Abstract: This application provides a clock frequency determining method and a clock frequency determining apparatus. The method includes: An access network device receives a combined optical signal from a radio over fiber RoF device, where the combined optical signal is obtained by coupling an optical signal of a first frequency and an optical signal of a second frequency; the access network device converts the combined optical signal into an electrical signal; and the access network device sets a local clock frequency based on a signal frequency of the electrical signal and a first preset rule, where the signal frequency of the electrical signal is equal to an absolute value of a frequency difference between the first frequency and the second frequency.

Abstract: This application discloses a communication method using artificial intelligence and a communication apparatus, to reduce transmission of a model file of an AI service when the AI service is executed. The method is: A first communication apparatus receives information about an AI model of an AI service from a second communication apparatus, where the AI model includes N sub-network models, the N sub-network models respectively correspond to N model identifiers IDs, the first communication apparatus may determine the N model IDs, or the second communication apparatus may determine the N model IDs, the information about the AI model includes model files of X sub-network models in the N sub-network models, N and X are positive integers, N is greater than 1, and X is less than or equal to N; and the first communication apparatus executes the AI service based on the information about the AI model.

Abstract: Embodiments of this application provide a computing node management method and a related system. In technical solutions provided in this application, a first device is mapped to a worker node on an edge node, a task circuit descriptor is determined based on a scheduling circuit descriptor and a virtual node context corresponding to the worker node to which the first device is mapped. First information that includes the task circuit descriptor is sent to the first device, and the first device creates a task circuit instance based on the task circuit descriptor in the first information. In doing so, a computing task can be executed on a terminal device or a network node that does not support a scheduling circuit descriptor type, so as to deploy the computing task on the terminal device or the network node.

Abstract: Embodiments of this application provide a channel configuration method. The method includes: determining, by a base station, a quantity of system flows based on a random access channel detection result; configuring, by the base station, an uplink channel and a downlink channel based on the quantity of system flows, where the uplink channel is a radio frequency channel used for uplink transmission, and the downlink channel is a radio frequency channel used for downlink transmission; and transmitting, by the base station, data based on the configured uplink channel and the configured downlink channel. Therefore, while system transmission performance is ensured, a communication requirement can be flexibly met, and system processing resources and transmission resources can be saved.

Abstract: Embodiments of the present invention provide a signal processing method and apparatus. The method includes: performing M-way filtering on an input signal to obtain M filtered signals, performing extraction on M filtered signals separately to obtain M extracted signals, performing fast Fourier transform (FFT) on the M extracted signals separately to obtain M frequency-domain signals, and finally determining output signals according to the M frequency-domain signals. According to the embodiments of the present invention, signal filtering and extraction are performed and then FFT is performed.

Abstract: Embodiments of this application provide a channel configuration method. The method includes: determining, by a base station, a quantity of system flows based on a random access channel detection result; configuring, by the base station, an uplink channel and a downlink channel based on the quantity of system flows, where the uplink channel is a radio frequency channel used for uplink transmission, and the downlink channel is a radio frequency channel used for downlink transmission; and transmitting, by the base station, data based on the configured uplink channel and the configured downlink channel. Therefore, while system transmission performance is ensured, a communication requirement can be flexibly met, and system processing resources and transmission resources can be saved.

Abstract: The present disclosure provides a data format conversion apparatus and method, and a buffer chip. The data format conversion apparatus is disposed on the buffer chip in a memory; a control module is disposed for sending a control instruction to a conversion module when obtaining a data copy command; and a conversion module is disposed for completing data format conversion and storage address mapping on to-be-converted data according to the received control instruction. In this way, a prior-art problem of additionally occupying computing resources and computation time of an accelerated computation unit due to a data format conversion unit disposed in the accelerated computation unit is avoided, the amount of data transmission between a main memory and a device memory is reduced without additionally occupying computing resources, and the computation precision is ensured while the computation efficiency is improved.

Abstract: Embodiments of the present invention disclose an electronic device and a graphics processing unit card, which can improve data input and output capabilities. The electronic device includes a graphics processing unit card and a mainboard. The graphics processing unit card includes a main chip and M first PCIe interfaces electrically connected to the main chip, where M is an integer greater than or equal to 2. The mainboard includes a processing unit and M second PCIe interfaces connected to the processing unit, and the M second PCIe interfaces are respectively connected to the M first PCIe interfaces.

Abstract: The present disclosure provides a data format conversion apparatus and method, and a buffer chip. The data format conversion apparatus is disposed on the buffer chip in a memory; a control module is disposed for sending a control instruction to a conversion module when obtaining a data copy command; and a conversion module is disposed for completing data format conversion and storage address mapping on to-be-converted data according to the received control instruction. In this way, a prior-art problem of additionally occupying computing resources and computation time of an accelerated computation unit due to a data format conversion unit disposed in the accelerated computation unit is avoided, the amount of data transmission between a main memory and a device memory is reduced without additionally occupying computing resources, and the computation precision is ensured while the computation efficiency is improved.

Abstract: Embodiments of the present invention provide a signal processing method and apparatus. The method includes: performing M-way filtering on an input signal to obtain M filtered signals, performing extraction on M filtered signals separately to obtain M extracted signals, performing fast Fourier transform (FFT) on the M extracted signals separately to obtain M frequency-domain signals, and finally determining output signals according to the M frequency-domain signals. According to the embodiments of the present invention, signal filtering and extraction are performed and then FFT is performed.

Abstract: Embodiments of the present invention disclose an electronic device and a graphics processing unit card, which can improve data input and output capabilities. The electronic device includes a graphics processing unit card and a mainboard. The graphics processing unit card includes a main chip and M first PCIe interfaces electrically connected to the main chip, where M is an integer greater than or equal to 2. The mainboard includes a processing unit and M second PCIe interfaces connected to the processing unit, and the M second PCIe interfaces are respectively connected to the M first PCIe interfaces.

Abstract: A data processing apparatus and a data processing method are provided. The data processing apparatus includes a data processing module, a switching module, and a scheduling module. The scheduling module coordinates a quantity of tasks corresponding to each data processing module. When a quantity of to-be-processed tasks corresponding to any data processing module reaches a preset threshold, the scheduling module instructs the switching module to send task data received by the foregoing any data processing module to a data processing module whose quantity of to-be-processed tasks does not reach the preset threshold for processing. In the foregoing technical solution, each general-purpose server corresponds to one data processing module. When a quantity of tasks corresponding to a data processing module is relatively large, the scheduling module controls the switching module to dispatch task data to a relatively idle data processing module, thereby avoiding a problem of system resource waste.

Abstract: A data transmission method includes dividing a channel into two sub-channels at a node, where the node is a point at which the channel and a backplane intersect; and performing data transmission with at least one server using the sub-channels. In this process, each sub-channel obtained by means of division can exclusively use all bandwidth of an original channel, so that a server can be connected to a switch using a plurality of sub-channels and occupy bandwidth of a plurality of channels. Therefore, in the embodiments of the present disclosure, a low-bandwidth switch can be used to implement large-scale real-time data exchange in a centralized data processing process, thereby reducing costs of the switch to some extent.

Abstract: Embodiments of the present invention provide a data transmission method and apparatus. ROHC packets that use a same Context ID are encapsulated into MAC PDU, wherein the MAC PDU is formed by a MAC PDU packet header and a MAC PDU payload. The Context ID of the ROHC packets is carried in the MAC PDU packet header, and the Context ID is not carried in the ROHC packets. The MAC PDU is sent. In this way, transmission resources are saved, and transmission efficiency is improved.

Abstract: The present invention provides a data transmission method, apparatus and system, which relate to the field of the wireless network technology. The data transmission method provided in the embodiment of the present invention includes: acquiring a downlink data packet sent to a terminal, in which the downlink data packet does not have a high layer protocol stack header; sending the downlink data packet to the terminal through an air interface; Through the present invention, the data amount in the air interface transmission is reduced to a great extent, the efficiency of air interface transmission is substantially enhanced, and the air interface resource is saved, thereby facilitating the enrichment and development of wireless services and satisfying the demands of users. The present invention is applicable to a scenario of air interface transmission in a wireless network.

Abstract: A method for obtaining feedback delay includes: obtaining a target time elapsed in a process from when a remote radio end receives uplink data sent from a user end to when the remote radio end sends out feedback information responsive to the uplink data to the user end, wherein the feedback information responsive to the uplink data is fed back by a processing node to the remote radio end; calculating a feedback delay by adding the target time and an air interface transmission propagation delay, wherein the air interface transmission propagation delay is a transmission time of the uplink data from the user end to the remote radio end; and configuring, by the processing node, an uplink hybrid automatic repeat request (HARQ) ACK/NACK feedback interval to be the feedback delay.

Abstract: The AAA server generates and delivers a new HA-RK before expiry of the old HA-RK, thus eliminating the time gap between expiry of the old HA-RK and obtaining of the new HA-RK and making the MIP registration seamless. In the system, if the remaining lifetime of the old HA-RK is less than or equal to the lifecycle of the MSK in the EAP process, a new HA-RK is delivered; otherwise, no new HA-RK needs to be delivered. If both a new HA-RK and an old HA-RK are valid on the network entity at a time, then only the old HA-RK applies and the new HA-RK is not active until expiry of the old HA-RK. Alternatively, both the new HA-RK and the old HA-RK are active concurrently, and are differentiated by an SPI.

Abstract: A mobile station (MS) reattaching method, an MS reattaching system, a gateway, and a base station (BS) are provided. The method includes: determining, according to mobility restriction information, whether an MS is allowed to access a target BS; and if the MS is allowed to access the target BS, returning a handover response (HO_Rsp) indicating that MS reattachment is allowed to the MS. An MS reattaching system, a gateway, and a BS are further provided. An access service network-gateway (ASN-GW) or a serving BS determines, according to mobility restriction information, whether a current target BS is an appropriate target BS to allow the MS to access, so as to satisfy the mobility restriction.

Abstract: A communication method and a related apparatus for header compression by using an automatic retransmission mechanism are disclosed. The method comprises determining with a receive end parameters required for performing header compression and an ARQ through negotiation, constructing a lower-layer PDU that comprises header compression information, and sending the PDU to a receive end. By using methods provided in the embodiments of the present invention, combination of a header compression mechanism and an ARQ mechanism may be implemented, thereby improving header compression efficiency and accuracy, and saving air interface resources.

Abstract: A method and system for generating and distributing a mobile IP key are provided. The method mainly includes the following steps. During the course of access validation or re-authorization and re-authentication, a sub-key between a mobile node (MN) and an authentication, authorization, and accounting (AAA) server is computed, and an authentication extension (AE) between the MN and the AAA server is computed according to the sub-key. The AE is carried in a mobile IP registration request or a binding update (BU) request initiated by the MN, a home agent (HA) requests the key from the AAA server according to the AE in the registration request or the BU request, and the AAA server distributes the key to the HA. By using the present invention, a PMIP-client can compute the AE between the MN and the AAA server (MN-AAA-AE) without the need of distributing the key between the MN and the AAA server.