Abstract: Reliability monitoring and indication may be provided for multicast and broadcast services (MBS). A WTRU may receive an MBS configuration for an INACTIVE state (e.g., suspend PTP and maintain PTM for split MRB). MBS configuration and suspend configuration may be associated with different areas (e.g. MBS area versus RAN area). Configurations may indicate reliability indication triggers (e.g., polling, event-based, periodic), a reliability metric configuration, and/or a reliability indication configuration. A WTRU (e.g., in INACTIVE) may receive an MBS transmission (e.g., on MRB(s)), receive an MCCH (e.g., with trigger(s) for reliability indication during MCCH modification period), determine reliability metric(s) associated with MBS TB reception, monitor reliability metric(s) during time interval(s) for MCCH modification period(s), select RA resources (e.g., per mapping between resources and reliability metric value/range), indicate a reliability metric (e.g.

Abstract: A method and apparatus for receiving a broadcast configuration indicating when a change in a RAN function termination occurs is provided, for example, by a timer value. The broadcast configuration may be received from a satellite, blimp or other moving transmitter. A dedicated configuration may also be received from the serving cell. The dedicated configuration may include a preamble, a transient configuration and an indication of a layer 2 behavior. If a WTRU detects a change in RAN function termination, the WTRU may suspend any uplink data transmissions, apply the transient configuration and transmit the preamble to a target cell. The WTRU may synchronize with the target cell and apply the layer 2 behavior.

Abstract: A wireless transmit receive unit (WTRU) may operate in a dual connectivity (DC) context. While in a RRC_INACTIVE state, the WTRU may receive a paging message from a first cell, which may be associated with a master cell group (MCG). The paging message may indicate that the WTRU is to respond to the paging message on another cell. Also, or alternatively, the paging message may indicate that data for the WTRU is available on an SCG bearer. The WTRU may select a second cell (e.g., a cell other than the first cell) from a secondary cell group (SCG) list, which may include one or more secondary cells. The WTRU may initiate a random access channel procedure with the second cell based on receiving the paging message from the first cell. The WTRU may receive data from the second cell via the SCG bearer while in the RRC_INACTIVE state.

Abstract: A wireless transmit/receive unit (WTRU) (e.g., a millimeter WTRU (mWTRU)) may receive a first control channel using a first antenna pattern. The WTRU may receive a second control channel using a second antenna pattern. The WTRU may demodulate and decode the first control channel. The WTRU may demodulate and decode the second control channel. The WTRU may determine, using at least one of: the decoded first control channel or the second control channel, beam scheduling information associated with the WTRU and whether the WTRU is scheduled for an mmW segment. The WTRU may form a receive beam using the determined beam scheduling information. The WTRU receive the second control channel using the receive beam. The WTRU determine, by demodulating and decoding the second control channel, dynamic per-TTI scheduling information related to a data channel associated with the second control channel.

Abstract: Methods, apparatus, systems, architectures, and interfaces for receiving a Multimedia Broadcast Multicast System (MBMS) service performed by a wireless transmit receive unit (WTRU) are provided. A method may include any of: receiving MBMS service configuration information including information indicating, for an MBMS service, an association between a transmission mode (TM) and a bandwidth part (BWP); receiving the MBMS service using a first BWP according to the received MBMS service configuration information; detecting a trigger for changing use of a BWP from using the first BWP to using a second BWP for receiving the MBMS service; determining a TM associated with the second BWP according to an association between a TM and the second BWP, according to an association indicated by the information included in the MBMS service configuration information; and receiving the specific MBMS service via the second BWP according to the TM associated with the second BWP.

Abstract: Systems, methods, and instrumentalities are disclosed herein for pre-processing for channel state information (CSI) compression in wireless system. A WTRU may receive configuration information that indicates a reference signal and a data processing model for channel state information (CSI) compression. The WTRU may determine CSI associated with a channel using the reference signal. The WTRU may determine a channel condition associated with pre-processing. The WTRU may select a pre-processing type from a plurality of pre-processing types based on the data processing model and the determined channel condition associated with pre-processing. The WTRU may pre-process the CSI associated with the channel based on the selected pre-processing type. The WTRU may generate compressed CSI by compressing the pre-processed CSI using the data processing model for CSI compression. The WTRU may send the compressed CSI to a network.

Abstract: Methods and apparatuses are described herein for monitoring radio links between wireless transmit/receive units (WTRUs) and determining of radio link failure, and may be used, among others, for New Radio (NR) vehicular communication (V2X); a mode whereby WTRUs can communicate with each other directly. A radio link between a WTRU and another WTRU may be monitored independently per ongoing unicast and/or multicast link, and radio link failure (RLF) may be determined as a function of the monitoring.

Abstract: A wireless transmit/receive unit (WTRU) may communicate in a non-terrestrial network (NTN) comprising a plurality of satellites. The WTRU may be preconfigured with a plurality of measurement configurations and a corresponding plurality of activation/deactivation criteria associated with the plurality of satellites. The activation/deactivation criteria includes at least activation timing information. The WTRU may activate and deactivate each of the plurality of measurement configurations over time in accordance with the activation/deactivation criteria. The WTRU may perform measurements on cell beams for satellites with active measurement configurations and report results based on the measurements to NTN.

Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products includes measuring Channel State Information (CSI) associated with at least one reference signal and determining a trained Artificial Intelligence (AI) model to generate at least a portion of a report that includes the CSI associated with the at least one reference signal. The report comprising the CSI associated with the at least one reference signal is transmitted.

Abstract: Systems, methods, and instrumentalities are disclosed herein for data-driven wireless transmit-receive unit (WTRU)-specific MIMO precoder Codebook, Quality-of-service (e.g., BER) may be improved, for example, using precoders for data transmissions where the precoder is selected from a codebook constructed from observed data. A wireless transmit/receive unit (WTRU) may (e.g., with a base station) construct a codebook based on observed data (e.g., time-varying channel conditions) that include precoders to use for data transmission. The WTRU may determine the codebook, for example, using a precoder prediction model (e.g., using machine learning and/or artificial intelligence).

Abstract: A wireless transmit/receive unit (WTRU) is configured to perform a method that comprises receiving a downlink control information (DCI) that schedules a first physical downlink shared channel (PDSCH) transmission and a second PDSCH transmission. The DCI comprises an indication of a beam identifier. The DCI indicates a time domain resource information for the first PDSCH transmission and the second PDSCH transmission. The method comprises receiving the first PDSCH transmission using a first beam. The first beam is a beam used for receiving a control channel transmission. The method comprises receiving the second PDSCH transmission using a second beam. The second beam is a beam of the beam identifier indicated in the DCI.

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 and apparatus for receiving a broadcast configuration indicating when a change in a RAN function termination occurs is provided, for example, by a timer value. The broadcast configuration may be received from a satellite, blimp or other moving transmitter. A dedicated configuration may also be received from the serving cell. The dedicated configuration may include a preamble, a transient configuration and an indication of a layer 2 behavior. If a WTRU detects a change in RAN function termination, the WTRU may suspend any uplink data transmissions, apply the transient configuration and transmit the preamble to a target cell. The WTRU may synchronize with the target cell and apply the layer 2 behavior.

Abstract: A WTRU may be configured to perform logical channel prioritization. A WTRU may receive an indication (e.g., a mapping) that indicates an association between a first HARQ process ID and a first HARQ processing type and between a second HARQ process ID and a second HARQ processing type. The WTRU may receive an indication (e.g., a mapping) that indicates an association between a first logical channel and the first HARQ processing type and between a second logical channel and the second HARQ processing type. The WTRU may receive an a HARQ process ID indication. The WTRU may determine a HARQ processing type associated with the HARQ process ID. The WTRU may determine a logical channel available for a transmission. The logical channel available to be used may be determined based on the HARQ processing type associated with the HARQ process ID. The WTRU may send the transmission.

Abstract: A wireless transmit/receive unit (WTRU) (e.g., a millimeter WTRU (mWTRU)) may receive a first control channel using a first antenna pattern. The WTRU may receive a second control channel using a second antenna pattern. The WTRU may demodulate and decode the first control channel. The WTRU may demodulate and decode the second control channel. The WTRU may determine, using at least one of: the decoded first control channel or the second control channel, beam scheduling information associated with the WTRU and whether the WTRU is scheduled for an mmW segment. The WTRU may form a receive beam using the determined beam scheduling information. The WTRU receive the second control channel using the receive beam. The WTRU determine, by demodulating and decoding the second control channel, dynamic per-TTI scheduling information related to a data channel associated with the second control channel.

Abstract: Methods and apparatuses are described herein for monitoring radio links between wireless transmit/receive units (WTRUs) and determining of radio link failure, and may be used, among others, for New Radio (NR) vehicular communication (V2X); a mode whereby WTRUs can communicate with each other directly. A radio link between a WTRU and another WTRU may be monitored independently per ongoing unicast and/or multicast link, and radio link failure (RLF) may be determined as a function of the monitoring.

Abstract: Light and/or Inactive state connectivity and/or autonomous mobility techniques are contemplated. A WTRU may, for example, have an inactive/idle mode, a light connected/loosely connected/Inactive mode and/or a connected/fully connected/Active mode. A WTRU in light connected mode may have a WTRU context stored in a RAN. A WTRU may perform an area monitoring procedure while in light connected state. A WTRU may engage in autonomous mobility during light connectivity. A WTRU may move within a logical area (e.g., a RAN paging area), perhaps without notifying the network. The WTRU may provide notice when it has moved outside a logical area (e.g., update RAN paging area). Mobility in light connected state may be network controlled (e.g., to enable handover when data transfer may be allowed and/or ongoing). A WTRU may be reachable during a light connectivity state. A WTRU may engage in autonomous mobility during light connectivity and/or an Inactive state.

Abstract: Reliability monitoring and indication may be provided for multicast and broadcast services (MBS). A WTRU may receive an MBS configuration for an INACTIVE state (e.g., suspend PTP and maintain PTM for split MRB). MBS configuration and suspend configuration may be associated with different areas (e.g. MBS area versus RAN area). Configurations may indicate reliability indication triggers (e.g., polling, event-based, periodic), a reliability metric configuration, and/or a reliability indication configuration. A WTRU (e.g., in INACTIVE) may receive an MBS transmission (e.g., on MRB(s)), receive an MCCH (e.g., with trigger(s) for reliability indication during MCCH modification period), determine reliability metric(s) associated with MBS TB reception, monitor reliability metric(s) during time interval(s) for MCCH modification period(s), select RA resources (e.g., per mapping between resources and reliability metric value/range), indicate a reliability metric (e.g.

Abstract: Methods for mobility operations based on lower-layer trigger conditions are provided herein. A method performed by a wireless transmit/receive unit (WTRU) may include receiving a configuration message from a network node associated with a serving cell. The message indicates a conditional reconfiguration which, when executed by the WTRU, causes the WTRU to perform a handover to a target cell for performing handover to a target cell. The message indicates a trigger condition which, when met, causes the WTRU to execute the conditional reconfiguration. The method may include sending a measurement report including one or more measurements associated with the target cell, receiving a message from the network node, and immediately executing the conditional reconfiguration and performing the handover to the target cell.

Abstract: A wireless transmit/receive unit (WTRU) may communicate in a non-terrestrial network (NTN) comprising a plurality of satellites. The WTRU may be preconfigured with a plurality of measurement configurations and a corresponding plurality of activation/deactivation criteria associated with the plurality of satellites. The activation/deactivation criteria includes at least activation timing information. The WTRU may activate and deactivate each of the plurality of measurement configurations over time in accordance with the activation/deactivation criteria. The WTRU may perform measurements on cell beams for satellites with active measurement configurations and report results based on the measurements to NTN.