56 results about "Message length" patented technology

There are provided apparatuses, methods and computer program products. In accordance with an embodiment, there is disclosed a method comprising defining at least one message length related criterium comprising at least a minimum data volume threshold; determining whether transmission of a message using a small data transmission procedure in an inactive state of the user equipment is allowed; and providing the user equipment indication of the usage of the at least one message length related criterium. There is also disclosed a method comprising obtaining at least one message length related criterium comprising at least a minimum data volume threshold; preparing at least one message to a message buffer of the user equipment to be transmitted by a small data transmission procedure in an inactive state of the user equipment; comparing a length of data in the message buffer with the at least one message length related criterium; n constructing a packet from the data in the message buffer for transmission; and transmitting the packet by the small data transmission procedure if the length fulfils the at least one message length related criterium.

The invention provides a data transmission verification method and device, electronic equipment and a storage medium, and relates to the technical field of network communication, a unique connection identifier is allocated in a connection establishment stage of two communication parties, and a serial number field is designed as a combination of message length information and a random number; a connection identifier and a serial number field are packaged at the head and the tail of the data message respectively, a type-length-value structure message is carried in the middle of the data message, and the consistency of the connection identifier and the serial number field at the head and the tail of the data message is verified after the received message is de-packaged; and when verification fails, the current connection is terminated, and the connection is triggered to be reestablished to retransmit data, so that the problems that packet loss, data tampering or errors are easy to occur during RoCE data transmission in the prior art, and a traditional verification mode is high in calculation complexity, large in occupied bandwidth and high in reliability can be solved. And a traditional retransmission mode is easy to cause system performance reduction or system abnormity caused by access of a wrong memory address.

The invention discloses a multi-link flow scheduling method and device based on convergence and shunting, and a medium, and relates to the technical field of flow scheduling, and the method comprises the steps: collecting access messages, merging flow clusters, carrying out the statistics of the total business volume and the message number of the flow clusters, generating a business observation column and the average message length, executing link light detection and interface counting, and generating a link observation column; generating a normalized service volume sequence and a service discrimination threshold, obtaining a service phase sequence, generating a bearing state quantity and a link discrimination threshold, and obtaining a link phase sequence; generating a phase conflict value sequence and a time limit carrying quantity sequence, forming a candidate link set, solving a synchronization completion moment, and generating a link service quantity; according to the candidate link set and the link traffic, in combination with the average message length and the message number, the final number of continuous message blocks is generated, the continuous message blocks are segmented, and shunt sending is executed, so that link selection and service distribution are more targeted, and the coordination, the performability and the stability of multi-link traffic scheduling are improved.

The application relates to the technical field of network communication, and discloses a congestion control method and device, electronic equipment, a storage medium and a program product. The method sets special length-fixed probe request messages and probe response messages, and calculates a round-trip time based on a request sending timestamp, a request receiving timestamp, a response sending timestamp and a response receiving timestamp, effectively eliminates the influence of message length difference and response side scheduling time fluctuation on the calculation of the round-trip time, and significantly improves the measurement accuracy. Since the probe response messages are transmitted through a special traffic category channel, logical isolation of probe traffic and service traffic is realized, and the interference of the response path congestion on the measurement result is greatly reduced. Since all the timestamps are recorded by the network card hardware, the accuracy and real-time performance of the time recording are ensured, dependence on special functions of the switch is avoided, and excellent compatibility and practicability are achieved.

The application relates to a vehicle-mounted bus communication database file detection method and device and a storage medium, and comprises the following steps: acquiring a vehicle-mounted bus communication database file to be detected; wherein the vehicle-mounted bus communication database file comprises a DBC file and / or an LDF file; analyzing the vehicle-mounted bus communication database file, storing a message corresponding to the vehicle-mounted bus communication database file read by the vehicle-mounted bus communication database file into a message list; polling the message list, detecting the message according to multiple preset detection items; and outputting a test report according to each detection result. The method can detect the message corresponding to the vehicle-mounted bus communication database file read according to the preset detection items, such as message length matching detection, detection of whether a signal initial value is in an expected interval and signal position repetition detection in the same message, so that the detection of the vehicle-mounted bus communication database file is efficiently and quickly completed, and support is provided for subsequent integrated development.

The invention provides a multicast message sending method, device and equipment, and the method comprises the steps: obtaining the message length of a multicast message, and determining the target number of storage spaces for storing the multicast message according to the message length and the capacity of each storage space in a target sub-circular linked list in a plurality of sub-circular linked lists included in a circular linked list; the loop chain table comprises a plurality of buffer areas forming a loop chain structure; each buffer area comprises a plurality of storage spaces; a plurality of storage spaces from different buffer areas form a sub-cycle linked list; under the condition that the number of the unoccupied storage spaces in the target sub-cycle linked list is greater than or equal to the target number, storing the multicast message in the unoccupied storage space in the target sub-cycle linked list according to the storage position of the multicast message; and according to a multicast table look-up result corresponding to the multicast message, sending the multicast message stored in the target sub-circular linked list to a target port indicated by the multicast table look-up result.

The application relates to a request comparison method and device applied to UVM verification, a computer device, a computer readable storage medium and a computer program product, which can be used in the field of computer technology. The method comprises the following steps: creating a transaction class corresponding to a storage access operation; generating an instance message of the storage access operation according to the transaction class, and storing the instance message in an expected queue; in the case that a storage access request message to be compared meets protocol conditions and design specification conditions, comparing the storage access request message with the instance message in the expected queue to obtain a comparison result of the storage access request message; the comparison processing comprises start address comparison processing and message length comparison processing; and the comparison result is used to determine an access verification result of the storage access request message. The method can improve the efficiency of access verification.

The embodiment of the application discloses a traffic distribution method and device for an aggregated link, an optical line terminal (OLT) and a medium. The traffic distribution method for the aggregated link comprises the following steps: predicting a predicted average rate of a port in a current monitoring period and a rate average value of a plurality of ports based on port traffic of the port in a monitoring period, wherein the rate average value is an average value of the predicted average rate; and adjusting port traffic of a to-be-adjusted port in the current monitoring period to an adjusted port according to a load sharing element, wherein the load sharing element comprises preset message length intervals of different rates in the port traffic, the to-be-adjusted port is a port with a predicted traffic rate greater than the rate average value, and the adjusted port is a port with a predicted traffic rate less than the rate average value. The traffic of each physical port of the aggregated link can be dynamically distributed, the load difference of each physical port is reduced, and resource waste is reduced.

This application provides a communication method, communication device, system, and computer-readable storage medium. The method, applied in the field of communication, allows a reader to accumulate and statistically analyze the number of valid terminals within the current access period based on received and parsed Msg1 messages from multiple terminals. Then, it matches different AS ID compression strategies according to the range of terminal counts to determine the target number of bits for the AS ID of each accessing terminal, thereby assigning an AS ID with a different number of bits to each terminal. Furthermore, this application's embodiments overcome the limitation of using a traditional fixed 16-bit AS ID for each terminal in NACK messages. It allows for flexible selection of access identifiers based on the number of accessing terminals. This method can adapt to more scenarios, significantly reducing NACK message length and air interface transmission load, improving transmission efficiency and compatibility. It also eliminates the need for significant hardware or protocol stack modifications for terminals, reducing standard upgrade and terminal adaptation costs.

The invention relates to the technical field of communication, in particular to a message recombination method and device, equipment and a medium. According to the method, firstly, the message length field is determined, then whether splitting is needed or not is judged by comparing the message length field with the maximum read request size, meanwhile, the transmission control parameters are obtained, it is ensured that the recombination strategy can accurately adapt to different parameter differences and message length characteristics, and the current situation that original recombination logic does not have unified specifications and is poor in adaptability is changed; secondly, the recombination logic is greatly simplified through the standardization process, transmission errors caused by rule chaos are avoided, meanwhile, targeted strategies are made according to different comparison results and transmission control parameters, and the stability of cross-chip data transmission is guaranteed; then, the scheme can be directly embedded into a lightweight SOC verification environment, does not need to depend on a lagged SOC system, can carry out a recombination function test in advance, effectively breaks through the limitation of the verification environment, greatly shortens the verification period, and improves the verification efficiency.

The invention relates to a computing power identification signaling construction method and device, communication equipment, a storage medium and a computer program product. The method comprises the following steps: an initiator generates a signaling message; the signaling message comprises a message header and a message body; the message header includes a message type, a message length, and a transaction identifier. By adopting the method, the computing power resource management efficiency can be improved.

A kind of edge gateway protocol data gradient acquisition and transmission method based on relative entropy belongs to the field of industrial internet of things edge computing.The method includes: S1, extracting five-dimensional protocol feature vector such as byte information entropy, message length standard deviation, realizing protocol type automatic identification;S2, by fingerprint similarity, semantic accuracy and historical frequency weighted fusion to obtain suitable configuration confidence, complete channel automatic configuration;S3, independently calculate each channel communication reliability and time deviation penalty factor, evaluate data quality and time alignment;S4, use relative entropy to measure parameter distribution deviation, combine change rate and alarm gain factor to calculate information value index, according to adaptive threshold grading cache;S5, according to Arrhenius acceleration model, convert temperature stress into equivalent failure rate, determine transmission urgency by integrating information value and state danger, dynamically allocate transmission time slot.

The invention relates to the technical field of communication, in particular to a message processing method, device, system and equipment, a medium and a product, and the method comprises the steps that a server receives a first handshake message forwarded by a gateway under the condition that the analysis of the first handshake message sent by a client fails; if it is determined that the message length of the first handshake message meets the length requirement, generating a handshake message retransmission request, and sending the handshake message retransmission request to the client; the server receives a target handshake message sent by the gateway under the condition that the second handshake message sent by the client is successfully analyzed, and establishes a handshake connection with the client based on the target handshake message, the target handshake message carries user identity information of a user to which the client belongs, and the user identity information carries user identity information of the user to which the client belongs. The second handshake message is sent to the gateway by the client based on the handshake message retransmission request, so that the message size of the second handshake message resent by the client meets the analysis buffer area of the gateway, and the success rate of gateway number taking and handshake connection can be effectively improved.

This invention discloses a communication method and apparatus between circuit boards, relating to the field of circuit board communication technology. The method includes: upon receiving a header identifier message, starting a first timer to collect the first interval duration for receiving adjacent messages; when the first interval duration is greater than a first preset duration, clearing the DMA buffer of the current message data and initiating the next DMA receive interrupt; when the first interval duration is not greater than the first preset duration, continuing to receive messages in the current message data; upon receiving a long message indicating the message length in the current message data, determining a second preset duration based on the message length, starting a second timer to collect the second interval duration between receiving the long message and the final message in the current message data; when the second interval duration is greater than the second preset duration, clearing the DMA buffer of the current message data and initiating the next DMA receive interrupt. This invention can improve the accuracy of communication between circuit boards.

The invention discloses a quantum digital signature method and system for multi-receiver verification arbitration, and relates to the technical field of quantum digital signatures, secret key consumption is reduced from O (k2) magnitude to O (k) magnitude through a secret key synthesis technology, and under the same security parameter and message length, the secret key consumption of the scheme of the invention is reduced by at least two orders of magnitude compared with the existing scheme; based on the information theory security of the quantum key and the unconditional security of one-time hash / encryption, the scheme of the invention can effectively resist forgery attack and denial attack, and the security is strictly proved; the multiple receivers can interact with the arbiter at the same time and complete verification independently, the whole signature verification time of the system is greatly shortened, and the method is particularly suitable for large-scale quantum network application.

Methods, systems, and devices for wireless communications are described. In low signal to noise ratio (SNR) conditions, a transmitting wireless communication device may use non-coherent transmissions, which may be transmissions without corresponding pilot sequences. Non-coherent transmissions may involve transmissions in subsets of symbols based on a duty cycle to increase the peak transmission power of the message in the transmitted symbols. A transmitting wireless communication device may select at least one of the duty cycle, the bandwidth, or the quantity of bits included in a non-coherent message (e.g., the message length) to satisfy a performance demand for the message. For example, the message length may be adjusted by increasing or decreasing the amount of redundancy or by adjusting code block groups. As another example, selecting a larger bandwidth may allow for transmission via more frequency resources, and accordingly, selection of a larger bandwidth may allow for a larger message size.

The embodiment of the invention provides a message transmission control method and device, electronic equipment and a storage medium so as to reduce the long message discarding rate. The method comprises the following steps: for each message set, determining a token offset value corresponding to the message set according to the number of messages in the message set; wherein the token deviation value is positively correlated with the probability that the token is acquired by the corresponding message set; the messages in each message set belong to the same message length range, and different message sets correspond to different message length ranges; setting a discarding control value in a first preset value range for each message in the target message set; the target message set is a message set of which the corresponding token deviation value exceeds a first preset threshold value; the probability that the discarding control value exceeds a second preset threshold value is positively correlated with the corresponding token deviation value; and for each message in the target message set, carrying out transmission control on the message according to a comparison result of the discarding control value of the message and a second preset threshold value.

The application provides a communication method and device, which are applied to a network device, and the method comprises the following steps: receiving a first message, wherein the first message comprises a seq value and a message length value; if the first message is not a syn message and a first node matching a message feature of the first message has been inquired locally, identifying whether the first message is a syn-ack message; if the first message is not the syn-ack message and the first message is a forward message, identifying whether the first message is in a first window interval of a sliding window according to the seq value and the message length value; if the first message is in the first window interval, forwarding the first message; if the first message is not in the first window interval, discarding the first message.

The present application relates to a method and apparatus for constructing computing power identification signaling, a communication device, a storage medium and a computer program product. The method comprises: an initiator generates a signaling message, the signaling message comprising a message header and a message body, and the message header comprising a message type, a message length and a transaction identifier. By using the present method, the efficiency of computing power resource management can be improved.

The invention relates to a UDP (User Datagram Protocol) message transmission acceleration method based on hierarchical memory management, which comprises the following steps of: 1) pre-constructing a sending memory pool in a UDP sending direction, acquiring a target memory block to write message header protocol information during sending, and loading user data to an adjacent payload area, a descriptor containing a memory address and a message length is initialized, and a network card sending queue is notified through a doorbell register to send a complete message; 2) pre-constructing a receiving memory pool in a UDP receiving direction, and establishing a redundant double-linked list: using / idle; the network card driver obtains the node loading message from the idle chain and then transfers the node loading message to the use chain; when a user creates a socket, an annular queue is constructed, and a drive stores a use chain message load into the annular queue and then copies the use chain message load to a user space in a grading manner. According to the invention, the problem of complex and low-efficiency memory management in traditional UDP data transmission is solved, and efficient improvement of transmission performance is realized.

The invention discloses a memory instruction set data acquisition method and system based on a clipboard, and the method comprises the steps: a user captures multiple types of target messages after rolling a mouse roller to trigger a copying instruction, adds format identifiers to the multiple types of target messages, and stores the format identifiers to the clipboard in a binary stream form; generating a memory instruction set through the physical storage address of the clipboard and the format identifier and the message length of the target message, and storing the memory instruction set to a memory address; after a memory instruction set is positioned and read through a memory address, binary stream data is extracted from the clipboard, a target message type is identified through a Type field in the binary stream data, and a target message binary data segment is positioned according to Offset and Len in the memory instruction set; and calling an analysis algorithm corresponding to the target message type to analyze the binary data segment to obtain a target message, and outputting the target message. According to the method, multiple types of messages are directly extracted through the memory, so that the operation efficiency and the analysis integrity are greatly improved.

The invention relates to the technical field of electric power information security, and provides a hybrid encryption communication method and system suitable for an electric power APN Internet of Things private network, and the method comprises the steps: obtaining a session key request initiated by a service platform, carrying out the tunnel packaging and timestamp adding of the session key request, and obtaining a session key request package; performing Hash abstract on a timestamp, a message length field and a tunnel encapsulation length field in the session key request encapsulation packet to obtain session key request integrity message feature information, and adding the session key request integrity message feature information to the encapsulation packet; searching a corresponding session key table according to the service platform identifier, obtaining session key parameters, obtaining a session key request acknowledgement packet according to an SM3 algorithm, and sending the session key request acknowledgement packet to the service platform; and obtaining a message sent by the service platform, decrypting the message according to the session key parameter and the received message and sending the decrypted message to the service host, thereby realizing hybrid encryption of a communication data packet between the user side access point and a network outside the trusted boundary of the power APN Internet of Things private network based on the session key.

The application discloses a long connection message distribution method and system, and belongs to the technical field of information distribution. After a server establishes a long connection and receives a first message, authentication related fields are parsed, and a message length field and a message check field are extracted. The extracted fields are compared and checked with actual received data respectively, and the accuracy score of message parsing is obtained through comprehensive calculation. The correctness of frame processing is dynamically evaluated according to the accuracy score. When the score is lower than a preset threshold, dynamic frame adjustment is performed. Through re-segmentation of data cache and independent parsing of authentication messages, the integrity and boundary correctness of authentication information are ensured. According to the check result, it is determined whether to continue the authentication process or disconnect the connection. The accuracy and security of frame processing in the authentication stage are effectively improved. The risk of unauthorized users bypassing the authentication access system by using the abnormality of sticking and unpacking is reduced, and the security of the long connection message distribution system is significantly enhanced.

A message processing method includes: after obtaining a message to be processed from a data stream, determining the maximum transmission unit (MTU) of the data stream based on the data stream identifier in configuration information; if the message length of the message to be processed is greater than the MTU of the data stream, obtaining a target message identifier, and then dividing the message to be processed into multiple message fragments with target message identifiers according to the MTU of the data stream; shaping the multiple message fragments according to the output interval of the data stream; and sending the shaped message fragments. This method can shape data streams including large data messages, reducing the burstiness of the data stream output and the possibility of data loss. This application also provides a network device capable of implementing the above message processing method.

The invention discloses a communication method and device, electronic equipment, a storage medium and a program product. The method comprises the following steps: acquiring a to-be-sent message, and determining the message length of the to-be-sent message; if the message length is greater than the estimated memory size, expanding the shared memory according to the message length, determining the size of the expanded shared memory, and determining the size of the shared memory according to the estimated memory size; and applying for a new shared memory according to the size of the expanded shared memory, and sending the to-be-sent message according to the new shared memory, thereby solving the problem that the variable-length message cannot use the shared memory to perform inter-process zero-copy communication, performing expansion when the estimated memory size is smaller than the message length in the message sending process, and improving the message sending efficiency. Zero-copy communication between processes of the variable-length message through the shared memory is realized, and the length of the to-be-sent message does not need to be accurately pre-estimated in advance; the method is suitable for sending variable-length messages and fixed-length messages, message types are not limited, and the use process is flexible and changeable.

The embodiment of the invention discloses a context management method and device for Agent interaction, equipment and a readable storage medium. The method comprises the following steps: acquiring a total message length threshold value set by a current Agent, and monitoring whether the length of a context reaches the total message length threshold value or not in real time; if yes, obtaining all messages after last historical processing as target processing messages, and detecting message types of the target processing messages according to the format fields; if the target processing message is a system message, keeping the target processing message unchanged; if the target processing message is a user message, whether the user message contains a tool calling result is analyzed, and if yes, the user message is processed; if not, keeping unchanged; and if the target processing message is the model message, judging the message type of the model message, and processing according to the message type of the model message. According to the method, the Token length of the context is reduced, the number of times of interaction between the Agent and the large model is prevented from being limited, and normal operation of functions of the Agent is guaranteed.

This invention discloses a method and related equipment for identifying key fields in industrial control protocols, belonging to the field of cyberspace security technology. The method includes: if a delimiter exists in the message, identifying key fields in the protocol using the features of the delimiter; if no delimiter exists in the message, performing type-length-value decoding on the protocol; if decoding is successful, identifying key fields in the protocol using type-length-value decoding; if decoding fails, when there is only one length field in the protocol, identifying the length field based on the correlation between the message length difference and the field value difference, and identifying the structure identifier field based on the consistency of the field value in similar messages; when there are multiple length fields in the protocol, identifying the structure identifier field based on the protocol spectrum and convolutional neural network, and identifying the length field based on multidimensional hypothesis testing. This method can effectively identify structure identifier fields and length fields in industrial control protocols.

The embodiment of the invention relates to the technical field of vehicle controllers, and discloses a flash upgrading method and device based on an OTA technology, electronic equipment and a medium. The method comprises the following steps: in response to receiving of an upgrade task instruction and an upgrade package, checking whether a storage space of a cache region is sufficient or not; after it is determined that the storage space of the cache region is sufficient, the upgrade package is flashed to the cache region; predicting whether the current upgrading operation has a fault or not at least based on the real-time data and the historical data; if the prediction result is that the current upgrading operation has a fault, automatically executing a self-healing operation on the current upgrading operation so as to at least change the message length and the sending interval corresponding to the current upgrading operation and realize fault pre-elimination; and executing verification operation and upgrade environment verification operation on the upgrade package, and completing vehicle upgrade operation based on the upgrade package after the upgrade package verification is successful and the upgrade environment verification is passed. According to the invention, the risk of controller brick changing is reduced, and the upgrading reliability is improved.

The present application relates to the technical field of network, in particular to a state machine inference method and system for industrial control private protocol, collecting industrial control device related protocol data packets and preprocessing the data packets to extract data packet message content and time stamp related to the target protocol and build a message sequence; according to the message sequence, the message content length and the request response message length are obtained, the protocol message type is labeled according to the request response message length, and the message type label and the corresponding message are stored by using the labeled dictionary; according to the time stamp in the message sequence, the labeled message type is sorted, the transition relationship between different states of the protocol is determined based on the adjacent message types in time, and the protocol state machine is constructed according to the transition relationship between the states; according to the protocol state machine, the same type protocol message is replayed to the industrial control device, and the abnormal state transition in the protocol state is determined and removed according to the response of the industrial control device. The present application can improve the overall performance and efficiency of protocol inference.

The application relates to an efficient variable grouping method and system, which comprises the following steps: obtaining the message length occupied by a variable to be grouped when the variable to be grouped requests registration; setting the variable to be grouped as a class A variable smaller than a threshold length or a class B variable greater than or equal to the threshold length according to the message length; and taking entries from the class B variable and the class A variable in turn to form a message by grouping until the message reaches the maximum message length, which indicates that the current message grouping is completed. Through the technical scheme, the application can maximize the use of the length of the message to carry as much information as possible, reduce the number of messages, improve the communication efficiency of the message, and reduce the bandwidth waste caused by different variables in communication.