Abstract: Beam determination and beam activation may be used in wireless communications. An initial (e.g., default) TCI state pool, of a plurality of TCI state pools, may be used to receive one or more messages indicating a second TCI state pool for communicating signals between a wireless device and a base station. The one or more messages may comprise an indication of a TCI state pair (e.g., an uplink TCI state and a downlink TCI state) of the second TCI state pool.

Abstract: A display apparatus includes a first substrate including a plurality of pixel areas provided in a display portion, a second substrate coupled to the first substrate, and a routing portion disposed on an outer surface of the first substrate and an outer surface of the second substrate. The first substrate includes a dam pattern disposed along an edge of the display portion, a light emitting device layer including a light emitting device disposed on the dam pattern and in the plurality of pixel areas, and a trench pattern portion disposed near the dam pattern. The light emitting device is isolated by the trench pattern portion.

Abstract: A wireless device includes one or more processors and memory storing instructions that, when executed by the one or more processors, cause the wireless device to transmit, to a base station, a radio resource control (RRC) message including information of radio access capabilities of the wireless device, wherein the information, per frequency band, includes a first parameter indicating whether the wireless device supports skipping physical downlink control channel (PDCCH) monitoring for power saving operations and a second parameter indicating whether the wireless device supports switching PDCCH monitoring among search space groups (SSGs) for the power saving operations.

Abstract: A wireless device receives receive, from a base station, radio resource control messages comprising configuration parameters of a first semi-persistent scheduling (SPS) for multicast and broadcast services (MBS), wherein the configuration parameters of the first SPS comprise a first hybrid automatic repeat request acknowledgment (HARQ-ACK) codebook index. The wireless device receives a multicast transport block (TB) based on receiving a group common downlink control information (DCI) indicating an activation of the first SPS. The wireless device transmits first feedback for the multicast TB in a first HARQ-ACK codebook, of HARQ-ACK codebooks, indicated by the first HARQ-ACK codebook index.

Abstract: A wireless device receives parameters, including a first discontinuous reception (DRX) configuration associated with unicast transmissions in a cell and a second DRX configuration associated with multicast and broadcast services (MBS) in the cell. The wireless device may also receive a power saving (PS) indication indicating not to start a DRX on duration timer. The PS indication may be applied for the first DRX configuration; and it may not be applied for the second DRX configuration. The wireless device may further skip monitoring, in a first DRX on duration of the first DRX configuration, first physical downlink control channels (PDCCHs) for the unicast transmissions based on receiving the PS indication. The wireless device may also monitor, in a second DRX on duration of the second DRX configuration and while skipping monitoring the first PDCCHs in the first DRX on duration, second PDCCHs for the MBS.

Abstract: A wireless device comprises one or more processors and memory storing instructions that, when executed by the one or more processors, cause the wireless device to: in response to a timer, for switching physical downlink control channel (PDCCH) monitoring from a first search space group (SSG) of a bandwidth part (BWP) to a second SSG of the BWP, expiring in a slot within a time duration for skipping PDCCH monitoring on the BWP, start to monitor PDCCH on the second SSG no earlier than an expiration of the time duration.

Abstract: A base station and/or a wireless device may communicate using a plurality of wireless resources. Multiple carriers may be used for a transmission such that portions of the transmission may be transmitted using different carriers. Multiple carrier transmission may be independently configured for each of a plurality of wireless resources.

Abstract: A base station may transmit, to a wireless device, one or more radio resource control (RRC) messages comprising configuration parameters of a multicast and broadcast service (MBS). The configuration parameters may comprise parameters of a semi-persistent scheduling (SPS) and at least one indicator, for the SPS, indicating a feedback type from a plurality of feedback types. The plurality of feedback types may comprise acknowledgement-negative acknowledgement (ACK-NACK) feedback, negative acknowledgement only (NACK-only) feedback, and disabled feedback. The base station may transmit, to the wireless device, a downlink control information (DCI) indicating an activation of the SPS. The base station may transmit, to the wireless device via downlink assignments of the SPS, one or more transport blocks (TBs) of the MBS. The base station may receive, from the wireless device based on the feedback type indicated by the at least one indicator, feedback information for the one or more TBs.

Abstract: A wireless device receives, from a base station, at least one radio resource control (RRC) message comprising first configuration parameters for a first bandwidth part (BWP) of a first cell, of the base station, that is configured as a serving cell, second configuration parameters of resources of a second cell that is configured as resources of the first BWP of the first cell, and a first time value of a first inactivity timer for the first BWP of the first cell. The wireless device restarts the first inactivity timer for the first BWP of the first cell, in response to communicating a transport block via a configured grant resource of the second cell.

Abstract: A magnetic bearing control apparatus includes a plurality of output elements configured to generate electromagnetic force, a magnetic bearing configured to float a rotation shaft from a surface of the magnetic bearing based on the electromagnetic force generated by the plurality of output elements, at least one displacement sensor configured to sense a displacement of the rotation shaft, and a controller. The controller is configured to control a current supplied to the plurality of output elements, to control a position of the rotation shaft based on the current supplied to the plurality of output elements according to the displacement of the rotation shaft, and to determine a failure of the displacement sensor.

Abstract: The present disclosure relates to a chiller. A compressor driver includes: a compressor including a compressor motor and a magnetic bearing; a coil driver including a switching element and to apply a current to a bearing coil of the magnetic bearing by a switching operation of the switching element to cause a rotor of the compressor motor to be levitated from or land on the magnetic bearing; and a controller to control the switching element of the coil driver, wherein, when the rotor of the compressor motor lands, the controller is configured to gradually decrease the current flowing through the bearing coil. Accordingly, damage to the rotor of the compressor motor can be prevented when the compressor motor is stopped in a magnetic levitation system.

Abstract: A magnetic bearing control apparatus includes a plurality of output elements configured to generate electromagnetic force, a magnetic bearing configured to float a rotation shaft from a surface of the magnetic bearing based on the electromagnetic force generated by the plurality of output elements, at least one displacement sensor configured to sense a displacement of the rotation shaft, and a controller. The controller is configured to control a current supplied to the plurality of output elements, to control a position of the rotation shaft based on the current supplied to the plurality of output elements according to the displacement of the rotation shaft, and to determine a failure of the displacement sensor.

Abstract: The present disclosure relates to a chiller. A compressor driver includes: a compressor including a compressor motor and a magnetic bearing; a coil driver including a switching element and to apply a current to a bearing coil of the magnetic bearing by a switching operation of the switching element to cause a rotor of the compressor motor to be levitated from or land on the magnetic bearing; and a controller to control the switching element of the coil driver, wherein, when the rotor of the compressor motor lands, the controller is configured to gradually decrease the current flowing through the bearing coil. Accordingly, damage to the rotor of the compressor motor can be prevented when the compressor motor is stopped in a magnetic levitation system.

Abstract: A power converter and an air conditioner having the same, in which the power converter includes a rectifying unit configured to rectify an input AC current and an interleave converter that has a plurality of converters and that is configured to convert rectified output from the rectifying unit to DC power and output the converted DC power. The power converter also includes a capacitor connected to an output terminal of the interleave converter, and a converter controller configured to control the interleave converter. The converter controller controls the interleave converter by calculating a load level of both terminals of the capacitor and changing a number of operating converters in the plurality of converters of the interleave converter based on the determined load level of both terminals of the capacitor.

Abstract: A power converter and an air conditioner having the same, in which the power converter includes a rectifying unit configured to rectify an input AC current and an interleave converter that has a plurality of converters and that is configured to convert rectified output from the rectifying unit to DC power and output the converted DC power. The power converter also includes a capacitor connected to an output terminal of the interleave converter, and a converter controller configured to control the interleave converter. The converter controller controls the interleave converter by calculating a load level of both terminals of the capacitor and changing a number of operating converters in the plurality of converters of the interleave converter based on the determined load level of both terminals of the capacitor.