Abstract: The present disclosure provide a policy coordination method for a group of user equipment (UEs), the method includes receiving a policy request, where the policy request is related to a group policy for the group of UEs; and performing, according to the policy request and pre-stored group policy information, policy coordination on the group of UEs, where the pre-stored group policy information indicates a policy required to be adopted by each UE in the group of UEs for various group policies of the group of UEs.

Abstract: Methods and apparatuses for control of packet data connection are disclosed. According to an embodiment, a user plane entity receives, from a control plane entity, a request for modifying parameters related to a packet data connection at least part of which is to be deleted. Upon receipt of the request, the user plane entity stops forwarding and counting of packets in only one of downlink and uplink directions for the at least part of the packet data connection to be deleted.

Abstract: A computer-implemented method, according to one embodiment, includes using a trained semantic consistency model to determine a semantic consistency of contents of two screenshots. The trained semantic consistency model bases the semantic consistency on dimensions including: a linguistic comparison of the contents, an image comparison of the contents and a text location comparison of the contents. The method further includes outputting the determined semantic consistency for display on a user device. A computer program product, according to another embodiment, includes a computer readable storage medium having program instructions embodied therewith. The program instructions are readable and/or executable by a computer to cause the computer to perform the foregoing method. A system, according to another embodiment, includes a processor, and logic integrated with the processor, executable by the processor, or integrated with and executable by the processor.

Abstract: The disclosure provides manufacturing methods and semiconductor devices. One example method includes that a semiconductor device includes a substrate and an inductor, where a shield layer is formed between the substrate and the inductor, and the shield layer is used to shield an electrical coupling between the substrate and the inductor.

Abstract: A method for correcting dimensional distortion when viewing a display at an angle is disclosed. In one embodiment, such a method identifies a line of sight of a user relative to a display. The method determines an angle of the line of sight relative to the display and a displacement of the user relative to the display. Using the angle and the displacement, the method determines an adjustment needed to reduce dimensional distortion of content on the display caused by the angle and the displacement. The method applies the adjustment to the content. In certain embodiments, applying the adjustment includes one or more of altering a size of the content on the display, altering proportions of the content on the display, and altering an orientation of the content on the display. A corresponding system and computer program product are also disclosed.

Abstract: According to implementations of the subject matter described herein, a solution for generation of three-dimensional avatar is provided. According to this solution, a trained diffusion model is obtained, which is trained based on a sample three-dimensional avatar of a sample object. A target feature representation is generated from a predetermined input using the diffusion model. The target feature representation comprises a set of target feature maps corresponding to a tri-plane, respectively, to characterize feature information of a target object in a three-dimensional space. A three-dimensional avatar of the target object is generated based on the target feature representation. In this way, high-quality three-dimensional avatars can be generated in an efficient way, with reduced memory and computing costs.

Abstract: This disclosure provides a driving circuit. An output end of a bias current control sub-circuit is connected to an output end of an output driving sub-circuit and a driven element; the output driving sub-circuit includes a differential pair module circuit; a drain of PMOS transistor is connected to a load resistor RL1 and a load resistor RL2; one end of the load resistor RL2 close to the driven element is the output end of the output driving sub-circuit, and one end of the load resistor Rf is connected to a first input end of a first operational amplifier; one end of the load resistor Rref is connected to a second input end of the first operational amplifier; and an output end of the first operational amplifier is connected to a gate of the PMOS transistor. This disclosure provides an optimized driving circuit, which can achieve higher-speed optical communication applications.

Abstract: A data processing system implements constructing a first prompt including a font mask of a reference character (RC) and a style prompt, sending the first prompt to a text2image model to iteratively generate salient content and concentrate the salient content within the font mask of RC as a first image of RC; concatenating two of the first images as a second image; generating a combined font mask of the font mask of RC and a font mask of a target character (TC); constructing a second prompt including the combined font mask and the second image, sending the second prompt to the model to iteratively generate salient content and in-paint the salient content within a half of the combined font mask as a third image of RC and TC; cropping a styled TC image from the third image using the font mask of TC; providing the styled TC image to a client device.

Abstract: Disclosed in the embodiments of the present disclosure are a precoding model training method and apparatus, and a precoding method and apparatus. The precoding model training method comprises: a network device receiving channel state information of K terminals, wherein K is an integer greater than 0; and according to the channel state information, training a precoding model, i.e. a DNet model, wherein the DNet model comprises a compression reconstruction sub-model, i.e. a DiSNet model, and a precoding sub-model, i.e. a PreNet model, the DiSNet model comprising K groups of paired compression sub-models and reconstruction sub-models. By means of implementing the embodiments of the present disclosure, a precoding model, i.e. a DNet model, can perform distributed processing on channel state information of a plurality of terminals, such that a network device can perform high-efficiency precoding design when the terminals have limited feedback.

Abstract: A package structure of a bidirectional switch, including a metal bottom plate, a first semiconductor switch, a second semiconductor switch, and a plurality of inner pins. The plurality of inner pins includes a first inner pin, a second inner pin, a third inner pin, a fourth inner pin, and a fifth inner pin. Both a first terminal of the first semiconductor switch and a first terminal of the second semiconductor switch are coupled to the metal bottom plate. A second terminal of the first semiconductor switch is coupled to the first inner pin. A third terminal of the first semiconductor switch is coupled to the second inner pin. A second terminal of the second semiconductor switch is coupled to the third inner pin. A third terminal of the second semiconductor switch is coupled to the fourth inner pin. Each inner pin is coupled to a same lead frame.

Abstract: A flexible printed circuit board includes a coil for near-field communication (NFC) and circuit components for performing other functions such as driving a display panel. By integrating the NFC coil into the flexible printed circuit board, the number of components in an electronic device may be reduced. A ferrite sheet is provided below the NFC coil to enhance the performance of NFC signal reception and transmission. A conductive layer is provided below the ferrite sheet to prevent interference with circuits on a printed circuit board below the flexible printed circuit board.

Abstract: A power amplifier including a gate bias circuit that comprises a first power supply interface and a second power supply interface, a drain bias circuit, and a power transistor. A specific voltage difference exists between a first voltage signal received by an input end of the first power supply interface and a second voltage signal received by an input end of the second power supply interface. A gate of the power transistor is configured to receive a radio frequency signal carrying a plurality of signal slice symbols. When a first signal slice symbol carries valid data, the gate is coupled to an output end of the first power supply interface. When the first signal slice symbol carries no valid data or no radio frequency signal is received, the gate is coupled to an output end of the second power supply interface.

Abstract: This application provides a power amplification system comprising a hybrid coupler, a first amplifier, a second amplifier, a first impedance conversion line, and a second impedance conversion line. An output port of the first amplifier is coupled to the hybrid coupler via the first impedance conversion line. An output port of the second amplifier is coupled to the hybrid coupler via the second impedance conversion line. The first amplifier and the second amplifier are configured to output radio frequency signals. The hybrid coupler is configured to: perform impedance conversion with the first impedance conversion line and/or the second impedance conversion line; and output a combined radio frequency signal from a fourth port of the hybrid coupler. The combined radio frequency signal is obtained by combining the plurality of radio frequency signals.

Abstract: A tightly coupled array antenna and a network device are provided. The tightly coupled array antenna includes a first dielectric slab and a plurality of antenna units printed on a lower surface of the first dielectric slab. Each of the antenna units includes a plurality of dipole antennas that are disposed at intervals. Oscillator arms of the dipole antennas are partially hollowed out to reduce both capacitance formed between the oscillator arms and the first dielectric slab and the cross-sectional area of a current path. A plurality of coupling structures is provided on an upper surface of the first dielectric slab so that each of the antenna units is electrically connected to one coupling structure.

Abstract: The invention discloses an information communication management system for rail vehicles, including a communication sub-network module for establishing sub-networks sharing the frequency domain resources of the wireless access network; a communication transmission rate module for calculating a communication transmission rate of users accessing the sub-network; a communication loss requirement module for defining signal transmission path loss and dynamic flow requirement of the rail vehicle; an allocation efficiency module for analyzing frequency domain resource allocation; an allocation optimization module for constructing a frequency domain resource allocation optimization function based on the frequency domain resource allocation efficiency of the wireless access network; and a resource allocation module for allocating frequency domain resources to each sub-network based on the frequency domain resource allocation optimization function and predict the optimal resource allocation state of the sub-network at

Abstract: A data packet transmission method, performed by a first device, includes: determining an Internet Protocol (IP) data packet. The IP data packet comprises a router identifier of a router for transmitting the IP data packet, and a first time corresponding to the router identifier. The first time is time when the router sends the IP data packet.

Abstract: A power converter analog chip includes a sampling circuit configured to collect electrical parameters of the power converter; a maximum power point tracking circuit configured to perform maximum power point tracking based on the input power or the output power obtained by the electrical parameters, and to obtain an adjustment signal; a rapid shutdown circuit configured to, when receiving a rapid shutdown instruction sent from the outside of the analog chip, generate a rapid shutdown signal; a protection circuit, configured to, when an electrical parameter of the power converter exceeds a first preset threshold, generate a protection signal and send the protection signal to the multiplexer; and a multiplexer configured to select one of the rapid shutdown signal, the protection signal, or the adjustment signal as a control signal, to control a power component in the power converter.

Abstract: The invention discloses a method and system for identifying track risks based on big data analysis. The invention uses the YOLO model and SVM classifier to detect the track, extracts the multi-scale features of the track image, and can quickly and effectively detect the deformation and damage positions in the track. Based on the detection results, the RF model and BP neural network are used to further analyze the fault points of the track, and the output of each model is combined to accurately determine the fault points in the track, thereby reducing the misjudgment and omission of the fault points and providing effective support for subsequent inspection path planning. According to the fault points, the inspection path is formulated in combination with the greedy algorithm and the ant algorithm, which can effectively reduce inspection time, improve efficiency and safety of the train operation, and assist in train operation management.

Abstract: Electrochemical conversion of nitrate to ammonia is an approach to alleviate nitrate pollution in water and simultaneously generate green NH3 fuels. The practical application of this approach is challenging due to the lack of efficient electrocatalysts. The present disclosure relates generally to an electrocatalyst including a plurality of CuWO4 hollow nanospheres, which include asymmetric oxygen vacancies and adjacent Mo clusters, and methods of making and using the same. The electrocatalyst of the present disclosure is designed for efficient ammonia electrosynthesis.

Abstract: A power converter box includes at least two power converters, and the at least two power converters include one primary power converter and at least one secondary power converter. The primary power converter obtains status information of a photovoltaic substring corresponding to a secondary power converter, and sends, to an inverter by using a power-line carrier (PLC) communication module in the primary power converter, the status information of the photovoltaic substring corresponding to the secondary power converter and status information of a photovoltaic substring corresponding to the primary power converter. The primary power converter further receives, by using the PLC communication module in the primary power converter, control information sent by the inverter, controls, based on the control information, an output power of the photovoltaic substring corresponding to the primary power converter.