Abstract: A power over Ethernet (PoE) power supplying method where power sourcing equipment (PSE) and a powered device exchange link layer discovery protocol data units (LLDPDUs). Each of the LLDPDUs includes two power values. Each of the power values indicates requested or allocated power for one of two sets of cable pairs of the Ethernet twisted pair connecting the PSE and the powered device. Accordingly, the supplied powers to the powered device at sets of cable pairs are independent from each other.

Abstract: A remote data replication method and a storage system, where a production array sends a data replication request to a disaster recovery array. The data replication request includes an identifier of a source object and a data block corresponding to the source object. The data block is stored in physical space of a hard disk of the production array. The disaster recovery array receives the data replication request. The disaster recovery array creates a target object when the disaster recovery array does not include an object having a same identifier as the source object. An identifier of the target object is the same as the identifier of the source object, the disaster recovery array writes the data block into the physical space.

Abstract: A video coding mechanism is disclosed. The mechanism includes encoding a bitstream comprising one or more layers. A scalable nesting supplemental enhancement information (SEI) message is encoded into the bitstream in a current SEI network abstraction layer (NAL) unit. The scalable nesting SEI message contains one or more scalable-nested SEI messages and one or more scalable nesting layer identifiers (Ids) that specify layer Id values of the layers to which the scalable-nested SEI messages apply except a layer Id value of the current SEI NAL unit. A set of bitstream conformance tests are performed on the layers based on the scalable-nested SEI messages. The bitstream is stored for communication toward a decoder.

Abstract: Embodiments of this application provide a synchronization signal/physical broadcast channel block (SSB) measurement method and an apparatus. One example method includes that a terminal device receives first information and second information. The first information indicates a time domain position of an SSB sent by a serving cell, and the second information indicates a set of SSBs that the terminal device needs to measure and that are sent by a neighboring cell. The terminal device measures, in a first measurement window based on the first information, the SSB sent by the serving cell. The terminal device measures, in a second measurement window based on the second information, the SSB sent by the neighboring cell.

Abstract: A power control method and apparatus, and a device. The method includes: determining, by a network device, whether there is to-be-received uplink data in a first scheduling period on a first receive channel; and in response to determining that there is no to-be-received uplink data in the first scheduling period on the first receive channel, controlling, by the network device, a state of the first receive channel in the first scheduling period to be an off state. This reduces power consumption of the network device.

Abstract: A motion vector prediction method includes parsing a bitstream to obtain an index value of a candidate motion vector list and constructing the candidate motion vector list that includes. candidate motion vectors of K control points of a current block. The candidate motion vectors of K control points are obtained based on a 2N-parameter affine transform model used for a neighboring block of the current block, where N and K are integers greater than or equal to 2 and less than or equal to 4 with N not being equal to K. The method further includes determining, in the candidate motion vector list, target candidate motion vectors of the K control points based on the index value and obtaining a predicted motion vector of each subblock of the current block based on the target candidate motion vectors of the K control points.

Abstract: A DC/DC converter includes an inverter circuit, a transformer, a first rectifier circuit, a second rectifier circuit, and a voltage management circuit. The transformer includes a first primary-side winding, a first secondary-side winding, and a second secondary-side winding. Two terminals of the first primary-side winding are respectively connected to a first output terminal and a second output terminal of the inverter circuit, two terminals of the first secondary-side winding are connected to two input terminals of the first rectifier circuit, and two terminals of the second secondary-side winding are connected to two input terminals of the second rectifier circuit. The voltage management circuit controls an output terminal of the first rectifier circuit, an output terminal of the second rectifier circuit, and an output terminal of the DC/DC converter to be in a first connection relationship in a first sub-cycle of a first working cycle.

Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a bitstream including image data divided into one or more slices. The one or more slices are further divided into one or more tiles. The mechanism further includes determining that a first slice contains a single tile based on a first flag. The mechanism further includes decoding the first slice to generate a reconstructed image.

Abstract: In a method, an electronic device obtains to-be-encoded text, where the to-be-encoded text includes N characters; the electronic device determines a target coding mode for each of the N characters from X optional coding modes; the electronic device groups the N characters into M character fields based on the target coding mode for each character, and determines a target coding mode for each of the M character fields, where M is less than or equal to N; the electronic device encodes the M character fields based on the target coding mode for each character field to obtain a first binary character string; and the electronic device generates, based on the first binary character string, a two-dimensional code of a version corresponding to a length of the first binary character string.

Abstract: This application provides example satellite communication methods and example apparatuses. One example method includes receiving, by a terminal device, first information sent by a satellite, where the first information indicates a first timing change rate range. The terminal device can then measure a downlink timing change rate to obtain a first downlink timing change rate. The terminal device can then determine a first uplink timing change rate based on the first downlink timing change rate and the first timing change rate range. The terminal device can then perform uplink communication with the satellite based on the first uplink timing change rate.

Abstract: The disclosed systems, structures, and methods are directed to optimizing address calculations in a computer. This is achieved in a compiler that identifies an address calculation in code that is being compiled and transforms the code by splitting the address calculation into a first portion in which an offset is determined and a second portion, in which the offset is combined with a base pointer to generate an address. The address and the base pointer have a first bit-length, and the offset has a second bit-length shorter than the first bit-length. The offset is determined using an operation performed at the second bit-length. In some implementations the first bit-length is 64 bits and the second bit-length is 32 bits.

Abstract: A mobile device runs a first application in the foreground, and performs wireless projection onto an electronic device in a first wireless projection mode. The mobile device includes a processor, a memory, and a computer program stored in the memory. When the computer program is executed by the processor, the mobile device is enabled to perform: After it is detected that the first application belongs to a first-type application, automatically outputting first prompt information, where the first prompt information is used for giving a prompt for switching the first wireless projection mode to a second wireless projection mode; or automatically switching the first wireless projection mode to a second wireless projection mode, and performing wireless projection onto the electronic device in the second wireless projection mode.

Abstract: Embodiments of the present disclosure disclose obtaining to-be-encoded first information that includes first and second information bit sets. The bits included in the first information bit set are obtained through decoding by a plurality of terminal devices. The bits included in the second information bit set are able to be obtained through decoding by some of the plurality of terminal devices. Polar encoding is first performed on the first information bit set to obtain first encoded information. Polar encoding is then performed on the second information bit set based on the first encoded information to obtain second encoded information.

Abstract: A method for controlling a network connection includes receiving a reset operation of a user, determining, in response to the reset operation, whether a smart household device is disconnected from a network. Creating a WI-FI hotspot based on a first WI-FI name and a first WI-FI password in response to the smart household device being disconnected from the network, where the smart household device has accessed the network based on the first WI-FI name and the first WI-FI password using a wireless access point (AP) before being disconnected from the network. Obtaining a second WI-FI name or a second WI-FI password, and sending the second WI-FI name or the second WI-FI password to the smart household device based on the WI-FI hotspot to enable the smart household device to re-access the network based on the second WI-FI name or the second WI-FI password using the wireless AP.

Abstract: This application provides a data transmission method and apparatus. The method includes: A first access point detects a channel. If the first access point detects an idle first channel, the first access point sends a first trigger frame to at least one second access point, where the first trigger frame is used to trigger the at least one second access point to send data on the first channel after a first preset time period elapses. In this way, an existing CSMA channel detection mechanism may be compatible with the method, and a conflict caused by contention of a plurality of APs for a channel at the same time can be avoided, which helps improve network transmission efficiency, and helps improve transmission performance.

Abstract: This application provides a combiner, including: a plurality of radio frequency channels, where an ith radio frequency channel includes: an input port, configured to receive as input a first signal corresponding to the ith radio frequency channel, where frequencies of signals corresponding to any two radio frequency channels are different; an output port, configured to output the first signal from the ith radio frequency channel; a resonant cavity component configured between the input port and the output port, including a plurality of resonant cavities connected in series; and a matching resonator, connected to any resonant cavity in the resonant cavity component; and a combination port, connected to an output port of each radio frequency channel, where the ith radio frequency channel is any of the plurality of radio frequency channels, and a consumable device is disposed between matching resonators of any two neighboring radio frequency channels.

Abstract: A communication protocol switching method includes that a first device communicates with a second device using a first protocol to project a screen of the first device to the second device; and when a first application in the first device is opened or a media file stored in the first device is opened, the first device switches to a second protocol to communicate with the second device and to project a display user interface of the first application or the media file to the second device, where the first application manages or plays at least one media file.

Abstract: This application provides example variable gain amplifiers and example phased array transceivers. One example variable gain amplifier includes an amplification circuit, configured to amplify an input signal; a control circuit, configured to control a gain of the amplification circuit by adjusting an output current of the amplification circuit; an inductive load, where the inductive load is coupled to a signal output end of the amplification circuit; and an inductive adjustment circuit, where the inductive adjustment circuit and the inductive load are inductively coupled, and where the inductive adjustment circuit is adjustable.

Abstract: Example methods and apparatus for managing user information of an application are described. One example method is applied to a user management device of a cloud platform, where the cloud platform is configured to hear an application registered by a user with the cloud platform. The method includes receiving a user management registration request of a first application, where the first application is one of applications registered with the cloud platform, and the user management registration request of the first application carries an identifier of the first application. A user management instance is created for the first application according to the user management registration request and the identifier of the first application, where the user management instance is used to manage user information of the first application. The user management instance is invoked to process a service that is in the first application and related to the user information.

Abstract: Methods and systems for predicting behavior of a dynamic object of interest in an environment of a vehicle are described. Time series feature data are received, representing features of objects in the environment, including a dynamic object of interest. The feature data are categorized into one of a plurality of defined object categories. Each categorized set of data is encoded into a respective categorical representation that represents temporal change of features within the respective defined object category. The categorical representations are combined into a single shared representation. A categorical interaction representation is generated based on the single shared representation that represents contributions of temporal change in each defined object category to a final time step of the shared representation.