Methods and devices for encoding and decoding 3D point clouds. A learned deep entropy model over octrees is proposed for lossless compression of 3D point cloud data. The self-supervised compression consists of an adaptive entropy coder which operates on a tree-structured conditional entropy model. The information from the local neighborhood as well as the global topology is utilized from the octree structure. In an embodiment, the features from the parent level is up-sampled to bring them to the resolution of the current level before further feature aggregation. For processing dense massive point clouds and to facilitate parallel processing, a block-based compression scheme is proposed to reduce the required computation and time resources.
Procedures, methods, architectures, apparatuses, systems, devices, and computer program products for accurate cellular channel metric prediction using machine. In an embodiment, an apparatus may be configured to implement a prediction process repeated until the WTRU obtains a stop indicator, the prediction process comprising: obtaining past radio measurement data and past local sensors data of a sliding time window; training a configured ML model using the past radio measurement data and past local sensors data; predicting a channel quality metric using the ML model and current local sensors data; sending, to a network node, the predicted channel quality metric; and moving forward the sliding window starting time at a determined time instance; repeating the prediction process until the WTRU obtains a stop indicator.
Joint denoising and compression of channel state information (CSI) feedback may be performed. An example device may include a processor configured to perform one or more actions. The device may receive configuration information that indicates a latent mode of operation and an encoder model. The device may receive CSI reference signals from a network node. The device may generate an estimated channel matrix based on the CSI reference signals. The device may generate a latent representation of the estimated channel matrix based on the latent mode of operation and the encoder model. The device may send the latent representation of the estimated channel matrix to the network node.
A WTRU may be configured to receive configuration information that comprises a sidelink (SL) secondary transmission configuration indication (S-TCI) mode indicator set to enabled. The WTRU may receive a first stage SL control information (SCI) that indicates one or more SL primary transmission configuration indications (SL P-TCIs). The WTRU may determine whether to disable the SL S-TCI mode indicator for a second stage SCI based on channel uncertainty. The WTRU may receive the second stage SCI. The WTRU, in response to the SL S-TCI indicator remaining enabled for the second stage SCI, may determine one or more SL S-TCIs using the second stage SCI. The WTRU may receive a physical sidelink shared channel (PSSCH) transmission using the one or more SL P-TCIs and/or the one or more SL S-TCIs based on the SL S-TCI mode indicator being enabled for the second stage SCI.
e.g.,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.
H04B 7/0408 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
H04B 7/0456 - Selection of precoding matrices or codebooks, e.g. using matrices for antenna weighting
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H04L 1/06 - Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
H04L 5/00 - Arrangements affording multiple use of the transmission path
6.
METHODS AND SYSTEMS OF SIDELINK OPERATIONS FOR BEAM-BASED MODE 2 HARQ IN SHARED SPECTRUM
Described are systems and methods for sidelink (SL) hybrid automatic repeat request (HARQ) feedback schemes. A wireless transmit/receive unit (WTRU) may receive information that indicates a plurality of SL transmission configuration indications (TCIs), wherein the SL TCIs include at least a SL primary TCI (P-TCI) and a SL secondary TCI (S-TCI), and information that indicates a plurality of hybrid automatic repeat request (HARQ) configurations. The WTRU may determine a channel uncertainty and determine, based on a comparison of the channel uncertainty to at least one threshold value, a combination of a set of SL TCIs and a HARQ configuration to use for communicating via a sidelink feedback channel. The WTRU may send a transmission, via a sidelink feedback channel, using the determined set of SL TCIs and using the determined HARQ configuration.
A method performed by a wireless transmit/receive unit (WTRU) for secure policy provisioning includes receiving a network message including new policy information, a first policy message authentication code (MAC) generated by a network (P-MAC-N), and a policy protection counter (PPC). The WTRU generates a second policy MAC using a security key shared with the network, the new policy information, and the PPC, and verifies the integrity of the network message by determining that the P-MAC-N matches the second policy MAC. After the verification, the WTRU updates the previous policy information of the WTRU using the new policy information based on the match of the P-MAC-N and the second policy MAC.
H04L 9/32 - Arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system
H04W 48/18 - Selecting a network or a communication service
H04W 8/02 - Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
H04W 12/04 - Key management, e.g. using generic bootstrapping architecture [GBA]
8.
METHODS AND APPARATUS FOR PRIVACY HANDLING IN ProSe LAYER-2 UE-TO-NETWORK RELAY OPERATIONS
A relay Wireless Transmit Receive Unit (WTRU) is configured to communicate with a network and a remote WTRU and receives a link identifier update (LIU) request message including a new remote WTRU L2 ID and a new MSB of a new security identifier (ID). The relay WTRU generates a new relay WTRU L2 ID and a new LSB of the new security ID. The relay WTRU transmits to the network a request for a new remote WTRU ID and receives the new remote WTRU ID which is associated with the new L2 IDs. The relay WTRU transmits the new remote WTRU ID to the remote WTRU and a LIU response message. The relay WTRU receives an acknowledgement message. Thereafter, the new Remote WTRU ID is used for communication between the remote WTRU, the relay WTRU and the gNB.
Procedures, methods, architectures, apparatuses, systems, devices, and computer program products directed to artificial intelligence-specific idle/inactive/connected mode measurements procedure. In an embodiment, a method implemented by a wireless transmit receive unit (WTRU) includes receiving, from a network component, a first message comprising aggregation related information; registering with the network component, indicating capability/availability on multiple WTRUs aggregation; receiving, from the network component a second message comprising registration accept information for aggregation; and establishing sidelink communication with the multiple WTRUs.
Methods and apparatus for connection setup and/or resume in a wireless network, e.g., using different device identity sets depending on network and/or device conditions, are provided. One method may include receiving first information indicating a plurality of WTRU identities and second information indicating one or more associations between each of the plurality of identities and at least one condition. The method may include determining one or more of the current WTRU conditions, the current network conditions, the predicted WTRU conditions, and the predicted network conditions. Based on the associations, the method may include determining a WTRU identity that is associated with one or more of: the determined current conditions at the WTRU, the determined predicted conditions at the WTRU, the determined current conditions at the network, and the determined predicted conditions at the network. The determining of the WTRU identity may be performed while the WTRU is operating in a power saving state such as IDLE or INACTIVE state. The method may then include sending, to the network, an indication of the determined WTRU identity. The sending of the indication of the determined WTRU identity may be performed upon transitioning from the power saving state to a non-power saving state such as a CONNECTED state.
Procedures, methods, architectures, apparatuses, systems, devices, and computer program products for measurements in wireless systems. A Wireless Transfer/Receive Unit, WTRU, receives information indicative of an uplink, UL, subband, SB, receives an indication to perform a measurement on a first set of resource blocks, RBs, and a first set of symbols, wherein the first set of symbols include a first one or more subband non-overlapping full duplex, SBFD, symbol, on condition that the first set of RBs includes both RBs in the UL SB and RBs outside the UL SB, determines a first measurement for the RBs in the first set of RBs that are in the UL SB and at least one additional measurement for at least one RB in the first set of RBs that are outside the UL SB, and transmits a message including the first measurement and the at least one additional measurement.
Procedures, methods, architectures, apparatuses, systems, devices, and computer program products for utilizing flow control from a relay wireless transmit/receive unit (WTRU) in multipath operation which includes sidelink communication with a remote WTRU. In a representative example, a relay WTRU may provide flow control information to a remote WTRU. The flow control information may be associated with remote WTRU actions. The remote WTRU may perform one or more actions based on the reception of the flow control information from the relay WTRU.
A wireless transmit/receive node (WTRU) may be configured to receive an announcement message from another WTRU; determine, based on the announcement message, a list of source WTRUs; receive a discovery message from a source WTRU; compare the source WTRU to the list of source WTRUs; and determine, based on the comparison, whether to forward the discovery message.
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.
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
Described herein are systems, methods and instrumentalities associated with power saving in a wireless communication system. A wireless transmit/receive unit (WTRU) in the system may receive configuration information regarding a discontinuous reception (DRX) mode and a low-power wake-up signal (WUS). The WTRU may enter the DRX mode and monitor for the low-power WUS. The WTRU may determine whether to wake up during an on duration of the DRX mode based on whether the low-power WUS is received or based on information included in the low-power WUS.
Transmission on a physical uplink control channel (PUCCH) and/or a physical uplink shared channel (PUSCH) may occur via one or more panels of a wireless transmit/receive unit (WTRU) during the same time slot. The WTRU may be configured to transmit different portions (e.g., Part 1, Part 2) of a Channel State Information (CSI) report via different panels of the WTRU. The WTRU may be configured to transmit Part 1 of the CSI report via a single panel of the WTRU. And the WTRU may be configured to transmit Part 2 of the CSI report via multiple panels of the WTRU in a simultaneous transmission multiple panel (STxMP) mode of operation. The WTRU may be configured to multiplex Part 2 contents over the multiple panels.
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
17.
POWER CONTROL OVER MULTI-PANEL SIMULTANEOUS TRANSMISSIONS IN WIRELESS SYSTEMS
A wireless transmit/receive unit (WTRU) may receive a first set of simultaneous uplink (UL) grants for transmitting first simultaneous transmissions using a first set of two or more beams. The WTRU may transmit a first power headroom report (PHR) including a first power sharing indication. The first power sharing indication may indicate a first power sharing status for the first simultaneous transmissions. The WTRU may receive a second set of simultaneous UL grants for transmitting second simultaneous transmissions. The second simultaneous transmissions may be transmitted using a second set of two or more beams. The WTRU may determine a second power sharing status for the second simultaneous transmissions. The WTRU may transmit a second PHR when the determined second power sharing status is different than the first power sharing status.
H04W 52/34 - TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
H04W 52/36 - Transmission power control [TPC] using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
H04W 52/42 - TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
18.
LATENCY AND COVERAGE ENHANCEMENT FOR SUBBAND NON-OVERLAPPING FULL DUPLEX
A wireless transmit/receive unit (WTRU) may receive subband non-overlapping full duplex (SBFD) configuration information. The SBFD configuration information may be associated with subbands for uplink transmission and subbands for downlink reception. The WTRU may receive scheduling information associated with physical uplink shared channel (PUSCH) transmissions. The scheduling information may comprise a first frequency domain resource allocation (FDRA). The WTRU may transmit a first PUSCH transmission using a first frequency resource. The WTRU may determine that at least a second PUSCH transmission is to be sent using at least one OFDM symbol. The WTRU may determine that the first frequency resource overlaps. The WTRU may receive one or more of a second FDRA or a frequency offset for the second PUSCH transmission. The WTRU may determine a second frequency resource for transmitting the second PUSCH transmission. The WTRU may transmit the second PUSCH transmission using the second frequency resource.
A wireless transmit/receiver unit (WTRU) is configured with PC5 Signaling by a ProSe layer and for ranging and sidelink (SL) positioning. The WTRU is further configured to initiate a connection setup for SL positioning with a relay WTRU when the target WTRU is out of coverage. The WTRU locates potential relay WTRUs having a known location within a network. The WTRU connects to one relay WTRU via SL positioning and receives from the relay WTRU a deferred mobile terminated location request or a periodic location request for target WTRU location information. The WTRU may further receive a location request from an Access and Mobility Management Function (AMF) or a Location Management Function (LMF) in a network, wherein the AMF/ LMF sends the location request to the target WTRU via the relay WTRU.
H04W 64/00 - Locating users or terminals for network management purposes, e.g. mobility management
G01S 5/00 - Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations
A wireless transmit/receive unit (WTRU) comprising a processor configured to receive configuration information comprising information on one or more artificial intelligence/machine language (AIML) lifecycle management (LCM) stages associated with an AIML model and information on a local LCM stage reporting identification (ID) granularity and a global LCM stage reporting ID granularity for reporting on the one or more AIML LCM stages, transmit feedback for a first AIML LCM stage using the local LCM stage reporting ID granularity, receive an indication to switch to the global LCM stage reporting ID granularity, transmit an LCM stage reporting ID granularity switch confirmation message, and transmit feedback for a second AIML LCM stage using the global LCM stage reporting ID granularity.
H04L 41/16 - Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks using machine learning or artificial intelligence
21.
METHODS, APPARATUS, AND SYSTEMS FOR POWER STATUS REPORTING AND POWER OPTIMIZED SERVICE CONFIGURATION
A network device may receive a message that indicates an identifier of a wireless transmit/receive unit (WTRU) and/or one or more parameters associated with a power status of the WTRU. The network device may generate a power reporting policy, for example, based on the received message. The power reporting policy may include one or more triggers associated with sending a power status report. The network device may send the power reporting policy to the WTRU. The network device may receive the power status report from the WTRU in accordance with the power reporting policy. The power status report may include one or more battery characteristics associated with the WTRU. The network device may update one or more policy charging and control (PCC) rules based on the power status report.
A wireless transmit/receive unit (WTRU) may receive a downlink (DL) reference signal on a DL channel. The WTRU may measure a Doppler related parameter value based on the DL reference signal. The WTRU may estimate one or more time domain channel properties (TDCPs) of the DL channel associated with one or more delays. The one or more TDCPs may be based on the measured Doppler related parameter value. The WTRU may determine a confidence level for the one or more estimated TDCPs based on one or more of channel conditions, WTRU architecture, receive antenna configuration information, channel state information (CSI) reporting configuration, and/ or system configuration. The WTRU may send a report that indicates the one or more estimated TDCPs and the confidence level for the one or more estimated TDCPs.
A wireless transmit receive unit (WTRU) is configured to receive configuration information for reporting Global Navigation Satellite System (GNSS) assistance information (Al). The configuration information comprises a reporting trigger threshold that is at least one of a distance threshold or a time offset threshold. The WTRU determines that the reporting trigger threshold is exceeded and reports GNSS Al. The GNSS Al comprises at least one of a GNSS validity duration or a GNSS acquisition time. The GNSS validity duration comprises an indication of a time duration associated with a validity of a GNSS acquisition, an indication of a time duration associated with expiration of the GNSS acquisition, or a WTRU location associated with the GNSS acquisition. The GNSS acquisition time comprises a time to acquire a GNSS position.
G01S 5/00 - Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations
G01S 19/39 - Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
G01S 19/14 - Receivers specially adapted for specific applications
A WTRU may receive configuration information associated with neighbor cells, including indications of a first type of measurement, a second type of measurement, and/or a reporting condition associated with the first type of measurement. The first and second types of measurement may be L1 measurements. The WTRU may perform a measurement associated with the first type of measurement on a neighbor cell. The WTRU may determine that the reporting condition is satisfied for the neighbor cell based on the measurement. The WTRU may transmit a request to activate the second type of measurement for the neighbor cell. The WTRU may receive an activation command for reporting a measurement associated with the second type on the neighbor cell. The WTRU may perform the measurement associated with the second type on the neighbor cell, and may transmit a report indicating one or more measurement values associated with the second type of measurement.
A wireless transmit/receive unit (WTRU) may receive configuration information. The WTRU may transmit a plurality of codeblock groups (CBGs) corresponding to one or more protocol data units (PDUs) of a first PDU set. The WTRU may receive feedback indicating that at least one of the plurality of CBGs of the first PDU set was not successfully received. The WTRU may determine that dynamic PUSCH resource grants are later in time than a second PUSCH transmission occasion. The WTRU may determine whether to retransmit the at least one of the plurality of CBGs of the first PDU set using the dynamic PUSCH resource grants or using the second PUSCH transmission occasion. The determination may be based on an amount of time remaining in a delay budget for the first PDU set. The WTRU may retransmit the at least one of the plurality of CBGs of the first PDU set.
A wireless transmit/receive unit (WTRU) may receive a configuration. The configuration may include at least one of an artificial intelligence machine learning (AI/ML) operation type association to a traffic category. The traffic category may correspond to an AI/ML operation traffic category and/or at least one parameter. The WTRU may determine an AI/ML service operation type, for example to be operated by an AI/ML application client on the WTRU. The WTRU may transmit, for example to a network element, a request for analytics and/or a prediction related to the AI/ML service operation type. The request may include an indication of the traffic category and/or the at least one parameter. The WTRU may receive the analytics and/or prediction related to the AI/ML service operation type, for example in response to the request.
A device, such as a wireless transmit/receive unit, may receive a first candidate cell information and/or a second candidate cell information. The first candidate cell information may indicate a first candidate cell and/or a first synchronization configuration and the second candidate cell information may indicate a second candidate cell and/or a second synchronization configuration. The WTRU may receive a first measurement configuration and/or a second measurement configuration. The WTRU may select a measurement configuration associated with the first candidate cell based on whether the first synchronization configuration indicates that the first candidate cell is associated with a random access channel (RACH) procedure or a RACH-less procedure. The WTRU may perform a measurement of the first candidate cell based on the selected measurement configuration. The WTRU may transmit a measurement report indicating the measurement of the first candidate cell.
In an embodiment, a method implemented in a wireless transmit receive unit, WTRU, comprises: receiving in one or more first messages from a network, information on predictive data configuration indicating one or more triggering conditions for performing connection to the network and indicating one or more data traffic prediction parameters; determining a data traffic prediction level while in idle/inactive state based on the one or more data traffic prediction parameters; in response to the determination of the data traffic prediction level fulfilling at least one of the one or more triggering conditions, transmitting, to the network, a second message comprising a request for connection and at least one cause value for the connection; receiving, from the network, a third message comprising a response to the request for connection; and initiating a transition to connected state.
Described herein are systems, methods, and instrumentalities associated with short control signal transmissions. A wireless transmit/receive unit (WTRU) as described herein may receive configuration information from a network device, wherein the configuration information may indicate first short control signal transmission (SCSt) configuration information. The WTRU may determine whether a signal to be transmitted satisfies a condition, wherein the condition may be associated with at least a transmission priority associated with the signal. Based on a determination that the signal satisfies the condition, the WTRU may transmit the signal based on the first SCSt configuration information indicated by the configuration information. The WTRU may select the first SCSt configuration information over second SCSt configuration information also received by the WTRU. The WTRU may make the selection based on one or more characteristics of the signal to be transmitted.
H04W 74/00 - Wireless channel access, e.g. scheduled or random access
H04L 5/00 - Arrangements affording multiple use of the transmission path
H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
30.
METHODS, ARCHITECTURES, APPARATUSES AND SYSTEMS DIRECTED TO DISCONTINUOUS RECEPTION AND LOGICAL CHANNEL PRIORITIZATION BASED ON L1-INDICATED HARQ STATE INFORMATION
In an embodiment, a method implemented in a wireless transmit/receive unit is described herein. The method may include receiving configuration information indicating (1) a downlink control information (DCI)-based indication of hybrid automatic repeat request (HARQ) state and (2) a first HARQ state associated with a HARQ process. The method may include performing a first discontinuous reception (DRX) operation based on the first HARQ state. The method may include receiving a DCI and determining that the DCI may indicate a second HARQ state associated with the HARQ process, based on the configuration information indicating that DCI-based indication of HARQ state may be enabled. The method may include performing a second DRX operation associated with the HARQ process based on the second HARQ state.
An embodiment includes a WTRU configured to receive configuration information indicating a trigger condition for measurements to be performed while operating in a first activity level, receive an indication to transition from operating in a second activity level to operating in the first activity level, perform measurements, while operating in the first activity level, responsive to a predicted fulfillment of the trigger condition, and transmit a report based on the measurements responsive to transitioning to the second activity level. For example, a WTRU can be configured to perform UL/DL traffic prediction and early measurements while in an IDLE/INACTIVE state, and to transmit a report based on the measurements responsive to transitioning to a CONNECTED state. The report may include measurements performed and/or indicate whether a CA/DC configuration would allow the WTRU to fulfill UL/DL traffic demands. The WTRU also may refrain from performing the measurements and/or including the measurement report.
A wireless transmit/receive unit (WTRU) may be configured to receive configuration information, that may comprise an indication of a stop time of a first cell and a start time of a second cell. The WTRU may be configured to perform radio link monitoring (RLM) measurements on the first cell. The WTRU may be configured to determine that the first cell has stopped based on the received indication of a stop time of the first cell. The WTRU may be configured to stop the RLM measurements on the first cell. The WTRU may be configured to initiate a radio resource control (RRC) connection re-establishment procedure on the second cell in response to the determination that the first cell has stopped. The first cell may be a current cell and the second cell may be a neighbor cell or target cell. The configuration information may further comprise a time offset value.
Systems, methods, and instrumentalities are disclosed herein associated with robust handover (HO) via sidelink (SL) relays. A remote wireless transmit/receive unit (WTRU) may be used in HO scenario from a source network node (e.g., gNB) to a neighbor or target network node (e.g., gNB). For example, the HO procedure may include a remote WTRU determining whether condition(s) (e.g., measurement reporting condition or sidelink connection establishment condition (e.g., event condition)) are satisfied. The remote WTRU may establish a sidelink connection with a relay candidate, for example, during the HO procedure.
Procedures, methods, architectures, apparatuses, systems, devices, and computer program products for cell handover of a wireless transmit-receive unit, WTRU, and radio resource control, RRC, configuration overhead and/or data retransmission are reduced. An RRC reconfiguration data structure is rendered modular by splitting the data structure into configuration parts, e.g., CU, DU and cell-specific parts. One configuration can be provided per CU, one configuration per DU, and one configuration per cell. According to an embodiment, one candidate cell group configuration is provided for each potential SCG and for each potential MCG. Any part of the configuration may be provided with an ID. By using common building blocks and IDs, the WTRU may determine, based on the IDs of the source and target cell configurations, what the delta configuration is, and apply any necessary configurations and associated actions.
Systems, methods, and instrumentalities are described herein for beam failure detection and recovery for layer 1 (L1) mobility. A wireless transmit/receive unit (WTRU) may be configured to receive configuration information and an indication of at least one condition to perform beam failure recovery (BFR) via the a L1/L2 mobility (LTM) candidate cell. The WTRU may detect a serving cell beam failure. Based on the detection of the serving cell beam failure, the WTRU may determine whether at least one condition to perform BFR via the LTM candidate cell is fulfilled. The WTRU may perform BFR via the LTM candidate cell based on the at least one condition being fulfilled.
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
Systems, methods, and instrumentalities may be configured for supporting relay node assisted positioning. A first wireless transmit/receive unit (WTRU) may receive, from a network node, configuration information indicating a Sounding Reference Signal for positioning (SRSp) configuration. The SRSp configuration may be associated with a second WTRU, a reference Timing Advance (TA) value associated with the first WTRU, a first threshold value, and a second threshold value. The first WTRU may receive, from the second WTRU, a first RSRP measurement. The first WTRU may determine a first TA value associated with the second WTRU, wherein the determination of the first TA value is based on the first RSRP measurement, the reference TA value, and a measurement associated with the network node. The first WTRU may transmit to the second WTRU, the SRSp configuration and the first TA value for the second WTRU.
Disclosed herein are one or more systems, methods, and/or devices for the estimation of the channel state information (CSI) using generative models. In some cases, there may also be simultaneously estimating a compressed representation of the CSI. In some cases, approaches and techniques may reduce the required reference symbols (RS) for the channel estimation process.
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
Methods, apparatuses, and procedures for timeline management on transmission configuration indications in wireless communications are disclosed. For example, a method implemented by a wireless transmit/receive unit (WTRU) includes receiving configuration information indicating a set of transmission configuration indicator (TCI) states, a beam application time (BAT), and a BAT offset; receiving downlink control information (DCI) indicating scheduling of a downlink data transmission and a TCI state from the set of TCI states; and transmitting a transmission using the indicated TCI state, and the transmission is transmitted on at least a time offset associated with the BAT and/or the BAT offset after transmitting a hybrid automatic repeat request (HARQ) feedback associated with the downlink data transmission.
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H04L 5/00 - Arrangements affording multiple use of the transmission path
39.
EFFICIENT LOW-LATENCY CSI ACQUISITION IN A DOWNLINK BURST
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.
A wireless transmit/receive unit (WTRU) may be comprised of a processor and memory. The WTRU may receive a configuration from a network that configures the WTRU to perform an inverse deep learning model. The WTRU may receive a plurality of reference signals from the network. The WTRU may determine a number of MPCs using the inverse deep learning model and based on the plurality of reference signals. The WTRU may determine an angle of arrival (AoA), an angle of departure (AoD), and a gain associated with each MPC of the number of MPCs using the inverse deep learning model and based on the plurality of reference signals. The WTRU may send an indication of the number of MPCs and the AoA, the AoD, and the gain associated with each MPC of the number of MPCs to the network.
Procedures, methods, architectures, apparatuses, systems, devices, and computer program products implemented by a Wireless Transmit/Receive Unit (WTRU) comprises: receiving first information indicating a network coverage ensemble area; receiving second information indicating a set of candidate beams and a configuration associated with the set of candidate beams; performing first local sensor measurements; selecting a subset of candidate beams from the set of candidate beams based on the first local sensor measurements and the network coverage ensemble area, responsive to a detection of a beam failure; performing, for each candidate beams, second local sensor measurements and radio measurements; selecting a candidate beam based on criteria associated with the second local sensor measurements and with the radio measurements; determining at least one random access channel (RACH) parameter for the selected candidate beam; and sending RACH transmission on the selected candidate beam using the at least one RACH parameter.
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
A WTRU may perform a proactive conditional handover (CHO). A WTRU may provide assistance information to a network (e.g., position, location, panels, FoV, application-QoS, and/or measurement data). The WTRU may receive CHO configuration information and/or network coverage information (e.g., in response to the provided assistance information). The CHO configuration information may include a set of CHO candidates (e.g., a candidate cell and associated beam(s)) that are associated with a respective mobility cause. The WTRU may determine a mobility cause. The WTRU may determine a CHO candidate upon based on the mobility cause and network coverage information. The WTRU may send a RACH transmission to the determined CHO candidate, for example, if an execution condition for the CHO candidate is fulfilled.
Systems, methods, and instrumentalities are described herein for demodulation reference signal (DM-RS) free operation in wireless systems. A data channel structure (e.g., DM-RS free data channel structure) may be used. The DM-RS free data channel structure may enable unsupervised DM-RS free equalization. The DM-RS free data channel structure may enable reporting performance indicators and parameters associated with the DM-RS free data channel structure.
A wireless transmit/receive unit (WTRU) may send assistance information to a network element. The assistance information may indicate that the WTRU can use sensor data for mobility. The WTRU may receive conditional PSCell change (CPC) configuration information, for example from the network element. The CPC configuration information may include one or more of a CPC candidate for device mobility, a CPC candidate for external mobility, and/or a trigger for performing CPC based on the assistance information. The WTRU may perform a CPC, for example based on a cell quality of a serving cell being below a threshold. The WTRU may determine whether to use the CPC candidate for device mobility and/or the CPC candidate for external mobility based on the sensor data and the trigger, for example to perform the CPC.
A wireless transmit/receive unit (WTRU) may receive a channel state information reference signal (CSI-RS) from a transmitter (e.g., via a reconfigurable intelligent surface (RIS)). The transmitter may be associated with the RIS. The WTRU may determine, based on the CSI-RS, channel information (e.g., channel vector information) associated with a first subset of elements of the RIS. The WTRU may determine, based on the channel information associated with the first subset of elements of the RIS, channel information (e.g., channel vector information) associated with a second subset of elements of the RIS. The WTRU may generate a CSI reporting parameter based on the channel information associated with the second subset of elements of the RIS. The WTRU may send the CSI reporting parameter. The WTRU may generate the CSI reporting parameter using a channel matrix associated with the RIS. The CSI reporting parameter may be a virtual CSI reporting parameter.
H04B 7/04 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
One or more systems, devices, and/or methods may address signal design for ultra-low power receivers. Transmitter and receiver architectures capable of generating signals and waveforms supporting the operation of ultra-low-power receivers and compatible with OFDM-based signals are disclosed. In some cases, there may be procedures that address one or more of the following: device detection of an on-off keying (OOK) modulated sequence with redundant bits corresponding to OFDM symbols' cyclic prefix; device detection of an OOK modulated sequence with dynamic bit duration corresponding to long and short OFDM symbols; device reception of an OOK modulated DCI/message with redundant bits corresponding to OFDM symbols' cyclic prefix; and/or, device reception of an OOK modulated DCI/message with dynamic bit duration corresponding to long and short OFDM symbols.
Systems, methods, and instrumentalities may be described herein for wireless transmit/receive units (WTRUs) to authorize roaming (e.g., authorize an EEC (Edge Enabler Client) in a roaming WTRLI by a V-ECS (Visiting Edge Configuration Server) token that may be generated by the H-ECS (Home Edge Configuration Server). A first message may be sent. The first message may indicate a request for an authorization token to be used in a visiting network. A second message may be sent. The second message may indicate authentication information. A third message may be sent. The third message may indicate an authorization token. The authorization token may be associated with the authentication information. A fourth message may be received. The fourth message may indicate a validation of the authorization token and may indicate an identity of a visiting network.
ADAPTIVE AND DISTRIBUTED REFERENCE SIGNAL INSERTION IN DISCREET FOURIER TRANSFORM-SPREAD-ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (DFT-S-OFDM) SIGNALS
Distributed, adaptive insertion of a reference signals (RSs) in discrete Fourier transform-spread-orthogonal frequency division multiplexing (DFT-s-OFDM) transmission schemes may comprise pre-DFT and/or post-DFT insertion of distributed RSs at locations in the frequency domain. In an example configuration, a wireless transmit/receive unit (WTRU) may determine a first codebook comprising one or more demodulation reference signal (DM-RS) sequences, receive one or more DFT-s-OFDM symbols comprising one or more DM-RS sequences, and determine set of one or more DM-RS sequences using blind detection, based on the received one or more DFT-s-OFDM symbols. This RS insertion scheme may improve overhead, provide control of peak to average power ratio (PAPR), and mitigate adverse effects on spectral efficiency.
A wireless transmit/receive unit (WTRU) is configured to report to a network the WTRU capability for physical downlink control channel (PDCCH) decoding including supported number of discrete fourier transform (DFT) modules and sizes and receive from the network a PDCCH configuration as a search space and control resource set (CORESET) configurations having a spreading factor or an orthogonal code length, a number of frequency resource groups (FRGs) and associated sizes, an indication of code domain multiplexing, and a CORESET format. The WTRU determines resource groups (RG) size and a number of RGs per control channel elements (CCE) based on configured spreading factor and FRG size, and determines an association between RGs and orthogonal cover codes (OCCs) per FRG and orthogonal frequency division multiplexing (OFDM) symbol based on, among other things, the configured spreading factor.
Described herein are systems, methods, and instrumentalities associated with wireless communications using single carrier waveforms. A wireless transmit/receive unit (WTRU) as described herein may receive configuration information that may indicate a control channel element (CCE) and a plurality of resource groups associated with the CCE. Each resource group may include a respective time resource element (TRE) and a respective frequency resource group (FRG), wherein each respective TRE may include a non-integer number of time units, and each respective FRG may include multiple frequency units. The WTRU may determine that the CCE may be associated with a downlink control channel transmission, and further determine allocation pattern information associated with the resource groups in a search space. The WTRU may receive the downlink control channel transmission based on the determined allocation pattern information and receive a downlink shared channel transmission based on information in the downlink control channel transmission.
A first wireless transmit/receive unit (WTRU) may receive a first discovery message associated with a reconfigurable intelligent surface (RIS). The first WTRU may send a solicitation message to a RIS controller in response to receipt of the first discovery message, the solicitation message comprising one or more of capability information associated with the first WTRU, one or more RIS capabilities, one or more RIS modes, or an indication of a second WTRU. The first WTRU may receive a solicitation response message from the RIS controller in response to the solicitation message, the solicitation response message comprising RIS control information associated with the RIS. The first WTRU may send a transmission to the second WTRU via the RIS based on the RIS control information.
H04B 7/04 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
52.
METHODS, APPARATUS, AND SYSTEMS FOR USER-CENTRIC AND DECENTRALIZED ROAMING
A wireless transmit/receive unit (WTRU) may send a roaming request to a network. The network may be a visited network. The roaming request may comprise an address associated with a WTRU roaming proof transaction. The WTRU may receive an authentication vector that depends on an authentication policy described in the WTRU roaming proof transaction. The WTRU may generate an authentication response based on the authentication policy. The WTRU may send the authentication response to the network. The WTRU may receive a notification from the network. The notification may indicate whether the roaming request has been successful.
Methods and apparatuses for enhancement of task distribution in wireless communications are provided. In an example, a wireless transmit/receive unit (WTRU) is configured to determine a first resource requirement for a list of tasks associated with one or more Edge devices; transmit, to the one or more Edge devices, a first request indicating the first resource requirement; receive first information indicating a combination of resources being available at the one or more Edge devices based on the first resource requirement; determine, based on the first information, a second resource requirement for the list of tasks; transmit a second request indicating the second resource requirement; and receive second information indicating a decision result associated with the list of tasks based on the second resource requirement.
Procedures, methods, architectures, apparatuses, systems, devices, and computer program products implemented by a wireless transmit/receive unit (WTRU) comprises: obtaining, at a first time, first user input data; sending first information comprising neural network data generated from a first distributed deep neural network (DNN) of the WTRU; receiving second information comprising first predicted user input data generated from a second DNN of an edge device at a second time; obtaining, at the second time, second user input data; determining a first prediction error based on the first predicted user input data at the second time and on second user input data obtained at the second time; and sending on condition that the first prediction error is above a threshold value, third information comprising the first prediction error and/or an indication to trigger an error correction algorithm for predicting user input.
G06F 3/023 - Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
G06N 3/04 - Architecture, e.g. interconnection topology
H04N 13/117 - Transformation of image signals corresponding to virtual viewpoints, e.g. spatial image interpolation the virtual viewpoint locations being selected by the viewers or determined by viewer tracking
H04N 13/279 - Image signal generators from 3D object models, e.g. computer-generated stereoscopic image signals the virtual viewpoint locations being selected by the viewers or determined by tracking
55.
WIRELESS LOCAL AREA NETWORK (WLAN) SELECTION POLICY
A method performed by a wireless transmit / receive unit (WTRU) may comprise: receiving configuration information, one or more WLANSP rules, and one or more URSP rules; determining a first RSD of a URSP rule for traffic associated with a first application, wherein the configuration information indicates that the first RSD is associated with a first WLANSP rule ID; performing a first WLANSP rule evaluation procedure; determining that the first WLAN rule ID is associated with a first PDU session; determining a second RSD of a URSP rule for traffic associated with a second application, wherein the configuration information indicates that the second RSD is associated with a second WLANSP rule ID; and performing a second WLANSP rule evaluation procedure.
An application function (AF) or network exposure function (NEF) requests authorization tokens to access policy control functions (PCF) from network repository function (NRF) for each AI/ML cycle, and receives a token that authorizes the AF to manage the quality of service (QoS) policy for the next AIML training cycle. Upon token validation, the AF sends a request to the NEF to reserve resources for an AF session. Upon authorization, the NEF sends a discovery request message to a binding support function (BSF) to discover PCFs serving WTRUs of an indicated group for the next AI/ML training cycle in the request from the AF. The BSF sends a discovery response to the NEF that comprises a list of the PCFs serving the identified WTRUs. The authorization tokens for PCF policy management on each PCF for the next AIML training cycle are then requested from the NRF.
H04W 28/16 - Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
H04L 41/16 - Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks using machine learning or artificial intelligence
A method performed by a wireless transmit/receive unit (WTRU) includes receiving configuration information for a configured grant for small data transfers (CG-SDT) to be performed in the Inactive state, receiving PDU sets having PDU set information for each PDU set, determining that the received CG-SDT cannot accommodate transmission of uplink data of the PDU sets, determining a modified physical downlink control channel (PDCCH) monitoring time duration to be used by the WTRU, and transmitting a request for a second CG-SDT to transmit uplink data in the Inactive state.
A wireless transmit receive unit (WTRU) uses an open loop power control (OLPC) formula with sidelink (SL) or downlink (DL) pathloss parameters to transmit a first SL positioning reference signal (SL-PRS) and determines to apply a power offset as a function of the QoS of the positioning service for a second SL-PRS, if a reference signal received power (RSRP) measured and transmitted by a peer WTRU in response to receiving the first SL-PRS is below a configured threshold RSRP associated with the QoS of the positioning service. Additional embodiments are disclosed.
Systems, methods, and tools may schedule protocol data unit (PDU) sets. A wireless transmit receive (WTRU) may receive configuration information, including a delay threshold and a configured grant (CG) arrangement, from a network node. The WTRU may receive a first PDU subset and related information from an application. The WTRU may estimate the payload size and arrival time of a second PDU subset. Based on the estimates and the payload size of the first subset, the WTRU may determine the first and second groups of CG PUSCH occasions. If the estimated arrival time difference between the two subsets is larger than the delay threshold, the WTRU may identify an available CG PUSCH occasion. The information may be sent to the network node.
Methods and apparatuses for initiating withdrawal from a federated learning operation are provided herein. Methods implemented in a wireless transmit receive unit may include: receiving a routing selection policy that includes a background data transfer (BDT) policy; determining that the WTRU cannot meet a requirement of the BDT policy and indicating the WTRU's inability to meet the requirement of the BDT policy. The indication may be by transmitting a status report; transmitting a mobility registration that does not include network slice selection assistance information for an application associated with the BDT policy; releasing a protocol data unit session associated with the BDT policy; or by application layer signaling to an application function associated with the BDT policy.
Methods and apparatus for service continuity for personal IoT network (PIN) elements (PINEs) are described. A first message is received from a PIN server, including context information containing an identifier for a PINE, an identifier for a session for the PINE with an application server, and an identifier for a first PIN gateway (PEGC) providing 3GPP network services to the PINE for the session. A second message is received from the first PEGC, which indicates loss of connectivity with the PINE and includes the identifier for the PINE and the context information. It is determined that the PINE is authorized to connect to a second PEGC. The context information is updated to include an identifier for the second PEGC. A third message is sent to the second PEGC, which contains the identifier for the PINE, the updated context information and an indication to activate service continuity for the PINE.
A wireless transmit/receive unit (WTRU) may be configured to receive configuration information indicating a plurality of sets of associations. Each set of associations may comprise a plurality of respective time instances and a plurality of respective timing advance (TA) offsets. The WTRU may transmit an indication of at least one of a mobile network node identification or WTRU location information. The WTRU may receive an indication of a first set of associations of the plurality of sets of associations. The WTRU may transmit a first sounding reference signal (SRS) for positioning (SRSp) transmission beginning at a first time. The first time may be determined based on at least a first TA offset of the first set of associations and a respective first time instance associated with the first TA offset.
A wireless transmit/receive unit (WTRU) may be configured to receive a configuration for predictive beam refinement. The configuration may include at least one threshold. The at least one threshold may be related to information. The information may be used to predict and/or select one or more beam-pairs. The WTRU may perform measurements on one or more reference signal (RS) sets. The WTRU may determine to store one or more of the measurements, for example as training data samples in a memory. The WTRU may determine to store the one or more measurements based on a comparison of the one or more measurements against the at least one threshold. The WTRU may determine to begin training or retraining a model for performing a prediction related to the one or more beam pairs. The WTRU may transmit an indication that the stored training data samples have reached the at least one threshold.
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H04B 7/08 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
A WTRU may be configured to receive first configuration information associated with a channel state information reference signal (CSI-RS) resource set, a set of transmission configuration index (TCI) states, a set of probability thresholds, and/or a set of time durations. The WTRU may be configured to estimate a line of sight (LOS) probability of the WTRU based on one or more CSI-RS measurements. The WTRU may be configured to determine whether the estimated LOS probability is greater than or equal to a probability threshold from the set of probability thresholds. In response to determining that the estimated LOS probability is greater than or equal to the probability threshold, the WTRU may be configured to determine a time duration from the set of time durations based on the estimated LOS probability. The WTRU may be configured to predict a future TCI state applicable to an associated time instance.
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
65.
METHODS FOR ENERGY-EFFICIENT TRANSMITTER OPERATION AND RELATED-RECEIVER OPERATION
A method for a WTRU can include receiving configuration information including linearity states associated with at least one reference signal (RS), receiving at least one RS, determining at least one linearity setting for the received at least one RS, reporting at least one linearity metric relating to at least one measurement of the received at least one RS, receiving an indication to use a first one of the linearity states for receiving a downlink (DL) transmission, and receiving the DL transmission using the determined linearity setting for an RS of the received at least one RS associated with the indicated first one of the linearity states.
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.
Procedures, methods, architectures, apparatuses, systems, devices, and computer program products directed to artificial intelligence-specific idle/inactive/connected mode measurements procedure. In an embodiment, a method implemented by a wireless transmit receive unit (WTRU), the method comprising: receiving, from a network, a first message comprising a configuration about AI/ML model training and associated measurements and logging periodicity; performing minimization of drive test (MDT) measurements; selecting an AI/ML model for training based on the based on the first message; training the selected AI/ML model based on MDT measurements; and in response to accuracy of the trained model above a configured accuracy threshold, triggering transition to connected state and reporting to the network the trained AI/ML model identity and AI/ML model parameters.
Systems, methods, and instrumentalities are described herein for wireless transmit/receive unit (WTRU) operation in a network with variable power transmissions (e.g., based on an energy saving mode of operation). A device (e.g., a WTRU) may be configured to perform one or more actions. The device may receive configuration information indicating a power offset associated with a channel state information reference signal (CSI-RS) resource. The device may receive a power offset change for the CSI-RS resource. The device may determine an adjusted power offset associated with the CSI-RS resource based on the power offset and the power offset change. The device may determine CSI feedback for the first CSI- RS resource based on a measurement associated with the first CSI-RS resource and the adjusted power offset. The device may send a send a CSI feedback report.
A method performed by a wireless transmit / receive unit (WTRU) may comprise: receiving, from a base station, configuration information; receiving, from an application layer, one or more uplink protocol data units (PDUs); determining a buffering delay for transmitting the one or more uplink PDUs in resources associated with configured grant (CG) physical uplink shared channel (PUSCH) occasions; and on a condition that the buffering delay is greater than a delay threshold and that there are no available resources associated with semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH)occasions within a time window, transmitting an indication of a time offset for the time window. The method may further comprise transmitting, to the base station, in a CG PUSCH occasion, the one or more uplink PDUs.
Systems, methods, and instrumentalities are disclosed for preventing error propagation for sidelink positioning. A target wireless transmit/receive unit (WTRU) may select one or more anchor WTRUs from candidate anchor WTRUs based on an uncertainty metric from the selected anchor WTRUs being below an error threshold. The target WTRU may determine a target WTRU absolute position and a target WTRU uncertainty metric. The target WTRU may determine the target WTRU absolute position using a default positioning method on a condition that the selected anchor WTRUs are below a threshold number of anchor WTRUs. The target WTRU may determine the target WTRU uncertainty metric, and the target WTRU uncertainty metric may include an uncertainty of the target WTRU and/or a degree of uncertainty of the target WTRU. The target WTRU may transmit, to a network node, an indication of the target WTRU absolute position and the target WTRU uncertainty metric.
G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
71.
SERVICE CONTINUITY ASSOCIATED WITH INTER PINE COMMUNICATION CHANGES FROM DIRECT MODE TO USING INTERMEDIATE PEGC
Systems and methods are described herein for service continuity. Service continuity may be performed and/or provided, for example, if (e.g., when) inter wireless transmit/receive unit (WTRU) communication changes from a direct mode to using an intermediate gateway capable WTRU. A personal Internet of Things network (PIN) may be used. WTRUs may be part of the PIN. WTRUs in the PIN may be referred to as a PIN element (PINE). WTRUs and/or PINEs in the PIN may be associated with different capabilities. For example, a PINE in a PIN may be a PINE with gateway capability (PEGC). For example, a PINE in a PIN may be a PINE with management capability (PEMC).
A system and method allowing a group of WTRUs in a group to be handed over in a coordinated manner are disclosed. The system and method include procedures for handling mobility and handover for a subset of WTRUs or all WTRUs belonging to a group, considering application layer requirements. Included procedures enable a single WTRU within a group of WTRUs to trigger handover for other WTRUs within the group. The system and method include procedures enabling a single WTRU to act as an anchor WTRU for handover control messages, allowing it to override handover messages sent by the network, allowing one WTRU in a group to coordinate handovers for all or a subset of WTRUs.
Procedures, methods, architectures, apparatuses, systems, devices, and computer program products for local mobile metaverse service enablers, such as an enabler implemented in a Wireless Transmit/Receive Unit (WTRU). For example, a method may include determining, by a WTRU service enabler hosted by a WTRU, that one or more application clients hosted by the WTRU are interested in available local content. The method may include obtaining, by the WTRU service enabler, the available local content. The method may include providing, by the WTRU service enabler to the one or more application clients, the available local content.
Procedures, methods, architectures, apparatuses, systems, devices, and computer program products directed to control throughput performance. In an embodiment, a method, implemented in a wireless transmit/receive unit (WTRU), comprises receiving, from a network, a measurement configuration information comprising target cells to be measured and a conditional event configuration information for triggering a CHO command; monitoring the current radio conditions of target and serving cells; performing prediction of the radio conditions of target and serving cells; and in response to current radio conditions of a target cell and/or serving cell fulfilling one or more associated radio condition threshold(s) and in response to the predicted radio conditions of a target and/or serving cell fulfilling one or more associated radio condition, executing the CHO command.
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 one or more sidelink transmissions. The scheduling information may indicate a set of scheduled resources. The method may include performing listen before talk (LBT) in the set of scheduled resources for acquiring a subset of resources of the set of scheduled resources. The method may include transmitting sidelink control information indicating the subset of acquired resources. The method may include transmitting data in the subset of acquired resources. The method may include transmitting feedback information to the network related to the one or more sidelink transmissions based on (e.g., a ratio between) a number of acquired resources and a number of scheduled resources.
Described herein are systems, methods and instrumentalities associated with beam management and beam inference (e.g., for holographic MIMO). A wireless transmit/receive unit (WTRU) may receive configuration information from a network device, wherein the configuration information may indicate a hierarchical spatial arrangement of at least a first plurality of beams and a second plurality of beams. The WTRU may be further configured to perform a measurement of a beam that belongs to the first plurality of beams or the second plurality of beams, transmit a report regarding the measurement of the beam to the network device, and determine, based on the configuration information and a beam indication received from the network device subsequent to the transmission of the report, a transmission beam to be used by the WTRU. The WTRU may then perform a transmission using the transmission beam.
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H04L 5/00 - Arrangements affording multiple use of the transmission path
H04B 7/0456 - Selection of precoding matrices or codebooks, e.g. using matrices for antenna weighting
H04L 25/03 - Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
This disclosure pertains to methods and apparatus for radio link failure, radio link monitoring, and/or radio link recovery in multipath wireless communications. For example, a method implemented by a first WTRU includes receiving configuration information indicating a first and a second radio link configuration and a first and a second threshold, where the first threshold is greater than the second threshold; determining that uplink data is pending for transmission on a first transmission to a network entity via a second WTRU, where the first transmission is associated with a first communication link; determining a channel condition of a second transmission from the network entity, where the second transmission is associated with a second communication link; and performing a first radio link procedure using the first radio link configuration based on a measurement of the channel condition being greater than the second threshold and less than the first threshold.
H04W 76/15 - Setup of multiple wireless link connections
H04W 24/04 - Arrangements for maintaining operational condition
H04W 40/22 - Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
H04W 88/04 - Terminal devices adapted for relaying to or from another terminal or user
H04W 88/06 - Terminal devices adapted for operation in multiple networks, e.g. multi-mode terminals
Systems, methods, and instrumentalities are disclosed herein associated with timing alignment in duplex. A wireless transmit/receive unit (WTRU) may be configured to determine a guard time period. The WTRU may receive information related to a grant allocation. The grant allocation may begin at a time associated with a number of starting symbol(s) within a subband. The WTRU may determine that the time associated with the number of starting symbol(s) is within the guard time period. The WTRU may calculate the difference between the time associated with the number of starting symbols and the start time of the guard time period. The WTRU may determine to puncture a part of the transmission that uses the grant allocation based on the size of the difference between the time associated with number of starting symbol(s) and the start time of the guard time period.
Method and apparatus are described herein for paging and responding in different networks, i.e. a non-terrestrial network, NTN, to a terrestrial network, TN. A wireless transmit/receive unit, WTRU, e.g., camping in an idle or inactive state, monitors for paging on a NTN network. The WTRU receives a paging message on the NTN. The paging message provided an indication to respond on a TN network. The WTRU performs a cell reselection to the TN. The WTRU responds to the paging on the NTN network by sending a paging response message on the TN network.
Devices and techniques for supporting inter-node mobility management. An example device may be a first base station. The first base station may include a processor configured to determine that a connection establishment condition has been satisfied. The connection establishment condition may be associated with a satellite position relative to a location. The first base station may initiate a random access channel (RACH) procedure with a second base station based on the connection establishment condition being satisfied. The first base station may establish a Uu link between the first base station and the second base station. The Uu link may be established through a satellite link. The first base station may receive mobility management signaling from the second base station via the Uu link.
Systems, methods, and instrumentalities are described herein for WTRU mobility and cell reselection in energy savings networks. Handover associated with network energy savings (NES) may be performed. A wireless transmit/receive unit (WTRU) may perform a handover from a source cell to a target cell, for example, based on determining that the source cell is entering an NES state and based on determining that a handover condition is satisfied. The WTRU may determine that the handover condition is satisfied but refrain from performing handover until a determination that the source cell is entering an NES state.
A system, wireless device and method for PDU duplication in multicarrier sidelink are disclosed. The method may include the wireless device determining duplication behavior based on QoS of data to be transmitted, CBR, sensing results, and/or resource selection results, HARQ feedback, SL channel measurements reported by a peer WTRU, and RX WTRU explicit indication/request. The method may also include the wireless device determining how long to maintain duplication activated. The method may also include the wireless device bring configured with a prohibit mechanism for enabling duplication. The method may also include the duplication behavior depending on cast type associated with the SLRB.
A wireless transmit/receive unit (WTRU) may receive a radio resource control (RRC) message comprising configuration information. The configuration information may include one or more preconfigured candidate cell configurations. Each of the preconfigured candidate cell configurations may include a special cell (SpCell) configuration, a secondary cell (SCell) configurations, and/or a candidate cell index. The WTRU may receive a medium access control (MAC) control element (CE). The MAC CE may indicate to apply a first preconfigured candidate cell configuration of the one or more preconfigured candidate cell configurations and an activation state for each SCell in the first preconfigured candidate cell configuration. The WTRU may initiate a handover to a SpCell in the first preconfigured candidate cell configuration based on the indication in the MAC CE. The WTRU may transmit data to the SCells activated by the MAC CE.
A wireless transmit/receive unit (WTRU) may be configured to process first downlink data from a source cell using a first security context. The WTRU may receive, from the source cell, configuration information indicating one or more candidate cells for Layer 1 or Layer 2 (L1/L2) triggered mobility (LTM). The WTRU may receive, from the source cell, a LTM indication to perform a handover (HO) to a candidate cell among the one or more candidate cells. The WTRU may determine a second security context associated with the candidate cell. The WTRU may process second downlink data based on the first security context. The WTRU may process third downlink data from the candidate cell using the second security context upon a determination that one or more of the conditions are met.
The disclosure pertains to an apparatus and a method implemented in a Wireless Transmit/Receive Unit (WTRU) for carrier coordination. The method includes receiving one or more preferred carriers associated with a second WTRU and triggering carrier reselection based on receiving the one or more preferred carriers. The method also includes performing carrier selection using the one or more preferred carriers, wherein the WTRU prioritizes the one or more preferred carriers through carrier selection criteria. The method further includes determining a number of carriers to select based on the one or more preferred carriers, and selecting one or more carriers based on the one or more preferred carriers, wherein the selected carrier are restricted based on the one or more preferred carriers. The method further includes sending unicast transmissions to the second WTRU using a selected resource of the first/second carrier. The method also includes sending groupcast/broadcast sidelink transmissions.
H04W 72/02 - Selection of wireless resources by user or terminal
H04W 4/06 - Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
H04W 72/0453 - Resources in frequency domain, e.g. a carrier in FDMA
86.
MEASUREMENT EVENT CONFIGURATION FOR ENABLING L1/2 MOBILITY AND MEASUREMENT REPORTING USING MAC CE
A wireless transmit/receive unit (WTRU) configured to receive a radio resource control (RRC) message comprising an indication of channel configuration information for one or more candidate cells associated with inter-cell mobility, perform the measurement on each of the candidate cells within the subset of the one or more candidate cells, determine whether the event trigger criteria is met by each of the candidate cells within the subset of the one or more candidate cells; and send a second L1/L2 control message comprising an indication of whether the event trigger criteria is met for each of the candidate cells within the subset of the one or more candidate cells and the associated measurement value for each of the candidate cells within the subset.
A wireless transmit/receive unit (WTRU) may determine to perform RLM on a subset of the set of candidate cells for at least the time period after receiving a message, may determine to terminate RLM on the subset of the set of candidate cells once the time period after receiving the message has passed, may determine to report at L1/L2 measurements associated with the RML performed on the subset of the set of candidate cells, may receive a handover command toward a first candidate cell from the subset of the set of candidate cells, and may determine to perform RLM on the first candidate cell in accordance with the configuration information for the RLM for the serving cell based on receiving the handover command.
A WTRU may receive configuration information for transitioning from a source cell to a target cell comprising at least one parameter. The WTRU may transmit an indication of one or more measurements associated with the source and target cell, and may receive signaling associated with the transition comprising at least one value for the at least parameter associated with the transitioning. The WTRU may transition to the target cell using the at least one value for the at least one parameter associated with the transitioning. Configuration information may be received via RRC signaling. The indication of one or more measurements may be transmitted via L1 and/or L2 signaling and may be via a CSI report. At least one parameter may comprise a RACH preamble, timing advance, C-RNTI, initial grant for the target cell, and or beam indication. The signaling may be received via a MAC CE and/or DCI signaling.
A WTRU may receive configuration information indicating that a second cell is to be used for paging early indication (PEI) monitoring when a first cell is a camped cell and/or the first cell is in a network energy saving (NES) state. The WTRU may monitor for a PEI via the second cell based on a determination that the first cell is in the NES state. The WTRU may receive the PEI via the second cell. The WTRU may monitor paging via the first and/or second cell based on a PEI subgroup. The WTRU may transmit an indication via the second cell that indicates the identity of the first cell when the page is received via the second cell. The WTRU may transmit a signal via the first cell when the page is received via the first cell.
A wireless transmit/receive unit (WTRU) may perform L1/L2 switching of primary cells. In an approach, the WTRU configured with configuration information that is common to a multitude of candidate cells and separate configuration information that is specific to each candidate cell, may receive an LTM indication to handover (HO) to a particular candidate cell. Upon receiving the LTM indication to HO to the particular candidate cell, the WTRU may keep the common configuration information, release the separate configuration information specific to the serving cell and/or apply the separate configuration information specific to the target candidate cell.
A method for configuring a wireless transmit/receive unit (WTRU) is provided including receiving from a network one or more of a conditional handover (CHO) or a conditional primary secondary serving cell (PSCell) addition/change (CPAC) configurations including one or more triggering conditions. The triggering conditions may include a candidate primary cell (PCell) or PSCell and an associated signal level threshold. A set of candidate secondary cells (SCells) and associated signal level thresholds may be provided, along with a radio resource control (RRC) reconfiguration to be applied when the one or more triggering conditions are fulfilled. Upon fulfillment of the triggering conditions, the WTRU may execute the RRC reconfiguration and add the SCells that fulfill their corresponding thresholds. An indication may be sent to the network regarding SCells added.
As described herein, there are one or more techniques concerning the performance of training for one or more wireless transmit receive unit(s) (WTRU) configured for generating artificial intelligence and/or machine learning based channel state information feedback.
Procedures, methods, architectures, apparatuses, systems, devices, and computer program products for unlicensed spectrum operations in massively distributed MIMO. A wireless transmit-receive unit, WTRU, may perform adaptive unlicensed operation and procedure for massively distributed MIMO. The WTRU may be (pre-)configured with information about multiple TRPs/TCIs for unlicensed spectrum operations. The WTRU may determine a degree of channel uncertainty. The WTRU may determine a TRP-TCI group and a TRP-TCI set within the determined TRP-TCI group, and may report to the network LBT status for the determined TRP-TCI set. Following the reporting, the WTRU may receive an indication of scheduling resources for the determined TRP-TCI set, and may receive PDSCH or PUSCH transmission according to the indicated scheduling resources.
Systems, methods, and instrumentalities are described herein for connection and establishment and resume in multi-layered networks. A wireless transmit/receive unit (WTRU) may be configured to associate with a first cell of a first network layer. The WTRU may receive configuration information indicating that the first network layer is associated with a first connection cause and a second network layer is associated with a second connection cause. The WTRU may determine to establish a connection and may determine an associated connection cause for establishing the connection. In examples, the associated connection cause may be the second connection cause. Based on the first cell being associated with the first connection cause, the second cell being associated with the second connection cause, and the second cell being available, the WTRU may perform cell re-selection to the second cell. The WTRU may establish the connection via the second cell.
A wireless transmit/receive unit (WTRU) may perform measurements on a first set of beam resources. The WTRU may then predict beam resources in a second set of beam resources based on the measurements on the first set of beam resources. Further, the WTRU may report the predicted beam resources. Moreover, the WTRU may receive one or more first signals using a first beam. In an example, the first beam may use beam resources in the second set of beam resources. Also, the WTRU may perform measurements on one or more accuracy parameters of the received one or more first signals. Further, on a condition that the measured one or more accuracy parameters of the received one or more first signals are acceptable, the WTRU may transmit one or more second signals using the first beam.
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H04B 7/08 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
A wireless transmit-receive unit (WTRU) may camp on a non-terrestrial network (NTN) cell and evaluate one or more terrestrial network (TN) cells, for example, to determine whether to change a radio access network (RAN) based notification area (RNA). In examples, the WTRU may receive an indication to change from a first TN cell to the NTN cell. The WTRU may perform, based on the indication, a cell reselection to the NTN cell. The first TN cell may be associated with a first RNA. The WTRU may evaluate a second TN cell associated with a second RNA. The WTRU may determine that a cell reselection condition associated with the second TN cell is satisfied. The WTRU may perform, based on the determination that the cell reselection condition is satisfied, a cell reselection to the second TN cell.
A wireless transmit and receive unit (WTRU) may be configured to prioritize carriers having available sensing results from inter-UE coordination (IUC) during carrier selection and logical channel prioritization (LCP). A WTRU may be configured to identify a carrier and to determine that the carrier has associated IUC information which may comprise sensing measurements. The WTRU may select the carrier from a plurality of carriers based on the carrier having the associated IUC information. The WTRU may prioritize selection of the carrier over other carriers in the selection based on the IUC information associated with the carrier. The WTRU may associate, based on the IUC information associated with the carrier, a first CBR threshold with the carrier. The WTRU may select data for transmission based on the first CBR threshold associated with the carrier.
Systems, methods, and instrumentalities are described herein for enhanced cell (re)selection prioritization in non-terrestrial networks (NTNs). Cell (re)selection may be determined for terrestrial networks (TNs) and NTNs. Cell (re)selection may be determined for TNs or NTNs based on a wireless transmit/receive unit (WTRU) location and the coverage area associated with the TN or NTN. For example, a WTRU may be connected to a first network and perform (re)selection to a second network based on being outside a coverage area associated with the first network. The WTRU may prioritize a network type, for example, if it is within a coverage area of multiple networks.
A wireless transmit/receive unit (WTRU) may receive information that indicates a sidelink positioning reference signal (SL-PRS) priority threshold and may receive information that triggers a SL-PRS transmission that has an associated priority. The WTRU may determine a first type of SL-PRS resources and a second type of SL-PRS resources based on sensing during a sensing window. The first type of SL-PRS resources may be resources that are not multiplexed with other WTRUs. The second type of SL-PRS resources may be resources that are multiplexed with other WTRUs. The WTRU may select, based on the priority associated with the SL-PRS transmission and the SL-PRS priority threshold, available resources to include in a SL-PRS candidate resource set. The WTRU may select one or more SL-PRS resources from the SL-PRS candidate resource set. The WTRU may transmit a SL-PRS in the selected one or more SL-PRS resources.
Systems, methods, and instrumentalities are described herein for radio link failure (RLF) detection in scenarios where a remote WTRU is connected with the network via multipath link composed of a direct link and a relayed link (e.g., via a relay WTRU connected to the remote WTRU via a sidelink, SL). A remote WTRU may be configured to modify the RLF detection parameters of the direct link (e.g., RLF timer and counter values) based on the conditions on the relayed link such as SL radio quality (e.g., SL RSRP, SL RSRQ, etc.,) or/and SL congestion (e.g., CBR, CR, etc.). A remote WTRU may be configured to modify the RLF detection parameters of the SL (e.g., maximum HARQ DTX value) based on the conditions on the direct link (e.g., RSRP, RSRQ, etc.,) and/or SL congestion (e.g., CBR, CR, etc.).
H04W 40/22 - Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
H04W 88/04 - Terminal devices adapted for relaying to or from another terminal or user
H04W 92/18 - Interfaces between hierarchically similar devices between terminal devices
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