Abstract: In an example, a User Equipment (UE) operates with shared spectrum channel access on a carrier and/or a cell. The UE receives a configuration for configuring configured grants for uplink transmission in a bandwidth part (BWP). The configured grants include a first configured grant and a second configured grant. The UE configures a first minimum Downlink Feedback Indication (DFI) time delay for the first configured grant according to the configuration. The first minimum DFI time delay is for validation of Hybrid Automatic Repeat Request (HARQ) information in response to one or more first uplink transmissions. The UE configures a second minimum DFI time delay for the second configured grant according to the configuration. The second minimum DFI time delay is for validation of HARQ information in response to one or more second uplink transmissions. The UE does not expect the second minimum DFI time delay to have a different value than the first minimum DFI time delay.

Abstract: A method and apparatus are disclosed from the perspective of a User Equipment (UE). In one embodiment, the method includes the UE being configured with a first DL (Downlink) BWP (Bandwidth Part) and a second DL BWP. The method also includes the UE receiving and/or monitoring a DCI (Downlink Control Information) in a scheduling CORESET (Control Resource Set) in the first DL BWP, and for determining size of the DCI for decoding, the UE determines whether a TCI (Transmission Configuration Indication) field is present in the DCI or not based on a parameter of the scheduling CORESET before the UE decodes the DCI successfully. The method further includes the UE truncates or pads zero-bits to at least one field (other than the TCI field) in the DCI based on configuration of the second DL BWP after the UE decodes successfully the DCI, wherein a BWP indicator field in the DCI indicates the second DL BWP different from the first DL BWP.

Abstract: In an example, a device receives a first sidelink control information in a first sidelink Transmission Time Interval (TTI) in a sidelink resource pool. The first sidelink control information is indicative of a first sidelink resource in a second sidelink TTI. The device determines a conflict associated with the first sidelink resource. The device determines a transmission occasion for a first sidelink transmission with conflict information. The device determines a plurality of sidelink transmissions in the transmission occasion. The plurality of sidelink transmissions comprises a first set of sidelink transmissions with conflict information, and/or a second set of sidelink transmissions with sidelink Hybrid Automatic Repeat Request (HARQ) feedback. The first set of sidelink transmissions comprise the first sidelink transmission. The device determines one or more sidelink transmissions of the plurality of the sidelink transmissions.

Abstract: In an example from the perspective of a first User Equipment (UE), in response to performing successful listen before talk (LBT), the first UE determines a channel occupancy time (COT). The first UE determines whether or not a second sidelink transmission, to be performed by a second UE, is within the COT. The first UE determines information, associated with LBT type and/or cyclic prefix (CP) extension, for inclusion in a first sidelink transmission in the COT, wherein whether the information includes first information associated with LBT type and/or CP extension or the information includes second information associated with LBT type and/or CP extension is based on the determination of whether or not the second sidelink transmission is within the COT. The UE transmits, to the second UE, the first sidelink transmission in the COT. The first sidelink transmission includes the information. The second sidelink transmission is associated with the first sidelink transmission.

Abstract: A method and apparatus are disclosed from the perspective of a device to perform sidelink transmission. The method includes the device being in RRC (Radio Resource Control)-connected mode in Uu link. The method also includes the device being configured to use at least DL (Downlink) pathloss for sidelink power control. The method further includes the device deriving a first DL pathloss value for determining an uplink transmit power of one specific kind of uplink transmission. In addition, the method includes the device determining or deriving a sidelink transmit power based on the first DL pathloss value. Furthermore, the method includes the device performing a sidelink transmission to other device(s) with the sidelink transmit power.

Abstract: A method and apparatus are disclosed from the perspective of a User Equipment (UE) in a wireless communication system. The method can include receiving a configuration for a first set of power control information and a second set of power control information, receiving a Downlink Control Information (DCI) scheduling one or more Physical Uplink Shared Channels (PUSCHs), wherein the DCI comprises a first Sounding Reference Signal Resource Indicator (SRI) field and a second SRI field, determining a first Identifier (ID) directly based on value indicated by the first SRI field, wherein the first ID is a power control information ID in the first set of power control information, determining a second ID based on a value indicated by the second SRI field and the number of layers, and transmitting the one or more PUSCHs based on transmit power derived from the power control information of the first ID or the power control information of the second ID.

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. In an example from the perspective of a first device, the first device performs sidelink communication with one or more destinations. The first device receives and/or selects a sidelink grant associated with a sidelink transmission. Responsive to the sidelink grant, the first device selects a first destination of the one or more destinations based upon a report signaling. The first device performs the sidelink transmission associated with the sidelink grant to the first destination.

Abstract: A method and apparatus are disclosed. In an example from the perspective of a first device, the first device determines a second sidelink resource in a first sidelink slot in a carrier and/or a cell, wherein the first device has a configuration of a first sidelink resource pool in the carrier and/or the cell. The first device performs a procedure to select a first sidelink resource in the first sidelink resource pool, wherein the first sidelink resource is selected from among candidate sidelink resources, of the first sidelink resource pool, that are not in the first sidelink slot. The first device performs a first sidelink transmission on the first sidelink resource.

Abstract: A method and apparatus are disclosed from the perspective of a device to perform sidelink transmission. The method includes the device being in RRC (Radio Resource Control)-connected mode in Uu link. The method also includes the device being configured to use at least DL (Downlink) pathloss for sidelink power control. The method further includes the device deriving a first DL pathloss value for determining an uplink transmit power of one specific kind of uplink transmission. In addition, the method includes the device determining or deriving a sidelink transmit power based on the first DL pathloss value. Furthermore, the method includes the device performing a sidelink transmission to other device(s) with the sidelink transmit power.

Abstract: In an example, a User Equipment (UE) is configured with one or more first Physical Uplink Control Channel (PUCCH) resources on a primary cell (PCell) and configured with one or more second PUCCH resources on a secondary cell (SCell). The PCell and the SCell are associated with a PUCCH group. Before a first slot, the UE changes an active uplink (UL) bandwidth part (BWP) of a cell. The cell associated with the changing the active UL BWP is the PCell or the SCell. A first occasion of the PCell is before the changing the active UL BWP. A second occasion of the SCell is before the changing the active UL BWP. The first occasion and the second occasion are associated with the first slot. The UE determines whether or not to include Hybrid Automatic Repeat request (HARQ) information, associated with the second occasion, in a HARQ codebook based on whether or not the SCell, associated with transmitting the HARQ codebook, is the same as the cell associated with the changing the active UL BWP.

Abstract: In an example, a User Equipment (UE) is configured with one or more first Physical Uplink Control Channel (PUCCH) resources on a primary cell (PCell) and configured with one or more second PUCCH resources on a secondary cell (SCell). The PCell and the SCell are associated with a PUCCH group. Before a first slot, the UE changes an active uplink (UL) bandwidth part (BWP) of a cell. The cell associated with the changing the active UL BWP is the PCell or the SCell. A first occasion of the PCell is before the changing the active UL BWP. A second occasion of the SCell is before the changing the active UL BWP. The first occasion and the second occasion are associated with the first slot. The UE determines whether or not to include Hybrid Automatic Repeat request (HARQ) information, associated with the second occasion, in a HARQ codebook based on whether or not the SCell, associated with transmitting the HARQ codebook, is the same as the cell associated with the changing the active UL BWP.

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 apparatus are disclosed from the perspective of a User Equipment (UE). In one embodiment, the method includes the UE performing transmission and/or reception in a serving cell, wherein the serving cell is in unlicensed spectrum. The method further includes the UE being configured to receive slot format indication (SFI) on periodic SFI monitoring occasion(s), wherein periodic SFI monitoring occasion(s) is (pre-)configured by a network. The method also includes the UE, in response to receiving and/or detecting a channel indicator, monitoring and/or detecting a first SFI-related signal on a first occasion, wherein the first occasion is not one of (pre-)configured periodic SFI monitoring occasion(s).

Abstract: A method and apparatus are disclosed. In an example from the perspective of a first device configured to discontinuously monitor one or more sidelink control channels, the first device performs a first sidelink transmission to a second device. In response to the first sidelink transmission, the first device starts or restarts a timer. The first device monitors a first sidelink control channel, from at least the second device, when the timer is running.

Abstract: A method and apparatus are disclosed from the perspective of a network. In one embodiment, the method includes the network configuring a DL (Downlink) BWP (Bandwidth Part) and an UL (Uplink) BWP in a first serving cell to a UE (User Equipment). The method also includes the network configuring a paired spectrum operation in the first serving cell to the UE. The method further includes the network transmitting a first DCI (Downlink Control Information) to the UE, wherein the first DCI comprises a slot format combination indicating one or more slot format values for the DL BWP and one or more slot format values for the UL BWP. In addition, the method includes the network prevents from setting an amount of slot format values in the slot format combination in the first DCI to be not divided by a first number, wherein the first number is associated with an absolute value of a difference of a first SCS (Subcarrier Spacing) configuration and a second SCS configuration.

Abstract: A method and device are disclosed from the perspective of a first device. In one embodiment, the method includes the first device being configured with a Sidelink (SL) Discontinuous Reception (DRX) configuration. The method also includes the first device performing a sidelink communication with a second device. The method further includes the first device receiving a signaling, from the second device, indicating a new sidelink transmission. In addition, the method includes the first device determining whether to start or restart a timer in response to the signaling at least based on information indicated in the signaling, wherein the first device monitors sidelink control channel when the timer is running.

Abstract: A method and device are disclosed from the perspective of a first device handling radio link failure. In one method, the method includes the first device performing or establishing sidelink unicast communication with a second device. The method also includes the first device performing or establishing sidelink unicast communication with a third device. The method also includes the first device detecting a radio link failure associated with the second device. The method further includes the first device performing a Sidelink MAC reset associated with the second device in response to the radio link failure, and not performing a Sidelink MAC reset associated with the third device.

Abstract: A method and apparatus are disclosed from the perspective of a second User Equipment (UE) for performing sidelink communication. In one embodiment, the method includes the second UE being (pre-)configured with a sidelink resource pool in a carrier or cell, wherein a DRX (Discontinuous Reception) pattern is associated to the sidelink resource pool. The method also includes the second UE selecting a resource in the sidelink resource pool based on the DRX pattern, wherein a specific message becomes available for transmission in the second UE. The method further includes the second UE transmitting the specific message on the resource to a plurality of UEs comprising at least a first UE.

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.