Abstract: According to some embodiments, a method is performed by a wireless device (110) for power saving. The wireless device operates with a first cell group and a second cell group. The method comprises: receiving a command to transition the second cell group from a first mode of operation to a second mode of operation; transitioning the second cell group into the second mode of operation; modifying at least one parameter that was used for performing radio link monitoring, RLM, associated with the second cell group while the second cell group was in the first mode of operation; and performing RLM according to the at least one modified parameter while the second cell group is in the second mode of operation.

Abstract: A wireless transmit/receive unit (WTRU) may receive information indicating a set of L1/L2 mobility (LTM) candidate cells, information indicating a threshold number of cells, information indicating a threshold cell quality value, and information indicating cells served by a same distributed unit (DU) as a current cell. The WTRU may determine that a radio link failure (RLF) or handover failure occurs on the current cell. If a number of LTM candidate cells measured above the threshold cell quality value is above the threshold number of cells and at least one of the LTM candidate cells which is above the threshold cell quality value is served by the same DU as the current cell, the WTRU may select one of the LTM candidate cells above that threshold cell quality value that is served by the same DU. The WTRU may perform LTM recovery to the selected LTM candidate cell.

Abstract: A wireless transmit/receive unit (WTRU) may receive indication information indicating an uplink (UL) configuration and one or more triggering conditions for transmission of UL signals. Based on reception of a deactivation command or fulfillment of a condition for WTRU-triggered deactivation of a secondary cell group (SCG), the WTRU may deactivate the SCG. Based on the UL configuration and the fulfillment of the one or more triggering conditions, the WTRU may transmit the UL signals via the SCG. The WTRU may receive, via a master cell group (MCG), an in-synch or out-of-synch indication for the SCG. Based on the reception of the out-of-synch indication including a timing advance (TA) delta value, the WTRU may update a UL TA towards the SCG based on the TA delta value. Using the updated UL TA towards the SCG, the WTRU may transmit one or more subsequent UL signals via the SCG.

Abstract: A WTRU may be configured to receive a bearer configuration information. For example, the bearer configuration information may comprise at least one of: a configuration for a first bearer that is associated with a direct path, a configuration for a second bearer that is associated with an indirect path, and/or a configuration for a third bearer that is associated with the direct path and the indirect path. Each of the bearers may be associated with a priority. The WTRU may receive data at one of the second bearer or the third bearer. The WTRU may generate a flexible BSR MAC CE that includes an indication of the LCG and the buffer size. If the data is received at the second bearer, the LCG may be the second bearer's LCG identifier. If the data is received at the third bearer, the LCG may be the third bearer's LCG identifier.

Abstract: A wireless transmit/receive unit (WTRU) may determine that data associated with a RB is to be transmitted. For example, the RB may be capable of being used to transmit, via a sidelink (SL), an uplink (UL), or a combination of the SL and the UL, the data associated with the RB. The WTRU may determine whether a first triggering condition associated with an SL resource allocation for the data is satisfied. The first triggering condition may be that the WTRU has not received, before a delay time duration ends, one or more resource grants that allocate sufficient resources for the data. If the WTRU determines that a first triggering condition is satisfied, the WTRU may perform the SL resource allocation for the data associated with the RB. The WTRU may determine an SL resource to transmit the data, for example, by performing the SL resource allocation.

Abstract: A wireless transmit/receive unit (WTRU) may transmit data associated with a protocol data unit (PDU). The WTRU may receive a retransmission request for the data associated with the PDU. The WTRU may determine a retransmission scheme based on a triggering condition. The WTRU may send the data associated with the PDU using the determined retransmission scheme. For example, the WTRU may determine that a first triggering condition of multiple triggering conditions is satisfied. The first triggering condition may that the WTRU has retransmitted at least a threshold number of times. The WTRU may determine, based at least on the satisfaction of the first triggering condition, a retransmission scheme to send the data. The retransmission scheme may include a retransmission of the data associated with the PDU using a sidelink (SL) and an uplink (UL).

Abstract: A WTRU may be configured to receive a first configuration information indicating a first number of code block groups (CBGs), receive a first DL scheduling information, and receive the first TB. The first TB may be comprised of the first number of CBGs. The WTRU may be configured to transmit a HARQ-ACK or a HARQ-NACK for each of the first number of CBGs, determine a second number of CBGs based on at least one of: a measurement, a current rate of ACK-to-NACK, or an estimation of packet delay or latency, determine a precision metric associated with the second number of CBGs, receive a second configuration information indicating a third number of CBGs, receive a second DL scheduling information that indicates a transmission of a second TB, receive the second TB, and transmit a HARQ-ACK or HARQ-NACK for each of the third number of CBGs.

Abstract: Among the procedures, methods, architectures, apparatuses, systems, devices, and computer program products disclosed herein for multipath relaying isa wireless transmit/receive unit (WTRU) configured to: receive, from a network node, configuration information for configuring, by the WTRU, a multipath connection, the multipath connection comprising a direct path via a first link with the network node and an indirect path via a second link, the second link being a sidelink associated with a sidelink relay WTRU; receive, from the network node, first system information on a first serving cell, the first serving cell being associated with the direct path; receive, from the network node, a message to release the direct path; perform a serving cell change from the first serving cell to a second serving cell, the second serving cell being associated with the indirect path; and receive, from the sidelink relay WTRU, second system information of the second serving cell.

Abstract: A wireless transmit/receive unit (WTRU) may be configured to receive configuration information from a network that indicates a first set of layer 1/layer 2 triggered mobility (LTM) measurement parameters and a second set of LTM measurement parameters to be applied when performing measurements associated with a beam. The WTRU may be configured to receive an indication of a condition associated with a height of the WTRU, a speed of the WTRU, and/or a location of the WTRU. The WTRU may be configured to measure the beam using the first set of LTM measurement parameters when the condition is not met or using the second set of LTM measurement parameters when the condition is met. The WTRU may be configured to send the beam measurements to the network based on the condition.

Abstract: Systems, methods, and instrumentalities are disclosed for mobility execution in uncrewed aerial vehicles using condition triggered early synchronization. A wireless transmit/receive unit (WTRU) may receive configuration information including one or more trigger conditions for performing early synchronization with a candidate target cell. The WTRU may determine that the one or more trigger conditions for performing early synchronization with the candidate target cell are satisfied. The WTRU may, based on the determination that the one or more trigger conditions for performing early synchronization with the candidate target cell are satisfied, perform early synchronization with the candidate target cell. The WTRU may transmit a synchronization report.

Abstract: A wireless transmit/receive unit (WTRU) may receive configuration information that indicates a protocol data unit (PDU) set priority value. The WTRU may determine that a PDU set is associated with a priority that is higher than the PDU set priority value. The WTRU may determine, based on the determination that the PDU set is associated with the priority that is higher than the PDU set priority value and a determination that a status report associated with the PDU set has not been received by the WTRU, that a polling indicator is to be sent. The WTRU may send the polling indicator. The polling indicator may indicate a request for a transmission of the status report associated with the PDU set.

Abstract: Systems, methods, devices, and instrumentalities are described herein relate to network indicated fallback waypoints or flight paths. A wireless transmit/receive unit (WTRU) may transmit a first message indicating flight path information is available. The WTRU may receive a second message including flight path reporting configuration information. The flight path reporting configuration may request the flight path information. The WTRU may transmit an initial flight path message within a third message. The WTRU may detect that a previously reported flight path is invalid and notify a network. The WTRU may monitor the network for an indication of an updated fallback waypoint or flight path to apply.

Abstract: Methods, apparatuses, and systems are disclosed. In one example, a method performed by a wireless transmit/receive unit (WTRU) includes receiving an indication of a relation between a key performance indicator and a configuration parameter; receiving an indication of a range of values that can be assigned to the parameter and an initial value for the parameter; receiving configuration information that indicates a first condition associated with the key performance indicator; in response to a determination that the first condition has been satisfied, determining an updated value for the configured parameter, wherein the updated value is within the range of the values, to achieve a second condition associated with the key performance indicator using a model; and in response to a determination that the updated value is to be assigned to the configuration parameter, performing one or more actions.

Abstract: According to certain embodiments, a method in a wireless device is provided. The method comprises receiving a first s-measure criteria. The method further comprises performing measurements on a first radio access technology (RAT) and on a second RAT. The second RAT is different than the first RAT. The measurements on the second RAT are performed regardless of whether or not the first s-measure criteria is fulfilled.

Abstract: A wireless transmit/receive unit (WTRU) and methods implemented therein are described. A method, implemented in a WTRU configured in multipath with mode 2 on sidelink and at least one flexible radio bearer configured with both a Uu logical channel and an SL logical channel, includes receiving a configuration for a dedicated Uu scheduling request (SR) related to a condition associated with mode 2 resource selection. The WTRU transmits the dedicated Uu SR based on the condition being met.

Abstract: A WTRU may receive configuration information associated with CHO for a set of stable cells and/or non-stable cells. The WTRU may receive a CHO priority indication that includes an indication to prioritize stable cells for CHO or an indication to prioritize non-stable cells for CHO. The CHO priority indication may be received via at least one of: the received configuration information associated with CHO for the set of stable cells, or the received configuration information associated with CHO for the set of non-stable cells. The WTRU may determine whether at least one CHO triggering condition is met for a cell in response to a CHO trigger based on the received CHO priority indication. For example, the received CHO priority indication may be an indication that a serving cell is to enter an NES state and/or an of a time that the serving cell is to enter the NES state.

Abstract: Methods, apparatuses, and computer-readable storage media for facilitating condition mobility may perform conditional path switching. In various embodiments, handover of a WTRU from a current cell to a target cell may involve an intermediate relay WTRU, wherein the handover may occur upon specific conditions being met. For example, a remote WTRU may receive path switching configuration information associated with each of a plurality of candidate relay WTRUs. The remote WTRU may select a relay WTRU from the plurality of candidate relay WTRUs based on conditions being satisfied. The path switching configuration information associated with the selected relay WTRU may be applied to the remote WTRU. The remote WTRU may send a message to a network regarding the plurality of candidate relay WTRUs, and may receive an indication to connect to another relay WTRU.

Abstract: Disclosed herein are systems, methods, and instrumentalities associated with HARQ feedback overhead reduction. A wireless transmit/receive unit (WTRU) may transmit a first type of HARQ feedback to a network device. The WTRU may then determine, based on a measurement or prediction made by the WTRU, that a condition for using a second type of HARQ feedback is met. The WTRU may send a first message to the network device, wherein the first message may indicate that the condition for switching to the second type of HARQ feedback is met. The WTRU may receive a second message from the network device in response to the first message, wherein the second message may include an indication for the WTRU to use the second type of HARQ feedback. The WTRU may then transmit a HARQ feedback of the second type based on the second message received from the network device.

Abstract: A wireless transmit/receive unit (WTRU) may receive, from a network, configuration information that is associated with a plurality of configuration parameters and may indicate one or more of an applicability range for each of the plurality of configuration parameters or a set of default and non-default values for each of the plurality of configuration parameters. The WTRU may determine that one or more conditions associated with a first configuration parameter of the plurality of configuration parameters has been met. The WTRU may change a configured value of the first configuration parameter from a first configured value to a second configured value, based on the one or more conditions being met. The WTRU may send a report to the network that indicates the second configured value of the first configuration parameter.

Abstract: A WTRU may be configured to receive a bearer configuration information. For example, the bearer configuration information may comprise at least one of: a configuration for a first bearer that is associated with a direct path, a configuration for a second bearer that is associated with an indirect path, and/or a configuration for a third bearer that is associated with the direct path and the indirect path. The WTRU may receive data at the third bearer. The WTRU may determine a BSR type associated with the received data based at least on a primary path configured for the WTRU. For example, if the primary path configured for the WTRU is the direct path, BSR type may be determined to be the Uu BSR. If, for example, the primary path configured for the WTRU is the indirect path, the BSR type may be determined to be a SL BSR.