Abstract: A wearable device comprising a first array of non-optical sensing nodes is disclosed. The first array comprises a plurality of nodes. The plurality of nodes are operable to sense vasodilation of an artery in proximity to the first array. Systems and methods for determining a difference between a first position and a first reference position of the first array relative to a first artery are disclosed. First signal information may be received from the wearable device. The first signal information may represent first signal variation data sensed by each node of the first array. A first position of the first array relative to a first artery may be determined based on a first signal variation pattern in the first signal information. A difference between the first position and a first reference position of the first array relative to the first artery may then be determined.

Abstract: A data writing and reading method is applied to a data storage system. The storage system includes a processor, a charged particle beam excitation modulation component, and a recording medium. The method is performed by the processor. The data writing method includes obtaining to-be-written data; controlling, based on the to-be-written data, the charged particle beam excitation modulation component to generate a charged particle beam array with a target modulation feature; and controlling the charged particle beams in the charged particle beam array to act on the recording medium to generate, in a target area of the recording medium, a target recording feature corresponding to the to-be-written data.

Abstract: This application discloses a communication method and a related product. The method includes: sending a first message, where the first message includes a first link configuration parameter, and the first link configuration parameter is used to establish a first link; and receiving a first acknowledgement message sent by a second user terminal, where the first acknowledgement message is used to indicate that the second user terminal completes establishment of the first link to the first user terminal.

Abstract: A channel state information transmission method, where a responder receives a channel measurement signal sent by an initiator by using one or more transmit antennas, and the responder sends a feedback frame to the initiator based on the channel measurement signal. The feedback frame includes information used to indicate a transmit antenna subset of the initiator and one or more channel state information blocks of a channel between the corresponding transmit antenna subset of the initiator and the responder, where the transmit antenna subset is determined from one or more transmit antennas by using which a channel measurement signal is sent.

Abstract: A method includes generating an encoded and secured message comprising at least two parts, and transmitting the at least two parts of the encoded and secured message over at least two beam pair links (BPLs) associated with the first device and the second device, each part of the at least two parts being transmitted over a single BPL.

Abstract: A cell measurement method and cell measurement apparatus, the method including receiving, by a terminal device, first information from a network device, where the first information indicates a measurement parameter used by the terminal device to perform cell measurement in an idle state or an inactive state, and a detection signal for the cell measurement includes at least a synchronization sequence or physical broadcast channel block (SSB) or a channel state information reference signal (CSI-RS), and sending, by the terminal device, a measurement result of the cell measurement to the network device based on the first information.

Abstract: This disclosure provides a beam information indication method and an apparatus. The terminal device obtains reference domain information of a plurality of beams and a first offset corresponding to each moment, to update beam domain information, where the first offset indicates an offset of domain information of the plurality of beams relative to the reference domain information of the plurality of beams. In technical solutions provided in this disclosure, domain information of the plurality of beams can be updated with low signaling overheads. The technical solutions may be applied to a satellite communication system, to implement interference management of satellite beams.

Abstract: Provided is a black box data management method and apparatus for an intelligent driving vehicle. A black box device first obtains black box data based on a black box trigger event, wherein the black box device is configured to manage the black box data in the intelligent driving vehicle. The black box device evaluates a storage level of the black box data based on an event type of the black box trigger event and a data type of the black box data. The black box device stores the black box data based on the storage level and according to a preset rule.

Abstract: A method of storing data in general purpose registers (GPRs) includes packing a tile of data items into GPRs, where the tile includes multiple channels. The tile of data items is read from memory. At least two channels of the data are stored in a first GPR, and at least two additional channels are stored in a second GPR. Auxiliary data is loaded into a third GPR. The auxiliary data and the tile data can be used together for performing convolution operations.

Abstract: Example network-based adaptive streaming media parameter adjustment methods and apparatuses are disclosed. One example method includes receiving, by an access network device, media QoS information from a session management network element, where the media QoS information includes at least two bit rate indicators and QoS requirement information corresponding to each of the bit rate indicators. The access network device determines, based on a current network condition and the media QoS information, a target bit rate indicator from the at least two bit rate indicators. The target bit rate indicator is sent to a terminal or a video server, where the current network condition meets a network requirement for transmitting streaming media data at a bit rate indicated by the target bit rate indicator.

Abstract: A method for presenting a face in a video call includes: obtaining a key feature point of a facial expression of a user based on a face image of the user; driving a three-dimensional (3D) head image of the user by using the key feature point of the facial expression of the user, to obtain a target 3D avatar of the user, where the target 3D avatar of the user has an expression of the user; rotating the target 3D avatar based on a preset presentation angle, to obtain a target 3D avatar at the preset presentation angle; and transmitting the target 3D avatar at the preset presentation angle to a peer video call device. A user can see a 3D avatar that is of a user and that is at a preset presentation angle in real time.

Abstract: Provided are a method, an apparatus, a computer program product and a non-transitory computer-readable medium for video coding. The method comprises performing an intra-prediction process of a block comprising samples to be predicted, wherein an interpolation filter is applied to reference samples of the block during the intra-prediction process of the block. The interpolation filter is selected on the basis of a subpixel offset between the reference samples and the samples to be predicted, and a size of a main reference side used in the intra-prediction process is determined according to a length of the interpolation filter and an intra-prediction mode that provides, out of a set of available intra-prediction modes, the greatest non-integer value of said subpixel offset, wherein the main reference side comprises the reference samples.

Abstract: An electronic device determines an operating channel of a router, a channel range supported by the router, and a channel range supported by a smart home device. After determining that the operating channel of the router is not within the channel range supported by the smart home device, the electronic device sends an operating channel switching instruction to the router, so that an operating channel after switching is within the channel range supported by the smart home device and sends a Wi-Fi name and a password of the router to the smart home device, so that the smart home device can connect to the router by using the Wi-Fi name and the password of the router.

Abstract: A video coding mechanism is disclosed. The mechanism includes encoding a coded picture in one or more video coding layer (VCL) network abstraction layer (NAL) units in a bitstream. A non-VCL NAL unit is encoded into the bitstream such that a temporal identifier (TemporalId) for the non-VCL NAL unit is constrained to be equal to a TemporalId of an access unit (AU) containing the non-VCL NAL unit when a NAL unit type (nal_unit_type) of the non-VCL NAL indicates a supplemental enhancement information (SEI) message. A set of bitstream conformance tests is performed on the bitstream based on the SEI message. The bitstream is stored for communication toward a decoder.

Abstract: A bidirectional power conversion system includes an isolated power converter having a first input connected to an output of a diode rectifier and a second input connected to an output of a power factor correction device. The power conversion system further comprises a plurality of switches and a plurality of diodes configured such that the plurality of switches and the plurality of diodes form the diode rectifier and the power factor correction device when the system is configured to deliver power from an AC power source to a DC load and the plurality of switches forms an inverter when the system is configured to deliver power from a DC power source to an AC load.

Abstract: This application provides a data transmission method and communications devices. In some implementations, a terminal device receives, from a first server, first indication information indicating a sequence number of data that is of an application and that has been received by the first server from the terminal device. After a connection between the terminal device and a second server is established, the terminal device transmits data of the application through the connection between the terminal device and the second server according to the first indication information.

Abstract: A method includes: receiving, by a session management function (SMF), first information from an access and mobility management function (AMF); obtaining, by the SMF, protocol data unit (PDU) session management subscription information from a unified data management (UDM) module; and when dynamic policy and charging control (PCC) is not deployed, establishing, by the SMF based on the first information and at least one of the PDU session management subscription information or local PDU session policy information of the SMF, a default guaranteed bit rate (GBR) quality of service (QoS) flow in the PDU session.

Abstract: Embodiments provide a voice interaction method and an apparatus, and relate to the field of terminal technologies. Common voice skill commands in a first application scenario may be determined based on the first application scenario and a historical voice skill usage record, and displayed in a display interface. This can implement scenario-based recommendation of voice skill commands, to cover as many application scenarios as possible. In this application, after being woken up, the voice assistant determines the first application scenario based on one or more information items. The voice assistant determines the common voice skill commands in the first application scenario based on the first application scenario and the historical voice skill usage record. The voice assistant displays the common voice skill commands in the first application scenario in the display interface.

Abstract: A physical downlink control channel PDCCH transmission method and apparatus is provided. The method includes: A network device sends first indication information to a terminal device, where the first indication information may include configuration information of a PDCCH, the configuration information of the PDCCH is used to indicate at least one repeated transmission configuration manner, which includes a first repeated transmission configuration manner. The repeated transmission configuration manner includes at least one of a quantity of repetitions of the PDCCH and an aggregation level that is of the PDCCH and that corresponds to the quantity of repetitions. The network device may send the PDCCH to the terminal device based on the first repeated transmission configuration manner. According to this method, a sending effect of a PDCCH at a higher aggregation level can be implemented through repeated sending of a plurality of PDCCHs at lower aggregation levels.

Abstract: A first network element first obtains an access request including access location information of a first terminal device; then, the first network element may obtain subscription information including subscription location information of the first terminal device; when the first network element determines that the access location information of the first terminal device does not belong to the subscription location information, the first network element may obtain allowed information for allowing the first terminal device to access a network at an access location corresponding to the access location information; and the first terminal device may further be allowed, based on the allowed information, to access the network at the access location corresponding to the access location information.