713 results about "Protocol stack" patented technology

The invention relates to the technical field of industrial communication networks, in particular to a method for quickly forwarding messages from a PCIE (Peripheral Component Interface Express) interface to a WIA (Wireless Interface Architecture) interface, which comprises the following steps of: simultaneously receiving PCIE messages and WIA-FA protocol messages through a hardware logic circuit; analyzing the message in a data link layer to obtain an analysis result comprising data load and address information; packaging the analysis result according to a pre-configuration rule to generate a data frame conforming to a target protocol; and constructing a sending descriptor for the generated data frame, and sending the data frame from a corresponding interface through a direct memory access mechanism. According to the method, parallel analysis and protocol conversion of messages are achieved through a hardware logic circuit, fast address conversion is achieved through a pre-configured address mapping table, and zero-copy data transmission is achieved through a direct memory access mechanism. According to the invention, software protocol stack processing is replaced by a hardware processing flow, so that communication delay and CPU resource consumption are effectively reduced.

The invention relates to the technical field of computers, discloses a heterogeneous computing low-delay communication method and system, and aims to solve the problem of high delay caused by high communication protocol overhead, lack of dynamic scheduling collaboration, memory migration redundancy and non-uniform cross-node communication abstraction in existing heterogeneous computing. The method comprises the following steps: receiving a task scheduling request and analyzing a task dependency graph; tasks are dynamically allocated based on node loads and link states; rDMA, NVLink or PCIe straight-through protocols are adaptively selected according to node types to establish communication channels; zero-copy data exchange is realized through a shared memory mapping buffer area; hardware timestamps are utilized to synchronize feedback delays with PTP to optimize scheduling. The system comprises a heterogeneous computing node cluster, a unified communication scheduling controller, a low-delay communication protocol stack, a shared memory mapping buffer area and a communication delay sensing task distributor. According to the scheme, the communication delay is remarkably reduced, and the throughput and the task execution efficiency are improved.

The invention relates to the technical field of data lines, and particularly discloses a data line system and a data line for intelligently switching data transmission and charging, and the system comprises a dual-core synchronization management module which is used for enabling dual cores to enter an initial detection state through encryption synchronization signaling when equipment is connected; the asynchronous signal processing module is used for generating state judgment parameters through multi-scale sliding window processing and time-frequency domain feature fusion; the consensus decision arbitration module outputs a backtracking trigger signal through dynamic projection transformation and self-adaptive threshold comparison; the state backtracking recovery module is used for generating a retry instruction with a random delay period based on the historical backtracking success rate and the signal quality evaluation; the safety mode control module is used for identifying dominant features by analyzing historical failure records and switching to a safety operation mode; through distributed dual-core cooperative processing and an intelligent fault recovery mechanism, the technical problems of confusion of protocol stacks and deadlock of a state machine in a complex electromagnetic environment are solved, and the anti-interference capability and reliability of the system are improved.

Disclosed are a method, an apparatus and a device for performing hardware acceleration on an L2TP message and a storage medium. The method includes: determining whether the current message requiring hardware acceleration is an L2TP type message according to a first matching rule, the first matching rule is a protocol stack configuration information only used to identify the header type of the current message; selecting a corresponding acceleration processing strategy according to the determination result, when the determination result is an plain message of a non-L2TP type, performing acceleration processing on the plain message according to a preset protocol stack standard, and when the determination result is an L2TP message, performing acceleration processing on the L2TP message according to a second matching rule, the second matching rule is protocol stack configuration information for matching inner layer information of the L2TP message.

The invention relates to a multi-modal network dynamic loading and management system and method based on modal virtualization, and belongs to the technical field of network system structures and virtualization. By constructing a modal virtualization layer and a modal description language analysis mechanism, the limitation that traditional network virtualization is only oriented to a single protocol stack is broken through, unified packaging and isolation of multiple network modalities such as IP, TSN, ICN and custom protocols are achieved, the dual-modal state snapshot and traffic mirroring technology is utilized, and the network modality is improved. The problem of service interruption in the online switching process of the network modes is solved; and further in combination with a vectorized heterogeneous resource elastic scheduling model, global optimal configuration and on-demand mapping of the CPU, the GPU, the FPGA and the P4 programmable switching chip are realized.

The invention relates to an intelligent ship network optimization method, system and device based on multi-link convergence and a medium. The method comprises the following steps: firstly, acquiring multi-network link connection parameters of the intelligent ship, constructing an adaptive environment, modifying a protocol stack, and integrating a physical link into a virtual link to realize resource convergence; and based on the real-time parameters of the virtual link and the physical link, dynamically distributing traffic by adopting an improved aggregation protocol, and generating a load balancing scheme. And then, regularly sending a detection packet quality index, and predicting a link quality trend in combination with historical data and navigation longitude and latitude. And finally, dynamically adjusting flow distribution according to a prediction result, an application real-time demand, a bandwidth demand and a current position tariff characteristic, and generating a ship-shore communication scheme considering both efficiency and cost. By adopting the method, the stability, reliability and economy of ship-shore communication of the intelligent ship can be effectively enhanced, and the method is suitable for multi-scene network monitoring optimization.

The invention discloses a cryptographic algorithm adaptation and hardware encryption and decryption acceleration method suitable for a gateway protocol, deep integration of a cryptographic algorithm is realized through protocol stack-level native transformation, software and hardware collaborative design is adopted, and through innovative mechanisms such as multi-thread concurrent encryption, asynchronous interrupt processing and DMA data interaction, the hardware encryption and decryption acceleration of the cryptographic algorithm is realized. The processing capability in a high throughput scene is improved; an intelligent strategy engine is introduced to realize data packet dynamic classification and encrypted resource optimization scheduling, and the system performance is maximized while the security is ensured; according to the technical scheme, key full-life-cycle management and control are achieved through the HSM, the requirement for equal insurance 2.0 is met, multi-platform deployment is supported by adopting modular design, and compared with the prior art, the method can be flexibly adapted to various application scenes such as various domestic chip architectures, embedded devices, security gateways and industrial controllers, and the method is suitable for large-scale popularization and application. The problems of high platform dependence, difficulty in transplantation and the like existing in national secret IPSec implementation are solved, and a better secure communication solution is provided for a localized environment.

The invention provides a PXE network card initialization method and device compatible with 64-bit addressing and a medium, and relates to the technical field of network card initialization, and the method comprises the steps: discovering a network card device; reading a PCI configuration space of the network card equipment, obtaining information of an extended ROM base address register, and mapping a network card Option ROM to a memory shadow region; when the access of the memory mapping input and output mode fails, the initialization code performs read-write operation on the hardware register through a self-defined capability structure in a PCI configuration space of the network card equipment; based on the successfully accessed hardware register, network card hardware initialization is completed, and a PXE protocol stack structural body is established in a memory; registering system firmware as PXE starting equipment, and entering a protocol interaction stage with a PXE server; according to the invention, smooth development of a subsequent network boot flow is guaranteed, and the deployment success rate and the system stability in a large-scale batch installation scene are improved.

Systems, methods, and instrumentalities are described herein related to data treatment in the protocol stack. An example device may include a processor configured to perform one or more actions. For example, a device (e.g., a wireless transmit / receive unit (WTRU)) may (e.g., be configured to) receive first transmission configuration information indicating a first transmission configuration. The first transmission configuration may indicate a first mapping condition and / or a first mapping between a quality-of-service (QoS) flow and a first data radio bearer (DRB). The device may receive second transmission configuration information indicating a second transmission configuration. The second transmission configuration may indicate a second mapping condition and / or a second mapping between the QoS flow and a second DRB. The device may determine that a condition is satisfied. The device may select a transmission configuration from the first and / or second transmission configuration based on the determination that the condition.

The invention relates to a task-oriented semantic communication-oriented adaptive source channel coding system, which belongs to the field of wireless communication, and comprises a sending end for extracting a semantic feature map for evaluation from input data through a feature extractor initialized based on a pre-training large model, executing nested quantization and arithmetic coding based on a calculated importance score, and sending the semantic feature map to a task-oriented semantic communication-oriented adaptive source channel coding system; generating a scalable semantic bit stream with importance levels; the physical layer is used for carrying out reordering and grouping according to importance levels of bit streams, a channel encoder is combined with an interleaver to realize unequal error protection of semantic matching, and encoded bits are mapped to sign bits with different fault-tolerant capabilities in a constellation diagram through division modulation; and a receiving end: recovering the semantic feature map through arithmetic decoding and nested inverse quantization. According to the invention, on the premise of keeping compatibility with a digital communication protocol stack, through distortion-driven joint rate self-adaption, the transmission effectiveness for machine tasks and human vision is obviously improved under a limited bandwidth.

The invention provides a monitoring method and system for a high-frequency transaction scene based on an eBPF. The monitoring method comprises the steps that a pre-compiled eBPF byte code program is loaded into a Linux kernel; an eBPF probe is deployed at an event trigger point of each layer of the network protocol stack; establishing a data storage and processing mechanism in a kernel space by using an eBPF Map, acquiring real-time data through a probe, and performing preliminary analysis; further processing is carried out based on the analysis result, and if abnormity is detected, an alarm is given and information is recorded. The technical problem that microsecond-level continuous monitoring and accurate acquisition of abnormal events cannot be realized in high-frequency transactions is solved.

The invention relates to the technical field of integrated circuits and distributed computing, in particular to a chip computing network-oriented clock synchronization method, which is convenient for a receiving end to quickly identify and reduce analysis overhead by customizing a simplified synchronization frame format. A hardware synchronization module is deployed between a physical layer and a link layer to record a high-precision timestamp to eliminate an error caused by protocol stack processing, and a slave node calculates clock skew based on timestamp information interacted by a master node and a slave node and corrects the clock skew in real time to realize accurate synchronization. Master-slave roles are independently configured through each communication port, and automatic topology discovery is supported to adapt to a complex network structure. According to the method, an existing routing protocol and a physical link of the chip are reused, hardware overhead is reduced, synchronization precision is high, flexibility is high, the method can be widely applied to a computing network formed by an artificial intelligence acceleration chip graphics processor, a data processor and the like, and multi-chip cooperative computing efficiency and data consistency are effectively improved.

The invention provides a dual-CAN channel fusion J1939 protocol stack of a vehicle-mounted terminal and a parallel communication diagnosis method, and aims to solve the problems that an existing dual-CAN channel terminal lacks a protocol layer parallel processing mechanism and an intelligent routing strategy, communication and diagnosis conflicts still exist, and a J1939 protocol is insufficient in adaptation and poor in baud rate adaptation flexibility. The method comprises the following steps: S1, constructing a dual-CAN FD channel and dynamic baud rate adaptive detection mechanism, and providing a link basis for service isolation; s2, integrating J1939 and UDSonCAN dual protocol stacks based on dual CAN FD channels, and establishing data mapping to realize data collaboration between protocols; s3, designing an intelligent message routing and channel flow monitoring mechanism, and ensuring conflict-free parallel transmission of communication and diagnosis services; and S4, newly adding J1939 network management, configuration parameter persistence and firmware online upgrading functions, and improving the maintainability of the terminal. According to the invention, the advantages of dual-CAN channel hardware are fully exerted, efficient cooperation of communication and diagnosis and protocol deep compatibility are realized, and the compatibility, flexibility and stability of the terminal are greatly improved.

The invention provides a unified master control new energy automobile charging interface compatible method and system, and is applied to the field of electric data processing. By introducing a physical layer abstraction module (PLAM), decoupling of a communication upper-layer protocol and a bottom-layer physical driver is realized, the problems that a traditional main control structure is fixed and physical communication interfaces cannot be flexibly switched are solved, when it is detected that the communication controller cannot complete physical layer switching, each physical layer driving interface is automatically packaged, unified access is performed through a PLAM layer, and the switching efficiency of the communication controller is improved. The communication standard is dynamically identified by combining the characteristics of the signal acquired during charging gun insertion, and if the identification fails, the compatible protocol stack can still be loaded and the available resources can be dynamically bound based on the PLAM, so that the flexible scheduling of the physical resources (such as DMA, interruption and a cache pool) is realized, the communication compatibility and adaptation capability are improved, and the support capability of the vehicle end to various charging standards is obviously enhanced.

The present disclosure relates to a communication technique merging IoT technology with a 5th generation (5G) or pre-5G communication system for supporting a data transmission rate higher than that of a 4th generation (4G) communication system such as long term evolution (LTE), and a system therefor. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail, and security and safety related services) on the basis of 5G communication technologies and IoT-related technologies. Various embodiments of the present disclosure may provide a method and a device for bandwidth part switching in consideration of a dormant bandwidth part.

Methods, apparatuses, and procedures for enhancements to data forwarding for dual active protocol stack handover in wireless communications are disclosed. In an example, a method implemented by a wireless transmit / receive unit for wireless communications includes determining a first point and a second point for time prediction, and a data forwarding window is defined by the first point and the second point. The method also includes sending, to a network entity, a measurement report including the first point and the second point, and receiving a feedback message including information indicating at least one of a third point or a fourth point for time prediction. At least one of the third point or the fourth point is generated based on the data forwarding window.

The invention provides a protocol stack system for model training, a model training method and related equipment, and relates to the technical field of communication. The protocol stack system comprises a physical layer, a transmission layer, a feature layer, an intelligent control layer and an application layer. The application layer performs a round of training on an artificial intelligence AI model by using each computing power node, and calculates the gradient of the AI model; the feature layer encodes the gradient of the AI model calculated by each computing power node to obtain an encoding result corresponding to each computing power node; the intelligent control layer determines an optimal path based on the computing power information of each computing power node, the current network state and a routing table among the computing power nodes; and the transmission layer and the physical layer perform full reduction operation on the coding result corresponding to each computing power node according to the optimal path, so that each computing power node obtains an average value of the gradient of the AI model, and the AI model is updated. Through the technical means, the problems of low data transmission efficiency, high delay and the like in distributed model training in related technologies are solved.

The invention provides a malicious request interception system based on multi-dimensional behavior analysis and cloud-ground collaboration, relates to the technical field of network security, and analyzes normal equipment characteristics, a user behavior sequence and a cloud malicious equipment blacklist by collecting TCP / IP protocol stack characteristics and combining dynamic characteristics of the user behavior sequence. First interception is performed according to an analysis structure, deep identification is performed on a user behavior sequence after the first interception based on time sequence analysis and clustering analysis, and second interception is performed according to an identification result, so that the problems that a static rule cannot identify novel attacks and group attack features are difficult to capture are solved; and carrying out content verification on the user behavior sequence after the second interception, and carrying out third interception according to a verification result, thereby realizing dynamic adaptation of a service scene, solving the problem of poor static rule adaptability, carrying out whole system synchronization on all intercepted malicious logs, avoiding cross-node missed interception of malicious requests, and forming a defense iteration closed loop.

An apparatus performs evaluating, with a user equipment of a communication network, before detaching from a source cell a conditional handover execution condition fulfillment for a conditional handover with the user equipment from the source cell to at least one target cell of the communication network; and based on the evaluating, detaching from the source cell for performing the conditional handover to a target cell of the at least one target cell. Further, an apparatus performs sending toward user equipment information comprising a configuration of a conditional handover, wherein the information causes the user equipment to evaluate a conditional handover execution condition fulfillment before detaching from the source cell for at least one target cell based on an indication of the conditional handover execution condition fulfillment to a first target cell of the at least one target cell that does not support a dual active protocol stack configuration.

The invention belongs to the technical field of intelligent building automation communication, and discloses a KNX protocol hierarchical communication system and method, and the system comprises a microcontroller subsystem and a main control subsystem. The main control subsystem runs a standard Linux operating system and deploys a standard KNX protocol stack, the standard KNX protocol stack comprises a link layer, a network layer, a transmission layer and an application layer and provides a standard programming interface for upper-layer application, and a Web server running on the same Linux system calls the standard programming interface to process KNX communication; the microcontroller subsystem is used for realizing a physical layer function of a KNX protocol; the master control subsystem is connected with the microcontroller subsystem through a USB interface, and the USB interface adopts a private protocol to carry out data transmission. By decoupling a hardware processing layer and a software protocol part, the overall architecture of hierarchical communication is used as a KNX equipment communication node, a complex algorithm can be realized, a bus signal can be responded at a microsecond-level speed, and completeness and reliability of data transmission are ensured by constructing a self-defined private protocol.

To manage a power coordination configuration when performing a dual active protocol stack (DAPS) procedure, a UE receives (702A), from a radio access network (RAN), a power coordination configuration for application by the UE to constrain uplink power when communicating with a source cell and a target cell of the RAN, initiates (704A) the DAPS procedure in accordance with the power coordination configuration, and in response to detecting a trigger condition, releases (706A) the power coordination configuration.

The invention provides a software operation synchronization method and system based on a dual-chip architecture, and abandons a traditional mode depending on a UART / SPI / CAN communication protocol or an additional synchronization circuit. Firstly, a unique PWM duty ratio mapping relation with any difference not smaller than 5% is preset for the initial state, the system self-checking state, the OTA upgrading state, the running state, the fault state, the dormancy preparation state and other running states of the double-chip system, and then a chip A and a chip B continuously output PWM signals matched with the current states of the chip A and the chip B through common GPIO pins in a push-pull output mode. Meanwhile, PWM signals of GPIO pins of the opposite side are collected in real time in a bidirectional mode through respective hardware capture units, the duty ratio is analyzed to obtain the state of the opposite side, response operation is executed according to preset logic, synchronization failures caused by communication delay and data frame error codes of a traditional software protocol are effectively avoided, the system stability is guaranteed, meanwhile, a complex protocol stack does not need to be designed, and the cost is reduced. The CPU load rate is reduced, an additional synchronous circuit is omitted, the chip area and power consumption are reduced, and the hardware cost is reduced.

The invention discloses a task synchronization and scheduling method for compensating CAN bus clock drift, which relates to the technical field of industrial automation control, and comprises the following four steps: initializing a system, loading a real-time protocol stack, completing hardware self-inspection and clock calibration, and sending a ready signal after confirming that a link is smooth; performing synchronization parameter configuration and task planning, defining clock synchronization reference parameters, dividing four types of tasks and setting priorities; performing dynamic calibration and data buffering on master and slave clocks, broadcasting a synchronous message with a timestamp by a master station, correcting a local timer by a slave station through a soft phase-locked loop, and constructing an annular buffer area to realize time domain decoupling; task cooperative scheduling and abnormal fault tolerance are carried out, a control task is triggered based on a calibration clock, edge calculation is carried out to reconstruct a motion state and feed-forward compensation is carried out, a multi-dimensional state is monitored in real time, and a fault tolerance mechanism is triggered. According to the method, clock synchronization precision and control stability are greatly improved, bus bandwidth limitation is broken through, high dynamic tracking precision is achieved, and long-term stable operation of the system is guaranteed.

The invention belongs to the technical field of communication, particularly relates to a self-adaptive connector communication system based on an industrial Ethernet, and aims to solve the problems of communication interruption and poor reliability caused by interface incompatibility, link configuration stiffness and environmental interference in an industrial field. The system comprises a self-adaptive physical interface module, a link state sensing module, a protocol stack dynamic reconstruction module, an environment interference compensation module and a central coordination controller, and automatic interface identification, link parameter dynamic adjustment and active interference compensation are realized through cooperation of multiple modules. According to the scheme, the communication reliability and the environmental adaptability are remarkably improved, millisecond-level interface switching and seamless redundancy switching are supported, and the high-reliability and low-delay communication requirements of industrial automation are met.

The application discloses a kind of power industrial control terminal network isolation method and system based on process security label binding;Belong to the technical field of power system network security, its operating steps include: decoupling physical network resources into independent partitions and mapping to independent user-mode network protocol stack instances;Through the bottom flow direction rule, the in-bound traffic is accurately delivered to the corresponding partition;Identify process security label at the application layer, establish the forced mapping of process and specific protocol stack instance and link;Through the controlled shared memory channel, realize the safe data interaction between partitions.The application realizes strong logical isolation on unified hardware, through the forced binding of process identity and network link, reduces the privilege promotion and horizontal penetration risk caused by traditional protocol stack sharing, while limiting the scope of failure impact, without relying on external physical isolation equipment, significantly improves the endogenous security protection capability of industrial control system network boundary.

A method for sharing a radio frequency (RF) resource among multi-subscriber identification module (SIM) stacks in a multi-SIM device, includes: receiving two paging requests from the multi-SIM stacks for performing communication with a network entity via the RF resource; transmitting the two paging received requests to the network entity via the RF resource; detecting a page sharing conflict between the two paging requests of the multi-SIM stacks; determining, based on the detection of the page sharing conflict, a connection status of a connection between each stack of the multi-SIM stacks and the network entity. The connection status indicates a communication medium via which each stack of the multi-SIM stacks is connected with the network entity. The method includes prioritizing, based on the determined connection status, a grant of the RF resource to a stack of the multi-SIM stacks whose connection status indicates a cellular connection as the communication medium.

The utility model discloses an unmanned aerial vehicle data unvarnished transmission device based on an LWIP protocol stack, and particularly relates to the field of transmission equipment. Comprising a network interface unit, a controller, a radio frequency interface unit and a transceiving assembly, and the transceiving assembly is used for preprocessing a radio frequency signal and sending the radio frequency signal to a target unmanned aerial vehicle; the receiving module is also used for receiving a downlink wireless signal of the target unmanned aerial vehicle and converting the downlink wireless signal into a radio frequency signal; the controller is used for sending the uplink data packet to the protocol stack for encapsulation processing and processing the encapsulated data packet into a baseband signal, and is also used for processing the baseband signal into a digital signal and sending the digital signal to the protocol stack for de-encapsulation processing to obtain a downlink data packet; the radio frequency interface unit is used for converting a baseband signal into a radio frequency signal, and is also used for converting the preprocessed radio frequency signal into the baseband signal; and the network interface unit is also used for sending the downlink data packet to the ground end. The time edge of data transmission can be reduced, and the transmission efficiency of unvarnished transmission equipment is improved.

Embodiments of the present disclosure are related an open radio access network (ORAN) based base station (BS). The BS comprising at least one radio unit (RU) comprising a plurality of antenna ports, at least one distributed unit (DU) and an interface for a communication between said RU and said DU. The RU is configured to support one or more virtual sub-sectors simultaneously, wherein each virtual sub-sector cover a pre-defined geographical area in both horizontal and vertical directions. Each virtual sub-sector is associated with a specific set of antenna ports of the RU. Each virtual sub-sector provides a coverage for one of distinct geographical areas and partially overlapping geographical areas. The DU associates a UE with a virtual sub-sector. The DU performs at least one of a SU-MIMO within a virtual sub-sector for a UE associated with said virtual sub-sector, and a MU-MIMO across the UEs in different virtual sub-sectors.

The present application relates to the technical field of network communication, and particularly relates to a RoCE network flow control method and system, the method comprising: performing static code analysis on source code of a RoCE protocol stack, identifying key function points on a data processing path, and generating a probe point set; processing historical monitoring data corresponding to the probe point set, calculating an utility value for each probe point; screening the probe points based on the utility values; deploying probes at the screened probe points, collecting network layer monitoring data and host layer monitoring data, and controlling network flow based on the network layer monitoring data and the host layer monitoring data.

The invention discloses a multimode communication method, system and equipment for a fusion terminal, and relates to the technical field of wireless communication, and the method comprises the steps: carrying out the dynamic radio frequency environment perception of a communication channel through a built-in SDR front end, and generating a communication entropy; after a transmission task is received, an entropy-semantic state and a fuzzy communication group are determined according to semantic value classification and communication entropy of a content stream; protocol fragments are matched from a protocol function library, and an instantaneous protocol stack is assembled through dynamic link and logic combination; and the resource scheduler splits the instant protocol stack and binds the instant protocol stack to an adaptive physical communication module, and a transmission task is executed. According to the method and the device, the technical problems of resource waste and low communication efficiency caused by incapability of dynamically adapting to a complex changing radio frequency environment in the prior art are solved, and the technical effects of remarkably improving the communication efficiency and the resource utilization rate through self-adaptive radio frequency sensing and multi-mode protocol stack dynamic optimization are achieved.