Abstract: An encoding method for channel state information (CSI), performed by a user equipment (UE), includes: encoding, based on a first target CSI compression encoder, a target CSI matrix in a delay domain and an angle domain, to generate a compressed encoded value, in which the first target CSI compression encoder includes N composite convolution layers and one fully-connected layer, each composite convolution layer includes a delay-domain convolution step and an angle-domain convolution step, and the delay-domain convolution step of the first composite convolution layer in the N composite convolution layers is smaller than the angle-domain convolution step of the first composite convolution layer in the N composite convolution layers, where N is a positive integer.

Abstract: A method for determining a signal detection network includes: determining sample communication parameters in communication of a sample transmitting end and a sample receiving end via a sample intelligent reflecting surface (IRS); and training an initial neural network based on a training sample set composed of the sample communication parameters to obtain the signal detection network. An input of the initial neural network is the sample communication parameters, and an output of the initial neural network is an estimated value for a transmitted signal of the sample transmitting end.

Abstract: A method for reducing frequency interference, and a communication satellite system. The method includes configuring the communication satellite system, determining a first range of areas in which a spatial isolation angle between the LEO satellite and the GEO satellite does not satisfy a minimum spatial isolation angle within service areas of the movable spot beams, enabling the movable spot beams to not enter the areas, and when the movable spot beams of the transmitting and receiving user antennas of multiple adjacent LEO satellites provide services to a same area, calculating a spatial isolation angles between the movable spot beams of the transmitting and receiving user antennas of any two adjacent LEO satellites, and in response to the spatial isolation angle not satisfying the minimum spatial isolation angle, assigning different sub-frequencies to the movable spot beams that do not satisfy the minimum spatial isolation angle.

Abstract: This application describes examples of a grid-tied inverter apparatus and a grid-tied control method. In one example, the grid-tied inverter apparatus includes an inverter circuit, a controller, and a filter circuit. The controller is configured to adjust switching frequencies of a plurality of power switching transistors based on an output current value of the inverter apparatus, to adjust a resonance frequency of the filter circuit through different resonant branches, so that the resonance frequency meets a grid-tied requirement.

Abstract: Aspects of the present disclosure relate to a power trigger mechanism for a power tool, comprising a first locking device and a second locking device, wherein the first locking device and the second locking device can be actuated independently of each other. Further aspects of the present disclosure relate to a power tool comprising said power trigger, and a method of operating said power trigger. The present invention provides a power trigger with intuitive operation, improved safety and improved control and stability of the power tool.

Abstract: A method for automatically activating a video conference meeting device, wherein the video conference meeting device includes a power supply, a main processor and a plurality of peripheral components, and a radar detector connects to the video conference meeting device, the method comprises (a) the radar detector detecting with a radar detection coverage when the video conference device is in a standby state; (b) when the radar detector detects an object appearing in the radar detection coverage, obtain a position of the object detected in the radar detection coverage; (c) the radar detector obtaining boundary information of an effective zone and determining whether the position of the detected object is within the effective zone; (d) when the radar detector determines that the position of the detected object is within the effective zone, activating the video conference meeting device which loads an operation program.

Abstract: Various embodiments set forth high-resolution liquid crystal displays and components thereof. In some embodiments, light emitted by a high-resolution green color liquid crystal display is combined, via a combiner, with light emitted by at least one lower-resolution red and blue color liquid crystal display. The red and blue color display(s) may include a single display or two displays positioned on opposing sides of the combiner. The combiner may be a dichroic or polarization-based combiner. Combined light from the green color display and the red and blue color display(s) is passed through collimating optics, such as a pancake lens or a Fresnel lens, toward a viewer's eye.

Abstract: A network path determining method includes: receiving a data transmission request, the data transmission request includes a destination address and delay information, and the delay information indicates a delay duration allowed by the data transmission request; and selecting, based on the destination address and the delay information, a data transmission path for reaching the destination address and with a time delay less than or equal to the delay duration.

Abstract: The disclosed devices and systems may include transparent antennas and touch displays that may be included in wearable devices. An example wearable device may include a display module including a display stack, the display stack including a display cover layer, an antenna layer, and a display layer, wherein the antenna layer (1) is positioned between the display cover layer and the display layer, and (2) includes at least one antenna element. Various other systems and devices are disclosed.

Abstract: A method for selecting an application and associated operational guidance to utilize on a mobile device is disclosed. In one embodiment, such a method identifies a selected environment of interest. Within the selected environment, the method identifies one or more applications that are commonly utilized by users within the selected environment and documents the one or more applications. The method detects physical entry of a particular user into the selected environment and, in response to detecting the entry, automatically notifies the particular user of the one or more applications that are commonly utilized within the selected environment. In certain embodiments, the method enables the user to quickly launch the one or more applications and/or provides operational guidance to the user with regard to using the one or more applications. A corresponding system and computer program product are also disclosed.

Abstract: The present disclosure relates to a data packet transmission method, a data packet transmission apparatus, and a storage medium. The data packet transmission method is applied to a first device and includes: transmitting a first data packet in a first data packet format, where the first data packet format includes a router identifier field and a time field, the router identifier field including a router identifier that indicates a router for forwarding the first data packet, and the time field including a first time corresponding to the router identifier. With the present disclosure, an accurate time for a data packet to arrive at a destination device can be ensured.

Abstract: A disclosed apparatus may include at least one touch sensor and an integrated film that includes at least one antenna, wherein the integrated film is at least partially disposed on the at least one touch sensor such that the at least one touch sensor operates as a radiating element for the at least one antenna. Various other apparatuses, systems, and methods are also disclosed.

Abstract: A packaged device includes a circuit board, an electronic component, and a heat storage portion. The electronic component is electrically coupled to the circuit board; and the heat storage portion is disposed on the circuit board or embedded in the circuit board, and the heat storage portion is adjacent to the electronic component, where a specific heat capacity of the heat storage portion is higher than a specific heat capacity of the circuit board, and the heat storage portion is configured to store and release heat. A heat storage material with a relatively high specific heat capacity is introduced into the packaged device, and the heat storage portion is disposed on the circuit board around the electronic component where a large amount of heat generated by the electronic component in a short time can be quickly stored in the heat storage portion and then released to the outside.

Abstract: A photovoltaic power generation system and a conversion circuit. Two groups of photovoltaic arrays are cascaded by using the conversion circuit disposed in the photovoltaic power generation system to effectively increase an input voltage of a DC/AC conversion circuit. In this way, a cable with an existing diameter specification can improve current transmission in the photovoltaic power generation system, to effectively reduce costs of the photovoltaic power generation system. A voltage to earth at an intermediate node in the conversion circuit is adjusted to a first preset value, so that both an absolute value of a voltage to earth of a first group of photovoltaic arrays and an absolute value of a voltage to earth of a second group of photovoltaic arrays are less than a first threshold.

Abstract: An application function (AF) session processing method is applied to a first network device and includes: sending an update request for quality of service (QoS) of an AF session. The update request for the QoS of the AF session includes parameter information of a group of terminals, and the group of terminals includes one or more terminals.

Abstract: The invention discloses a starch-based multi-channel airflow unit and a preparation method and an application thereof. The preparation method of the present invention comprises the following steps: melting a polylactic acid, wherein a temperature of a first temperature control zone is 135° C. to 145° C., a temperature of a second temperature control zone is 175° C. to 185° C., a temperature of a third temperature control zone is 190° C. to 200° C., and a temperature of a fourth temperature control zone is 175° C. to 185° C.; gelatinizing a starch-based material, adding the starch-based material in the third temperature control zone and fully mixing the mixture; adding a polyol in the third temperature control zone, and fully mixing the mixture; and extruding out the mixed material through twin screws, sizing in vacuum, cooling and sizing, and winding and cutting to obtain the starch-based multi-channel airflow unit.

Abstract: This application provides a power converter box used in a photovoltaic system. The 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 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.

Abstract: Methods, apparatuses, and systems for verifying alignment of a compact antenna test range (CATR) are presented. A radio frequency (RF) profile may be generated based on test signals received by a reference antenna at a plurality of orientations. Phase and amplitude data of the RF profile may be used to determine whether the CATR is aligned properly.

Abstract: This application describes examples of a direct current combiner box, a photovoltaic power generation system, and a fault detection method. In one example, the direct current combiner box includes a fault detection unit, a protection circuit, and a boost circuit. The fault detection unit detects an operating parameter of the direct current combiner box. The protection circuit sends a protection signal to the boost circuit when the operating parameter meets a specified condition. The protection signal is used to enable the boost circuit to adjust a first voltage of a photovoltaic array at an input end of the direct current combiner box to a second voltage. After receiving the protection signal, the boost circuit adjusts the first voltage of the photovoltaic array at the input end of the direct current combiner box to the second voltage.

Abstract: The present disclosure provides a parallel bus-based communication system, the system including: electronic devices; a host controller equipped with a selecting chip and a communication chip, and the communication chip controls at least one channelized parallel bus, and the electronic devices are individually connected to the channelized parallel bus. The host controller, upon first power on, allocates addresses to the electronic device sequentially via the selecting chip. In the present disclosure, the communication chip of the communication system employs a parallel bus communication mode, and the selecting chip sequentially allocates addresses to the electronic device. Communication functions can be achieved by using a small number of communication chips. The electronic devices (sensors) are independent of each other and do not affect one another. The existing sensor structures and vehicle harness may be used, which has cost advantages.