Abstract: Methods and apparatuses for a bit compression of uplink fronthaul data in wireless communication systems are provided. The methods of UE comprise: identifying uplink fronthaul data to reduce a data load on an uplink fronthaul link, wherein the uplink fronthaul link is between the RU and a DU; processing the uplink fronthaul data to obtain a set of representative values for a compression operation; selecting, based on the set of representative values, at least one encoding parameter for the compression operation; and transmitting, to the DU, the uplink fronthaul data that is compressed based on the compression operation.

Abstract: The disclosed technology can include three dimensional (3D) beamforming for joint phase-time arrays (JTPAs). In some embodiments, a method for operating a BS is provided. The method includes receiving information from a plurality of user equipment (UEs) and identifying, based on the received information, azimuth and elevation information associated with the UEs. The method further includes determining at least two UEs of the plurality of UEs to serve based at least in part on the azimuth and elevation information of the at least two UEs, respectively, determining bandwidth allocations for the at least two UEs, respectively, and determining joint-phase-time array (JPTA) beams for the at least two UEs, respectively, based on the bandwidth allocations and the azimuth and elevation information of the at least two UEs, respectively. The method further includes transmitting information on the JPTA beams to the at least two UEs, respectively.

Abstract: Methods and apparatuses for frequency selective beam management. A method performed by a user equipment (UE) includes receiving first information related to a plurality of frequency subbands and receiving, in a first part of a downlink control information (DCI), at least one first transmission configuration indication (TCI) state and second information related to a second part of the DCI. The method further includes determining, based on the first information, a first association between the plurality of frequency subbands and the at least one first TCI state; for a first frequency subband from the plurality of frequency subbands, determining a first TCI state based on the first association; and identifying, based on the determined first TCI state, a spatial domain filter for transmitting or receiving UE-dedicated channels or signals for the first frequency subband.

Abstract: A display device capable of reducing a non-display area is disclosed. The disclosed display device includes a first through hole not overlapping with an organic cover layer surrounding at least one hole area disposed within an active area, and a second through hole passing through a substrate. Accordingly, it is possible to minimize a bezel area, which is a non-display area, and to prevent damage to a light emitting stack caused by a stripping process.

Abstract: A method includes determining a beam measurement periodicity for beam reporting by a user equipment (UE) for use in beam tracking. The method also includes performing beam tracking according to the beam measurement periodicity. The method also includes adaptively increasing or decreasing the beam measurement periodicity based on information related to at least one of a UE measurement report, a current network state, a UE state, or a previously observed network behavior. The method also includes performing additional beam tracking according to the adaptively increased or decreased beam measurement periodicity.

Abstract: An apparatus includes a first, second, and third substrates. The first substrate includes a first antenna element supporting a first frequency band and a second frequency band higher than the first frequency band. The first substrate includes a first dielectric material having a first dielectric constant. The second substrate includes a second antenna element supporting the first frequency band and the second frequency band. The second substrate includes the first dielectric material. The third substrate is disposed between the first substrate and the second substrate and includes a third antenna element supporting the second frequency band. The third substrate includes a second dielectric material having a second dielectric constant lower than a first dielectric constant. The first and second antenna elements form a first beam in the first frequency band. The first, second, and third antenna elements form a second beam in the second frequency band.

Abstract: Apparatuses and methods for enhancing SSB coverage. A method performed by a base station includes transmitting, in a synchronization signal block (SSB) burst, a first SSB signal and one or more repetitions of the first SSB signal. The first SSB signal and the one or more repetitions of the first SSB signal are distinguished based on an indicative signal.

Abstract: A method of user equipment (UE) for random access operation in a wireless communication system is provided. The method comprises receiving, from a base station (BS), random access channel (RACH) configuration information including RACH chunk information corresponding to at least one antenna beam including a beam identifier (ID), determining a RACH chunk based on the RACH configuration information received from the BS, transmitting, to the BS, a RACH preamble on the determined RACH chunk according to the RACH configuration information associated with the beam ID, and receiving, from the BS, a RACH response (RAR) corresponding to the transmitted RACH preamble and a downlink channel for a RAR transmission, wherein a random access-radio network temporary identification (RA-RNTI) is calculated based on an index of a slot and an index of the RACH chunk on which the RACH preamble is transmitted.

Abstract: Methods and apparatuses for a transmission setting indication for switching operation zones in wireless communication systems are provided.

Abstract: Method and apparatuses for scheduling and beam design in joint phase time arrays (JPTAs). In another embodiment, a method for operating a base station (BS) is provided. The method includes identifying a set of user equipments (UEs) to schedule, a plurality of resource blocks (RBs), and a UE beam map. The UE beam map maps one or more beams from a plurality of beams to one or more UEs in the set of UEs. The method further includes allocating, for a UE in the set of UEs, one or more RBs from the plurality of RBs based the UE beam map and a beam gain on the one or more RBs in a direction of the UE. The method further includes determining a JPTA beam for the UE. The method further includes transmitting scheduling information indicating the allocated one or more RBs and the determined one or more JPTA beams.

Abstract: A method includes selecting, by a base station, a partial search set based on one or more previous measurement reports from a user equipment (UE), the partial search set comprising a set of narrow beams that is a subset of an extended search set associated with an extended search. The method also includes performing, by the base station, a beam tracking search that sweeps the partial search set in order to select a next narrow beam. The method further includes communicating with the UE using the selected next narrow beam.

Abstract: A method includes selecting a set of orthogonal beams to be used for SRS full-channel reconstruction in a multi-user multiple-input multiple-output (MU-MIMO) system. The method also includes generating an analog precoding matrix for hybrid analog-digital precoding in the MU-MIMO system. The method further includes communicating with multiple users using the MU-MIMO system and the analog precoding matrix.

Abstract: A hybrid MIMO system comprises N digital transceiver chains and N analog beamformers, each coupled to one of the digital transceiver chains and comprising M analog transmitter (TX) chains and M analog receiver (RX) chains. One of the analog RX chains is an RX reference node and one of the analog TX chains is a TX reference node. A processor is coupled to a calibration transceiver, the transceiver chains, and the beamformers. For each beamformer the processor measures, using the corresponding transceiver chain and the calibration transceiver, TX and RX phase responses and TX and RX magnitude responses of the TX and RX reference nodes, respectively, determines a reciprocity calibration based on a phase difference between the TX and RX phase responses and a magnitude difference between the TX and RX magnitude responses, and applies the reciprocity calibration to stored beam definitions to correct for the phase and magnitude differences.

Abstract: Methods and apparatuses for channel state information reference signal in wireless communication systems are provided. The methods of BS comprise: identifying first information corresponding to a number of antenna ports associated with transmissions of CSI-RSs; identifying, a first size of CDM groups associated with the number of antenna ports and a first shape of the CDM groups; identifying second information from the first information; identifying a starting SC index and a starting symbol index; identifying, based on the number of antenna ports associated with a CSI-RS transmission and a predetermined frequency domain granularity of channel state information, a size of RB cluster for the resource allocation; and transmitting, to a UE, resource configuration information indicating at least one of the size of RB cluster, the first size of the CDM groups, the first shape of the CDM groups, the starting SC index, and the starting symbol index.

Abstract: Scalable 2D joint phase-time arrays (JPTA) support multiple simultaneous RF beams without sacrificing array gain. A 2D JPTA comprises M antenna groups that each comprise N antennas, each coupled to one of N phase shifters. The array comprises M delay elements configured to: apply a time delay to a first signal to be transmitted by one of the antenna groups while each phase shifter in the group phase shifts the time-delayed first signal and feeds the phase-shifted-and-time-delayed first signal to the corresponding antenna, or apply the time delay to a second signal received from the group while each phase shifter phase shifts a third signal received from the antenna, the second signal being a combination of the phase-shifted third signals. The time delays produce a beam spread in a first dimension of the array such that multiple beams are formed in different directions.

Abstract: A method of a user equipment (UE) for control resource set (CORESET) configuration in a wireless communication system is provided. The method comprises receiving, from a base station (BS), system information, determining whether the system information includes a random access channel (RACH) CORESET configuration, determining a CORSET to use for transmitting data based on whether the RACH CORESET configuration is included in the system information, and receiving, from the BS, the data based on the determined CORESET over an RACH.

Abstract: A distributed unit (DU) includes a processor and a transceiver operatively coupled to the processor. The transceiver is configured to transmit information indicating a plurality of candidate combining methods, and receive a compressed signal. The compressed signal is based on at least one of the candidate combining methods. The transceiver is further configured to receive, from a radio unit (RU), information indicating a combining method supported by the RU, from the plurality of candidate combining methods and transmit information indicating combining weights for the candidate combining method.

Abstract: Methods and apparatuses for transmitting and receiving measurement reference signal (MRS) configurations in a wireless communication system. A method includes transmitting to a user equipment (UE), or receiving from a base station, information on MRS configurations that include information on an identity of an MRS, information on a set of large-scale channel properties associated with a quasi co-location (QCL) relationship for a demodulation reference signal (DMRS) of a physical downlink shared channel (PDSCH), and information on a bandwidth for the MRS. The method further includes transmitting to the UE, or receiving from a base station, downlink control information (DCI) scheduling the PDSCH and indicating an MRS configuration for the PDSCH. The set of large-scale channel properties include, based on type, one or more of doppler shift, doppler spread, average delay, and delay spread.

Abstract: A method includes logically partitioning an antenna panel of a base station into multiple subpanels. The method also includes identifying multiple user groups for multi-user multiple-input multiple-output (MU-MIMO) spatial multiplexing, each user group comprising one or more user equipments (UEs). The method also includes assigning the user groups to the subpanels. The method also includes transmitting to the UEs via the subpanels, wherein each user group is served by one subpanel of the multiple subpanels.

Abstract: A method and apparatus provide a user equipment (UE) configured to communicate with a plurality of carrier aggregation (CA) groups with at least a first CA group (CG1) and a second CA group (CG2). The UE includes processing circuitry. The processing circuitry is configured to determine whether the UE is power-limited. The UE is scheduled to transmit acknowledged information in a physical uplink shared channel (PUSCH) to a cell of the CG1 and uplink control information (UCI), other than the acknowledgement information, in a physical uplink control channel (PUCCH) to a cell of the CG2. The processing circuitry is also configured to, responsive to the UE being power-limited, prioritize the PUSCH for power allocation. The processing circuitry is also configured to transmit the PUSCH to the cell of the CG1.