Abstract: Methods and apparatus for power saving in a wireless network are disclosed. A Wireless Transmit/Receive Unit (WTRU) may comprise a transmitter, a receiver, and a processor. The processor may determine a processing state pertaining to behavior of the WTRU and determine a minimum amount of resources to be processed for one or more sets of physical resources based on the determined processing state. Each respective set of physical resources may comprise resources in time, and any of frequency or space. For each respective set of physical resources, the time may comprise a frame structure associated with a numerology applicable to the respective set of physical resources, the frequency may comprise any of a frequency location, a bandwidth, or the numerology, and the space may comprise one or more beams. The processor may process the determined minimum amount of resources of the one of more sets of physical resources.

Abstract: A method may include detecting a sidelink radio link failure and, in response, starting a first timer based on a first timer value associated with selection of a candidate node. The candidate node is a relay node or a network node. The relay node is selected for a connection reestablishment and configuration information is received that at least includes a second timer value associated with a second timer, which is associated with the connection reestablishment. The first timer is stopped upon selecting the candidate node. If the configuration information includes a third timer value associated with the connection reestablishment, the second timer is started using the third timer value upon selecting the candidate node. If the configuration information does not include the third timer value, the second timer is started using the second timer value upon selecting the candidate node. A reestablishment request message is then sent.

Abstract: An apparatus may be configured to determine whether to prioritize a sidelink (SL) logical channel group (LCG) based on an SL prioritization threshold and a UL prioritization threshold, on a condition that a UL prioritization threshold is configured. The apparatus may be configured to determine whether a prioritization value associated with the SL LCG is lower than the SL prioritization threshold. The apparatus may be configured to determine (e.g., at least) whether an uplink (UL) LCG has a prioritization value that is equal to or higher than the UL prioritization threshold. The apparatus may be configured to determine whether to prioritize SL buffer status reporting (BSR) based on a size of a UL grant and the determination of whether to prioritize the SL LCG. The apparatus may be configured to report a buffer status based on the determination of whether to prioritize the SL BSR.

Abstract: Systems, methods, and instrumentalities are described herein for sidelink discovery, for example, associated with relays, e.g., NR relays. Discovery data may be transmitted, for example, to initialize communication between devices. Discovery data may be transmitted alone or multiplexed with other data (e.g., sidelink data). Discovery data with a high priority may be transmitted alone. Discovery data with a low priority may be multiplexed with other data (e.g., other data received within a duration of time). Discovery data may be multiplexed with other data that share the same destination identity. Resource allocation may be performed, for example, based on whether the discovery data is transmitted alone or multiplexed with other data.

Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products directed to selection and/or reselection of WTRUs and paths are provided. Among such methods is a method that may be implemented in a first WTRU and may include determining first measurements based on first sidelink transmissions received from a second WTRU; receiving, from the second WTRU, second measurements associated with a path between the first WTRU and a third WTRU, wherein second measurements are based, at least in part, on sidelink transmissions exchanged between the third WTRU and the second WTRU or between the third WTRU and a fourth WTRU; determining a measurement of the path based on any of the first and second measurements; determining transmission parameters for transmitting discovery messages during a communication period based on any of the measurement of the path and quality of service criteria; and transmitting the discovery messages according to the transmission parameters.

Abstract: A wireless transmit/receive unit (WTRU) may perform a listen before talk (LBT) procedure associated with a sidelink (SL) bandwidth. The SL bandwidth may include a resource block (RB) set. The WTRU may determine a CSLF associated with the RB set of the SL bandwidth based on the LBT procedure. The WTRU may determine a resource for reporting the CSLF, for example, based on a priority rule. The priority rule may indicate that a licensed resource has a higher priority than an unlicensed resource. The priority rule may indicate that, if a consistent LBT failure is not detected on an unlicensed uplink (UL) resource, the unlicensed UL resource has a higher priority than an unlicensed SL resource. The WTRU may send a medium access control (MAC) control element (CE) using the determined resource. In examples, the MAC CE may indicate the RB set.

Abstract: A method and apparatus for selecting a resource for transmission may be performed by a WTRU. The method may comprise determining a priority of a data packet and determining a CBR of a resource pool. The WTRU may set a backoff counter to an initial backoff value, in accordance with at least one of the priority of the packet or the CBR. A CCA may be performed in a plurality of resource slots to determine whether the resource slots are available. The backoff counter may be decreased by the number of available resources in each slot. When the backoff counter reaches a threshold value, which may be set at 0, the resource for transmission may be randomly selected. The WTRU may then transmit data to another WTRU on the randomly selected resource.

Abstract: A first wireless transmit/receive unit (WTRU) may receive, from a second WTRU, sidelink control information (SCI), including first information indicating if a resource is reserved by the second WTRU, and second information indicating if the second WTRU is a power saving or non-power saving. The first WTRU may measure a reference signal receive power (RSRP) of signals transmitted by the second WTRU. The first WTRU may add a resource to a set of available resources if the first information indicates that the resource is not reserved by the second WTRU. If a resource is reserved, the WTRU may set an RSRP threshold to a first set or second threshold based on a power saving mode of the second WTRU. The first WTRU may add the resource to the set of available resources if the measured RSRP is less than the selected RSRP threshold.

Abstract: A wireless transmit receive unit (WTRU) may receive first data on a first physical sidelink shared channel (PSSCH) transmission. Further, the WTRU may transmit second data on a second PSSCH transmission. The WTRU may then determine, based on a first priority associated with the first data and a second priority associated with the second data, prioritization between a transmission of a first physical sidelink feedback channel (PSFCH) transmission associated with the first data and a reception of a second PSFCH transmission associated with the second data. Moreover, the WTRU may either, based on the prioritization determination, transmit, on the first PSFCH transmission, first hybrid automatic repeat request (HARQ) acknowledgement (ACK)/negative ACK (NACK) feedback associated with the first data, or receive, on the second PSFCH transmission, second HARQ ACK/NACK feedback associated with the second data.

Abstract: Methods and apparatuses for scheduling sidelink communications in unlicensed spectrum are disclosed. A method performed by a first wireless transmit/receive unit (WTRU) may comprise: obtaining a grant for transmission on a sidelink (SL); receiving, from a second WTRU or an additional WTRU, a transmission that includes first channel occupancy time (COT) information; on a condition that the grant is for transmission on the SL during a COT associated with the second WTRU or an additional WTRU, determining, from a transmission received from the second WTRU, the additional WTRU, or both the second and the additional WTRU, cast information; performing a listen before talk (LBT) procedure using a set of parameters associated with information received from the second WTRU or additional WTRU; and on a condition that the LBT procedure is successful, transmitting, based on the determined cast information, data that includes second COT information.

Abstract: Transmit and/or receive beamforming may be applied to the control channel transmission/reception, e.g., in mmW access link system design. Techniques to identify candidate control channel beams and/or their location in the subframe structure may provide for efficient WTRU operation. A framework for beam formed control channel design may support varying capabilities of mBs and/or WTRUs, and/or may support time and/or spatial domain multiplexing of control channel beams. For a multi-beam system, modifications to reference signal design may discover, identify, measure, and/or decode a control channel beam. Techniques may mitigate inter-beam interference. WTRU monitoring may consider beam search space, perhaps in addition to time and/or frequency search space. Enhancements to downlink control channel may support scheduling narrow data beams. Scheduling techniques may achieve high resource utilization, e.g., perhaps when large bandwidths are available and/or WTRUs may be spatially distributed.

Abstract: One or more method/devices/systems are disclosed herein that address problems that arise out of sending feedback in sidelink and/or between devices operating in unlicensed spectrum. For example, in some cases, a first device may need to send a transmission to a second device. The first device may be configured with information such that the first device can determine the necessary parameters to send the transmission using the configured information. In an example, the second (receiving) device may determine to provide feedback for a received transmission.

Abstract: Systems, methods, and devices for enabling simultaneous transmission of different types of transmission protocols. A device such as a wireless transmit receive unit (WTRU) may receive configuration information and receive a data packet from an upper layer of a protocol stack operating on the WTRU. The WTRU may then determine a transmission type for the data packet at a first time based on the configuration information and a condition. The WTRU may then transmit the data packet using the determined transmission type. The configuration information may include decision criteria associated with determining the transmission type and a set of logical channels that are associated with data properties. The transmission type may be one of a network scheduled mode, WTRU autonomously scheduled mode, LTE, NR, unicast, groupcast, or broadcast.

Abstract: Systems, apparatuses, and methods are disclosed for receiving downlink control information (DCI) that may include an indication of a reference measurement resource (RMR), receiving an indication of a measurement configuration, and receiving an indication of a feedback resource configuration. A measurement report based on the indication of an RMR, an indication of a measurement configuration, and an indication of a feedback resource configuration may be generated and may be transmitted to a network device.

Abstract: Methods and apparatuses for link management and recovery for sidelink relays are described herein. Methods may include transmitting packets to a network via a first relay and using a sidelink radio bearer (SLRB) configuration, wherein the transmitted packets include an identifier associated with the first relay: receiving a message identifying alternate relay; and detecting radio link failure. Methods may include obtaining signal quality measurements of reference signals associated with the alternate relay: selecting, from the alternate relay, a second relay having the highest signal quality; and transmitting, to the selected second relay, a reconfiguration message indicating to use the same SLRB configuration or an equivalent SLRB configuration. If a response indicates that reconfiguration of the second relay is successful, a packet may be transmitted via the second relay using the same or equivalent SLRB configuration. The packet may include an identifier associated with the second relay.

Abstract: A transmitting wireless transmit/receive unit (Tx WTRU) may receive configuration information that indicates one or more parameters. The one or more parameters may be associated with resource selection. The Tx WTRU may determine a first resource selection window and a second resource selection window. The first resource selection window may be associated with an active time of a receiving wireless transmit/receive unit (Rx WTRU). The second resource selection window may be associated with an inactive time of the Rx WTRU. The Tx WTRU may determine a first number of candidate resources associated with the first resource selection window. The Tx WTRU may determine a first number of candidate resources associated with the second resource selection window. In examples, the Tx WTRU may increase the first number of candidate resources associated with the first resource selection window to a second number of candidate resources associated with the first resource selection window.

Abstract: Systems, methods, and instrumentalities are described herein that may be associated with new radio (NR) vehicular communication (V2X) sidelink power saving for unicast and groupcast. A first wireless transmit/receive unit (WTRU) may receive a message. The message may indicate a set of configuration groups and/or one or more suitability selection parameters. The WTRU may receive, from a second WTRU, a first indication. The first indication may indicate that the second WTRU is associated with a first configuration group and a first priority group. The first WTRU may receive, from a third WTRU, a second indication. The second indication may indicate that the third WTRU is associated with a second configuration group and a second priority value. The first WTRU may select a configuration group from the set of configuration groups based on the first indication and the second indication.

Abstract: An apparatus may be configured to determine whether to prioritize a sidelink (SL) logical channel group (LCG) based on an SL prioritization threshold and a UL prioritization threshold, on a condition that a UL prioritization threshold is configured. The apparatus may be configured to determine whether a prioritization value associated with the SL LCG is lower than the SL prioritization threshold. The apparatus may be configured to determine (e.g., at least) whether an uplink (UL) LCG has a prioritization value that is equal to or higher than the UL prioritization threshold. The apparatus may be configured to determine whether to prioritize SL buffer status reporting (BSR) based on a size of a UL grant and the determination of whether to prioritize the SL LCG. The apparatus may be configured to report a buffer status based on the determination of whether to prioritize the SL BSR.

Abstract: A 5G UE achieves flexible SL time resource granularity by determining which UL/Flexible symbols/slots belong to a symbol-based SL resource pool and a slot-based SL resource pool based on SFI in RRC/GC-PDCCH. The UE then determines which resources are available in each pool based on sensing and selects a resource pool to use so that QoS/latency requirements are met.

Abstract: The present disclosure relates to an interactive content generation method and apparatus, and a storage medium and an electronic device. The method includes: displaying a content editing interface, wherein the content editing interface includes a canvas area, a material area and an interaction event area; displaying a target interactive scene image corresponding to a scene adding operation in the canvas area in response to the scene adding operation performed by a user in the content editing interface; adding, in response to a selection operation for a target material in the material area performed by the user, the target material to the target interactive scene image, and adding, in response to an interaction event configuration operation for the target material performed by the user in the interaction event area, an interaction event to the target material to obtain target interactive content.