Abstract: An optical communication system includes N optical modules at the local end. Each optical module includes a first optical interface and a second optical interface. A first optical interface of a first optical module in each of the N optical modules at the local end is connected to a peer end through a common optical fiber. A second optical interface of an ith optical module in the N optical modules at the local end is connected to a first optical interface of an (i+1)th optical module in the N optical modules at the local end, and i=1, 2, . . . , N?1.

Abstract: Embodiments of the application disclose a reference signal management method, an apparatus, and a system, to resolve a problem of relatively large system overheads in an existing high frequency beam management process. A terminal device receives first information sent by a network device. The first information is used to indicate a first reference signal group that is on a first carrier, there is a correspondence between the first reference signal group that is on the first carrier and a first reference signal that is on a second carrier, and the first reference signal group that is on the first carrier includes at least two reference signals. The terminal device receives the first reference signal group that is on the first carrier and that is sent by the network device.

Abstract: This application provides a packet verification method, and the method includes: A first network device receives a BIER packet, where packet header information of the BIER packet includes a first keyed-hash message authentication code HMAC, and the first HMAC is used to verify whether the BIER packet is a valid BIER packet; determines a second HMAC based on a first key and first information in the packet header information, where the first information is used to indicate forwarding information of the BIER packet; determines whether the first HMAC is the same as the second HMAC; and when determining that the first HMAC is different from the second HMAC, determines that the BIER packet is an invalid BIER packet.

Abstract: A first wireless device communicates using a frequency bandwidth with multiple wireless devices, and is configured to concurrently transmit trigger frame messages for each of the multiple wireless devices within respective trigger frame frequency bands of the frequency bandwidth to trigger the multiple wireless devices to concurrently transmit respective data units to the first wireless devices within respective frequency segments of the frequency bandwidth.

Abstract: This application provides a method and an apparatus for determining transmit power. The method includes: A terminal device determines a first bit rate of channel state information part 1 CSI-1, where the first bit rate is a bit quantity of the CSI-1 carried on each resource element for transmitting the CSI-1; and the terminal device adjusts transmit power of a physical uplink shared channel PUSCH based on the first bit rate, where the PUSCH is used to carry the CSI-1.

Abstract: Embodiments of this application provide a non-coherent data transmission method and a communication apparatus. In the method, a transmit end device determines, in a first constellation, a first constellation point corresponding to first to-be-modulated bits, where the first constellation point corresponds to P first symbols, P=M*N, M is a positive integer, and N is an integer greater than 1; and sends the P first symbols on N resource units by using M antenna ports, or sends P second symbols determined based on the P first symbols, and foregoes sending demodulation reference signals of the P first symbols or the P second symbols. In the method, a constellation is designed, and each constellation point in the constellation corresponds to a plurality of resource units so that data can be transmitted with no need to transmit a reference signal, and only the data needs to be transmitted.

Abstract: A method includes: establishing, by a first network device, a first BMP session with a second network device, and establishing a second BMP session with a third network device; receiving a first BGP route set sent by the second network device, where the first BGP route set includes a BGP route sent by the second network device to the third network device; receiving a second BGP route set sent by the third network device, where the second BGP route set includes the BGP route received by the third network device from the second network device; and when detecting that the second BGP route set includes a first BGP route but the first BGP route set does not include the first BGP route, determining the first BGP route as an unavailable route.

Abstract: An information writing method is applied to an non-volatile dual in-line memory module (NVDIMM), the NVDIMM includes an NVDIMM controller and a non-volatile memory (NVM), and the method includes receiving, by the NVDIMM controller, a sanitize command from a host, where the sanitize command is used to instruct the NVDIMM controller to sanitize data in the NVM using a first write pattern, and the first write pattern is one of at least two patterns of writing information into the NVM, and writing, by the NVDIMM controller, information into the NVM according to the sanitize command.

Abstract: A packet processing method, including a network node of an access network receiving a first packet sent by a user terminal, where the first packet is used to request an Internet Protocol (IP) address from a Dynamic Host Configuration Protocol (DHCP) server and the network node obtains a second packet, where the second packet includes the first packet, information about a port, and a Media Access Control (MAC) address of the user terminal, the port is a port through which the network node receives the first packet, and the second packet is a packet except a DHCP packet. Additionally, the network node sends the second packet to a controller.

Abstract: A display apparatus including a plurality of pixel circuit rows, where each pixel circuit row includes a plurality of pixel circuits, and each pixel circuit includes a light emitting component and a driving circuit. A gate voltage generation circuit generates a plurality of scan signals. A first scan signal and a second scan signal respectively control write circuits in driving circuits in a first pixel circuit row and a second pixel circuit row. The write circuit adjusts, based on a data voltage for controlling luminance of a light emitting component, a voltage at one end of a storage capacitor to a first voltage. The first scan signal further controls a reset circuit in a driving circuit in a second pixel circuit row, and the reset circuit resets the voltage at one end of the storage capacitor to a second voltage based on a reference voltage.

Abstract: A first correspondence table in a terminal device stores a first correspondence between an identifier of a process running on the terminal device and an identifier of a data stream created by the process. A second correspondence table stores a second correspondence between an identifier of an application and an identifier of a process created by the application. The terminal device receives an identifier of a first data stream from a network security device, finds, in the first correspondence table, a first record where the identifier of the first data stream is stored to obtain an identifier of a process in the first record, finds, in the second correspondence table, a second record where the identifier of the process in the first record is stored to obtain an identifier of an application from the second record, and sends the identifier of the application to the network security device.

Abstract: Aspects of the present application relate to mobile communication devices having active device components and passive device components and, more particularly, to operation of the passive device components to form a backscatter signal from a received forward signal. Forming the backscatter signal may include generating the backscatter signal from the received forward signal without decoding a plurality of sub-signals in the received forward signal, the backscatter signal being a time-domain function of a contiguous subset of the time-domain plurality of sub-signals in the received forward signal. Upon receipt of the backscatter signal, a reception point may obtain information about the mobile communication device that contains the passive device components. Such information may relate to timing, position and identity.

Abstract: A data processing method, a terminal, and a base station to perform power headroom report (PHR) reporting for an sounding reference signal only component carrier (SRS-only CC). The method includes a terminal generating a power headroom report for a SRS-only CC when a preset condition is satisfied. The method further includes the terminal sending the PHR report to a base station.

Abstract: A method of point cloud coding (PCC) implemented by a video decoder. The method includes receiving an encoded bitstream including a group of frames header, the group of frames header specifying a profile and a level of the encoded bitstream, and decoding the encoded bitstream.

Abstract: A video processing method includes: receiving a video stream from a camera component; converting the video stream into at least one first data packet, where the at least one first data packet is independently encoded or decoded; and storing a first data packet obtained in a first reporting cycle as a first video clip.

Abstract: A method for creating a network simulation platform that has a first black box model, includes: obtaining a candidate network performance indicator and feature information related to the candidate network performance indicator, where the feature information related to the candidate network performance indicator refers to a part or all of feature information needed to obtain the candidate network performance indicator; and training a machine learning model to obtain the first black box model, where an output parameter of the first black box model is the candidate network performance indicator, input parameters of the first black box model are the feature information related to the candidate network performance indicator, and the first black box model is used to simulate the candidate network performance indicator. The solutions provided help reduce simulation complexity and are applicable to large-scale network simulation.

Abstract: In an example method of present application, a terminal device obtains resource indication information. The resource indication information indicates frequency domain resources of a data channel of a terminal device. The resource indication information comprises S bits, where S is a positive integer. The terminal device determines the frequency domain resources of the data channel of the terminal device based on the resource indication information.

Abstract: A radio resource configuration adjustment method includes detecting, by user equipment, an overheating problem or that the overheating problem is alleviated, and sending, by the user equipment, a first message to a network device, where the first message is used to notify the network device that the overheating problem occurs in the user equipment or the overheating problem is alleviated; receiving, by the user equipment, a response message sent by the network device, where the response message is used to instruct the user equipment to perform one of the following operations, and the operations include deactivating a secondary serving cell, activating a secondary serving cell, releasing a secondary serving cell, and adding a secondary serving cell; and deactivating, by the user equipment, a secondary serving cell, or activating a secondary serving cell, or releasing a secondary serving cell, or adding a secondary serving cell according to the response message.

Abstract: A neural network computing chip includes a translation circuit and a computing circuit. After input data is processed by the translation circuit, a value of each element of the data input into the computing circuit is not a negative number, thereby meeting a value limitation condition imposed by the computing circuit on the input data.

Abstract: Various embodiments provide a random access method and apparatus. In those embodiments, available random access resources can be grouped, by a network device, into a plurality of random access resource groups. The network device can send information about the plurality of random access resource groups to a terminal device, and receives a random access request sent by the terminal device based on the information about the plurality of random access resources groups. The network device can determine a target random access resource group to which a random access resource used for the random access request belongs. The network device can determine an uplink transmission capability of the terminal device based on the target random access resource group.