157 results about "Message frame" patented technology

A communication method is performed by a non-Access Point Station Multi-Link Device (non-AP STA MLD). The method includes: determining a first message frame, wherein the first message frame includes identification information for indicating an operation mode to be maintained, and the identification information corresponds to link information for identifying a link to which the operation mode is applicable; and sending the first message frame.

The invention discloses a communication method, system and equipment based on an improved Ethercat protocol, and the method comprises the steps: carrying out the analysis of a message frame when the message frame is received, and obtaining the address information in the message frame; performing data positioning according to the address information, and determining a target sub-protocol data unit corresponding to the slave station; executing an instruction in the target sub-protocol data unit to obtain an operation result; and when the target sub-protocol data unit is the last sub-protocol data unit, storing the operation result to an operation result feedback field of the target sub-protocol data unit. In the application, through optimization of the WKC fields, the WKC fields included in the sub-protocol data unit are reduced, the space waste of the data frame is reduced, and the transmission efficiency is improved.

The invention relates to the field of information security, in particular to a data security processing method, a computer program product, electronic equipment and a storage medium. The data security processing comprises the steps of obtaining to-be-transmitted target data; encrypting to-be-transmitted target data by using the key to obtain a ciphertext; packaging the ciphertext, the serial number and the truncation message authentication code to obtain a message frame; the truncation message authentication code is generated based on the ciphertext, the serial number and the key; and sending the message frame to a receiving end, so that the receiving end verifies and decrypts the message frame, and the data security can be improved.

The invention discloses a fault processing method and device and a storage medium, and relates to the technical field of digital information transmission, and the method comprises the steps: when a communication link between a first EtherCAT slave station and a previous EtherCAT station is detected to be interrupted, when a message frame in a preset format is received, sending the message frame to a first EtherCAT slave station; judging whether a message index corresponding to the message frame is written into a message initial index register of the first EtherCAT slave station or not; if yes, modifying a circular flag bit field in the message frame from 0 to 1 to obtain a modified circular flag bit field; and the modified message frame is sent to a second EtherCAT slave station, so that the second EtherCAT slave station carries out discarding operation on the message frame based on the modified circular flag bit field, and the second EtherCAT slave station is an EtherCAT slave station which is located at the downstream of the first EtherCAT slave station and has the smallest distance from the first EtherCAT slave station. The technical problem that when link interruption occurs between slave stations in an EtherCAT protocol scene, the message continuously oscillates in a disconnected loop is solved, so that continuous oscillation of the message is prevented, and the stability and reliability of a system are improved.

A multi-connection reestablishment method, for use in a first device, and comprising: sending a first message frame, the first message frame comprising: a connection identifier of multiple connections of a first device and a second device, and media access control MAC addresses of the first device, one connection being associated with one MAC address of the first device.

A sensing measurement method is performed by an access point device, and includes: determining a first message frame, wherein the first message frame includes a station information field, the station information field includes a first sub-field, and the first sub-field indicates an uplink modulation and coding scheme (UL MCS) used by a station device, in feeding back a second message frame, that receives the first message frame; and sending the first message frame.

A communication method for a sensing session setup. The method includes: determining a first message frame, wherein the first message frame comprises capability information on sensing measurement parameters supported by a device performing the communication method; and transmitting the first message frame.

The invention relates to an IRNSS navigation signal simulation generation method and system based on parameter compensation, and the method comprises the steps: receiving original signal data outputted by an IRNSS navigation receiver, and receiving a target machine position coordinate and a velocity vector; analyzing the navigation message to extract ephemeris parameters, and calculating the real-time position and velocity vector of the satellite; calculating a Doppler frequency compensation value and a pseudo code time delay compensation value; according to the pseudo code time delay compensation value and a preset target simulation coordinate, modifying a signal emission time field in the navigation message, generating a simulation navigation message frame, carrying out forward error correction coding processing, generating a coding symbol sequence, and carrying out modulo-two addition operation on the coding symbol sequence and a pre-generated PRN pseudo code sequence to obtain a baseband spread spectrum signal; generating an intermediate frequency carrier signal according to the Doppler frequency compensation value and the carrier phase; and modulating the baseband spread spectrum signal to the intermediate frequency carrier signal, and outputting an intermediate frequency analog signal. According to the invention, the concealment of signal simulation and the success rate of capturing the analog signal by the target receiver can be improved.

The embodiment of the invention provides a multi-link communication method and device, a computer readable medium and electronic equipment. The multi-link communication method comprises the following steps: generating a first message frame, wherein the first message frame is used for requesting to transmit a data packet of a specified service type by adopting multiple links; and sending the first message frame. According to the technical scheme provided by the embodiment of the invention, the transmission efficiency and reliability of the service data packet with a relatively high real-time requirement can be improved.

The invention discloses a data transmission device, which comprises an on-chip network interface module used for receiving messages sent by a first core grain in real time by taking data sub-packets as units and classifying each data sub-packet into a virtual channel matched with the on-chip network interface module according to the message type in each period, the on-chip network interface module internally comprises a plurality of parallel virtual channels; the interconnection control main body module is used for arbitrating and obtaining a target virtual channel in a plurality of virtual channels of the on-chip network interface module in each period, obtaining a data sub-packet from the target virtual channel, packaging a message frame, and sending the packaged message frame to the physical transmission layer module; and the physical transmission layer module is used for sending a message frame received in real time to the second core grain, and the device reduces the transmission delay of a complete message as much as possible on the premise of ensuring the correctness of data transmission between the core grains, and meanwhile, ensures the transmission efficiency and improves the transmission bandwidth.

A method, apparatus and computer readable medium for terminating a sensing by proxy (SBP) measurement. The SBP measurement is terminated by: receiving, by an access point (AP), a sensing measurement termination message frame transmitted from a first station (STA), wherein the sensing measurement termination message frame comprises a sensing measurement setup identifier corresponding to a sensing measurement procedure; and determining, by the AP, whether to terminate an SBP procedure, wherein the AP is an SBP responder.

This disclosure provides a method and system for automotive diagnostic services based on a modular UDS protocol, relating to the field of automotive UDS development technology, including a host computer, PCAN, and an electronic control unit (ECU). The ECU includes a network layer and a session layer. The host computer sends diagnostic messages to the ECU via PCAN. After receiving the diagnostic message from the host computer, the ECU distinguishes the network protocol control information type of the diagnostic message, determines whether the current network state of the network layer allows receiving the diagnostic message frame, and determines whether the addressing mode, session mode, and security level are equal to the ECU's configuration information. If the network layer allows reception, the session layer determines whether the ECU supports the service. After the session layer confirms the response type to be sent, the network layer sends one or more frames according to the protocol type. This disclosure enables rapid iteration when adding or removing UDS services, reducing code modifications.

A communication method and apparatus include: determining a first message frame, where the first message frame includes a transmit power envelope element, and the transmit power envelope element includes information indicative of maximum transmit power for a 320 MHz / 160+160 MHz bandwidth; and transmitting the first message frame.

The present disclosure provides a communication method and a communication apparatus for wireless local area network aware measurement feedback. The communication method comprises: determining an aware measurement setup message frame, wherein the aware measurement setup message frame comprises first information associated with a time slot of the wireless local area network aware measurement feedback, wherein the time slot represents a time interval for feeding back an aware measurement result; and transmitting the aware measurement setup message frame.

A wireless communication method is performed by a first device, and includes: sending a first message frame carrying a flexible multicast service (FMS) descriptor element on a transmission link, wherein the FMS descriptor element at least comprises transmission parameters for transmitting FMS streams on a plurality of transmission links.

A method for indicating data transmission under more than one connection, performed by an access point and including: receiving, in a first connection, a first data frame sent by a first station; generating, according to a transmission status of a second data frame between the access point and a second station in a second connection, an acknowledgement message frame containing time information for the first data frame, the time information being configured to indicate time at which the first station re-accesses the first connection after receiving the acknowledgement message frame, and the second connection being different from the first connection; and sending the acknowledgement message frame in the first connection.

A method for multi-link communication includes: determining a first message frame, wherein the first message frame includes first identifier information configured to identify spatial streams used for a transmitting operation, and second identifier information configured to identify spatial streams used for a receiving operation, and the transmitting operation and the receiving operation are performed simultaneously in at least one pair of links supporting simultaneous transmitting and receiving functionality; and transmitting the first message frame.

The embodiment of the present disclosure relates to the technical field of mobile communication, and provides a communication method, device, equipment and storage medium, which can be applied to a wireless local area network sensing initiating device. The method comprises the following steps: receiving a wireless local area network sensing measurement establishment response frame carrying sensing measurement parameters of a wireless local area network sensing measurement response device; determining a first message frame based on the sensing measurement parameters; and sending the first message frame, wherein the first message frame is used to indicate acceptance or rejection of the sensing measurement parameters. The embodiment of the present disclosure can enable the wireless local area network sensing initiating device to send a first message frame to a response device to indicate acceptance or rejection of sensing measurement parameters of the response device in the case that the wireless local area network sensing initiating device receives a wireless local area network sensing measurement establishment response frame carrying sensing measurement parameters sent by the wireless local area network sensing response device.

Embodiments of the present disclosure relate to a secondary channel communication method, a communication device, and a communication system. The secondary channel communication method comprises: a sending end receives a first message frame in a secondary channel, wherein the first message frame comprises: a first identifier indicating the duration of the first message frame; and the first identifier is set as the duration, sensed by a receiving end, in which an overlapping basic service set physical protocol data unit (OBSS PPDU) occupies a primary channel, or is the same as the duration identified by a second identifier of a second message frame sent by the sending end, so as to ensure that the duration of communication in the secondary channel is not greater than a network allocation vector (NAV) timer duration sensed or set in the primary channel, so that both the sending end and the receiving end can perform communication in the secondary channel, thereby meeting UHR transmission requirements.

The present disclosure provides a communication method and a communication device. The communication method comprises: determining a first message frame, wherein the first message frame comprises a transmit power envelope information element, and the transmit power envelope information element comprises information indicating a maximum transmit power of a bandwidth of 320 MHz / 160+160 MHz; and transmitting the first message frame. The example embodiments of the present disclosure can improve the spectrum utilization.

A data transmission method and a communication device are provided. Regarding the synchronization transmission of a plurality of transmission connections, in response to at least two of the plurality of transmission connections having different random backoff parameters, a frame length of a message frame transmitted by each transmission connection is determined based on a maximum random backoff parameter of the plurality of transmission connections.

The present invention discloses a CAN bus network intrusion detection method and system based on hybrid deep learning. The present invention constructs a UNET-Transformer model, which extracts spatial features in CAN bus data through an encoder and a decoder, and captures the time and sequence dynamics in the CAN bus data sequence through an attention layer, thereby realizing a comprehensive analysis of the spatial and temporal characteristics of the message frame. This joint modeling significantly enhances the ability to recognize complex patterns. The present invention also addresses the problem of data imbalance and combines a sliding window method to not only expand the training samples but also maintain the distribution characteristics of the original CAN data, thereby making full use of minority category data and avoiding adverse effects on the detection of rare attack categories. Therefore, the method proposed in the present invention avoids the limitations of traditional CNN's limited ability to process sequence features, and is more efficient than BiLSTM processing, making it suitable for real-time intrusion detection.

The embodiments of the present disclosure relate to the technical field of communications, and provide a communication method and apparatus, and a device and a storage medium, which can be applied to an AP MLD. The method comprises: determining a first message frame, wherein the first message frame comprises a first information domain, and the first information domain is used for respectively indicating that an operation parameter update request corresponding to each first communication connection is approved or rejected, and is used for indicating the number of first communication connections, or, the first message frame comprises a second information domain and a third information domain, the second information domain is used for respectively indicating that an operation parameter update request corresponding to each first communication connection is approved or rejected, and the third information domain is used for indicating the number of first communication connections, each first communication connection being a communication connection for a non-access point multi-link device (Non-AP MLD) to request that a multi-link operation parameter update is performed; and sending the first message frame. The embodiments of the present disclosure can provide a method for an AP MLD to respectively respond to an operation parameter update request corresponding to one or more communication connections.

The invention relates to a method and a system for identifying an instant call type service and an intelligent terminal, and relates to the field of network instant call technology, and the method comprises the following steps: obtaining an instant call data flow and participant information; identifying a call message and a message frame number; determining the content of the message; defining a common message content when the same message content exists between different call messages; determining a common number of common message contents; determining a common proportion based on the common number and the message frame number; defining the message content as key data when the common proportion is greater than the key critical proportion; screening instant call data streams with the same key data and marking the instant call data streams as the same call data stream; and analyzing the participant information corresponding to the same conversation data flow to obtain the same conversation participant. The method has the advantages that participants of the same session can be recognized by analyzing the same content without deeply analyzing specific content, and illegal behaviors of instant communication of illegal persons through a network can be detected.

The present disclosure provides a communication method and a communication device. The communication method includes: determining and sending a first message frame, wherein the first message frame includes information indicating that a first device sending the first message frame supports a soft access function; and receiving a second message frame, wherein the second message frame includes information about frequency bands supported by a second device located near the first device. The technical solutions provided by the example embodiments of the present disclosure can improve throughput.

The embodiments of the present disclosure relate to the technical field of mobile communications. Provided are a communication method and apparatus, and an electronic device and a storage medium. The communication method is applied to a sensing initiator. The method comprises: determining a target radio frame, wherein the target radio frame comprises a multi user-physical layer protocol data unit (MU-PPDU), which comprises sensing measurement setup termination message frames corresponding to at least two sensing responders; and sending the target radio frame to the at least two sensing responders at the same time. The embodiments of the present disclosure solve the problem of a large number of termination message frames occupying more network resources in a WLAN sensing termination process.

A method for communication with multiple connections is provided. The method can include sending a first message frame and a second message frame with a first connection and a second connection among the multiple connections, respectively, and resending the first message frame after a first waiting duration, in response to receiving a second feedback message frame related to the second message frame with the second connection and not receiving a first feedback message frame related to the first message frame with the first connection.

A method for communication on multiple links, includes: determining a first message frame; and sending the first message frame, wherein the first message frame includes parameter information of the communication on the multiple links.

This invention belongs to the field of satellite telemetry, tracking, and command (TT&C) technology, and provides a method and system for real-time scheduling of short message resources during overseas orbit control. The method includes: satellite control software constructing a short message frame library and pre-configuring fixed-length normal frames and orbit control-specific frames; attitude and orbit control software monitoring orbit control status in real time, satellite control software identifying orbit control ignition commands and orbit control stage markers, and initiating a dual-queue parallel transmission mechanism; configuring the link for relay satellites according to the dual-queue parallel transmission mechanism and implementing frequency division multiplexing downlink; and entering a transition period after orbit control monitoring ends, performing periodic attenuation control on the orbit control-specific frames. This invention solves the problem of real-time status monitoring failure for geostationary orbit satellites during overseas orbit control, increasing the orbit control anomaly identification rate to over 99%, breaking through monitoring real-time limitations, and significantly improving the safety and controllability of overseas orbit control; optimizing resource utilization, enhancing adaptive capabilities, and achieving second-level on-demand downlink of key parameters and dynamic optimization of channel resources.