Abstract: Multicast/Broadcast Service (MBS) for user equipments (UE) in Radio Resource Control (RRC) idle/inactive modes via signally of MBS frequency ranges and/or switching between frequency ranges as required. Bandwidth Part (BWP) operation for MBS in RRC IDLE and RRC INACTIVE states may be implemented using a dedicated MBS BWP or by sharing a frequency range with other operations. An MBS frequency range may be wider or narrower than an initial BWP used by a UE, for example. MBS frequency range configure may be achieved in a number of ways, such as via Control Resource Set (CORESET), search space, and/or PDCCH monitoring occasions pattern settings for MBS in RRC idle/inactive. Downlink scheduling without dynamic grant for MBS in RRC idle/inactive may include configured scheduling and/or semi-persistent scheduling. Downlink repetition for MBS in RRC idle/inactive may include PDSCH repetition and/or PDCCH repetition.

Abstract: Systems, methods, and instrumentalities may be configured for two-level reconfigurable intelligent surface (RIS) channel state information (CSI). A wireless transmit/receive unit may receive a first set of symbols. The WTRU may determine a first RIS CSI based on the first set of symbols, a first RIS CSI estimation matrix, and a first RIS CSI quantization format. The first RIS CSI quantization format may use a uniform distribution of phase quantization points. The WTRU may transmit the first RIS CSI. The WTRU may receive a second set of symbols. The WTRU may determine a second RIS CSI based on the second set of symbols, a second RIS CSI estimation matrix, and a second RIS CSI quantization format. The second RIS CSI quantization format may use a non-uniform distribution of phase quantization points. The WTRU may transmit the second RIS CSI.

Abstract: Methods, systems, and devices may assist in power saving in new radio. For example, enable power savings during the connected mode discontinuous reception cycle of the RRC_CONNECTED state of a user equipment.

Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products for transmission configuration indication, TCI, management in near-field, NF, are described. A wireless transmit-receive unit, WTRU, may be configured with multiple TCI sets. Each TCI set may consist of TCI states of NF beams and a TCI state of far-field, FF, beam. The WTRU may determine and may report a preferred TCI set based on measurement on a source reference signal of a TCI state of FF beam. The WTRU may be indicated with an active TCI set and a semi-active TCI set. The active/semi-active status may be switched via downlink control information. The switching delay from semi-active to active status is shorter than from de-active to active status.

Abstract: In an embodiment, a WTRU is configured to apply, to data symbols, a transform-spreading function that spreads the data symbols in a frequency domain, to form a first beam, and to transmit the transform-spread data symbols in the first beam. For example, an embodiment for improving reliability of signal detection over an impaired link includes implementing a Generalized Space-Frequency Block Coding (GSFBC) procedure. The impairment can be caused, e.g., by aging of the channel-state information, imperfections in the channel-state acquisition or reporting procedures, and/or beam-squint effects in multi-antenna systems. And an embodiment can include using hybrid beamforming and a GSFBC procedure to improve reliability of detection of the signal in the presence of beam squint and/or beam misalignments.

Abstract: Methods, systems, and apparatuses may assist scheduling for broadcast and groupcast on new radio Uu interface. In an example, there may be broadcast and groupcast transmission scheduling mechanism with: group based scheduling, UE specific based scheduling, or sub-group based scheduling. In another example, there may be a serving cell configuration for broadcast and groupcast transmission with dedicated cell for broadcast and groupcast, or broadcast and groupcast cell which is shared with the cell for unicast. In another example, there may be downlink control related configuration for broadcast and groupcast transmission with details of the BWP configuration, the CORESET configuration, or the search space configuration.

Abstract: A method and corresponding device for a user equipment (UE). The method includes: receiving, from a first base station (first gNB), a first communications configuration via Radio Resource Control (RRC) signalling; receiving, from the first gNB, a group common Physical Downlink Control Channel (GC-PDCCH) for a plurality of UEs, the plurality of UEs including the UE, where the GC-PDCCH comprises a time domain resource assignment (TDRA) field containing TDRA information and a frequency domain resource alignment (FDRA) field containing FDRA information, and where the first and second fields are scrambled with a specific radio-network temporary identifier (RNTI) configured by a higher layer parameter; based on a PDSCH-TimeDomainAllocationList having been provided to the UE, applying PDSCH-TimeDomainAllocationList for the TDRA; and communicating with the first gNB using the first communications configuration, the TDRA and the FDRA.

Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products for near-field uplink multiple input multiple output. A wireless transmit-receive unit (WTRU) may determine one or more angles of reception of one or more reference signals (RS) transmitted by a network node in direction of the WTRU. In reply, the WTRU may transmit an indicated subset of sounding reference signals (SRS) in the direction of the network node antenna array using a corresponding set of uplink transmission beams that correspond to a beam separation. The network node may determine if the beam separation that the WTRU used was proper. Hence, the WTRU may receive an indication from the network to change, the beam separation. Based on the beam separation indication, the WTRU may change the uplink transmission beams in order to increase or decrease the beam separation, for a subsequent transmission of a subsequently indicated subset of SRS.

Abstract: Described herein are systems, methods, and instrumentalities associated with c under near field conditions. Channel station information (CSI) reporting under these conditions may be performed based on partial CSIs associated with respective parts of an antenna array. CSI reference signals (CSI-RSs) for the CSI reporting may be bundled and an indication may be provided to a wireless transmit/receive unit (WTRU) to indicate whether the WTRU is under the near field conditions.

Abstract: In an embodiment, a method implemented in a WTRU comprises receiving a first message comprising first information indicating a configuration of a set of precoders, a set of correction factors, association between each precoder of the set of precoders with at least one correction factor from the set of correction factors, and at least one RS; receiving at least one reference signal; determining a first precoder based on at least one measurement on the at least one RS; determining a subset of correction factors associated with the first precoder; determining a correction factor from the subset of correction factors; determining a second precoder based on the first precoder and the determined correction factor; and transmitting a second message comprising second information indicating the second precoder.

Abstract: Methods and devices are disclosed for a wireless transmit receive unit (WTRU). The WTRU is configured with information including a downlink (DL) burst format table defining a plurality of DL burst formats. A DL burst format includes a time domain resource allocation (TDRA) of one or more physical downlink shared channels (PDSCHs), one or more sounding reference signal (SRS) resources and/or channel state information reference signal (CSI-RS) resources associated with the DL burst format. The WTRU may receive downlink control information (DCI) with a field indicating a select DL burst format from the DL burst format table that defines time domain positions of all signals associated with the select DL burst to the WTRU. The WTRU may then transmit SRS(s) and receive CSI-RS(s), if any, and one or more PDSCHs using the TDRA associated with the indicated select DL burst format. Additional embodiments are disclosed.

Abstract: For a wireless transmit-receive unit (WTRU) moving between near field and far field (NF/FF) regions of a cell, the planar wave approximation used in the FF region may not be adapted to the NF region. Therefore, the WTRU may determine a transmission precoder type of a set of transmission precoder types, and at least one downlink (DL) reference signal (RS). The WTRU may perform one or more measurements based on the DL RS. The WTRU may determine a transmission precoder type from the set of transmission precoder types based on the one or more measurements meeting the associated conditions. The WTRU may transmit a report to the network, the report comprising an indication of the determined transmission precoder type, to be used by the network for DL transmissions to the WTRU, for improved reception of these transmissions by the WTRU in the region where the WTRU is located.

Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products for reporting of precoders, in particular hybrid precoders for near-field and far-field operation. A wireless transmit/receive unit measures one or more downlink, DL, reference signals, RSs, to obtain a measurement result, determines, based on the measurement result, at least a first set of vectors, determines, based on the measurement result, at least a second set of vectors having complex valued elements, across which phase progression is non-linear, determines precoder information comprising at least the first set of vectors and the second set of vectors, and transmits, to a transmission reception point, information indicating the precoder information.

Abstract: Methods, systems, and devices may assist in power saving in new radio. For example, enable power savings during the connected mode discontinuous reception cycle of the RRC_CONNECTED state of a user equipment.

Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products for beam selection. A wireless transmit/receive unit, WTRU, measures received power of a received first downlink, DL, reference signal, RS, received from a network, and, upon determination that a value based on the measured received power satisfies at least one first criterion, determines a value range to which the value belongs, determines a set of second DL RS associated with the determined value range, measures the determined set of second DL RS to obtain a corresponding set of first measurement results, selects a DL RS from the set of second DL RS based on the set of first measurement results, and transmits, to the network, information indicative of at least one of the selected DL RS and the corresponding first measurement result.

Abstract: Beam management for the downlink can be based on user equipment (UE) measurement of downlink (DL) reference signal (RS) and UE reporting. An alternative approach that may reduce overall RS overhead and latency is BM for the downlink based on uplink (UL) RS. With this approach, the network measures UL RS transmissions on multiple beams and uses these measurements for managing beams for the DL. Disclosed herein are various problems and enhancements related to UL RS based DL BM, in particular beam failure detection and recovery.

Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products for near-field (NF) region detection. It may be beneficial if a wireless transmit-receive unit (WTRU) and the network are aware of whether the WTRU is within a NF region or not. A WTRU may be configured with a primary (P-RS) and a secondary (S-RS) set of resources. The WTRU performs measurements on each pair of associated RS resources selected from the P-RS and S-RS resource sets. Based on measurement results, the WTRU selects one or more RS groups that include a S-RS and an associated P-RS, and determines whether a pre-defined measurement condition is fulfilled. Based on the determined state for the selected RS groups, the WTRU determines to report an NF detection to the network, such as to enable location division multiple access and beam focusing which may enable enhanced spectrum efficiency.

Abstract: A user equipment (UE) in a wireless network may receive Downlink Control Information (DCI) that schedules Physical Uplink Shared Channel (PUSCH) for non-codebook-based and/or codebook-based PUSCH operation. The UE may be configured with a Sounding Reference Signal (SRS) resource set for each codebook-based operation and non-codebook-based operation. The UE may transmit using a codebook base operation in a first set of PUSCH occasions and transmit using a non-codebook-based operation in a second set of PUSCH occasions. The DCI may include multiple SRS Resource Indicator (SRI) fields pertaining to different sets of PUSCH occasions. Similarly, DCI may include information pertaining to a number of layers for precoding for a set of PUSCH occasions.

Abstract: Multicast/Broadcast Service (MBS) for user equipments (UE) in Radio Resource Control (RRC) idle/inactive modes via signally of MBS frequency ranges and/or switching between frequency ranges as required. Bandwidth Part (BWP) operation for MBS in RRC IDLE and RRC INACTIVE states may be implemented using a dedicated MBS BWP or by sharing a frequency range with other operations. An MBS frequency range may be wider or narrower than an initial BWP used by a UE, for example. MBS frequency range configure may be achieved in a number of ways, such as via Control Resource Set (CORESET), search space, and/or PDCCH monitoring occasions pattern settings for MBS in RRC idle/inactive. Downlink scheduling without dynamic grant for MBS in RRC idle/inactive may include configured scheduling and/or semi-persistent scheduling. Downlink repetition for MBS in RRC idle/inactive may include PDSCH repetition and/or PDCCH repetition.

Abstract: Configured uplink and/or downlink grants may be managed by providing configuration parameters through higher layer signaling and then activating and/or deactivating use of provided configurations through group common PDCCH signalling that is transmitted to multiple UEs simultaneously. Similarly, enhancements to group common PDCCH signalling may be used to achieve dynamic scheduling.