Abstract: A wireless transmit/receive unit (WTRU) is configured to receive configuration information from a network node for the alignment of one or more compressed channel state information (CSI) quantizers at the WTRU and the network node. The configuration information may indicate a plurality of CSI quantization settings and/or criteria for selecting from the plurality of CSI quantization settings. The WTRU may perform one or more CSI measurements on one or more reference signals. The WTRU may encode the one or more CSI measurements. The WTRU may select a CSI quantization setting of the plurality of quantization settings based on the criteria indicated in the configuration information. The WTRU may quantize the encoded one or more CSI measurements using the selected CSI quantization setting. The WTRU may send a feedback report comprising the quantized one or more CSI measurements and/or an indication of the selected CSI quantization setting to the network node.

Abstract: A wireless transmit/receive unit (WTRU) comprises a processor configured to receive configuration information that may include a sounding reference signal (SRS) configuration. The processor may receive a first request to report a number of identifiers that the WTRU supports, send a first report that indicates the number of identifiers that the WTRU supports, send a second report that indicates a first set of identifiers, receive a second request to report one or more conditions of the WTRU, send a third report that indicates a second set of identifiers, and determine whether to send an SRS transmission based on whether one or more of the conditions of the WTRU have changed.

Abstract: Systems and methods for predictive wireless communication management. In some implementations, a wireless transmit/receive unit (WTRU) may establish communications with a network node via a first physical communication channel; and determine that a difference between measured characteristics of a reference signal and measured characteristics of a previous reference signal exceeds a reporting threshold. The WTRU may transmit, to the network node responsive to the determination, an identification of the measured characteristics of the reference signal; and may receive, from the network node via the first physical communication channel, an indication of predicted beam failure generated responsive to receipt of the identification of measured characteristics of the reference signal. The WTRU may reconfigure, responsive to receipt of the indication of predicted beam failure, communications with the network node to utilize a second physical communication channel.

Abstract: A wireless transmit/receive unit (WTRU) may comprise a processor configured to receive configuration information that may include a first reconstruction quality (RQ) function and a second RQ function. The processor may determine a channel state information (CSI) based on a plurality of reference signals (RSs), determine a first plurality of RQ indicators for the first RQ function based on the first RQ function, determine a second plurality of RQ indicators for the second RQ function based on the second RQ function, select the first plurality of RQ indicators or the second plurality of RQ indicators based on the CSI vector, determine encoder input indices for each RQ indicator of the selected plurality of RQ indicators, generate an compressed encoder input vector based on the encoder input indices and send the compressed encoder input vector and information relating to the selected plurality of RQ indicators to the network.

Abstract: Method are disclosed for a wireless transmit receive unit (WTRU) including receiving configuration information including a plurality of access stratum (AS) configurations, where each AS configuration is associated with a quality of service (QoS) level specific to an ambient internet of things (AIoT) operation. The WTRU receives, on a Uu bearer from the base station, data for at least one AIoT device and based on the Uu bearer of the received data, the WTRU determines a select AS configuration with associated QoS level from the plurality of AS configurations. The WTRU transmits the received data to the AIoT device(s) using resource and transmission parameters of the select AS configuration with associated QoS level. Additional embodiments are disclosed.

Abstract: A WTRU operating in RRC connected mode in an AIOT cell, may receive a command from the cell triggering a transition to an inactive mode of operation, wherein the command may comprise a first RSRP bias to be used during evaluation of non-AIOT cells and a second RSRP bias to be used during evaluation of AIOT cells. The WTRU may measure RSRP values from one or more cells, and, based on determining that a measured cell is a non-AIOT cell or an AIOT cell, apply the first RSRP bias or the second RSRP bias. The WTRU may select, based on the biased cell measurement results, one cell from the one or more cells measured. The WTRU may send, to an application layer, based on selecting a cell which is a non-AIOT cell, an indication of the lack of support of AIOT operations in the selected cell.

Abstract: In one or more systems, method, and/or apparatuses, a carrier wave (CW) node may be selected for ambient internet of things (AIoT) device communication. In one example, one or more apparatuses (e.g., the CW node itself or one or more other entities), may require configuration to establish and facilitate communication with the AIoT device(s). In one example, a wireless transmit receive unit (WTRU) may select one or more transmission CW node(s) based on measurements from one or more candidate CW node(s). The WTRU may determine the transmission characteristics of the selected transmission CW node(s), and instruct the same.

Abstract: A wireless transmit/receive unit (WTRU) may receive, from a server associated with a trained artificial intelligence/machine leaning (AI/ML) model, a first association information. The first association information may comprise a first set of positioning reference signal (PRS) configurations on which the AI/ML model has been trained. The WTRU may receive a request for inferences related to a location of the WTRU via the AI/ML model. The WTRU may send a request for a second association information which may comprise a second set of PRS configurations. The WTRU may determine, by comparing the first and the second association information, the consistency between the first and the second association information based on PRS configurations of the first set of PRS configurations overlapping with PRS configurations of the second set of PRS configurations. The WTRU may implement the trained AI/ML model to generate inferences related to the location of the WTRU.

Abstract: A wireless transmit/receive unit (WTRU) is configured to receive information that indicates a first number of nominal repetitions and a first number of symbols for transmission in each of the first number of nominal repetitions. The WTRU is configured to determine a set of symbols associated with a first nominal repetition of the first number of nominal repetitions. The WTRU is configured to transmit, based on the set of symbols associated with the first nominal repetition, a second number of actual repetitions in symbols associated with the first nominal repetition. The second number of actual repetitions and the symbols used to transmit the second number of actual repetitions are based on an occurrence of an event during the set of symbols associated with the first nominal repetition and based on whether a channel occupancy is initiated by the WTRU or whether the channel occupancy is initiated by a network entity.

Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products for configuring, selecting, and/or feeding back data-driven UE-specific RS are provided. One method may include a WTRU determining and/or indicating, to a network element (e.g., gNB), data-driven UE-specific RS related information, such as bundling type, RS pattern, RS position, RS density, RS signaling feedback overhead, and/or performance requirements.

Abstract: The disclosure pertains to methods, architectures, apparatuses and systems for wideband operation for sidelink communications in unlicensed bands. In an embodiment, a method may be implemented in a wireless transmit/receive unit (WTRU). The method may include receiving scheduling information from a network for at least one sidelink transmission. The scheduling information may indicate a plurality of contiguous resource block (RB) sets. The method may include performing listen before talk (LBT) in the plurality of contiguous RB sets and, responsive to successful LBT in the plurality of contiguous RB sets, transmitting the at least one sidelink transmission in the plurality of contiguous RB sets. The at least one sidelink transmission may include sidelink control information indicating the plurality of contiguous RB sets used to transmit the at least one sidelink transmission.

Abstract: A WTRU may receive configuration information that includes a first measurement event, a second measurement event, a first action associated with the first measurement event, a second action associated with the second measurement event, criteria associated with the first measurement event, criteria associated with the second measurement event, and/or a condition. The WTRU may predict measurements based on the measurements that are determined based on the one or more reference signals. The WTRU may determine measurements. The WTRU may determine whether the first measurement event is fulfilled. The WTRU may determine whether the second measurement event is fulfilled. The WTRU may select the first action or the second action based on the condition, a determination of whether the first measurement event is fulfilled, and a determination of whether the second measurement event is fulfilled. The WTRU may perform the selected action.

Abstract: A wireless transmit/receive unit (WTRU) and method for synchronizing temporal-spatial-frequency (TSF) information for channel state information (CSI) feedback, comprising receiving configuration information which comprises network (NW)-assistance information associated with NW-side TSF sync information and a condition for detecting misalignment between WTRU-side TSF sync information and the NW-side TSF sync information. A misalignment event is determined to occur between the WTRU-side TSF sync information and the NW-side TSF sync information based on the NW-assistance information and the condition for detecting misalignment. A misalignment mitigation action is determined responsive to the determining that the misalignment event has occurred. The misalignment mitigation action comprising resetting the WTRU-side TSF sync information or retransmitting missing uplink control information (UCI). A report is sent.

Abstract: Methods, devices, and systems for ambient internet-of-things (AIoT) communications implemented in a wireless transmit/receive unit (WTRU). An indication of first resources for AIoT communications and an indication of a threshold number associated with the first resources are received. An indication of an AIoT procedure which indicates at least one AIoT device associated with the AIoT procedure is received. A request for additional resources for the AIoT communications is transmitted responsive to a quantity associated with the at least one AIoT device exceeding the threshold number. An indication of second resources is received responsive to the request for additional resources. An indication of the second resources is transmitted. In some implementations, the quantity associated with the at least one AIoT device includes a number of the at least one AIoT device. In some implementations, the quantity associated with the at least one AIoT device includes a number of failed prior communications.

Abstract: Methods and devices are disclosed contention resolution of Ambient Internet of Things (AIoT) devices. In one example, a wireless transmit receive unit (WTRU) receives, from a network, configuration information including a threshold number of devices to be queried, at least a first random ID size and a second random ID size. The WTRU selects a random ID size for an RA procedure based on a number of devices expected to respond to a query and a number of configured query occasions, and sends a paging message to one or more devices to be queried, indicating the selected random ID size. The WTRU may then receive, from the one or more devices, a first message including a device-selected random ID corresponding to the indication of the selected random ID size. The WTRU may further determine whether to increase the random ID size for a next configured query occasion.

Abstract: An example Wireless Transmit/Receive Unit (WTRU) comprising a processor is provided. The processor is configured to receive configuration information for a machine learning (ML) model. The processor is further configured to receive a request for activating an assessment mode associated with the ML model. The processor is further configured to collect measurements for the assessment mode. The processor is further configured to determine an error cause associated with the ML model based on the measurements. The processor is further configured to send one or more reports that include at least one of an indication of the error cause, an indication of a measurement related to the error cause, or an indication of a mitigation action for the error cause.

Abstract: A wireless transmit/receive unit (WTRU) may be configured to receive, from one or more responding ambient internet of things (AIOT) devices, an AIOT message and to report a device identity and data from the AIOT message of the one or more responding AIOT devices that are in an associated device list. The associated device list indicates AIOT devices that are associated with the WTRU. The WTRU may be configured to report additional information that includes information of a non-associated AIOT device, which is a responding AIOT device that is not in the associated device list. The additional information may be reported based on a change in a location of the WTRU or a quality of a transmission of the responding non-associated AIOT device. The additional information may comprise a device identity of the responding non-associated AIOT device and a signal strength measurement of the responding non-associated AIOT device.

Abstract: Procedures for ambient internet of things (AIoT) are disclosed herein. In an example, a wireless transmit/receive unit (WTRU) may receive a request message comprising a set of device identifications (IDs). The WTRU may send a report message indicating inventory parameters. The WTRU may receive an indication of an AIoT resource pool comprising information indicating time-frequency resources for transmission and reception of ambient Internet-of-things (AIoT) signals and linkage information for the resources. On a condition that the WTRU is configured to be a transmitting WTRU, the WTRU may transmit, to an AIoT device, the information indicating the inventory parameters, and an occasion synchronization message using a time-frequency resource for transmission of AIoT signals. The WTRU may receive, from the AIoT device, a message indicating a random identification (ID) for the AIoT device using linked resources.

Abstract: A WTRU may receive an AIoT inventory configuration information. The WTRU may receive an inventory trigger and determine, based at least on the trigger type and on the configuration, a first set of resources reserved for an unknown device and a second set of resources reserved for a known device. The WTRU may send an AIoT paging message including the inventory trigger type and information about the first set of resources and the second set of resources. The WTRU may receive, from a device, a first message using a first resource associated with the first set of resources, including a device ID. The WTRU may transmit a second message using a second resource also associated with the first set of resources, including the device ID received in the first message.

Abstract: A WTRU may receive configuration information for channel state information (CSI) feedback and a first CSI reference signal (CSI-RS) transmission. The processor is configured to determine a first subset of beams associated with the first CSI-RS transmission and a second subset of beams associated with the first CSI-RS transmission. The first subset of beams is associated with: a longer validity time than a validity time of the second subset of beams, a lower beam range than a beam range of the second subset of beams, and/or a smaller difference between beam indices associated with consecutive beam domain reporting instances than a difference between beam indices associated with the second subset of beams. The processor may send one or more reports that include an indication of the first and second subset of beams and first and second parameters associated with the first and second subset of beams, respectively.