Abstract: This application provides receiving a target synchronization signal block and first configuration information from a network device, where the first configuration information includes a first offset value, and the first offset value indicates interval duration between a start time domain position of a first association period and a start time domain position of a reference system frame; then, determining, based on the first configuration information and the target synchronization signal block, a random access occasion that is associated with the target synchronization signal block and that is in one or more association periods; and finally, sending a preamble to the network device on one random access occasion associated with the target synchronization signal block.

Abstract: A communication method and a communication apparatus are disclosed. A terminal receives a synchronization signal/physical broadcast channel block SSB, where the SSB may carry configuration information used to determine a time domain position of search space of scheduling information of a first system information block SIB, the first SIB is a SIB other than a SIB 1, and the first SIB is used to carry information related to random access of the terminal. The terminal may determine the time domain position of the search space of the scheduling information of the first SIB based on first configuration information. In the foregoing solution, the terminal can monitor and receive the scheduling information of the first SIB and the first SIB without obtaining the SIB 1.

Abstract: A parking brake control method for an electromechanical brake system of an urban rail vehicle includes an operation instruction mechanism, a brake control mechanism, an electromechanical actuating mechanism and an auxiliary mechanism. The operation instruction mechanism outputs a control signal to the brake control mechanism to drive the action of the electromechanical actuating mechanism so as to achieve braking application and relief of the vehicle. The auxiliary mechanism is used for a redundant power supply system of a brake system. The auxiliary mechanism further includes a zero-speed state monitoring mechanism for monitoring a zero-speed state of the vehicle and an energy storage battery mechanism for providing a backup power supply. The parking brake control method enables an urban rail vehicle using an electromechanical brake system to achieve brake application and relief in a parked state and achieve brake application and relief in a dormant state of the urban rail vehicle.

Abstract: This application provides a paging method and a communication apparatus. The method includes: A terminal device determines a first paging monitoring occasion resource based on a first correspondence and a first location area to which a current location of the terminal device belongs, where a plurality of location areas correspond to a plurality of paging monitoring occasion resources in the first correspondence, and the first location area corresponds to the first paging monitoring occasion resource in the first correspondence. The terminal device detects downlink control information from a network device on the first paging monitoring occasion resource, where the downlink control information is used to schedule a paging message.

Abstract: A synchronization signal block transmission method. When a terminal device receives at least one of N SSBs; and the terminal device determines a time position of a first SSB based on a number of the first SSB in the at least one SSB and a sending parameter, where the sending parameter is used to determine N candidate sending positions for transmitting the N SSBs in one periodicity T1, the N candidate sending positions are in at least two system frames, and the sending parameter includes one or more of the following parameters: a sweeping periodicity T3, a quantity of candidate sending positions included in each system frame, a time interval between two consecutive system frames of candidate sending positions included in each periodicity T1, and a quantity of system frames of the candidate sending positions included in each periodicity T1.

Abstract: The disclosure provides a pixel driving method, a pixel driving circuit and a display device.

Abstract: This application provides an initial access method and a communication apparatus to reduce an initial access delay and improve access efficiency, and can be applied to various communication systems such as a 5G system, a 6G system, a satellite communication system, an internet of vehicles system, and a V2X system. The method includes: A network device and a terminal device receive one or more SSBs on a time domain resource that carries a synchronization signal/physical broadcast channel SS/PBCH block SSB set in one SSB period, and access a network based on the received SSB. The SSB set is a set including one or more SSBs, a maximum value of a quantity of SSBs in the SSB set is Lmax, Lmax>64, and a time-frequency resource of the one or more SSBs is related to an SFN that carries the SSB.

Abstract: Methods and apparatus to operate closed-lid portable computers are disclosed. An example portable computer includes a first display on a lid of the portable computer, the first display to be deactivated when the lid is in a closed position; a second display distinct from the first display, the second display to be visible when the lid is in the closed position; instructions; and processor circuitry to execute the instructions to cause activation of the first display in response to a user interaction with the second display while the lid is in the closed position.

Abstract: A signal transmission method and a communication apparatus are described. The method may include: mapping a reference signal to a target location in a discrete Fourier transform-spread-orthogonal frequency division multiplexing DFT-s-OFDM symbol, where the target location is determined based on a pattern parameter of the reference signal and a location parameter of a data block, and the location parameter of the data block is used to determine a location of the data block in the DFT-s-OFDM symbol; and sending the DFT-s-OFDM symbol. Not only the pattern parameter of the reference signal is considered, but also the location parameter of the data block is considered, so that overall location distribution of the reference signal can be more proper, phase noise estimation performance and channel estimation performance are improved, and demodulation performance is improved.

Abstract: Provided is a display device, including: a display panel and a drive mainboard. The drive mainboard includes a first processor and a second processor. The second processor is electrically connected to the first processor and the display panel. The first processor is configured to acquire data of an image changed portion in response to a control instruction and output the data of the image changed portion to the second processor. The control instruction is issued for controlling a partial change of an image displayed on the display panel. The second processor is configured to output N slave input signals to the display panel. The N slave input signals carry the data of the image changed portion, wherein N is a positive integer greater than 1. The display panel is configured to perform partial image refresh based on the data of the image changed portion.

Abstract: A method of separating metals from a lithium-ion battery leachate includes obtaining a solution with iron, aluminum, nickel, and cobalt. Ammonium phosphate is added to the solution to adjust a pH of the solution to greater than or equal to about 3.00. After adjusting the pH of the solution, at least one phosphate—including iron phosphate and aluminum phosphate—is precipitated from the solution. Then, without adding a base to the solution, a crystallized nickel-cobalt Tutton's salt is precipitated from the solution.

Abstract: This application provides a communication method and apparatus in a high-frequency scenario. The method includes: A transmit-end device may modulate S bitstreams according to a mapping rule corresponding to a first modulation scheme for a higher-order modulation signal to be received by a receive-end device, to generate M lower-order modulation signals, where S is equal to 1 or M, and M is an integer greater than or equal to 2; and then send the M lower-order modulation signals through a line of sight LOS channel, so that a modulation order of a signal transmitted by a transmit end can be reduced.

Abstract: Embodiments of this application disclose a modulation method. A first communication apparatus generates a first symbol stream based on a symbol type quantity, a probability distribution corresponding to a first symbol of each symbol type, a bit quantity corresponding to each first symbol, and a first original bit stream, the bit quantity corresponding to each first symbol is a bit quantity required by each first symbol that is represented by using a bit, and first symbols of different symbol types correspond to different probability distributions and/or different signal amplitudes; and the first communication apparatus generates a first quadrature amplitude modulation (QAM) symbol stream based on the first symbol stream and a second original bit stream.

Abstract: Embodiments of this application disclose a modulation method, a demodulation method, and a related apparatus. A first communication apparatus can ensure, by performing technical solutions of this application, a shaping gain brought by using probabilistic constellation shaping modulation in a high-frequency scenario. The method in embodiments of this application includes: The first communication apparatus determines probability distributions of constellation points in a target probabilistic shaping constellation diagram based on a Maxwell-Boltzmann distribution parameter and a phase noise parameter. The first communication apparatus modulates a first original bit stream and a second original bit stream based on the probability distributions of the constellation points in the target probabilistic shaping constellation diagram, to obtain a first quadrature amplitude modulation QAM symbol stream.

Abstract: An antenna impedance matching design circuit includes a load circuit, a filter circuit and a matching circuit which are connected to each other. The load circuit is connected to one end of the filter circuit for connecting a near field communication chip, and the matching circuit includes a plurality of capacitors.

Abstract: Technologies for device management in metaverse interactions are disclosed. In an illustrative embodiment, a compute device is connected to remote compute devices in a metaverse. The compute device may detect local devices, such as by seeing a device in images captured by a camera of the compute device. The local device may be, e.g., a cell phone or smartwatch. The local devices may be registered by the compute device and reproduced in the metaverse. The local user of the compute device may interface with the local devices in the metaverse. The local user may allow remote users to interface or control the local device as well.

Abstract: In one embodiment, an apparatus comprises a memory and a processor. The memory is to store sensor data, wherein the sensor data is captured by a plurality of sensors within an educational environment. The processor is to: access the sensor data captured by the plurality of sensors: identify a student within the educational environment based on the sensor data: detect a plurality of events associated with the student based on the sensor data, wherein each event is indicative of an attention level of the student within the educational environment: generate a report based on the plurality of events associated with the student; and send the report to a third party associated with the student.

Abstract: A parking brake control method for an electromechanical brake system of an urban rail vehicle includes an operation instruction mechanism, a brake control mechanism, an electromechanical actuating mechanism and an auxiliary mechanism. The operation instruction mechanism outputs a control signal to the brake control mechanism to drive the action of the electromechanical actuating mechanism so as to achieve braking application and relief of the vehicle. The auxiliary mechanism is used for a redundant power supply system of a brake system. The auxiliary mechanism further includes a zero-speed state monitoring mechanism for monitoring a zero-speed state of the vehicle and an energy storage battery mechanism for providing a backup power supply. The parking brake control method enables an urban rail vehicle using an electromechanical brake system to achieve brake application and relief in a parked state and achieve brake application and relief in a dormant state of the urban rail vehicle.

Abstract: A method of removing impurities using an electrochemical membrane apparatus comprising introducing a leaching solution into an electrochemical membrane reactor. The leaching solution of the electrochemical apparatus comprises copper, aluminum, iron, cobalt, manganese, and nickel. The electrochemical membrane reactor comprises at least one positive electrode and at least one negative electrode, and the leaching solution is in contact with the at least one negative electrode. A current is applied through the electrochemical membrane reactor to adjust a pH of the leaching solution and copper is deposited on the at least one negative electrode. The aluminum and the iron are removed from the leaching solution, and the cobalt, the manganese, and the nickel are recovered from the leaching solution. An electrochemical membrane apparatus including an electrochemical membrane reactor is also disclosed.