Abstract: Methods, systems, and apparatuses are provided for uplink transmission to transmission and reception point with reduced functionality in a wireless communication system, wherein a method comprises receiving a Physical Downlink Control Channel (PDCCH) order from a first Transmission/Reception Point (TRP) of a serving cell, wherein a field in the PDCCH order indicates an association between a Physical Random Access Channel (PRACH) transmission and the first TRP with Downlink (DL) and Uplink (UL) functionality or an association between the PRACH transmission and a second TRP, of the serving cell, without DL functionality or with reduced DL functionality, and performing the PRACH transmission in response to the PDCCH order, wherein a transmit power of the PRACH transmission is determined based on the field.

Abstract: Methods and apparatuses are provided for power headroom report regarding multiple TRPs in a wireless communication system. The systems and methods of the present invention address, expand, and improve how networks perform power control on multiple TRPs, how networks manage power control for uplink transmissions for different links, and how a UE derives one or more PH/PHR for different links.

Abstract: Methods, systems, and apparatuses are provided for handling random access reporting in a wireless communication system, wherein a method of a User Equipment (UE) comprises receiving a first Physical Downlink Control Channel (PDCCH) order, initiating, in response to receiving the first PDCCH order, a first Random Access (RA) procedure to a candidate cell for early Timing Advance (TA) acquisition, storing a first RA information associated with the first RA procedure, and reporting the first RA information to a network in response to a request from the network.

Abstract: Methods, systems, and apparatuses are provided for handling User Equipment (UE)-initiated beam change in a wireless communication system, with a method of a UE comprising triggering or initiating a UE-initiated beam switching associated with a Cell, transmitting a beam switching indication associated with the Cell in response to the UE-initiated beam switching, and performing, in response to considering the UE-initiated beam switching to be not successful, or expiration of a timer, at least one of: canceling the triggered UE-initiated beam switching associated with the Cell, and/or canceling a Scheduling Request (SR) associated with the UE-initiated beam switching, and/or stopping a Random Access (RA) procedure associated with the UE-initiated beam switching, and/or triggering a Beam Failure Recovery (BFR) associated with the Cell, and/or retransmitting the beam switching indication, and/or generating and transmitting a second beam switching indication.

Abstract: Methods, systems, and apparatuses are provided for enhancing timing alignment for uplink (UL) multi-Transmission/Reception Point (TRP) (or mTRP) scenarios in a wireless communication system. A method for a UE in a wireless communication system can comprise receiving a signaling, wherein the signaling indicates activation for a first TRP and/or is a Physical Downlink Control Channel (PDCCH) signal, determining to perform a first random access procedure on the first TRP, based on the signaling, to obtain a first Time Alignment (TA) information associated with the first TRP, and performing multi-TRP operation on the first TRP associated with the first TA information and a second TRP associated with a second TA information.

Abstract: Methods, systems, and apparatuses are provided for transmitting User Equipment (UE) triggered reports in a wireless communication system, comprising receiving a configuration of at least one condition to trigger a report by a UE, wherein the report is an L1 report or a Medium Access Control (MAC) Control Element (CE), receiving a downlink signal indicating at least one joint or Downlink (DL) Transmission Configuration Indicator (TCI) state, wherein the at least one joint or DL TCI state is associated with a first Reference Signal (RS), and triggering the report based on a first condition of the at least one condition being fulfilled, wherein: the first condition includes that: an L1-Reference Signal Received Power (RSRP) of one or more candidate beams is with an offset better than an L1-RSRP of a current beam, or a number of instances, that the L1-RSRP of the one or more candidate beams is with the offset better than the L1-RSRP of the current beam, exceeds or reaches a maximum number, and the UE determines t

Abstract: Methods, systems, and apparatuses are provided for transmitting a User Equipment (UE) triggered report in a wireless communication system, with a method comprising receiving a configuration of at least one condition to trigger a report by the UE, wherein the report is an Li report or a Medium Access Control (MAC) Control Element (CE), receiving a first Downlink (DL) signal activating more than one joint or DL Transmission Configuration Indication (TCI) states, and triggering the report based on a first condition of the at least one condition being fulfilled, wherein: the first condition includes that: a Reference Signal Received Power (RSRP) of one or more candidate beams is with an offset better than an RSRP of a first current beam, or a number of instances, that the RSRP of the one or more candidate beams is with the offset better than the RSRP of the first current beam, exceeds or reaches a maximum number, and wherein: the UE determines the RSRP of the first current beam based on measurement of a first Ref

Abstract: Methods and apparatuses are provided for power headroom report regarding multiple TRPs in a wireless communication system. The systems and methods of the present invention address, expand, and improve how networks perform power control on multiple TRPs, how networks manage power control for uplink transmissions for different links, and how a UE derives one or more PH/PHR for different links.

Abstract: Methods, systems, and apparatuses are provided for handling timing advance for cells in a wireless communication system, comprising a User Equipment (UE) receiving a configuration indicating at least one candidate cell including a first candidate cell, storing a first Timing Advance (TA) associated with the first candidate cell, and clearing or discarding the first TA associated with the first candidate cell in response to at least one of: expiry of a timer associated with the first TA; performing Radio Resource Control (RRC) re-establishment; the UE entering RRC_IDLE state or RRC_INACTIVE state; a serving cell change; and/or the UE storing a second TA when a list or a set of stored TAs for the at least one candidate cell is full.

Abstract: Methods, systems, and apparatuses are provided for enhancing timing alignment for uplink (UL) multi-Transmission/Reception Point (TRP) (or mTRP) scenarios in a wireless communication system. A method for a UE in a wireless communication system can comprise receiving a signaling, wherein the signaling indicates activation for a first TRP and/or is a Physical Downlink Control Channel (PDCCH) signal, determining to perform a first random access procedure on the first TRP, based on the signaling, to obtain a first Time Alignment (TA) information associated with the first TRP, and performing multi-TRP operation on the first TRP associated with the first TA information and a second TRP associated with a second TA information.

Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), the UE receives one or more signals indicative of a first Physical Uplink Shared Channel (PUSCH) and a second PUSCH on a first cell and in a Transmission Time Interval (TTI). The UE determines to transmit a first Uplink Control Information (UCI) in the TTI, wherein the first UCI overlaps with the first PUSCH and the second PUSCH in time domain. The UE selects the first PUSCH for multiplexing the first UCI based on whether the UE is configured with joint Hybrid Automatic Repeat Request (HARQ) feedback mode or separate HARQ feedback mode. The UE transmits the first PUSCH and the second PUSCH on the first cell, wherein the first PUSCH transmitted on the first cell includes the first UCI.

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 not indicative of a 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.

Abstract: A method and device are disclosed from the perspective of a User Equipment (UE). In one embodiment, the UE initiates a Small Data Transmission (SDT) procedure in RRC_INACTIVE state. Furthermore, the UE transmits a Radio Resource Control (RRC) message to network in response to arrival of a first data, to be transmitted to the network, during the SDT procedure, wherein the first data is not allowed to be transmitted via the SDT procedure.

Abstract: A method a User Equipment (UE) can comprise receiving a configuration of a first Discontinuous Reception (DRX) timer with a value in number of symbols, receiving a configuration of a second DRX timer with a value in number of slot lengths, transmitting, via a Sidelink (SL) Hybrid Automatic Repeat Request (HARQ) process, a first SL transmission associated with SL configured grant Type 1, starting the first DRX timer for the SL HARQ process in response to the first SL transmission, wherein the UE determines a first symbol length associated with the first DRX timer based on a symbol length of an active Downlink (DL) Bandwidth Part (BWP) of a Primary Cell (PCell), starting the second DRX timer for the SL HARQ process in response to expiration of the first DRX timer which was started in response to the first SL transmission, wherein the UE determines a first slot length associated with the second DRX timer based on a slot length of the active DL BWP of the PCell, and monitoring Physical Downlink Control Channel (P

Abstract: Methods and apparatuses are provided for power headroom report regarding multiple TRPs in a wireless communication system. The systems and methods of the present invention address, expand, and improve how networks perform power control on multiple TRPs, how networks manage power control for uplink transmissions for different links, and how a UE derives one or more PH/PHR for different links.

Abstract: A method a User Equipment (UE) can comprise receiving a configuration of a first Discontinuous Reception (DRX) timer with a value in number of symbols, receiving a configuration of a second DRX timer with a value in number of slot lengths, transmitting, via a Sidelink (SL) Hybrid Automatic Repeat Request (HARQ) process, a first SL transmission associated with SL configured grant Type 1, starting the first DRX timer for the SL HARQ process in response to the first SL transmission, wherein the UE determines a first symbol length associated with the first DRX timer based on a symbol length of an active Downlink (DL) Bandwidth Part (BWP) of a Primary Cell (PCell), starting the second DRX timer for the SL HARQ process in response to expiration of the first DRX timer which was started in response to the first SL transmission, wherein the UE determines a first slot length associated with the second DRX timer based on a slot length of the active DL BWP of the PCell, and monitoring Physical Downlink Control Channel (P

Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), the UE receives, from a first cell, a first signaling indicative of a configuration of a Physical Downlink Control Channel (PDCCH) of a second cell. The UE receives, from the first cell, a second signaling indicative of switching a Special Cell (SpCell) of the UE to the second cell, wherein the second signaling includes a PDCCH signaling and/or a Medium Access Control (MAC) Control Element (CE). The UE monitors the PDCCH of the second cell in response to receiving the second signaling.

Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE) with a first Universal Subscriber Identity Module (USIM) and a second USIM, the UE establishes a connection associated with the first USIM, wherein a UE state corresponding to the first USIM enters connected state. The UE stops monitoring paging in a serving cell for the second USIM based on a time domain pattern derived using a second UE Identifier (UE ID) associated with the second USIM, wherein the stopping monitoring paging is performed when the UE state corresponding to the first USIM is connected state and a UE state corresponding to the second USIM is idle state or inactive state. The UE receives, in a serving cell for the first USIM from a network node, an indication associated with activity for the second USIM via the connection associated with the first USIM.

Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), the UE receives, from a first cell, a first signaling indicative of one or more random access resources of a second cell. The UE receives, from the first cell, a second signaling indicative of switching a Special Cell (SpCell) of the UE to the second cell, wherein the second signaling comprises at least one of a Physical Downlink Control Channel (PDCCH) signaling or a Medium Access Control (MAC) Control Element (CE). The UE initiates a random access procedure on the second cell in response to receiving the second signaling, wherein the random access procedure is performed by the UE using the one or more random access resources.

Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), the UE receives one or more signals indicative of a first Physical Uplink Shared Channel (PUSCH) and a second PUSCH on a first cell and in a Transmission Time Interval (TTI). The UE determines to transmit a first Uplink Control Information (UCI) in the TTI, wherein the first UCI overlaps with the first PUSCH and the second PUSCH in time domain. The UE selects the first PUSCH for multiplexing the first UCI based on whether the UE is configured with joint Hybrid Automatic Repeat Request (HARQ) feedback mode or separate HARQ feedback mode. The UE transmits the first PUSCH and the second PUSCH on the first cell, wherein the first PUSCH transmitted on the first cell includes the first UCI.