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 user equipment (UE) and a method for wireless communication are provided. The method includes: receiving a radio resource control (RRC) configuration from a base station (BS); determining whether a first parameter is configured in the RRC configuration; receiving first downlink control information (DCI) from the BS, the first DCI including a first field indicating a first Hybrid Automatic Repeat Request (HARD) process identifier (ID); determining that a number of bits in the first field is a default number in a case that the first parameter is not configured in the RRC configuration; and determining that the number of bits in the first field is a specific number greater than the default number in a case that the first parameter is configured in the RRC configuration.

Abstract: Various solutions for accessing long periodicity cells for network energy saving with respect to user equipment and network apparatus in mobile communications are described. An apparatus may receive at least one information associated with a long-periodicity (LP) cell from a network node in a normal cell. The apparatus may perform a synchronization signal block (SSB)-based measurement according to the information to detect the LP cell. The apparatus may perform an access procedure with the LP cell.

Abstract: A method and a user equipment are provided. The method includes: receiving a Discontinuous Reception (DRX) configuration, the DRX configuration including a first DRX timer and a second DRX timer; receiving a first Hybrid Automatic Repeat Request (HARQ) configuration, the first HARQ configuration indicating a first state of a first HARQ process; receiving a second HARQ configuration, the second HARQ configuration indicating a second state of a second HARQ process; performing a Downlink (DL) transmission using the first HARQ process; determining whether to start the first DRX timer for the first HARQ process after the DL transmission based on the first state indicated by the first HARQ configuration; performing an Uplink (UL) transmission using the second HARQ process; and determining whether to start the second DRX timer for the second HARQ process after the UL transmission based on the second state indicated by the second HARQ configuration.

Abstract: The disclosure provides a method of channel scheduling for narrowband Internet of Things (NB-IoT) in a non-terrestrial network (NTN) and a user equipment using the same. The method includes: transmitting an uplink signal ending in a first subframe; determining a monitoring window starting from a second subframe according to the first subframe and a time offset; and monitoring a downlink signal corresponding to the uplink signal according to the monitoring window.

Abstract: A communication apparatus includes a low power wakeup receiver (LP-WUR) and a processor. The processor is configured to perform operations including: receiving a modulated signal from a network apparatus via the LP-WUR, wherein the modulated signal has a harmonized design that accommodates overlaid waveforms of one or more modulation schemes; and deriving information bits from demodulating the modulated signal.

Abstract: A method performed by a UE is provided. The method includes receiving DCI on a PDCCH from a BS, the DCI indicating a PDSCH; receiving a MAC CE command on the PDSCH; determining, according to the DCI, whether a HARQ ACK feedback for a data reception on the PDSCH is needed to be transmitted; and applying, after determining that the HARQ ACK feedback is needed to be transmitted, the MAC CE command after a first slot identified by a first value of n+K0+K1+Np+M, where n is an index of a slot in which the DCI is received, K0 and K1 are slot offsets, Np indicates an approximated delay determined by a TA value, and M indicates a processing delay.

Abstract: A method for a UE for performing a HARQ feedback operation for an SPS transmission is disclosed.

Abstract: A communication apparatus includes a low power wakeup receiver (LP-WUR) and a processor. The processor is configured to receive signals from a network apparatus via the LP-WUR, and perform operations including: receiving at least one synchronization signal sent by the network apparatus, wherein the at least one synchronization signal comprises at least one of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS); and using the at least one synchronization signal to detect timing of a low power wakeup signal (LP-WUS).

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a user equipment (UE). The UE receives, from a base station, a low-power radio layer (LPRL) synchronization signal on an LPRL for synchronization and measurement. The UE communicates, on the LPRL, wake-up information or paging information with the base station for subsequent communications on a high-performance radio layer (HPRL). The UE detects, on the HPRL, a signal transmitted from the base station.

Abstract: Examples pertaining to synchronization and radio resource management in mobile communications are described. A user equipment (UE) receives a periodic low power synchronization signal (LP-SS) from a network node via a low-power wake-up receiver (LP-WUR) of the apparatus. Then, the UE performs a synchronization based on the periodic LP-SS via the LP-WUR of the apparatus in an event that a main radio of the apparatus is in a power saving mode. The synchronization comprises at least a coarse time synchronization and a coarse frequency synchronization.

Abstract: Examples pertaining to cell discontinuous transmission (DTX) and user equipment (UE) discontinuous reception (DRX) are described. A UE receives a configuration of a cell DTX from a network node with a cell DTX functionality. The configuration carries information regarding at least one of a periodicity, a start slot or a start offset and an on duration. Then, the UE skips a monitoring activity during one or more non-active periods of the cell DTX of the network node.

Abstract: A method performed by a UE connected to a first cell associated with a first satellite is provided. The method receives a measurement configuration includes a first SMTC and a second SMTC. The first and second SMTCs have at least a first parameter that is common to both first and second SMTCs and a second parameter that is different in each SMTC. The method receives a signal to perform a measurement procedure for a second cell associated with a second satellite. The method performs the measurement procedure based on the received measurement configuration, where the first parameter includes a duration of time that indicates an SMTC window within which at least one of an SSB or a CSI-RS is detectable by the UE to perform the measurement procedure, and the second parameter includes an offset value.

Abstract: A user equipment (UE) includes one or more non-transitory computer-readable media containing computer-executable instructions embodied therein, and at least one processor coupled to the one or more non-transitory computer-readable media. The at least one processor configured to execute the computer-executable instructions to receive downlink control information (DCI) on a downlink (DL) channel of a non-terrestrial network (NTN), the DL channel reception ending in a first slot, and transmit an uplink (UL) transmission on a UL channel of the NTN in a second slot. The second slot is separate from the first slot by a timing offset, where a duration of the timing offset is dependent on a type of the UL transmission and a numerology of the UL transmission.

Abstract: Various solutions for low-power wake-up signal (LP-WUS) monitoring with respect to user equipment and network node in mobile communications are described. An apparatus may receive a configuration from a network node. The apparatus may comprise a main radio (MR) and a lower-power wake-up radio (LP-WUR). The apparatus may determine whether to activate or deactivate a low-power wake-up signal (LP-WUS) monitoring by the LP-WUR according to at least one pre-configured condition in the configuration. The apparatus may receive an LP-WUS from the network node via the LP-WUR in an event that the LP-WUS monitoring is activated.

Abstract: A method and a User Equipment (UE) for beam operations are provided. The method includes monitoring at least one of a plurality of Control Resource Sets (CORESETs) configured for the UE within an active Bandwidth Part (BWP) of a serving cell in a time slot; and applying a first Quasi Co-Location (QCL) assumption of a first CORESET of a set of one or more of the monitored at least one of the plurality of CORESETs to receive a Downlink (DL) Reference Signal (RS), wherein the first CORESET is associated with a monitored search space configured with a lowest CORESET Identity (ID) among the set of one or more of the monitored at least one of the plurality of CORESETs.

Abstract: Various solutions for low-power wake-up signal (LP-WUS) design with respect to user equipment and network node in mobile communications are described. An apparatus may receive a LP-WUS configuration from a network node. The apparatus may receive a LP-WUS based on the LP-WUS configuration from the network node. The apparatus may determine whether to wake up according to the LP-WUS. The LP-WUS with N subcarriers (SCs) is generated through a transformation of M-bit on-off keying (OOK) in a time domain. The transformation is a discrete Fourier transform (DFT) or least square operation. K samples are generated from the M bits with a signal modification or a signal truncation. The LP-WUS is generated through an inverse fast Fourier transform (IFFT) operation. The K is a size of the IFFT operation of cyclic-prefix orthogonal frequency-division multiple access (CP-OFDMA). The N is less than or equal to the K.

Abstract: A method for a user equipment (UE) connected to a serving cell associated with a first satellite is provided. The method receives a measurement configuration including a plurality of synchronization signal block (SSB) measurement timing configurations (SMTCs). Each SMTC may have at least one offset value and a first SMTC in the plurality of SMTCs has a first offset value that is different from a second offset value of a second SMTC of the plurality of SMTCs. The method further receives a signal to perform a measurement procedure for a second cell associated with a second satellite and performs the measurement procedure based on the received plurality of SMTCs.

Abstract: Examples pertaining to reference signal (RS) enhancements in mobile communications are described. An apparatus (e.g., a user equipment (UE)) may receive a minimum broadcast RS from a network node (e.g., a base station (BS)). Based on the minimum broadcast RS, the apparatus may perform basic downlink (DL) measurement. The apparatus may also receive or transmit an on-demand RS from or to the network node in a case that a triggering condition is fulfilled. Based on the on-demand RS, the apparatus may perform additional DL or uplink (UL) measurement.

Abstract: Various solutions for cell reselection for network energy saving with respect to user equipment and network apparatus in mobile communications are described. An apparatus may receive a network energy saving assistant information (NESAI) from a network node. The NESAI may comprise a cell barred field or a cell reservation field for network energy saving (NWES) configured to differentiate between non-NES user equipments (UEs) and NES-capable UEs. The apparatus may perform a cell reselection for a network energy saving (NES) cell based on the NESAI.