23 results about "CA protocol" patented technology

The embodiments described herein implement a protocol decoder tool designed by a hardware engineer in a hardware description language (HDL) in a simulator tool for testing and / or in a signal analysis system for decoding protocols in real-time. For example, a user (e.g., hardware engineer, hardware designer, protocol designer) may design a protocol using an HDL and design a protocol decoder tool for decoding the protocol in the HDL. Register transfer level (RTL) files with protocol decoder logic in the HDL may be converted from the HDL to a second language by a converter, compiled into a decoder module by a compiler, and executed in a signal analysis system as the protocol decoder tool. As such, errors in misinterpretation of protocol specifications may be reduced.

A method of communicating in a Fifth-Generation (5G) New Radio (NR) cellular telecommunication Radio Access Network (RAN) is performed by a gNobeB (gNB) and includes: determining that a first User Equipment (UE) that communicates with a Radio Unit (RU) is of a first type; determining that a second UE that communicates with the RU is of a second type; obtaining a first value that is associated with the first type; obtaining a second value that is associated with the second type, wherein the second value is different from the first value; controlling the first UE to use the first value as a t-Reassembly timer parameter used in a Radio Link Control (RLC) protocol; and controlling the second UE to use the second value as the t-Reassembly timer parameter used in the RLC protocol. The method may be performed independently for uplink and downlink directions.

This invention discloses a distributed control and dynamic scheduling method and system for an ECRH system. The method includes: a distributed control architecture based on EPICS, dividing the ECRH device into multiple independently operating IOC nodes, each IOC node responsible for local data acquisition and control; each IOC node preprocesses the acquired data, calculates the priority score of each data based on access frequency and real-time requirements, and marks the data with priority levels; the CA protocol is used to publish and share the data marked with priority levels; each IOC node subscribes to the shared data according to its own relevance and importance to the data; based on the shared data and the data subscribed by each IOC node, combined with the given task, dynamic adjustment control is performed to realize intelligent scheduling and allocation of tasks. This invention can achieve rapid transmission and real-time processing of high-frequency critical data, ensuring that the system can complete the response within microseconds.

A method of configuring an enrollee device for communication in a wireless network is provided. The method comprises, at the enrollee side, providing a configurator device, running a configuration protocol, and sending, by the enrollee device, a notification message in case the enrollee device has failed to connect to the network after a previous run of a part of the configuration protocol during the running of the configuration protocol, the notification message comprising an indication of a public key type previously used by the enrollee as part of the protocol. Enrollee and configurator devices arranged to perform the method are also provided.

The present invention discloses a communication system and protocol method for a networked intelligent intersection without traffic lights. The present invention combines the CSMA / CA channel listening and conflict avoidance ideas with the time division multiple access method in VeMAC to construct a CVMAC protocol that can dynamically adjust the working mode according to the channel busyness, solving the problem of node information access conflict; CVMAC determines the protocol type according to the estimated channel node access density, uses CSMA / CA protocol scheduling when the density is low, and adopts the VeMAC protocol mode for transmission when the density is high; the present invention also builds a MAC protocol prototype verification system based on the Raspberry Pi platform to simulate and verify the scenario, and through the statistics of a large number of data packets, it can calculate the bad packet rate, communication delay, and vehicle throughput. The present invention can effectively solve the data conflict problem when high-density vehicle nodes in networked intelligent intersections without traffic lights access the dispatching center, and can greatly reduce the cost of physical scenario verification through the simulation of the scenario.

The invention provides a method, a device, equipment and a medium for eliminating errors in lattice public key encryption. The method comprises a key generation stage, an encryption stage and an auxiliary encryption stage. The secret key generation stage comprises the steps of generating a random matrix, generating a first secret vector and a first error vector according to uniform distribution sampling, and calculating a target vector according to the first secret vector and the first error vector so as to obtain a public key and a private key; the encryption stage comprises the steps of generating a second secret vector, a second error vector and a secret ring element according to uniform distribution sampling, and generating a ciphertext based on the second secret vector, the second error vector, the secret ring element and a message; the auxiliary encryption stage comprises executing a PSI-CA protocol based on the first secret vector, the first error vector, the second secret vector and the second error vector. According to the method, the uncertainty of error terms in an LPR scheme can be effectively reduced, and then an encryption scheme with smaller design parameters is supported.

To provide an information processing apparatus and the like that are capable of appropriately attempting to connect to a device even when the protocol adopted by the device cannot be identified in advance.SOLUTION: An information processing apparatus includes: a registration unit that registers one or more protocols used for communication with a device; and a control unit that acquires, from the registered protocols, characteristic information that includes parameters used in connecting to the device and propriety information indicating whether parameter values that the parameters can take are changeable, and generates connection information for the device from a combination of the acquired characteristic information. The control unit attempts to connect to the device based on a trial order determined according to the suitability situation of the generated connection information as the protocols, and outputs a result of the connection attempt.SELECTED DRAWING: Figure 2

This invention discloses a minimal recursive delegated communication method and system, belonging to the field of computer network communication. The system contains only two protocol primitives, `register` and `push`, and achieves complete dynamic discovery and task delegation functions through delegated interaction between gateway entities and protocol entities. The gateway entity is deconstructed into three protocol entities: server, brain, and agent. It supports topology reversal where the gateway itself is employed by a higher-level gateway as a protocol entity, achieving infinite recursion and indistinguishability of the delegate chain. The method employs a three-layer abstraction system (L0 / L1 / L2) to separate protocol specifications, extension mechanisms, and application semantics, allowing for the emergence of organizational forms such as bureaucracy and market mechanisms through replaceable employment decision rules. This invention demonstrates the minimal completeness of delegated networks and is applicable to scenarios such as AI multi-agent collaboration, IoT device management, and social organization simulation.

The present disclosure is directed to a leader-based partially synchronous BFT SMR protocol that improves upon existing protocols by exhibiting two rounds of communication latency, linear authenticator complexity, and optimistic responsiveness. This is achieved through the novel use of an aggregate signature scheme as part of the protocol's view-change procedure.

The invention relates to the field of wireless links, and discloses a frequency hopping method based on CSMA, and the frequency hopping method based on CSMA comprises the following steps: S1, channel planning and numbering: dividing 2.4 G and 5.8 G frequency bands into specific channels, and constructing a data table containing various information; s2, frequency point RSSI data acquisition: according to a CSMA / CA protocol, setting system slot time to be 20us, and adding a frequency sweeping time slot Scan segment; s3, channel quality evaluation and sorting: defining a table structure for storing data; and S4, frequency hopping triggering judgment: by setting a frequency hopping triggering rule, triggering frequency hopping when a condition which is the same as the rule occurs. According to the method, under the condition that a CSMA / CA protocol is not damaged, the frequency sweeping time slot can be inserted by modifying backoff window parameters, the frequency hopping frequency can be controlled by adjusting the beacon frame sending interval, switching of the working frequency points is triggered after main sending of the beacon, frequency point switching of the whole system equipment can be completed at the minimum cost or approximately synchronously, and the system efficiency is improved. And communication performance reduction caused by frequent frequency hopping is avoided.

The present application relates to the field of Internet of Things (IoT) data decompression technology, and discloses a data transmission and decompression method and device based on a measurement point table. The method comprises configuring a measurement point table; downloading the configured measurement point table to a gateway or data transmission unit IoT device of a target platform; obtaining and temporarily storing the measurement point data of the monitored device based on the measurement point table, and determining whether a preset upload data interval has been reached; creating a binary measurement point data stream when the upload data interval has been reached; encoding the binary measurement point data stream to obtain an encoding value; using the encoding value as the value of the measurement point data stream and combining it with a preset upload data type to create a compressed data packet; creating a protocol frame based on a preset data transmission protocol type and using the compressed data packet as a protocol payload; and uploading the protocol frame to the target platform. The present application has the effect of improving the transmission efficiency of IoT data and enhancing the applicability of the compression algorithm.

The invention relates to a protocol identification circuit, method and device, equipment and a storage medium. The circuit comprises an upstream circuit used for sending a first starting signal to a process control state machine after initialization; the flow control state machine is used for reading the configuration information in the configuration table and sending the configuration information and a second starting signal to the link protocol identification state machine; the link protocol identification state machine is used for configuring the physical layer matching function circuit according to the configuration information, acquiring the feature information extracted by the feature extraction circuit, and sending the feature information to the process control state machine; and the process control state machine is also used for reading the expected characteristics in the detection table under the condition that the characteristic information is received, matching the characteristic information with the expected characteristics, and taking the protocol type corresponding to the expected characteristics as a protocol identification result and sending the protocol identification result to the upstream circuit under the condition that the matching is passed. The protocol identification efficiency can be improved.

The invention discloses a method for synchronous communication between the same protocol stack and different peripherals, and relates to the technical field of communication. According to the method, a global data area is adopted as protocol stack data, and a DSP and all peripherals are allowed to perform read-write operation on the protocol stack data in respective permission ranges; and in order to ensure the data consistency, the read-write operation realizes blocked access through a mutual exclusion body mechanism in a real-time operating system (RTOS), when a certain peripheral performs the read-write operation, the read-write requests of other peripherals are blocked until the current peripheral finishes the operation, and the read-write request of the other peripherals is not blocked until the current peripheral finishes the operation. According to the mechanism, data conflicts caused by the fact that multiple peripherals read and write protocol stack data at the same time are effectively avoided.

This paper describes a system and method relating to technology that enables multiple parties to jointly generate parameters for generating smart contracts, such as verification keys, or to jointly agree on such parameters. [Solution] The execution of the smart contract may be performed by a third party, for example, a worker node on a blockchain network. The technology described herein may be used as part of a protocol in which the parties to a smart contract share a secret power, in a manner that enables each party to determine the same common reference string, agree on parameters for the smart contract, and / or make proportional contributions to the smart contract and combinations thereof. The smart contract may be made public on a blockchain network (e.g., Bitcoin Cash). The protocol may be a zero-knowledge protocol.

In a shared-medium network, a hopping pattern provisioned by a transmitting device designates a plurality of frequency channels and a corresponding plurality of times. The transmitting device splits data into multiple radio-burst payloads, and transmits the data on the frequency channels according to the hopping pattern, wherein an intended receiving device has no prior knowledge of the hopping pattern. The resulting unpredictable transmission property provides robust, efficient, and interference-resistant reception in the presence of networks operating with different standards and disparate organization. Additional aspects allow reception of ad-hoc transmissions in dense environments without scheduling, CSMA / CA protocols, or scheduling feedback paths; and allows macro-diverse reception of transmissions at networks of connected receivers, thereby providing additional efficiency and security improvements that exploit route diversity of the network.

A method and a network node for rekeying or re-authenticating security protection for Stream Control Transmission Protocol (SCTP) association using Datagram Transport Layer Security (DTLS) encryption for SCTP chunk transfer. The method comprises establishing a new DTLS connection between a first network node and a second network node using an existing SCTP association employing an existing DTLS connection between the two nodes to transfer DTLS handshake messages. The method further comprises commencing to use the new DTLS connection for protecting the SCTP chunk transfer using the DTLS encryption between the two nodes by transmitting SCTP chunks protected by DTLS encryption using the new DTLS connection; and closing the existing DTLS connection after an elapsed time period after commencing to use the new DTLS connection.

The present invention relates to the technical field of chips, and provides a protocol conversion method, device, medium and product, the method comprising: receiving a write transaction transmitted based on a first bus protocol, the write transaction at least comprising write data and a corresponding original byte gating signal; according to the original byte gating signal, searching a matched target mark identifier in a pre-established mapping relation table; according to the format requirement of the second bus protocol, the target mark identifier is packaged into a preset field of the data packet, a target data packet serving as a protocol conversion result is generated and output, and the target mark identifier is used for indicating the validity of data bytes in the write data. According to the method and the device, the regularity of the byte gating signal is utilized, and the target identifier with the smaller bit width is used for replacing the original byte gating signal with the larger bit width for transmission, so that the invalid load overhead of a data packet after protocol conversion is remarkably reduced on the premise of ensuring that a data validity indication function is not lost.

The invention relates to a CSMA / CA-based fallback method suitable for unmanned aerial vehicle auxiliary data acquisition, and belongs to the technical field of communication. The problems that a traditional CSMA / CA protocol is high in channel collision rate and reduced in throughput due to a fixed backspace window in a high-mobility unmanned aerial vehicle scene are solved. According to the technical scheme, the method comprises the steps that a ground node calculates the priority in real time, and the priority fuses the difference value of the maximum communication duration and the to-be-uploaded data volume; the unmanned aerial vehicle dynamically allocates an initial rollback window value according to the global priority normal distribution parameter; and the nodes optimize rollback probability distribution through congestion weight iteration, and adaptively select a rollback value by taking throughput maximization as a target. Differentiated channel competition scheduling is achieved, the collision rate is remarkably reduced, the system throughput is improved, and meanwhile the adaptability to high-speed movement of the unmanned aerial vehicle is enhanced.

NFC terminal devices and corresponding integrated circuit cards (ICCs) use NFC Type 4 tags as a protocol interface for complex or encrypted communication protocols not natively supported by the NFC terminal device. Smartphones acting as NFC terminals can block applications and / or protocols other than NFC Data Exchange Formatted (NDEF) messages. ICC applets supporting advanced functionality use designated memory locations for transmitting commands typically supported at the application level. Both the terminal and the ICC applet can check for updated data in these designated memory locations without protocol-level message control.

The present invention provides an anti-interference CSMA / CA protocol execution method, device, and storage medium. The anti-interference CSMA / CA protocol is constructed based on the CSMA / CA protocol and decision adjustment parameters. The method comprises sensing the current environmental state and obtaining a decision of the current environmental state from a preset decision set based on epsilon-greedy. The decision is distributed to a communication node, which performs an anti-interference CSMA / CA protocol task based on the decision and senses the next environmental state. The method further comprises calculating an experience value obtained by selecting a decision in the current environmental state. The method further comprises performing Q value optimization processing through Q learning, and transferring the current environmental state to the next environmental state. The method optimizes the accumulated experience value to find the optimal decision adjustment parameter, obtains a new decision based on the decision adjustment parameter, and executes the anti-interference CSMA / CA protocol according to the new decision, thereby achieving more reasonable backoff decisions for different environments and improving the anti-interference performance of the CSMA / CA protocol.

A communication interface and a device control, management and monitoring system are provided to enable the networking of and communication between multiple devices operating under different protocols. The communication interface may act as a translator or protocol converter that reformats transmissions from one protocol to another based on protocol compatibility between the recipient and transmitting devices. The device control and monitoring system may store predefined rules that are triggered when specified conditions associated with the networked devices are detected. The rules may specify an action to take such as transmitting a discount offer to a user or turning off a light. According to one or more arrangements, the communication interface may act as an intermediary between the networked devices and the device control system so that the device control system is not required to understand or be compatible with the various other protocols used by the networked devices.

The present invention discloses a method for discovering neighboring nodes of unmanned aerial vehicles (UAVs) based on a Deep Q-Network (DQN) network in a 6G integrated air, space, and ground network, comprising the following steps: Step 1, constructing an initial system model of the UAV network; Step 2, calculating the probability p of each reference node successfully competing for the channel and successfully sending information by using a two-dimensional Markov chain for the binary exponential backoff algorithm of the CSMA / CA protocol s ; Step 3, setting the state, action, and reward function of the DQN network; Step 4, training the DQN network based on the state, action, and reward function to obtain a trained DQN network; Step 5, inputting the current state corresponding to the network node into the trained DQN network and outputting the action corresponding to the maximum reward value. The present invention takes the multi-service requirements of the UAV network as a consideration factor for neighboring node discovery, and proposes a method for discovering neighboring nodes of UAVs through a multi-service competition model and based on the DQN network, which reduces the system overhead of the UAV network while improving the accuracy of neighboring node discovery.

NFC terminal devices and corresponding integrated circuit cards (ICCs) use NFC Type 4 tags as a protocol interface for complex or encrypted communication protocols that are not natively supported by the NFC terminal devices. A smartphone acting as an NFC terminal may block applications and / or protocols other than NFC data exchange formatted (NDEF) messages. An ICC applet supporting an advanced function uses designated memory locations for the transfer of commands normally supported at an application level. Both the terminal side and the ICC applet may check the designated memory locations for updated data in the absence of protocol-level message controls.