Abstract: A method of triggering a packet data convergence protocol (PDCP) status report performed by a user equipment (UE) is provided. The method includes receiving, from a network, a Data Radio Bearer (DRB) configuration that is associated with a first PDCP entity of the UE; receiving, from the network, a Multicast Broadcast Service Radio Bearer (MRB) configuration that is associated with a second PDCP entity of the UE; triggering, by the first PDCP entity, a first PDCP status report based on a first configuration of the first PDCP entity; and triggering, by the second PDCP entity, a second PDCP status report based on a second configuration of the second PDCP entity.

Abstract: A method for a user equipment (UE) for performing a paging reception is provided. The method includes determining whether the UE registers to a first network associated with an Evolved Packet Core (EPC) network; determining whether to transmit a requested offset value for a paging occasion calculation to the first network after the UE determines that the UE registers to the first network; transmitting, to the first network, the requested offset value after the UE determines to transmit the requested offset value to the first network; receiving, from the first network, a configured offset value for the paging occasion calculation; forwarding, by a Non-Access-Stratum (NAS) layer of the UE, to a lower layer of the UE, the configured offset value; and performing the paging reception based on a first UE identity (ID), wherein the first UE ID is determined based on the configured offset value.

Abstract: A user equipment (UE) includes one or more non-transitory computer-readable media containing computer-executable instructions embodied therein and at least one processor coupled to the one or more non-transitory computer-readable media. The at least one processor is configured to receive through a serving cell of a first Radio Access Technology (RAT), a sidelink (SL) resource configuration of a second RAT, determine first validity area information associated with the first RAT and second validity area information associated with the second RAT, and identify a validity area of the SL resource configuration based on the first validity area information and the second validity area information.

Abstract: A method for sidelink operation performed by a user equipment (UE) is provided. The method includes receiving, from a first cell, a conditional handover command that includes an indication of a second cell and one or more triggering conditions for handover to the second cell, performing handover to the second cell after determining that at least one of the triggering conditions is fulfilled, and applying a sidelink resource configuration that is stored in the UE after performing handover to the second cell based on the conditional handover command.

Abstract: A method for multicast service data reception is provided. The method determines whether a first PDCCH addressed to a first RNTI is received on a first BWP. When a BWP inactivity timer is configured, a default BWP is configured, and the first BWP is not the default BWP, the method (re)starts the BWP inactivity timer after determining that the first PDCCH is received on the first BWP, and switches to the default BWP when the BWP inactivity timer expires. When the BWP inactivity timer is configured, the default BWP is not configured, and the first BWP is not an initial BWP, the method (re)starts the BWP inactivity timer after determining that the first PDCCH is received on the first BWP, and switches to the initial BWP when the BWP inactivity timer expires.

Abstract: A user equipment (UE) and a method for wireless communication are provided. The method includes: receiving a radio resource control (RRC) configuration from a base station (BS); determining whether a first parameter is configured in the RRC configuration; receiving first downlink control information (DCI) from the BS, the first DCI including a first field indicating a first Hybrid Automatic Repeat Request (HARD) process identifier (ID); determining that a number of bits in the first field is a default number in a case that the first parameter is not configured in the RRC configuration; and determining that the number of bits in the first field is a specific number greater than the default number in a case that the first parameter is configured in the RRC configuration.

Abstract: A method performed by a user equipment (UE) includes initiating a Small Data Transmission (SDT) procedure for transmitting a first set of data packets to a base station (BS) via an uplink (UL) transmission, determining, while the UE is in a Radio Resource Control (RRC) Inactive state, whether to prioritize the UL transmission over a sidelink (SL) transmission when there is a conflict between the UL transmission and the SL transmission during the SDT procedure, where the SL transmission is for transmitting a second set of data packets to another UE.

Abstract: A base station (BS) and a method for system information (SI) modification procedure are provided. The method includes transmitting, to a user equipment (UE), downlink control information (DCI) with a cyclic redundancy check (CRC) scrambled by a paging radio network temporary identifier (P-RNTI), the DCI including an SI modification bit and a public warning system (PWS) notification bit. The DCI enables the UE to perform an SI acquisition procedure in a case that the SI modification bit is set. The DCI enables the UE to acquire at least one of an earthquake and tsunami warning system (ETWS) notification and a commercial mobile alert system (CMAS) notification immediately after the UE determines that the PWS notification bit is set.

Abstract: A method and a user equipment (UE) for resource selection approach adaptation are provided. The method includes receiving, from a Base Station (BS), a first Sidelink (SL) transmission resource pool configuration and a second SL transmission resource pool configuration; performing a first resource selection on a first SL transmission resource pool by applying a first resource selection approach; receiving, from the BS, an adaption indication that a second resource selection approach is to be applied; performing, during a transition period between a time at which the adaption indication is received and a time at which the second resource selection approach is applied, a second resource selection on a second SL transmission resource pool by applying a third resource selection approach; and performing, after the transition period, a third resource selection on the first SL transmission resource pool by applying the second resource selection approach indicated by the adaption indication.

Abstract: A method of channel state information (CSI) reporting by a first user equipment (UE) is disclosed. The method comprises receiving, from a base station (BS), a radio resource control (RRC) message to configure a first priority level for a logical channel; performing a sidelink (SL) communication with a second UE; generating a Medium Access Control (MAC) control element (CE) for a CSI report for the SL communication with a second priority level in a fixed value; determining a prioritization between the MAC CE including the CSI report and data from the logical channel according to the fixed value of the second priority level and the first priority level; and transmitting, to the second UE or the BS, at least one of the MAC CE and the data from the logical channel based on the determined prioritization.

Abstract: A method performed by a UE is provided. The method includes receiving DCI on a PDCCH from a BS, the DCI indicating a PDSCH; receiving a MAC CE command on the PDSCH; determining, according to the DCI, whether a HARQ ACK feedback for a data reception on the PDSCH is needed to be transmitted; and applying, after determining that the HARQ ACK feedback is needed to be transmitted, the MAC CE command after a first slot identified by a first value of n+K0+K1+Np+M, where n is an index of a slot in which the DCI is received, K0 and K1 are slot offsets, Np indicates an approximated delay determined by a TA value, and M indicates a processing delay.

Abstract: A method for sidelink operation performed by a user equipment (UE) is provided. The method includes receiving, from a first cell, a conditional handover command that includes an indication of a second cell and one or more triggering conditions for handover to the second cell, performing handover to the second cell after determining that at least one of the triggering conditions is fulfilled, and applying a sidelink resource configuration that is stored in the UE after performing handover to the second cell based on the conditional handover command.

Abstract: A method of performing a paging reception and a UE using the same are provided. The method includes: receiving a paging message, wherein the paging message comprises a first list; determining whether a UE identity of the UE included in the first list; determining whether a paging cause corresponding to the UE identity indicated by a second list of the paging message after determining that the UE identity included in the first list; and forwarding the paging cause to an upper layer of the UE in response to the paging cause being indicated by the second list.

Abstract: Methods and apparatuses for handling measurement operations in a wireless communication system are provided. A method performed by a User Equipment (UE) includes receiving a first measurement configuration from a first serving cell; performing, in a first Radio Resource Control (RRC) state which is an RRC idle state or an RRC inactive state, a first measurement operation based on the first measurement configuration; generating a first measurement result; receiving a first measurement report request from a second serving cell; retaining the first measurement result after the UE transitions from the first RRC state to a second RRC state which is an RRC connected state; and transmitting the first measurement result to the second serving cell, wherein the first serving cell and the first RRC state are associated with a first Radio Access Technology (RAT) and the second serving cell and the second RRC state are associated with a second RAT.

Abstract: A UE and a method for handling UE onboarding are provided. The method includes receiving a first indication, a second indication, and a third indication from a cell via a SIB1, the cell operated by one or more SNPNs; reporting, by an AS layer of the UE, the first indication, the second indication, and the third indication to a NAS layer of the UE; receiving, by the AS layer of the UE, an indication for UE onboarding from the NAS layer of the UE; and transmitting a first RRC message to the cell, the first RRC message including an onboarding request associated with the indication for UE onboarding.

Abstract: A system and a method of random access resource selection are provided. The method includes a target Base Station (BS) transmitting a first Synchronization Signal Block (SSB) to a User Equipment (UE), the first SSB associated with a first contention-free random access resource for the UE to transmit a random access preamble; the target BS transmitting a second SSB to the UE, the second SSB associated with a contention-based random access resource; and in a case that a first Synchronization Signal-Reference Signal Received Power (SS-RSRP) of the first SSB is not greater than an SS-RSRP threshold and a second SS-RSRP of the second SSB is greater than the SS-RSRP threshold, the target BS receiving the random access preamble from the UE using the contention-based random access resource.

Abstract: A method for a system information (SI) request procedure performed by a user equipment (UE) is provided. The method includes: receiving a system information block type 1 (SIB1) from a cell; transmitting, to the cell, a first message including a common control channel (CCCH) service data unit (SDU) that includes a radio resource control (RRC) SI request message; receiving, from the cell, a medium access control (MAC) control element (CE) including a UE contention resolution identity; and indicating, by a MAC entity of the UE, reception of an acknowledgment for the RRC SI request message to an RRC entity of the UE after determining that the UE contention resolution identity matches multiple consecutive bits, starting from the most significant bit (MSB), of the CCCH SDU. The SIB1 does not include information related to a Random Access (RA) resource specific to SI requested by the RRC SI request message.

Abstract: A method by a base station for receiving power headroom reporting from a user equipment (UE) in a Multi-Radio Access Technology (RAT)-Dual Connectivity (MR-DC) scenario, the method includes receiving a DC Power Headroom Report (PHR) Medium Access Control (MAC) Control Element (CE) from the UE, the DC PHR MAC CE having a fixed number of octets with cell index fields for indicating whether a power headroom (PH) for a serving cell with a corresponding cell index is reported, wherein the fixed number of octets is independent of a highest secondary Cell Index (SCellIndex) for serving cells with configured uplinks.

Abstract: A UE and a method for SDT are provided. The method includes initiating a RA procedure with a BS while the UE is in an RRC_INACTIVE state; transmitting a preamble; receiving a RAR scheduled by first DCI with CRC bits scrambled by a RA-RNTI on a first search space; transmitting first UL data on a first UL resource, being not from a CCCH, scheduled by the RAR; monitoring the first search space for receiving first DL data scheduled by second DCI with CRC bits scrambled by a TC-RNTI indicated by the RAR; applying the TC-RNTI as a C-RNTI while receiving the first DL data; monitoring the second search space for a second UL resource scheduled by third DCI with first CRC bits scrambled by the C-RNTI if the first DL data indicates the search space configuration; otherwise, monitoring the first search space for the second UL resource.

Abstract: A method of system information transmission for a network in a wireless communication system is disclosed. The method comprises broadcasting essential minimum system information (SI) of a cell of the wireless communication system with fixed scheduled on a downlink broadcast channel, wherein the essential minimum SI includes scheduling information for non-essential minimum SI of at least one of the cell and an auxiliary cell or a frequency location, the non-essential minimum SI is broadcasted with dynamically scheduled on a downlink shared channel, and the scheduling information includes a time and frequency resource configuration and an availability information for indicating whether the cell broadcasts the non-essential minimum SI.