or more slots in which concurrent sidelink and downlink reception is enabled based at least in part on the information related to the concurrent reception capability. The UE may receive, in the one or more slots in which concurrent sidelink and downlink reception is enabled, a downlink transmission from the base station using a first receive beam and a sidelink transmission from a peer UE using a second receive beam. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. For example, a base station may receive, from a first user equipment (UE), an uplink message that includes one or more sidelink communication identifications each associated with a different UE of a set of one or more UEs and may associate each of the one or more sidelink communication identifications with a corresponding second identification also associated with each of the set of one or more UEs. The base station may transmit one or more signals for transitioning each of the set of one or more UEs associated with the set of second identifications from an inactive mode to an active mode based on associating each of the set of one or more sidelink communication identifications with the second identification of the set of second identifications.

Abstract: Aspects relate to techniques for estimating relative pose leveraging lane markers. A first wireless communication device may receive a message from a second wireless communication device including a plurality of visual features (e.g., keypoints) of an image captured by the second wireless communication device, lane features identifying two (or more) traffic lane markers, and respective two-point two-line (2L2P) metrics for pairs of keypoints based on the traffic lane markers. The first wireless communication device may then obtain additional features from an additional image captured by the first wireless communication device and identify matching keypoints of the additional features for which the respective 2L2P metrics are satisfied. The first wireless communication device may then calculate a relative pose of the first wireless communication device with respect to the second wireless communication device based on the matching features.

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may receive an indication of one or more parameters for communications over a sidelink channel during a first time period, where the one or more parameters may include a time threshold for a second resource pool. The wireless device may transmit data over a first resource pool of the sidelink channel during a first portion of the first time period based on the one or more parameters, the first resource pool including resources for communications between the first wireless device and a second wireless device. The wireless device may monitor the second resource pool during a second portion of the first time period for the time threshold, the second resource pool including resources for communications between the first wireless device and a third wireless device.

Abstract: Aspects of the present disclosure leverage the association of the multiple user equipments (UEs) in order to minimize the need for separate random access channel (RACH) procedures and beam management procedure for each UE within the group, and in turn minimize network congestion and probability of traffic collisions.

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support visual sensing for positioning. In a first aspect, a method of wireless communication includes receiving a first image of an object from an image capture device. The method also includes receiving location information that includes a coordinate point, a position of the UE determined based on the coordinate point, or a combination thereof. The coordinate point is generated based on a relative orientation between the UE and a network entity, and a matched pair of points including a first point of the first image and a second point of a second image of the object captured by the network entity. Other aspects and features are also claimed and described.

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. The method includes identifying a feedback channel configuration that maps a set of multiple subchannels of a sidelink channel to a set of multiple feedback resources of a feedback channel of the sidelink channel, receiving control signaling scheduling the full duplex UE to transmit or receive a first sidelink message in a first subchannel of the set of multiple subchannels, assigning a first feedback resource of the set of multiple feedback resources for transmission or reception of feedback for the first sidelink message that differs from a default resource identified by the feedback channel configuration, and communicating feedback data for the first sidelink message in the first feedback resource of the feedback channel based on the assigning.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may receive, from a network node and using a first access link, a first indication of an access link wake-up signal associated with a second access link between a second UE and the network node. The first UE may transmit, based at least in part on using a sidelink between the first UE and the second UE, a second indication of the access link wake-up signal to the second UE. Numerous other aspects are described.

Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for warning pedestrians, for example, of potential collisions with vehicles. The techniques may be considered a hybrid approach to reaching a pedestrian, in that it may employ a combination of interfaces (e.g., the radio interface between the pedestrian UE and the radio access network as well as a sidelink interface between the pedestrian UE and vehicle UE).

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for a user equipment (UE) to select a synchronization signal from multiple synchronization signals received at transceiver nodes of the UE based on configured selection rules. The UE may receive control signaling from another UE, a base station, or some other device indicating a rule for selecting between multiple synchronization signals received across transceiver nodes of the UE. The selection rule may indicate signal quality comparison metrics for selecting the synchronization signal, such as reference signal received power (RSRP) metrics, timing metrics, priority metrics, or a combination thereof. The UE may select a synchronization signal for deriving a timing at the UE based on the selection rule. The UE may forward the selected synchronization signal to one or more other UEs by transmitting the selected synchronization signal via each transceiver node at the UE.

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may be associated with a reconfigurable surface for reflecting transmissions between second and third UEs (e.g., over sidelink resources). In one example, the first UE may transmit signaling indicating that retransmissions of a first message transmitted between a second and third UE and detected by the first UE may be reflected by the reconfigurable surface associated with the first UE. In another example, the first UE may receive a request from a second UE for signal enhancement using a reconfigurable surface, the request associated with a future transmission by the second UE to a third UE. In either case, the UE may determine to perform signal enhancement using a reconfigurable surface and may then reconfigure the reconfigurable surface for reflecting transmissions or retransmissions from the second UE to the third UE.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may receive, from a base station or a roadside unit (RSU), information associated with one or more security keys for sidelink communications, wherein the information includes at least one of a base key, the one or more security keys, or one or more parameters for deriving the one or more security keys. The UE may transmit, to a second UE, a sidelink communication that is scrambled using a security key of the one or more security keys. 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 central network node, configuration information for reporting UE positioning information or distributed network node positioning information. The UE may identify one or more distributed network nodes based at least in part on respective connections between the one or more distributed network nodes and the UE or based at least in part on measurement information. The UE may obtain one or more encrypted identifiers respectively associated with the one or more distributed network nodes. The UE may transmit, to the central network node, the one or more encrypted identifiers in accordance with the configuration information. Numerous other aspects are described.