Abstract: Methods and apparatuses for a MAC CE for multi-TRP operation in a wireless communication system. A method of a UE comprises: receiving, from a base station, a RACH-less switching command for a RACH-less switching operation to a target cell; determining whether a DRX is configured for the target cell; and retaining an active time during the RACH-less switching operation based on a determination that the DRX is configured for the target cell, monitoring a PDCCH to acquire a UL grant of an initial UL transmission, wherein the initial UL transmission for the RACH-less switching operation includes a transmission of a RRCReconfigurationComplete message to a target satellite or the target cell.

Abstract: A reduced capability (RedCap) user equipment (UE) includes a transceiver configured to receive a message including (i) one or more random access (RA) configurations and (ii) a contention free random access (CFRA) resource configuration including an indication of a number of message 1 (Msg1) repetitions. The RedCap UE further includes a processor operatively coupled to the transceiver. The Processor is configured to determine (i) whether a RA configuration, from the one or more RA configurations is associated with a RedCap feature, and (ii) whether the RA configuration is associated with the number of Msg1 repetitions included in the CFRA resource configuration, based on a result of the determination, select a first RA configuration, from the one or more RA configurations, and perform a RA procedure according to the selected first RA configuration.

Abstract: A user equipment (UE) includes a transceiver configured to receive a message including a layer 1/layer 2 (L1/L2)-triggered mobility (LTM) configuration. The LTM configuration includes a plurality of LTM candidate cells. The UE further includes a processor operably coupled to the transceiver. The processor is configured to determine that a T304 timer or a T310 timer has expired, and based on the determination that the T304 timer or the T310 timer has expired, initiate a radio resource control (RRC) re-establishment procedure and start an RRC reestablishment (T311) timer. The processor is further configured to, while the T311 timer is running, select a cell, determine whether the LTM configuration includes an indication to perform LTM cell switch to the selected cell, and determine whether the selected cell is one of the plurality of LTM candidate cells in the LTM configuration.

Abstract: A system and method for user selection in distributed multiple-input, multiple-output (MIMO). The system performs a method that includes configuring a first channel state information-reference signal (CSI-RS) resource set for a serving transmission point (TRP) and a second CSI-RS resource for a concatenated channel, wherein the concatenated channel is between a virtual panel and the apparatus, the virtual panel comprising distributed panels from a serving TRP and a helping TRP. The method also includes computing a metric as a function of one or more quantities included in one or more measurement reports, received from a user equipment (UE), for the concatenated channel and at least one of the serving TRP channel or the helping TRP channel. The method also includes configuring, based on the metric, the UE for one of: a legacy transmission or a distributed MIMO transmission.

Abstract: Methods and apparatuses for uplink transmissions and receptions for random access channel (RACH)-less handover. A method includes receiving information for a first configuration for RACH-less handover procedure in a system information block (SIB) from a source cell, a first set of synchronization signal (SS) and physical broadcast channel (PBCH) (SS/PBCH) block indexes, a physical uplink shared channel (PUSCH) for a transmission of the PUSCH on a target cell, and a number of repetitions of the transmission of the PUSCH on the target cell. The method further includes determining a spatial setting for the transmission of the PUSCH and transmitting the PUSCH with the number of repetitions using the spatial setting on the target cell.

Abstract: Methods and apparatuses for a RACH-less handover for a mobility operation in a wireless communication system. A method of a UE comprises: receiving a first message including configuration information for a RACH-less HO; determining whether the configuration information includes the CG configuration or the beam indication; identifying: a CG PUSCH occasion based on a determination that the configuration information includes the CG configuration, or a TCI state ID or a SSB index based on a determination that the configuration information includes the beam indication; and transmitting, to the target cell: an uplink signal including a second message in response to the first message at the identified CG PUSCH occasion when the configuration information includes the CG configuration, or the uplink signal based on an uplink grant received in a PDCCH, the PDCCH being monitored based on the beam indication when the configuration information includes the beam indication.

Abstract: Methods and apparatuses for a multiple timing advance groups for a multi-TRP operation in a wireless communication system. A method of a UE comprises: determining whether a serving cell is configured with more than one TAG and a timer of a TAG associated with a TCI state stops or expires for a first HARQ feedback in a first HARQ process on the serving cell or a second HARQ feedback in a second HARQ process on the serving cell; determining to not generate a first indication indicating a lower layer to generate an ACK corresponding to a data transmission in a TB in the first HARQ process; and determining to not generate a second indication indicating the lower layer to generate an ACK corresponding to a data transmission in a TB in the second HARQ process when the serving cell is configured with a sl-PUCCH-Config.

Abstract: Apparatuses and methods for measurement based on a low power signal. A method of a user equipment (UE) in a wireless communication system includes determining an On Off Keying (OOK) waveform for a low-power synchronization signal (LP-SS) and determining, based on the LP-SS, at least one of a LP-SS reference signal received power (LP-RSRP), a LP-SS reference signal received quality (LP-RSRQ), a LP-SS received signal strength indicator (LP-RSSI), and a LP-SS signal to noise and interference ratio (LP-SINR). The determined at least one of the LP-RSRP, the LP-RSRQ, the LP-RSSI, and the LP-SINR is based on segments with non-zero values in the OOK waveform of the LP-SS. The method further includes performing a first radio resource management (RRM) measurement based on the LP-SS using a low-power receiver (LR) of the UE.

Abstract: Methods and apparatuses for a random access for lower layer signal based mobility in a wireless communication system. A method of a UE comprises: receiving an RRC reconfiguration message including a set of configurations of candidate cells for LTM; receiving an early TA command for acquisition of an early TA, the early TA command indicating a candidate cell configuration index; identifying, based on the RRC reconfiguration message, a configuration from the set of configurations associated with the candidate cell configuration index; and transmitting, based on the configuration, a RA preamble for the acquisition of the early TA for a candidate cell associated with the candidate cell configuration index.

Abstract: Methods and apparatuses for a MAC CE for multi-TRP operation in a wireless communication system. A method of a UE comprises: receiving, from a BS belonging to a serving cell, a first MAC PDU including a first MAC subheader with a first eLCID and a first MAC CE; identifying, based on the first eLCID, an enhanced unified TCI states activation/deactivation MAC CE for joint TCI states or separate TCI states including a bitmap of TCI state ID presence indications and TCI state IDs, wherein a bit in the bitmap of TCI state ID presence indications indicates, for the TCI state IDs associated with a codepoint of a DCI TCI field, whether a TCI state for a TRP is present in a corresponding MAC CE, and a maximum number of the TCI state IDs that are activated is 32; and indicating, to lower layers, information associated with the corresponding MAC CE.

Abstract: A UE includes a transceiver. The transceiver is configured to transmit a UE capability information message including an indication that the UE supports multiple TAs per serving cell for multi-TRP operation, and receive a RRC reconfiguration message including a plurality of TAG IDs for a serving cell and a mapping between a plurality of TCI states and the plurality of TAG IDs for the serving cell. The UE further includes a processor operably coupled to the transceiver. The processor is configured to determine, based on the mapping, a TAG ID from the plurality of TAG IDs that corresponds with at least one TCI state from the plurality of TCI states. The mapping is signaled per BWP of the serving cell. The transceiver is further configured to transmit, to the serving cell, a RA preamble to obtain a TA for a TAG of the serving cell.

Abstract: Methods and apparatuses for an NTN neighbor cell measurement operation in a wireless communication system are provided. The method of UE comprises: determining whether a common search space is configured for an active bandwidth part (BWP); receiving, from a base station (BS) via a dedicated system information, a first system information block (SIB) including terrestrial network (TN) coverage information based on a determination that the common search space is not configured for the active BWP; and identifying that the TN coverage information belongs to other system information (SI).

Abstract: Methods and apparatuses in a wireless communication system. A base station (BS) includes a transceiver and a processor. The processor regulates a transmit power in a direction of an earth station or a predefined receiver by: calculating a power flux density for the BS to the earth station or the predefined receiver; calculating an equivalent antenna gain for other base stations; calculating a directional power back-off level for the other base stations with respect to the earth station or the predefined receiver; generating a restricted precoding matrix indicator based on the calculated directional power back-off level; generating an N1-N2 bitmap for the BS; and applying the N1-N2 bitmap for signal transmission to at least one UE. The N1-N2 bitmap is generated based on: physical parameters of the earth station of the predefined receiver; physical parameters of the BS; an operator input metric; or restricted precoding matrix indicator.

Abstract: Methods and apparatuses for a measurement control operation with low power signals in a wireless communication system. A method of a UE comprises: receiving first and second signal; performing a measurement operation on the first signal of the serving cell: based on a determination that the measurement result of the first signal meets the first threshold, skipping the measurement operation on the second signal of the serving cell, and based on a determination that the measurement result of the first signal does not meet the first threshold: performing a measurement operation on the second signal of the serving cell, determining whether a measurement result of the second signal meets a second threshold, and based on a determination that the measurement result of the second signal of the serving cell meets the second threshold, skipping a measurement operation on a signal of a neighboring cell.

Abstract: Methods and apparatuses for a cell reselection evaluation based on a low-reception-power signal in a wireless communication system. A method of a UE comprises: receiving first configuration information including an identification (ID) of at least one cell capable of using low-power (LP) signals and second configuration information including a set of threshold parameters for a cell reselection operation using the LP signals; performing, based on the first configuration information, a measurement operation on the LP signals; and performing, based on the set of threshold parameters and a measurement result of the measurement operation, the cell reselection operation.

Abstract: Methods and apparatuses for a paging reception with low power signals in a wireless communication system. A method of a UE comprises: receiving, from a base station (BS), system information (SI); identifying, based on the SI, time occasions to monitor a low power-wake-up signal (LP-WUS) from a plurality of LP-WUSs; monitoring, based on the time occasions, the LP-WUS associated with a serving cell; determining whether the LP-WUS is detected in the time occasions; and monitoring, based on the determination that the LP-WUS is detected, at least one of a paging early indicator (PEI) and a paging message.

Abstract: Methods and apparatuses for a UE mode switching operation for power saving in a wireless communication system. A method of a UE comprises: receiving, from a BS, configuration information related to mode switching events including a first mode switching event and a second mode switching event; when the first mode switching event occurs, switching an operation mode to a power saving mode from a normal mode by deactivating a MR operation and monitoring a LP-WUS; and when the second mode switching event occurs, switching the operation mode to the normal mode from the power saving mode by activating the MR operation.

Abstract: Methods and apparatuses for a L1/L2 triggered mobility execution in a wireless communication system are provided. The method of UE comprises: receiving information related to (i) an LTM configuration and (ii) an applicability of the LTM configuration to recover from a failure of an LTM execution; determining whether the applicability of the LTM configuration to recover from the failure of the LTM execution is enabled; determining whether the LTM execution fails; performing a cell selection operation based on a determination that the LTM execution fails; determining whether a cell that is selected in the cell selection operation is an LTM candidate cell; performing the LTM execution based on a determination that the cell is an LTM candidate cell and the applicability of the LTM configuration to recover from the failure of the LTM execution is enabled; applying the LTM configuration and transmitting a random access preamble.

Abstract: An AI/ML monitoring operation is based on a received monitoring configuration forming part of a configuration for using an AI/ML model for a communications system operation. Based on the monitoring configuration, AI/ML model assistance information is reported, including AI/ML model monitoring results from the AI/ML monitoring operation. AI/ML model management and adaptation information based on those AI/ML model monitoring results is received, an AI/ML model management and adaptation operation is performed. The AI/ML model management and adaptation information may include parameters that characterize an action of AI/ML model management and adaptation or an indication of an action of AI/ML model management and adaptation. The action of AI/ML model management and adaptation may comprise one of model switch, model refinement or update, or model transfer.

Abstract: Methods and apparatuses in a wireless communication system. A base station (BS) includes a transceiver and a processor. The processor is configured to transmit a common beam to at least one user equipment (UE). The processor is also configured to configure the common beam to have a null area in a direction of a satellite earth station, the null area defining a space within a coverage area of the common beam in which a signal from the common beam is suppressed.