Abstract: A user equipment (UE) and a method for small data transmission (SDT) are provided. The method includes initiating an SDT procedure while the UE is in a Radio Resource Control (RRC) Inactive (RRC_INACTIVE) state; initiating a random access (RA) procedure before the SDT procedure is terminated; and determining whether to include a Cell-Radio Network Temporary Identifier (C-RNTI) Medium Access Control (MAC) Control Element (CE) in an uplink (UL) message during the RA procedure based on at least one condition. The at least one condition includes whether the SDT procedure corresponds to a Configured Grant (CG)-SDT procedure. The UL message is a message 3 (Msg3) in a case that the RA procedure is a 4-step RA procedure. The UL message is a message A (MsgA) in a case that the RA procedure is a 2-step RA procedure.

Abstract: A method performed by a user equipment (UE) for wireless communication is provided. The method includes initiating a random access (RA)-based small data transmission (SDT) procedure while the UE is in a radio resource control (RRC) inactive state; starting a timer while the UE is in the RRC inactive state after initiating the RA-based SDT procedure; initiating an RA procedure; determining whether an RA problem associated with the RA procedure has occurred while the timer is running; and in response to determining that the RA problem of the RA procedure has occurred while the timer is running, transitioning from the RRC inactive state to an RRC idle state.

Abstract: A method for MBS acquisition is provided. The method includes receiving system information from a BS; determining a first CORESET configuration and a second CORESET configuration according to the system information, the first CORESET configuration determining a first set of CORESETs scheduling at least one MCCH, the second CORESET configuration determining a second set of CORESETs scheduling a plurality of MTCHs; receiving an MCCH message on the at least one MCCH provided through a first beam of a plurality of beams associated with the BS; and determining, according to the second CORESET configuration and the MCCH message, a plurality of MBS-specific CORESET groups in the second set of CORESETs, wherein each of the plurality of MBS-specific CORESET groups corresponds to a respective MBS session and includes at least two CORESETs configured to be provided through at least two different beams of the plurality of beams. A UE using the method is also provided.

Abstract: A method and a user equipment for HARQ process ID selection are provided. The method includes: receiving a configuration message to configure a Configured Grant (CG) configuration and a set of HARQ process IDs that is available for the CG configuration, the set of HARQ process IDs including a first HARQ process ID for retransmission and a second HARQ process ID for initial transmission; determining that a CG physical uplink shared channel (PUSCH) corresponding to the CG configuration becomes available for transmission; selecting, based on a first HARQ process ID selection procedure, the first HARQ process ID or the second HARQ process ID from the set of HARQ process IDs for the CG PUSCH; and transmitting, based on the selected first or second HARQ process ID, a first Medium Access Control (MAC) Protocol Data Unit (PDU) for retransmission or a second MAC PDU for initial transmission on the CG PUSCH.

Abstract: A method of HARQ process for MBS and a UE using the same method are provided. The method includes: receiving first DCI on a first PDCCH scrambled by a first RNTI, wherein the first DCI comprises a first NDI value and schedules a first downlink data reception corresponding to a HARQ process; receiving second DCI on a second PDCCH scrambled by a second RNTI, wherein the second DCI comprises a second NDI value and schedules a second downlink data reception corresponding to the HARQ process; identifying a first type of the first RNTI and a second type of the second RNTI; and determining, according to the first type and the second type, whether the first NDI value and the second NDI value are used for determining the second downlink data reception corresponds to an initial transmission or a retransmission of the first downlink data reception.

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 performed by a UE for a Small Data Transmission (SDT) procedure is provided. The method comprises receiving, from a Base Station (BS), a Radio Resource Control (RRC) release message including an SDT configuration while the UE is in an RRC_CONNECTED state; transitioning to an RRC_INACTIVE state from the RRC_CONNECTED state in response to receiving the RRC release message; and determining, by an RRC layer of the UE, whether to initiate the SDT procedure based on the SDT configuration when the RRC layer receives a first indication from a Medium Access Control (MAC) layer of the UE, wherein the first indication indicates whether at least one condition for initiating the SDT procedure is fulfilled or not.

Abstract: A method for a user equipment (UE) to monitor a physical downlink control channel (PDCCH) is provided. The method receives, while being in a radio resource control (RRC) CONNECTED state, from a base station (BS), an RRC release message that includes a small data transmission (SDT) configuration. After receiving the RRC release message, the method transitions to an RRC_INACTIVE state from the RRC_CONNECTED state in response to receiving the RRC release message. The method then initiates an SDT procedure based on the SDT configuration. The method further determines whether a search space set associated with an SDT search space is received from the BS. The method monitors the PDCCHby monitoring the search space set during the SDT procedure when the search space set is received from the BS.

Abstract: A method performed by a UE for management of MBS data reception is provided. The method includes receiving a DRX configuration mapped to an MBS, the DRX configuration including a timer and controlling activity of the UE for monitoring a PDCCH associated with a G-RNTI of the MBS; receiving a first DL assignment associated with the G-RNTI on the PDCCH; identifying an unsuccessful reception of a PDSCH that is scheduled by the first DL assignment and used for receiving data of the MBS; starting the timer after identifying the unsuccessful reception of the PDSCH; and enabling use of a C-RNTI to decode a second DL assignment while the timer is running. A UE using the method is also provided.

Abstract: A method for handling Hybrid Automatic Repeat reQuest (HARQ) feedback transmissions includes a User Equipment (UE) receiving, from a Base Station (BS), Downlink Control Information (DCI) on a Physical Downlink Control Channel (PDCCH). The DCI schedules a reception of Downlink (DL) data on a Physical Downlink Shared Channel (PDSCH). The method further includes the UE determining whether to transmit a HARQ feedback for the DL data according to the DCI.

Abstract: A method for uplink transmission performed by a UE is provided. The method includes: receiving a first configured grant configuration that allocates a first PUSCH duration; receiving a second configured grant configuration that allocates a second PUSCH duration, wherein the second PUSCH duration overlaps with the first PUSCH duration; obtaining a first HARQ process ID for the first PUSCH duration, then determining whether a first configured grant timer associated with the first HARQ process ID is running; obtaining a second HARQ process ID for the second PUSCH duration, then determining whether a second configured grant timer associated with the second HARQ process ID is running; and selecting one of the first PUSCH duration and the second PUSCH duration for an uplink transmission based on whether the first configured grant timer is running and whether the second configured grant timer is running.

Abstract: A method performed by a UE for repetition transmissions is provided. The method includes receiving DCI scheduling an uplink transmission; identifying a DCI format of the DCI; selecting, from a plurality of sets of preconfigured values, a set of preconfigured values that is mapped to the DCI format; and determining a number of times the uplink transmission is required to be repeated from the selected set of preconfigured values. A UE applying the same method is also provided.

Abstract: The disclosure provides a method for configuring a discontinuous reception (DRX) setting and user equipment (UE). The method includes: receiving, by the UE, at least one configuration from a network node, wherein the at least one configuration is used for receiving a multicast broadcast service (MBS), the at least one configuration comprises a first radio network temporary identifier (RNTI) and a plurality of first DRX parameters used for monitoring a physical downlink control channel (PDCCH) based on the first RNTI, and the UE receives the MBS from the network node via at least one of a point-to-point (PTP) transmission scheme and a point-to-multipoint (PTM) transmission scheme; receiving, by the UE, an indication from the network node, wherein the indication indicates a transmission scheme used for the MBS; and starting, by the UE, a first DRX timer associated with the first DRX parameters in response to the indication.

Abstract: A method performed by a user equipment (UE) for data transmission is provided. The method includes transmitting, in radio resource control (RRC) inactive state, an RRC message to a base station for requesting an RRC state transition on an uplink (UL) resource of a configured grant (CG) configuration; transmitting first uplink data to the base station on an UL resource of the CG configuration; starting a timer upon transmitting on an UL resource of the CG configuration; and monitoring a response from the base station while the timer is running. The timer is configured to stop in response to at least one stop condition, and the at least one stop condition includes the response that responds to the RRC message for requesting the RRC state transition is received. In addition, a UE using the method is also provided.

Abstract: A method for small data transmission (SDT) and related device are provided. In the method, a configured grant (CG) configuration for SDT, from a base station (BS), is received. A synchronization signal/physical broadcast channel block (SSB) set, from the BS, is received. A mapping ratio configuration, from the BS, is received. The mapping ratio configuration indicates a number of SSBs per CG resource, the SSBs are configured by the SSB set, and the CG resource is configured by the CG configuration for SDT. A mapping between SSB indexes of the SSBs and the CG resource is determined based on the mapping ratio configuration and an increasing order of indexes of the CG resource.

Abstract: A method for small data transmission (SDT) and related device are provided. In the method, a configuration from a base station (BS) is received. The configuration indicates a first reference signal received power (RSRP) threshold and a second RSRP threshold. A SDT procedure is initiated based on a configured grant (CG) resource in response to a RSRP of a downlink (DL) pathloss reference being higher than the first RSRP threshold. In response to initiating the SDT procedure based on the CG resource, the method further includes the following. A synchronization signal/physical broadcast channel block (SSB) from a SSB set in a case that the SSB has a RSRP above the second RSRP threshold. A random access (RA) procedure is initiated in response to none of SSBs in the SSB set having a RSRP above the second RSRP threshold.

Abstract: A method for small data transmission (SDT) and a user equipment (UE) are provided. In the method, a SDT procedure is initiated. A synchronization signal/physical broadcast channel block (SSB) is selected during the SDT procedure. Transmission is performed based on a selected SSB during the SDT procedure. A timer is started or restarted in response to performing the transmission. A physical downlink control channel (PDCCH) is monitored, while the timer is running, by assuming the PDCCH has the same demodulation reference signal (DM-RS) antenna port quasi co-location properties as for the selected SSB associated with transmission.

Abstract: A method for Scheduling Request (SR) resource prioritization for Beam Failure Recovery (BFR) includes a User Equipment (UE) receiving a first SR configuration from a Base Station (BS), receiving a second SR configuration from the BS, triggering a first SR procedure for a BFR procedure based on the first SR configuration, triggering a second SR procedure for a Buffer Status Report (BSR) procedure based on the second SR configuration, in a case that the first SR procedure and the second SR procedure are triggered and not cancelled and the first SR resource overlaps the second SR resource in the time domain, prioritizing the first SR resource over the second SR resource, and transmitting an SR on the first SR resource after prioritizing the first SR resource over the second SR resource.

Abstract: A method performed by a User Equipment (UE) is provided. The method includes receiving a first Downlink (DL) assignment on a first Physical Downlink Control Channel (PDCCH), where the first DL assignment may determine a first time location of a first time slot including a first resource for transmitting first Hybrid Automatic Repeat reQuest (HARQ)-Acknowledgement (ACK) feedback. The method further includes performing a first DL process in response to receiving the first DL assignment, receiving a second DL assignment on a second PDCCH in a time interval between an end of the first PDCCH and a beginning of the first resource, and interrupting the first DL process in response to receiving the second DL assignment, where the first DL process includes at least one operation for the UE to generate the first HARQ-ACK feedback.

Abstract: A method performed by a User Equipment (UE) is provided. The method includes the UE receiving a Radio Resource Control (RRC) configuration including a plurality of repetition lists that are associated with a plurality of Downlink Control Information (DCI) formats. Each of the plurality of repetition lists includes a plurality of values, and each of the plurality of values indicates the number of repetitions for a Physical Uplink Shared Channel (PUSCH) transmission. The method further includes the UE receiving DCI having a particular DCI format for scheduling the PUSCH transmission. The DCI includes an indicator indicating one of the plurality of values included in one of the plurality of repetition lists. The one of the plurality of repetition lists is associated with the particular DCI format. The method further includes the UE performing the PUSCH transmission for a number of times, where the number of times is determined by the one of the plurality of values.