Abstract: A wireless communication circuit, a Bluetooth communication switching method, and an electronic device. The wireless communication circuit includes: a processor, a switching circuit, a modulator demodulator, a first FEM, and a second FEM. The first FEM supports wireless fidelity Wi-Fi communication or Bluetooth communication. The second FEM supports cellular communication or Bluetooth communication. The processor is configured to: acquire whether the first FEM performs Wi-Fi communication; and when the first FEM performs Wi-Fi communication, transmit a first control command to the switching circuit to control the switching circuit to detect whether the modulator demodulator transmits a mobile industry processor interface MIPI command to the second FEM, and when the modulator demodulator does not transmit an MIPI command to the second FEM, control the second FEM to perform Bluetooth communication.

Abstract: Embodiments of this application provide a foldable electronic device including an antenna. The foldable electronic device include a first body, a second body, and a rotating shaft connected to the first body and the second body. The first body and the second body are rotatable around the rotating shaft. As the first body and the second body rotate, a form of the foldable electronic device may be switched between a folded state and an unfolded state. The antenna may be a slot antenna formed by hollowing out a metal housing of the first body or a metal housing of the second body. The slot antenna may include a first branch and a second branch, where the first branch and the second branch may be perpendicular to each other. This can reduce the antenna directivity coefficient, improve an antenna radiation pattern, and improve a signal coverage capability of the electronic device.

Abstract: Embodiments of this application relate to the field of electronic technologies. Provided are a rendering method and apparatus, a device, and a storage medium. In a graphics rendering process, for a to-be-rendered model included in to-be-rendered data, when the to-be-rendered model meets a first condition, ray tracing rendering is performed on the to-be-rendered model based on first ray emission density; or when the to-be-rendered model meets a second condition, ray tracing rendering is performed on the to-be-rendered model based on second ray emission density. When the first condition is different from the second condition, the first ray emission density is different from the second ray emission density. In the technical solution, when a condition met by the to-be-rendered model changes, ray emission density for performing ray tracing rendering can be adaptively adjusted, which reduces power consumption during rendering and improves rendering efficiency while ensuring a rendering effect.

Abstract: Embodiments of this application provide an electronic device, including a screen component, a middle frame, a main board, a connector, and a flexible printed circuit board, the screen component and the middle frame enclose an accommodating cavity, the main board is located in the accommodating cavity, the connector is disposed on a side of the main board deviating from the screen component, the flexible printed circuit board connects the connector and the screen component, an assembly hole is disposed on the middle frame, and the assembly hole is disposed corresponding to the connector. The electronic device provided in embodiments of this application can resolve a problem in related technologies that an assembly length of the flexible printed circuit board is long, resulting in high costs of the electronic device and affecting quality of signal transmission from the main board to a screen end.

Abstract: Embodiments of this disclosure are applied to the field of circuit control, and provide a level setting method and an electronic device. When determining that a keyboard is in an off state, an electronic device configures level statuses of all output pins in the keyboard to a first level, to avoid existence of a potential difference between an input pin and an output pin. When the keyboard is in an on state, the electronic device configures levels of all the output pins corresponding to keys on the keyboard to a second level or a third level. When the levels of the output pins are the second level or the third level, the keyboard can generate an interrupt properly when receiving a user's operation of pressing a key, so that the electronic device can determine, based on the interrupt, the key pressed by the user.

Abstract: In a scenario in which calling UE resides in an LTE network or a 5G SA network and called UE resides in the 5G SA network, when the calling UE fails to call the called UE through an IMS domain, the calling and called ends cooperatively execute a call saving policy: the calling UE performs a call retry, for example, when a VoNR call or an EPS fallback call fails, falls back to LTE to initiate a VoLTE call retry, or initiates a CSFB call retry on LTE when the VoLTE call fails. The called UE falls back to the LTE network or a CS domain, and cooperates with the calling UE to complete the call. In this way, a probability that the UE successfully initiates a call can be improved, a call requirement of a user can be met, and call experience of the user can be improved.

Abstract: This application provides a method for preloading a memory page, an electronic device, and a chip system, and relate to the field of terminal application technologies. The method includes: After a hot start of an application ends, a page table entry snapshot is generated by using a page table entry that is accessed in a hot start procedure of the application. The page table entry snapshot may be stored in a disk or a memory. When the application is hot started next time, the page table entry snapshot of the application may be read in advance from the disk or the memory, and file page data and anonymous page data corresponding to the page table entry snapshot are loaded into a physical memory based on the page table entry snapshot; and a page table entry is filled.

Abstract: This application discloses a hinge angle detection method and a related device, to accurately calculate a hinge angle of a foldable screen. A specific solution is applied to a foldable electronic device. The foldable electronic device includes a first screen and a second screen. A motion status of the electronic device and a relative position between a common axis and a horizontal plane are determined, and then a target algorithm is determined based on the motion status and the relative position. For the current motion status and relative position, accuracy of calculating a hinge angle by using the determined target algorithm is relatively high. The target algorithm includes an acceleration sensor algorithm, a gyroscope sensor algorithm, or a fusion algorithm. The fusion algorithm is an algorithm of fusing data of an acceleration sensor and data of a gyroscope sensor to calculate a hinge angle.

Abstract: Embodiments of this application provide a coil alignment method and a charging system.

Abstract: An optical lens includes: a first lens group, a focal power adjustable element, and a second lens group in sequence from an object side to an image side in an optical axis direction. The focal power adjustable element is configured to change a focal length of the optical lens. The first lens group includes at least two lenses. The second lens group includes at least one lens. The optical lens is specifically an auto focus lens. A focal power of the focal power adjustable element is adjusted, so that the focal length of the optical lens can be changed. This enables the optical lens to form an image of an object at different object distances and implement auto focus. In solutions provided in this application, the focal power adjustable element with a large size is placed between the first lens group and the second lens group.

Abstract: This application relates to the technical field of electronic devices, and provides a camera module and an electronic device, to resolve problems that a camera module is easily disturbed, shooting performance of the electronic device is reduced, and a shooting effect is affected. The foregoing camera module is applied to the electronic device, which includes a lens, a camera circuit board, and a ground member. The camera circuit board is fixed to the lens. The ground member is arranged on the camera circuit board and electrically connected to the camera circuit board. The ground member is electrically connected to a ground terminal of a circuit board of the electronic device.

Abstract: An electronic device includes a housing, a buffer component is connected to the housing, a first electronic element is located on a side that is of the buffer component and that is away from the housing, and a second electronic element is located on a side that is of the housing and that is away from the buffer component. The buffer component has a recess, and at least a part of a front projection of the second electronic element in a thickness direction of the electronic device falls within a front projection of the recess.

Abstract: A method for determining a paging mode and a terminal device are provided. The method includes: a first network device sends first indication information to a terminal device. The first indication information indicates a first paging mode supported by the first network device. The second network device sends second indication information to the terminal device. The second indication information indicates a second paging mode supported by the second network device. A core network device determines a third paging mode corresponding to the terminal device, and sends a first paging message to the first network device. The first paging message includes the third paging mode corresponding to the terminal device. The first network device sends a second paging message to the second network device. In this way, it can be ensured that the terminal device and the network devices send and receive paging based on a same procedure.

Abstract: In the field of image processing and display technologies, a vertical synchronization signal-based image processing method, an electronic device, and a storage medium are provided. The method includes: an electronic device draws and renders a first layer in response to a first vertical synchronization signal, and buffers the first layer in a first buffer queue at a first moment. If the first moment is after a second vertical synchronization signal, and a first image frame to be refreshed and displayed does not exist at a third vertical synchronization signal, the electronic device immediately triggers layer composition on the first layer at the first moment, to obtain a second image frame.

Abstract: This application discloses a hybrid automatic repeat request (HARQ) process identifier determining method and apparatus, a device, and a storage medium, and belongs to the field of communication technologies. In the method, semi-static resource configuration information is received, where the semi-static resource configuration information indicates to configure a semi-static resource, and the semi-static resource includes a plurality of sets of resources. A terminal determines a HARQ process identifier for each resource in the semi-static resource based on a target time domain interval or a target flag value. In this way, the terminal determines HARQ process identifiers for all resources in the semi-static resource in a unified determining manner by using the plurality of sets of resources in the semi-static resource as a whole. Because an independent identifier offset does not need to be introduced, a number of used HARQ processes is reduced, and system capacity is improved.

Abstract: Embodiments of this application provide a recording method and apparatus, and a storage medium, and relate to the field of terminals. The method is applied to a terminal device including a first camera, and the method includes: displaying, by the terminal device, a first interface of a camera application, where the first interface includes a first window and a second window; the first window displays a first picture collected by the first camera, and the second window displays a second picture; and the second picture is a part of the first picture; at a first moment, when the terminal device detects that a first position of the first picture includes a first object, including the first object in the second picture; and at a second moment, when the terminal device detects that a second position of the first picture includes the first object, including the first object in the second picture, where the second moment is later than the first moment.

Abstract: Embodiments of this application relate to the field of electronic device technologies, and provide an optical lens device, a camera module, and an electronic device. The optical lens device includes a first lens group, a second lens group, and a third lens group that are arranged from an object side to an image side. The first lens group has positive focal power, the second lens group has negative focal power, the third lens group has focal power, and an effective focal length fg1 of the first lens group and an effective focal length f of the optical lens device meet 0.65<fg1/f<5.6.

Abstract: Embodiments of this application provide a recording method and apparatus, and a storage medium. The method is applied to a terminal device including a first camera, and the method includes: displaying, by the terminal device, a first interface of a camera application, where the first interface includes a first window and a second window; at a first moment, when the terminal device detects that a first position of the first picture includes a first object, including the first object in the second picture; at a second moment, when the terminal device detects that a second position of the first picture includes the first object, including the first object in the second picture; and at a third moment, stopping, by the terminal device in response to a trigger operation of a user on a first button, the second window, and continuing to display the first window.

Abstract: Embodiments of this application provide a dual Wi-Fi connection method and an electronic device. While exchanging data with a first access point, a first electronic device in the embodiments of this application may quickly establish a Wi-Fi connection with a second access point based on an association relationship between the first access point and the second access point, and after establishing the Wi-Fi connection with the second access point, exchange data with the first access point and the second access point simultaneously, to effectively shorten a duration taken for accessing the second access point, improve the throughput of the first electronic device and the stability of data transmission, and further improve the user experience.

Abstract: This application provides a rendering optimization method, an electronic device, and a computer-readable storage medium. The method is applied to the electronic device, including: determining first polygonal mesh data corresponding to an object model in a scene; creating a bounding box corresponding to the object model based on the first polygonal mesh data; determining a pixel range covered when the bounding box is projected onto a screen of the electronic device, obtaining a relationship between a quantity of pixels covered by the bounding box and a quantity of pixels of the screen, and determining a distance between an observation angle in the scene and the object model; determining a level of detail (LOD) level corresponding to the object model based on the distance and the relationship, and updating the first polygonal mesh data to second polygonal mesh data based on the LOD level.