Abstract: A method and apparatus are disclosed from the perspective of a User Equipment (UE). In one embodiment, the UE performs an Uplink (UL) transmission of an UL signal to a base station in an UL subframe wherein the UL subframe begins at a timing derived based on an absolute time.

Abstract: A method and apparatus for handling transmission in a wireless communication system. In one embodiment, the method includes initiating a RA procedure, by a UE, in a serving cell. The method also includes deciding whether to transmit a RA Preamble, by the UE, in the serving cell at a specific timing during the RA procedure based on at least one information that includes beam(s) (or beam group(s)) of the serving cell detected by the UE.

Abstract: A method and apparatus for improving beam finding in a wireless communication system. In one embodiment, the method includes the base station detecting a first preamble transmission from a UE on a beam. The method also includes the base station examining extra transmissions to detect whether there are other beams which can be used to communicate with the UE. The method further includes the base station considering a beam set of the UE is complete if a rule is fulfilled, wherein the beam set of the UE includes beam(s) through which the UE could communicate with the base station.

Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), the UE may receive a configured grant. The UE may receive a Random Access Response (RAR) grant, wherein a first Physical Uplink Shared Channel (PUSCH) of the RAR grant overlaps with a second PUSCH of the configured grant. The UE may transmit the second PUSCH based upon the configured grant.

Abstract: A method and apparatus for beam detection in a wireless communication system. In one embodiment, the method includes the UE initiating a RA procedure. The method also includes the UE transmitting multiple RA preambles to a base station of the cell at different occasions for the base station to determine a beam set of the UE. The method further includes the UE starts monitoring a PDCCH for RA response reception from the base station after finishing transmissions of the multiple RA preambles.

Abstract: A method and apparatus for implementing reference signal transmissions in a wireless communication system. In one embodiment, the method includes the cell, transmission point (TP), or transmission and reception point (TRP) broadcasting a first RS periodically for measurement, wherein the first RS is transmitted at multiple occasions (or timings) in each period on different beams. The method also includes the cell, TP, or TRP transmitting a second RS to a UE for PDCCH demodulation, wherein the second RS is transmitted on multiple beams in a beam set of the UE in a subframe (or symbol) in which the PDCCH is transmitted.

Abstract: Methods and apparatuses for triggering a power headroom report for beam operation in a wireless communication system are disclosed herein. In one method, a user equipment (UE) uses multiple beams for transmission. The UEtriggers a power headroom report due to a change of a pathloss being larger than a threshold, wherein the pathloss is associated with a specific beam or a set of beams.

Abstract: A method and apparatus are disclosed from the perspective of an User Equipment (UE). In one embodiment, the method includes the UE deriving a first pathloss value from a first pathloss reference of a serving cell, wherein the first pathloss value is used for deriving a power headroom value included in a first power headroom report. The method also includes the UE deriving a second pathloss value from a second pathloss reference of the serving cell after deriving the first pathloss value, wherein the second pathloss reference is used for power control for a first Physical Uplink Shared Channel (PUSCH) transmission on the serving cell. The method further includes the UE deriving the pathloss change based on the first pathloss value and the second pathloss value. In addition, the method includes the UE determining whether a second power headroom report is triggered based on whether the pathloss change is more than a threshold.

Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), the UE receives a Downlink Control Information (DCI) format from a base station. The UE applies a timing offset to information indicated by the DCI format.

Abstract: A method and apparatus are disclosed from the perspective of a UE. In one embodiment, the method includes the UE receiving a configuration which indicates functionalities of each symbol within a set of symbols. The method also includes the UE determining a slot structure for a slot according to a group common PDCCH associated with the slot and the configuration.

Abstract: Methods and apparatuses for providing control resource set configuration in a wireless communication system are disclosed herein. In one method, a network node transmits a signal indicating at least a first duration and a bit map, wherein the first duration is time duration of a control resource set (CORESET) and the bit map indicates first symbol(s) of monitoring occasion(s) of the CORESET within a slot, and wherein a set of bit position indicates value one in the bit map. The network node is not allowed to transmit the signal such that an interval between two bit positions in the set in the bit map is smaller than a second duration.

Abstract: Methods and apparatuses for providing control resource set configuration in a wireless communication system are disclosed herein. In one method, a network node transmits a signal indicating at least a first duration and a bit map, wherein the first duration is time duration of a control resource set (CORESET) and the bit map indicates first symbol(s) of monitoring occasion(s) of the CORESET within a slot, and wherein a set of bit position indicates value one in the bit map. The network node is not allowed to transmit the signal such that an interval between two bit positions in the set in the bit map is smaller than a second duration.

Abstract: A method and apparatus are disclosed from the perspective of a network. In one embodiment, the method includes the network configuring a UE (User Equipment) with a plurality of DL (Downlink) BWPs (Bandwidth Parts) of a serving cell, wherein the plurality of DL BWPs comprises a first DL BWP with a first SCS (Sub-Carrier Spacing) and a second DL BWP with a second SCS, wherein the second SCS is different from the first SCS. The method further includes the network configuring the UE with a first monitoring occasion for indicating slot format indication (SFI) in the first DL BWP by indicating a first slot offset and a first slot periodicity.

Abstract: A method and apparatus are disclosed from the perspective of a network. In one embodiment, the method includes the network configuring a first serving cell and a second serving cell to a UE, wherein a first PDCCH scheduling a first PDSCH on the first serving cell and a second PDCCH scheduling a second PDSCH on the second serving cell are transmitted via a CORESET of the second serving cell. The method further includes the network not configuring a CORESET configuration for the first serving cell. Furthermore, the method includes the network indicating the UE to receive and/or monitor the first PDCCH based on CORESET configuration of the second serving cell.

Abstract: Methods and apparatuses for downlink data buffering considering cross carrier scheduling in a wireless communication system are disclosed herein. In one method, the UE receives configuration of a first serving cell and a second serving cell from a network. The UE receives and/or monitors a first PDCCH transmitted on a scheduling CORESET of the second serving cell, wherein the first PDCCH schedules a first PDSCH transmitted on the first serving cell. The UE receives and/or monitors a second PDCCH transmitted on a scheduling CORESET of the second serving cell, wherein the second PDCCH schedules a second PDSCH transmitted on the second serving cell. The UE receives and/or buffers the second PDSCH via a TCI state used for PDCCH quasi co-location indication of the CORESET with the lowest CORESET-ID in the latest slot in which one or more CORESETs are configured for the UE, before the UE decodes successfully the second PDCCH.

Abstract: A method and apparatus for beam detection in a wireless communication system. In one embodiment, the method includes the UE initiating a RA procedure. The method also includes the UE transmitting multiple RA preambles to a base station of the cell at different occasions for the base station to determine a beam set of the UE. The method further includes the UE starts monitoring a PDCCH for RA response reception from the base station after finishing transmissions of the multiple RA preambles.

Abstract: Methods and apparatuses for determining numerology bandwidth in a wireless communication system are disclosed herein. In one method, a user equipment receives information for a numerology. The information comprises a frequency location and a bandwidth. The UE derives a resource allocation for the numerology based on the frequency location and the bandwidth.

Abstract: A method and apparatus are disclosed from the perspective of a UE. In one embodiment, the method includes the UE receiving a configuration which indicates functionalities of each symbol within a set of symbols. The method also includes the UE determining a slot structure for a slot according to a group common PDCCH associated with the slot and the configuration.

Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), the UE receives an indication from a base station, wherein the indication is indicative of monitoring a power saving signal in one or more monitoring occasions and at least one monitoring occasion of the one or more monitoring occasions is associated with a Discontinuous Reception (DRX) ON duration and is within Active Time associated with the UE. The UE does not monitor and/or skips monitoring the power saving signal in the at least one monitoring occasion. The UE monitors Physical Downlink Control Channel (PDCCH) during the DRX ON duration.

Abstract: Techniques for receiving control channel for multiple numerologies are disclosed. The UE receives a control channel by using a first numerology and receives a first data channel information by using a second numerology. The UE also receives a second data channel information by using the first numerology.