Abstract: Two devices separately obtain an interval between a time point at which one of the two devices sends a ranging symbol and a time point at which the device receives a ranging symbol sent by the other device, and an interval between a time point at which the other device sends the ranging symbol and a time point at which the other device receives the ranging symbol sent by the one device is determined. A distance between the two devices is determined based on a difference between the two time intervals. Because the obtained time interval is determined based on a receiving time and a sending time of the ranging symbol, accuracy of the time interval can be improved, so that accuracy of the distance obtained through measurement can be improved.

Abstract: A retractable lens, including a base, a first drive assembly, a lifting assembly, a protective lens element assembly, a second drive assembly, and a lens module. The lifting assembly includes an annular rotor, a rigid ring fastened on a side of the annular rotor, a guide member whose two ends are respectively fastened to the annular rotor and the rigid ring and that extends in a first direction, a pin member that is sleeved on an outer side of the guide member and that is slidably assembled on the guide member, an elastic member connected to the pin member and the rigid ring, and a lifting member movably connected to the pin member.

Abstract: This application provides a system control operation method and an electronic device. An operating system of the electronic device may provide intelligent capabilities such as a content search capability, a content generation capability, and a task recognition capability for an upper-layer application, so that the upper-layer application can provide corresponding intelligent services. A flag attribute is added to a system control provided by the operating system. Different attribute values of the flag attribute may correspond to different intelligent capabilities.

Abstract: A data processing method includes the following operations: separately performing convolutional interleaving on n lane data streams to obtain n first data streams, where n>1, and first FEC encoding is performed on all the n lane data streams. Every a codewords obtained through the first FEC encoding are distributed in b lane data streams, where a?b?n, and a?1. z consecutive symbols in each of the first data streams are from z different codewords, and z>1. Then, every K first data streams of the n first data streams are multiplexed to obtain one second data stream, so as to obtain a total of m second data streams. The n first data streams include G first data stream subsets, symbols in different first data stream subsets are from different codewords, m=n/K, K>1, and G>1. y consecutive symbols in each second data stream are from y different codewords, where y>z.

Abstract: A basis feedback method and an apparatus are provided to implement an effective solution of feeding back a weighting coefficient matrix in a non-DFT basis. In this application, when a spatial domain eigenbasis and a frequency domain eigenbasis (or a space-frequency eigenbasis) are reported, the spatial domain eigenbasis and the frequency domain eigenbasis are decomposed based on a spatial domain basis and a frequency domain basis (or the space-frequency eigenbasis is decomposed based on a space-frequency basis); the spatial domain eigenbasis and the frequency domain eigenbasis (or the space-frequency eigenbasis) are respectively indicated by reporting weighting coefficients obtained through decomposition; and a reporting priority of the weighting coefficient is associated with a sequence number of a spatial domain basis, a sequence number of a frequency domain basis, a sequence number of a spatial domain eigenbasis, and a sequence number of a frequency domain eigenbasis.

Abstract: A terminal device determines first indication information, where the first indication information indicates that the terminal device is able to identify a protocol data unit (PDU) set, and the first indication information is associated with one or more of the following: a first data radio bearer (DRB), a first Packet Data Convergence Protocol (PDCP) entity, a first quality of service (QoS) flow, and a first PDU session; and the terminal device sends the first indication information. In this way, the terminal device can accurately determine, for a current XR service, whether the PDU set can be identified.

Abstract: A cyclic shift method includes a communication apparatus that determines a cyclic shift of a root sequence, where the cyclic shift of the root sequence is associated with a sequence length of the root sequence, a root sequence number, a maximum round-trip time, and a maximum Doppler frequency shift; and the communication apparatus determines a cyclic shift sequence based on the cyclic shift of the root sequence, where an ambiguity function of the cyclic shift sequence is equal to zero within a range of the maximum round-trip time and the maximum Doppler frequency shift. The communication apparatus can obtain, based on the root sequence, the cyclic shift sequence whose ambiguity function is equal to zero.

Abstract: This application provides example methods for sending data in a wireless network, and example related apparatuses. One example method includes determining, by a first device, a distributed resource unit (RU) allocated to the first device, where the distributed RU includes data subcarriers and pilot subcarriers, all subcarriers of the distributed RU are distributed on a first frequency band, a size of the first frequency band is 40 MHz, the first frequency band includes a maximum of 36 pilot subcarriers that are disposed at an interval, a quantity of pilot subcarriers included in the distributed RU is greater than or equal to 2, and at least two pilot subcarriers included in the distributed RU are spaced by at least M pilot subcarriers. The first device sends a physical layer protocol data unit (PPDU) on the distributed RU.

Abstract: This disclosure provides example communication methods, example communication apparatuses, and example storage medium. One example method includes: triggering first information, and canceling the triggering of the first information when a first condition is met. The first information is used to request an uplink resource used for transmission of first data, or the first information indicates first delay information of first data. The first data corresponds to M logical channels, the M logical channels are logical channels configured to report delay information, and M is a positive integer. The first condition is related to a first uplink resource and the first data, and the first uplink resource is allocated for transmission of the first data.

Abstract: This application provides a communication method and a communication apparatus. The method may include: A network device sends N synchronization signals, where N is an integer greater than 1. The network device sends M PDCCHs, and a terminal device jointly receives the M PDCCHs. The M PDCCHs are used to schedule system information corresponding to the N synchronization signals or N beams, the system information corresponding to the N synchronization signals or the N beams is system information sent in a same time window, information carried on the M PDCCHs is the same, and M is an integer greater than or equal to 1. According to this application, the information carried on the M PDCCHs is the same, and therefore, the terminal device may jointly receive the M PDCCHs. This can enhance transmission performance.

Abstract: Embodiments of this application provide a device-cloud collaboration system, an encoding and decoding method, and an electronic device. The system includes a server and a terminal device. The server is configured to: perform a first-phase operation of graphics processing, to generate original data of an intermediate result of graphics processing of a current frame; determine first difference data of the intermediate result based on the original data and simulation data; encode the first difference data, to obtain a bitstream; and send the bitstream. The terminal device is configured to: receive the bitstream; decode the bitstream, to obtain second difference data of the intermediate result; determine reconstructed data of the intermediate result based on the second difference data and the simulation data; and perform a second-phase operation of graphics processing based on the reconstructed data, to generate digital content for displaying.

Abstract: In a data mapping method, a first data stream is obtained through outer encoding. Then, inner encoding is performed on the first data stream to obtain a second data stream, where the second data stream includes L codewords obtained through second FEC encoding, L is an integer multiple of 8, each codeword includes n bits, and n is an odd number greater than 1. Then, interleaved mapping is performed on the L codewords to obtain n×L/8 DP-16QAM symbols, where any one of an I component in an X polarization direction, a Q component in the X polarization direction, an I component in a Y polarization direction, or a Q component in the Y polarization direction that are of each DP-16QAM symbol is obtained by mapping 2 bits in the L codewords, and each DP-16QAM symbol is obtained by mapping 8 bits respectively from eight codewords.

Abstract: A method includes performing or skipping performing measurement on a target frequency channel number depending on whether a distance between a terminal device and at least one cell at the target frequency channel number satisfies a distance condition. The target frequency channel number is different from a first frequency channel number, the first frequency channel number is a frequency channel number of a serving cell of the terminal device, the target frequency channel number is any one of a plurality of frequency channel numbers, and the plurality of frequency channel numbers are frequency channel numbers indicated by system information.

Abstract: This application relates to the field of mobile communication, and in particular, to a communication method and apparatus, and a readable storage medium, and may be applied to an NR protocol framework, a 6G protocol framework, or the like. The method includes: A UE obtains N pieces of channel information, and sends first information to a base station, where the first information indicates a compression and feedback method for the N pieces of channel information, and the compression and feedback method includes one or both of the following: a quantity of pieces of channel feedback information or a correspondence between channel feedback information and channel information, where one piece of channel information corresponds to one or more pieces of channel feedback information. According to embodiments of this application, flexibility of channel information feedback can be improved.

Abstract: Embodiments of this application disclose a key management method and an apparatus. The method includes: sending preconfiguration information of a plurality of candidate cells and first key information to a terminal device, where the first key information is for deriving a key for communication between the terminal device and an access network device; and sending a first key to a second access network device to which a target cell to which the terminal device switches belongs, where the first key is a key for communication between the terminal device and the second access network device, and the plurality of candidate cells include the target cell. This method can support subsequent switching and implement effective key management.

Abstract: A positioning method, an apparatus, a storage medium, and a computer program product. In the embodiments, a first apparatus receives a first signal. The first signal is sent by using a first ARP of a second apparatus. The first apparatus receives a second signal. The second signal is sent by using a second ARP of the second apparatus. The first apparatus determines a first measurement result based on first information, the first signal, and the second signal. The first information indicates a distance between the first ARP and the second ARP. The first measurement result is used to position the first apparatus. The first measurement result determined by the first apparatus based on the first signal and the second signal can have a smaller error and higher accuracy, thereby improving positioning accuracy.

Abstract: This application provides a communication method, apparatus, and system, and may be applied to the field of communication technologies, so that a plurality of positioning system information blocks can be transmitted to a terminal device through an air interface by using system information. The method includes: obtaining a plurality of positioning system information blocks, where each positioning system information block includes a plurality of segments; and periodically broadcasting the plurality of positioning system information blocks by using system information, where a periodicity of the plurality of positioning system information blocks includes a plurality of periodicities of the system information, and one segment of each of one or more positioning system information blocks in the plurality of positioning system information blocks is sent in one periodicity of the system information.

Abstract: Embodiments of this disclosure provide a communication method and apparatus. A first user plane function network element receives a first data packet from a terminal device, where the first data packet corresponds to a first application; determines a second user plane function network element based on at least one DNAI and a resource required by the first application, where the at least one DNAI is a DNAI corresponding to the first application, and the second user plane function network element corresponds to a first DNAI in the at least one DNAI; and sends the first data packet to the second user plane function network element.

Abstract: This application provides a display method and an electronic device, relating to the field of terminal technologies. After displaying a first view including a real-scene image and a virtual-scene image, the electronic device may obtain pose information of a user, and display a second view based on the pose information of the user. The second view is obtained based on an adjustment to the first view. Image quality of the virtual-scene image in the first view is better than image quality of a virtual-scene image in the second view, or image quality of the real-scene image in the first view is better than image quality of a real-scene image in the second view.

Abstract: A data processing method is provided, applied to the field of text generation. The method includes: obtaining a first prompt; obtaining a first output by using a first LLM based on the first prompt; constructing a second prompt based on the first output and the first prompt, where the second prompt indicates to improve the first output when the first prompt is determined as a prompt; and obtaining a second output by using the first LLM based on the second prompt, where the second output is an improved first output. In this disclosure, self-learning and evolution can be implemented based on an output self-correction process of the LLM without completely depending on human supervision, or a more accurate reply can be obtained for a highly complex task.