Abstract: Provided are a method for indicating reference signal configuration information, a base station and a terminal. The method includes that a first communication node determines joint signaling and the first communication node transmits the joint signaling to a second communication node. The joint signaling includes first information and second information. The first information includes at least one of the following: quasi-colocation configuration information and configuration information of a transmission beam. The second information includes at least one of the following: configuration information of a phase tracking reference signal and configuration information of a demodulation reference signal.

Abstract: Provided are a method and device for determining a reference timing, a storage medium and an electronic device. The method comprises: a second node determining a reference timing of the second node by using at least one of the following modes: an open-loop mode, a closed-loop mode and an external synchronization source mode. By means of the present disclosure, the problem in the related art that there is no technical solution for setting a reference timing between each-hop links yet exists is solved.

Abstract: An aperture unit having an optical axis is provided, which includes a fixed portion having a first surface and an opening, a guiding element movably connected to the fixed portion and accommodated in the first accommodating space, a first blade movably connected to the guiding element and the fixed portion, and a driving assembly used for driving the guiding element to move for moving the first blade. A first accommodating space having a recessed structure is formed on the first surface. The opening is formed in the first accommodating space and has a recessed structure. The driving assembly is at least partially disposed in the opening.

Abstract: An aperture unit having an optical axis is provided, which includes a fixed portion having a positioning recess, a guiding element movably connected to the fixed portion and accommodated in the first accommodating space, a first blade movably connected to the guiding element and the fixed portion, and a driving assembly used for driving the guiding element to move for moving the first blade. The positioning recess corresponds to the guiding element and is used for limiting a movable range of the guiding element.

Abstract: An aperture unit having an optical axis is provided, which includes a fixed portion having a first surface and including a protrusion formed on the first surface, a guiding element movably connected to the fixed portion and including a through hole, a first blade movably connected to the guiding element and the fixed portion, and a driving assembly use for driving the guiding element to move for moving the first blade. The optical axis passes through the through hole. The first surface has a first accommodating space having a recessed structure to accommodate the guiding element, and the protrusion extends toward the first blade.

Abstract: An optical system is provided, which includes a holder used for connecting an aperture unit, a bottom, a second driving assembly used for driving the holder to move, an upper spring disposed on the holder, and an aperture unit disposed on the holder and comprising a third driving assembly used for controlling a size of an aperture opening. The holder is movable relative to the bottom. The third driving assembly is electrically connected to the upper spring.

Abstract: An aperture unit having an optical axis is provided, which includes a fixed portion, a guiding element movably connected to the fixed portion, a first blade movably connected to the guiding element and the fixed portion, a driving assembly used for driving the guiding element to move for moving the first blade, a circuit assembly electrically connected to the driving assembly, and a bottom plate disposed on the circuit assembly and including metal.

Abstract: An aperture unit having an optical axis is provided, which includes a fixed portion comprising a sidewall, a guiding element movably connected to the fixed portion, a first blade movably connected to the guiding element and the fixed portion, and a sliding element. The sidewall has a recessed portion having a recessed structure. The sliding element is at least partially accommodated in the recessed portion, and the guiding element is movable relative to the fixed portion through the sliding element.

Abstract: A microfluidic particle sorter includes a chip body and at least one sorting unit provided inside the chip body and including a microfluidic channel and at least one first DLD array. The microfluidic channel extends along a length direction, has an inlet and an outlet, and has a first side and a second side. The at least one first DLD array includes first DLD columns arranged along the length direction. The first DLD columns, from the inlet toward the outlet, are gradually shifted toward the second side such that two adjacent ones of the first DLD columns are offset from each other by a predetermined distance. Each of the first DLD columns has first split pillars. Each of the first split pillars has a first upstream side and a first downstream side, and includes two first parts that are spaced apart from each other to define a first micro-gap.

Abstract: This application provides an inter-account interaction method performed by a computer device. The method includes: displaying a battle preparation interface of a virtual battle, the battle preparation interface comprising a first icon representing a first account associated with the computer device and at least one second icon representing an account other than the first account; in response to a trigger operation on one of the at least one second icon as a target icon, displaying a prop selection area on the battle preparation interface and at least one interactive prop owned by the first account in the prop selection area; and in response to a selection of one of the at least one interactive prop as a target interactive prop, playing a target special effect animation of transmitting a special effect resource of the target interactive prop pointing from the first icon to the target icon.

Abstract: A computer-implemented method includes: collecting, by a computing device, database activities and database structure information of a database; identifying, by the computing device, related columns in the database; determining, by the computing device, one or more data types for column transference of the identified related columns; generating, by the computing device, a super union column based on the column transference and the identified related columns; and updating, by the computing device, the database with the super union column.

Abstract: An optical element driving mechanism is provided and includes a fixed assembly, a movable assembly, a driving assembly and a circuit assembly. The movable assembly is configured to connect an optical element, the movable assembly is movable relative to the fixed assembly, and the optical element has an optical axis. The driving assembly is configured to drive the movable assembly to move relative to the fixed assembly. The circuit assembly includes a plurality of circuits and is affixed to the fixed assembly.

Abstract: Provided are techniques for building and using a sparse Time Series Database (TSDB). Time series records are received from a native TSDB, where each of the time series records includes a timestamp and one or more tags. Timeslots are determined for shards for the sparse TSDB based on the timestamp included in each of the time series records. The sparse TSDB is built by creating the shards for the determined timeslots and storing the time series records in the shards, while filling in empty ranges in the shards. A query that specifies at least one of the one or more tags is received. It is determined whether to execute the query against the sparse TSDB, and, in response to a determination to execute the query against the sparse TSDB, the query is executed against the sparse TSDB to generate results that are returned.

Abstract: Embodiments of the present disclosure provides a chip and a method of forming the same and a package structure, the chip includes a base substrate and conductive bumps located on the base substrate, a planar shape of each bump has a long axis and a short axis extending through a center of the bump, a length of the long axis is greater than that of the short axis, the conductive bumps include bump unit rows each of which includes initial bump units arranged along a first direction and a first expanded bump unit located between adjacent initial bump units; the bump unit rows are arranged in a second direction, with a second expanded bump unit disposed between adjacent bump unit rows, the conductive bumps include a first pattern, a second pattern and an additional pattern formed by corresponding bumps, and each having bumps with different rotation angles.

Abstract: The application discloses a signal transmission method and device. The signal transmission method comprises: a first communication node determining a mode for transmitting data in a time unit to a second communication node; and the first communication node transmitting data to the second communication mode in the time unit according to the determined mode for transmitting data. The data includes N data sets, where N is a positive integer. A data transmission method for M data sets in the data is known by the second communication node. Related information of a data transmission method for (N?M) data sets is notified to the second communication node by the first communication node by means of a control signal in the time unit, where M is less than or equal to N.

Abstract: Presented are systems and methods for wireless communication. In one aspect, a wireless communication device determines a first demodulation reference signal (DMRS) table. In one aspect, the wireless communication device receives a value of a field in a signaling from the wireless communication node. In one aspect, the wireless communication device determines a first DMRS parameter according to the first DMRS table and the value of the field. In some embodiments, the first DMRS table includes a mapping between values of the field of the signaling and values of the first DMRS parameter. In some embodiments, the first DMRS table includes the first DMRS parameter, that has values associated with a plurality of categories of DMRS ports. In some embodiments, each category of the plurality of categories of DMRS ports corresponding to a respective one of a plurality of second parameters.

Abstract: The embodiments of the disclosure provides a package structure and a manufacturing method thereof, the package structure includes: a die, including a substrate and a device layer, wherein the substrate has a front side and a back side opposite to each other in a first direction perpendicular to a main surface of the die, and the device layer is at the front side of the substrate; a thermal interface material layer, on the back side of the substrate; and a thermal dissipation component, attached to the die through the thermal interface material layer, the die further includes at least one of a heat dissipation filling structure and a substrate recess, the heat dissipation filling structure is embedded in the substrate and has an exposed part exposed at a sidewall of the substrate; the substrate recess is recessed from the back side of the substrate towards the device layer.

Abstract: Methods, apparatus, and systems that relate to efficient indication of the beam states under the unified TCI framework for uplink channels and reference signal transmissions in multiple transmission and reception points. In one example aspect, a method for wireless communication includes determining one or more beam states associated with a transmission from a terminal device to a base station and performing the transmission according to the one or more beam states. One beam state is associated with multiple channels and reference signals.

Abstract: Provided are a timing information configuration method, apparatus and system and a storage medium. The timing information configuration method includes that a first node predefines or configures timing information of a second node. The timing information includes at least one of: a timing mode, a downlink transmission timing alignment mode, a timing advance (TA) configuration mode, a TA value, an offset of a TA value, a number of orthogonal frequency division multiplexing (OFDM) symbols that an uplink transmission timing is advanced or delayed relative to a downlink transmission timing for alignment, or a number of OFDM symbols that an uplink reception timing is advanced or delayed relative to a downlink reception timing for alignment. The timing information configuration method includes that a second node determines timing information of the second node in a manner of predefinition or in a manner of being configured.

Abstract: This disclosure is directed to methods, systems, and devices related to wireless communication, and more specifically, to determine an association between demodulation reference signal (DMRS) ports and phase tracking reference Signal (PTRS) ports for uplink transmission. A method of wireless communication, comprising receiving, by a wireless communication device, an indication with a number of bits; wherein the indication is indicated in a downlink control information (DCI); and determining, by the wireless communication device, an association between a number of demodulation reference signal (DMRS) ports and a number of phase tracking reference Signal (PTRS) ports according to the indication.