Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), the UE receives, via a Radio Resource Control (RRC) message, a resource configuration of a first configured grant to be used in RRC inactive state. The UE performs a first new transmission using the first configured grant in RRC inactive state. After the performing the first new transmission, the UE receives an uplink grant in RRC inactive state via Physical Downlink Control Channel (PDCCH). The UE determines whether the uplink grant is for performance of a second new transmission or for performance of a first retransmission. The UE performs the second new transmission using the uplink grant in RRC inactive state if the UE determines that the uplink grant is for performance of the second new transmission.

Abstract: In an example, a User Equipment (UE), with a first Universal Subscriber Identity Module (USIM) and a second USIM, enters Radio Resource Control (RRC) connected state in a first network associated with the first USIM.

Abstract: Methods, systems, and apparatuses are provided for beam selection and reporting in a wireless communication system to enhance latency reduction for Downlink (DL)/Uplink (UL) beam selection and activation. A User Equipment (UE) can monitor Physical Downlink Control Channel (PDCCH) on multiple Control Resource Sets (CORESETs) in a first cell, transmit a signaling to a network, wherein the signaling indicates information of a first beam, and monitor PDCCH on the multiple CORESETs via the first beam based on the signaling.

Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), the UE receives an uplink (UL) grant. The UL grant is indicative of a first Physical Uplink Shared Channel (PUSCH) transmission on a first Transmission/Reception Point (TRP) of a first cell. The UL grant is indicative of a second PUSCH transmission on a second TRP of the first cell. The UE transmits a Power Headroom Reporting (PHR) Medium Access Control (MAC) Control Element (CE). Based on the UL grant, the PHR MAC CE is indicative of a first power headroom (PH), associated with the first TRP, based on a real PUSCH transmission, and is indicative of a second PH, associated with the second TRP, based on a reference PUSCH transmission. The second PUSCH transmission is performed after transmitting the PHR MAC CE.

Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), the UE triggers a Power Headroom Report (PHR) when the UE is in Radio Resource Control (RRC) inactive state. The UE determines whether or not to cancel the PHR based upon whether or not an uplink (UL) resource for transmission in the RRC inactive state can accommodate first pending data available for transmission.

Abstract: A method and apparatus are disclosed from the perspective of a first network node. In one embodiment, the method includes the first network node transmitting a second transmission to a UE (User Equipment) in at least a first symbol of a first TTI (Transmission Time Interval). The method further includes the first network node transmitting a first transmission to a second network node in at least a second symbol of a second TTI, wherein the first TTI is TTI-level aligned to the second TTI and the first symbol is at least partially overlapped with the second symbol in time domain.

Abstract: A method and device are disclosed from the perspective of a UE (User Equipment). In one embodiment, the method includes the UE receiving a first signaling to configure a preconfigured uplink resource (PUR) to be used in a cell. The method further includes the UE determining whether to use the PUR in the cell at least based on whether a timing advance is valid, wherein whether the timing advance is valid is based on a difference between a first measurement result and a second measurement result, and wherein the first measurement result is not a cell measurement quantity of the cell.

Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE) configured with logical channel based prioritization, the UE determines prioritization between a first uplink (UL) grant and a first scheduling request based on a first logical channel associated with triggering the first scheduling request, wherein the first UL grant and the first scheduling request overlap in time domain. The UE receives a second UL grant, wherein the second UL grant and a second scheduling request overlap in time domain. The UE prioritizes the second UL grant over the second scheduling request based on the second UL grant being addressed to a Temporary Cell Radio Network Temporary Identifier (C-RNTI) of the UE.

Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), the UE receives one or more uplink grants scheduling a first uplink transmission and a second uplink transmission on a first serving cell. The first uplink transmission is associated with a first Timing Advance (TA). The second uplink transmission is associated with a second TA. The first uplink transmission at least partially overlaps with the second uplink transmission in time domain. Based on a comparison of a TA difference, between the first TA and the second TA, with a first threshold, the UE transmits at least one of the first uplink transmission or the second uplink transmission.

Abstract: A method and apparatus are disclosed from the perspective of a first network node served by a second network node. In one embodiment, the method includes the first network node performs a transmission to the second network node with a timing advance, wherein the timing advance is set to transmission delay between the first network node and the second network node or is set to the transmission delay with a timing reduction.

Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), the UE initiates a Random Access (RA) procedure. The UE selects, from multiple carriers, a carrier for the RA procedure based on a measured Reference Signal Received Power (RSRP). The UE determines, based on the measured RSRP, whether or not to use a Physical Random Access Channel (PRACH) resource, associated with Message 3 (Msg3) repetition, for Message 1 (Msg1) transmission of the RA procedure, wherein the determination is performed after the selecting the carrier.

Abstract: A method and apparatus are disclosed from the perspective of a UE (User Equipment) with a first USIM (Universal Mobile Telecommunications System Subscriber Identity Module) and a second USIM. In one embodiment, the method includes the UE transmitting, to a first network node associated with the first USIM, a message carrying information related to a signaling activity between the UE and a second network node associated with the second USIM.

Abstract: Methods and apparatuses are provided for ensuring, for a unified TCI framework, a MAC CE format for associating code-point of a TCI field, and a TCI state for DL/UL beam indications. A UE can receive a MAC CE for associating at least one TCI state with at least one code-point of a TCI field in a DCI, wherein the MAC CE comprises at least a first octet including a first TCI state ID field associated with a first TCI state and a first field indicating DL or UL for the first TCI state, a second octet including a second TCI state ID field associated with a second TCI state and a second field indicating DL or UL for the second TCI state, and a third octet including a third field for the UE to determine whether the first TCI state and the second TCI state are associated with a same code-point or different code-points of the TCI field.

Abstract: A method and device are disclosed from the perspective of a UE (User Equipment). In one embodiment, the method includes the UE receiving a first signaling to configure a preconfigured uplink resource (PUR) to be used in a cell. The method further includes the UE determining whether to use the PUR in the cell at least based on whether a timing advance is valid, wherein whether the timing advance is valid is based on a difference between a first measurement result and a second measurement result, and wherein the first measurement result is not a cell measurement quantity of the cell.

Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), a Slot Format Indication (SFI) is received within a first Channel Occupancy Time (COT) of a serving cell. The SFI is indicative of one or more slot formats of one or more slots of the serving cell. A first signal indicative of an ending position of the first COT is received. A beginning of at least one slot of the one or more slots is after the ending position. The UE determines whether to apply a slot format, of a slot of the one or more slots, to the slot based upon whether the slot is within the first COT, wherein the slot format of the slot is indicated by the SFI.

Abstract: Methods and apparatuses are provided for ensuring, for a unified TCI framework, a MAC CE format for associating code-point of a TCI field, and a TCI state for DL/UL beam indications. A UE can receive a MAC CE for associating at least one TCI state with at least one code-point of a TCI field in a DCI, wherein the MAC CE comprises at least a first octet including a first TCI state ID field associated with a first TCI state and a first field indicating DL or UL for the first TCI state, a second octet including a second TCI state ID field associated with a second TCI state and a second field indicating DL or UL for the second TCI state, and a third octet including a third field for the UE to determine whether the first TCI state and the second TCI state are associated with a same code-point or different code-points of the TCI field.

Abstract: Methods and apparatuses for transmission or reception using beamforming in a wireless communication system are disclosed herein. In one method, a user equipment provides information related to a combination of UE beams to a network node, wherein UE beams in the combination can be generated by the UE at the same time. The UE receives, from the network node, a scheduling information for a transmission or a reception. The UE generates one or more UE beams in the combination to perform the transmission or the reception.

Abstract: A method and apparatus are disclosed from the perspective of a UE (User Equipment) with a first USIM (Universal Mobile Telecommunications System Subscriber Identity Module) and a second USIM. In one embodiment, the method includes the UE transmitting, to a first network node associated with the first USIM, a message carrying information related to a signaling activity between the UE and a second network node associated with the second USIM.

Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), the UE triggers a first beam failure recovery (BFR) associated with a first cell. In response to the first triggered BFR, the UE triggers a Scheduling Request (SR) for Secondary Cell (SCell) beam failure recovery. In response to deactivation of the first cell, the UE cancels the first triggered BFR and the triggered SR for SCell beam failure recovery associated with the first cell.

Abstract: A method and apparatus are disclosed from the perspective of a first network node. In one embodiment, the method includes the first network node transmitting a second transmission to a UE (User Equipment) in at least a first symbol of a first TTI (Transmission Time Interval). The method further includes the first network node transmitting a first transmission to a second network node in at least a second symbol of a second TTI, wherein the first TTI is TTI-level aligned to the second TTI and the first symbol is at least partially overlapped with the second symbol in time domain.