1361 results about "Packet transmission" patented technology

The invention relates to the technical field of data transmission, and discloses an intelligent flight data transmission method and system based on satellite communication and a storage medium. The method comprises the following steps: carrying out real-time data acquisition and calculation on signal strength, bandwidth, delay and packet loss probability of an available satellite communication link to obtain a real-time link parameter table and a transmission channel allocation sequence; based on the real-time link parameter table, according to the priority information of the encrypted data packet queue and the transmission channel distribution sequence, performing multi-channel distribution and parallel transmission processing on the data packet to be transmitted to obtain a data packet transmission record; and carrying out statistical analysis and parameter calculation on the transmission success rate, delay time and retransmission times in the data packet transmission record to obtain transmission quality data and a system optimization parameter set. Under the condition of limited satellite communication resources, intelligent hierarchical transmission of flight data is realized, timely and reliable transmission of important data is ensured, and meanwhile, a real-time monitoring and optimization mechanism for data transmission quality is provided.

A computerized method is disclosed that includes operations of obtaining network traffic data between a source device and a destination device, applying a set of one or more security rules to a plurality of metrics of the network traffic data to obtain a subset of network traffic metrics, applying a first trained machine learning model to the subset of network traffic metrics to generate a feature vector through feature extraction of the subset of network traffic metrics, and evaluate the feature vector for a presence of beaconing and classify the subset of network traffic metrics, and responsive to the classifying of the subset of network traffic metrics, generating a flag for a system administrator. The plurality of metrics include at least one or more of packet size, packet transmission rate, or a ratio of (i) packet size for inbound packets and (ii) packet size for outbound packets.

The invention provides a live broadcast visitor flow prediction and route scheduling method and system based on a space-time sequence, and relates to the technical field of flow management and scheduling, and the method comprises the steps: building a live broadcast flow prediction network through collecting the flow data of a live broadcast room, and calculating the flow correlation degree through a deep learning model. When the flow change of the live broadcast room exceeds a threshold value, calculating propagation characteristics of the flow change based on the graph neural network, and generating a flow ripple propagation range matrix and a flow surge probability distribution matrix; and constructing a block chain network in the target area, and generating a data packet routing strategy by using an intelligent contract and lightning network technology. And the edge acceleration node receives the routing strategy to forward the data packet, and adjusts the transmission rate of the data packet based on an online reinforcement learning algorithm when the network is congested.

An adaptive adjustment method of packet-level transmission priority for delay guarantee in programmable networks. The method realizes the adaptive adjustment of packet-level transmission priority in programmable networks from three aspects to satisfy the preset transmission delay requirements, namely: adaptive adjustment of priority in programmable switches based on processing delay state and switch queuing state, adaptive adjustment of priority among programmable switches based on transmission delay in upstream switches, and adaptive adjustment of global parameters based on packet transmission delay satisfaction, so as to realize the packet-level transmission delay guarantee in different positions with different time scales. In addition, for a scene with a large number of time-sensitive flows, based on the optimization model and heuristic algorithm, the optimization deployment of time-sensitive flows can be realized in polynomial time under the condition of limited network resources to improve the overall extent of delay satisfaction.

The invention relates to the technical field of data packet transmission, and discloses a data packet transmission control method and device for a low-power-consumption dual-mode Bluetooth chip, and the method comprises the steps: obtaining a signal strength parameter, a power consumption parameter, a transmission rate parameter and an environment parameter of the dual-mode Bluetooth chip, inputting the parameters into a deep time convolution network, and carrying out the time sequence feature extraction, obtaining a transmission mode switching judgment result; calculating transmission state evaluation data; the chip transmitting power is adjusted in a grading mode, standby power consumption is controlled through a nanoamp LDO circuit, and a dynamic power control parameter is obtained; performing compression coding on the data packet to obtain a dual-mode transmission protocol configuration parameter; executing time sequence sampling, and constructing a dual-mode state feature sequence; the data packet delivery success rate, the end-to-end transmission time delay and the total power consumption of the system are calculated, transmission control parameter optimization is carried out through double-layer deep reinforcement learning, target transmission control parameters are obtained, and the optimal balance of the transmission performance and the power consumption of the dual-mode Bluetooth chip is achieved.

A method of secure data routing with dynamic packet spoofing is disclosed that comprises a scatter network node receiving data packets from a user communication device and a scattering application selecting a logical communication channel from a plurality of logical communication channels. The method also comprises a channel controller receiving channel information that comprises a size limit corresponding to data packets being transmitted over the logical communication channel and modifying a received data packet based on the channel information such that a size of the modified data packet satisfies the size limit. The method additionally comprises a channel adapter wrapping the modified data packet to correspond to a particular protocol that is different than an initial protocol of the modified data packet. The method further comprises transmitting the modified data packet wrapped to correspond to the particular protocol via the logical communication channel to a counterpart scatter network device.

The invention discloses a P4 switch processor core-oriented multi-service traffic packet scheduling method, which mainly comprises the following steps of: proposing a feature extraction method based on a statistical interval and Sketch, integrating data packet time correlation and traffic dynamic change, optimizing a Bloom filter conflict detection mechanism, and improving the adaptability and accuracy of an algorithm in a limited resource environment; a decision tree model is combined with scheduling, a decision tree is reconstructed to adapt to an operation mode and a data processing requirement of a P4 switch, and high-precision service flow classification under linear speed operation is ensured; a packet scheduling method AD-PIFO is designed based on a variable priority, the forwarding priority of a data packet is dynamically adjusted, the QoS requirements of different services are met, and the overall performance and efficiency of the switch are improved. The method is outstanding in high-priority traffic throughput and low-delay performance, is superior to similar algorithms in medium-low priority traffic throughput, is stable and effective under different load conditions, is reasonable in extra time overhead of data packet transmission, and is widely applied to SDN network optimization data packet scheduling scenes.

A system and method, the method including determining, by a centralized user configuration function based on a core network packet delay budget (CN PDB) and a buffer duration, an allowed maximum latency of a time-sensitive network (TSN) stream transmitted between an access network device and a user plane network element, wherein the maximum latency does not exceed a difference obtained by subtracting the buffer duration from the CN PDB, sending, by the centralized user configuration function, first latency information to a centralized network configuration function, wherein the first latency information indicates the maximum latency, receiving, by the centralized user configuration function, first configuration information, wherein the first configuration information indicates a packet transmission time of the transmit end of the TSN stream, and the packet transmission time is associated with the maximum latency, and sending the first configuration information to the transmit end of the TSN stream.

The invention provides an AmBC-NOMA communication resource joint optimization method for a high mobility V2X scene, and relates to the technical field of communication resource joint optimization. Aiming at channel dynamic change caused by high-speed motion of a vehicle and the influence of the channel dynamic change on short packet communication reliability and rate performance, the method combines reflection type communication and non-orthogonal multiple access technologies, and on the basis of fully considering channel time-varying characteristics, a reflection coefficient, a power distribution coefficient and block length resource distribution in a system are jointly optimized, so that the reliability and the rate performance of short packet communication are improved. Therefore, the communication rate performance and the resource utilization efficiency under the requirements of short time delay and low error rate are improved. Through the method, the short packet transmission rate of the system can be remarkably improved under the conditions of limited time delay and channel uncertainty, and the actual application requirements of the future Internet of Vehicles system for efficient, low-time-delay and high-reliability short packet communication are met.

A system can include a backend system and a sensor kit configured to monitor an industrial setting. The sensor kit can include an edge device and a plurality of sensors that capture sensor data and transmit the sensor data via a self-configuring sensor kit network. At least one sensor can capture sensor measurements and output instances of sensor data, generate and output reporting packets, and transmit the reporting packets to the edge device via the self-configuring sensor kit network in accordance with a first communication protocol. The edge device receives reporting packets from the plurality of sensors via the self-configuring sensor kit network and transmits sensor kit packets to the backend system via a public network. The backend system can include a processing system and a storage system, where the processing system performs backend operations on the sensor data and the storage systems stores the sensor data.

Examples described herein relate to technologies for reliable packet transmission. In some examples, a network interface includes circuitry to: receive a request to transmit a packet to a destination device, select a path for the packet, provide a path identifier identifying one of multiple paths from the network interface to a destination and Path Sequence Number (PSN) for the packet, wherein the PSN is to identify a packet transmission order over the selected path, include the PSN in the packet, and transmit the packet. In some examples, if the packet is a re-transmit of a previously transmitted packet, the circuitry is to: select a path for the re-transmit packet, and set a PSN of the re-transmit packet that is a current packet transmission number for the selected path for the re-transmit packet. In some examples, a network interface includes circuitry to process a received packet to at least determine a Path Sequence Number (PSN) for the received packet, wherein the PSN is to provide an order of packet transmissions for a path associated with the received packet, process a second received packet to at least determine its PSN, and based on the PSN of the second received packet not being a next sequential value after the PSN of the received packet, cause transmission of a re-transmit request to a sender of the packet and the second packet.

A packet transmission method, including receiving, by a session management function network element, first access network tunnel information and second access network tunnel information that correspond to a first service, and sending a downlink forwarding rule to a user plane function network element, where the downlink forwarding rule includes the first access network tunnel information and the second access network tunnel information, and the downlink forwarding rule indicates the user plane function network element to replicate a received downlink packet of the first service, and send downlink packets of the first service through two paths respectively corresponding to the first access network tunnel information and the second access network tunnel information.

The invention relates to the technical field of information processing, in particular to an Internet of Things data processing method and system based on a cloud platform, and the method comprises the following steps: based on multi-modal data uploaded by Internet of Things equipment, analyzing equipment node data synchronization delay and timestamp matching degree, carrying out the statistics of node communication frequency and equipment relevance, screening a communication optimal node pair, and carrying out the communication optimal node pair; and carrying out identifier distribution, calculating a data packet transmission success rate, and forming a node identifier distribution result. According to the method, the multi-modal data uploaded by the Internet of Things equipment is analyzed, the node communication efficiency is optimized, accurate allocation of communication resources is realized, the transmission delay and failure rate are reduced, the data transmission efficiency is improved, the data access popularity is identified, the utilization rate of storage resources is improved, the service life of the equipment is prolonged, and a high-frequency data retrieval path is dynamically optimized; the retrieval speed and accuracy are improved, the response time is shortened, and the data processing efficiency and the resource utilization rate are comprehensively improved from collection to storage, transmission and retrieval.

The invention relates to a data packet transmission method and device, computer equipment, a computer readable storage medium and a computer program product. The method is applied to a receiver and comprises the steps that under the condition that configuration information of the receiver supports a custom extension header, a first data packet in a sending window is acquired through a transmission channel, and the first data packet carries a serial number and the custom extension header; the user-defined extension head comprises a step length; and under the condition that an out-of-order data packet is received, writing the out-of-order data packet into the corresponding first storage position according to the serial number of the out-of-order data packet, the serial number of the first data packet, the step length and the length of the custom extension head, and returning a confirmation signal of the out-of-order data packet through the transmission channel. By adopting the method, the transmission efficiency of the out-of-order data packet can be improved.

One example method includes accessing at a Time-Aware Scheduler (TAS) of a Time-Sensitive Networking (TSN) network a plurality of data packets, where each data packet includes a data packet priority that defines an order for transmitting the plurality of data packets by the TSN network; grouping the plurality of data packets into a cluster according to the data packet priorities, the cluster identifying a first TSN network state; applying a first machine-learning model to the cluster to determine a TAS cycle policy that defines a timing schedule for data packet transmission in the TSN network; and providing the TAS cycle policy to components of the TSN network.

The present application relates to the technical field of network routing, and discloses a method and system for adaptively adjusting network routing, the method comprising: performing detection data packet transmission and hierarchical clustering on a network interface to obtain a path cluster set; performing double-circular matrix encoding on the path cluster set to obtain a routing path encoding set; constructing a spatiotemporal feature tensor based on the routing path encoding set, and performing tensor decomposition and feature pattern extraction to obtain a time-varying weight coefficient; performing sparse-aware proportional iterative optimization calculation based on the spatiotemporal feature tensor and the time-varying weight coefficient to obtain an optimal routing configuration scheme, thereby achieving differentiated processing of different business flows and improving network resource utilization efficiency.

The invention relates to a quic-based data transmission method and system, and relates to the technical field of communication, and the method comprises the steps that a PTO timer is set to monitor data packet loss, and a client sends a data packet on a main path and records the packet loss frequency according to the PTO timer. Migration judgment is carried out, wherein whether the packet loss frequency exceeds a threshold value or not, whether data packets are continuously lost or not and whether connection migration is needed or not are judged; if migration is needed, a connection migration strategy of the main path and the standby path is formulated according to the migration standard, the size of an initial window is set after the legality of the standby path is verified, and finally the client switches a data packet transmission link to the standby path and continues to send the data packet. According to the method, the data transmission problem caused by network jitter and equipment faults can be effectively solved, and the reliability and the stability of data transmission are improved.

Disclosed are systems, apparatuses, methods, and computer-readable media for asynchronous execution of data path service using network fibers. A method includes: based on receiving a first packet within a service for transmitting the first packet to a destination location, processing a first portion of the first packet in a processor based on execution of a first fiber until a first hardware call is reached; sending the first packet to a first circuit for processing the first packet based on the first hardware call; and processing a portion of a second packet associated with a second fiber while the first packet is processing in the first circuit. The systems and apparatuses prevent heavy processing of content from blocking other content.

The invention relates to a real-time reliable control-oriented network coding communication method, which comprises the following steps of: S1, initializing encoder parameters, establishing an end-to-end analog channel for data packet transmission, carrying out finite field-based random coefficient coding on a data packet transmitted from an upper layer, and packaging a corresponding data packet header, and sending the data to a corresponding receiving end through a UDP protocol. And S2, initializing decoder parameters, acquiring transmitted coded data by monitoring a UDP (User Datagram Protocol) port, de-encapsulating a data packet, and carrying out corresponding decoding operation according to packet header information so as to recover the data packet lost in the transmission process. According to the method, under the condition of not depending on feedback retransmission, when the communication environment of the industrial Internet of Things is severe, high real-time performance lower than 1 ms in-sequence time delay (the blocking time of a data packet in a decoder) is achieved, and high-reliability data transmission with the error rate smaller than 10 <-5 > is achieved.

The invention discloses a dynamic bypass fault-tolerant router in a network-on-chip. The dynamic bypass fault-tolerant router comprises input and output ports, an input buffer area, a crossbar switch, a routing calculation unit, a self-checking circuit and a bypass channel. Key features comprise a fault information unit, a bypass selector, a single flit buffer area and an arbitration unit. The router detects the self-fault through the self-checking circuit, and the fault information unit stores the information. And if the router fails, the bypass selector transmits the data packet through the bypass channel and bypasses the failed router. If the router is healthy, the router exchanges fault information with an adjacent router, the fault information is used for routing decision of a data packet after integration, and meanwhile, the router can select a routing path with smaller congestion in an effective direction according to the flow distribution condition in a network. According to the method, the area overhead is relatively low, the routing hop count of the data packet is remarkably reduced, the transmission delay of the data packet is reduced while the high reliability is maintained, and the network throughput is improved.

A data packet transmission method and apparatus are provided. The method includes: An IAB donor determines first configuration information, where the first configuration information is used to indicate a first backhaul link BH RLC channel, and the first BH RLC channel is used to transmit a control protocol data unit PDU at a backhaul adaptation protocol BAP layer. The IAB donor sends the first configuration information to an IAB node. According to the foregoing procedure, the IAB donor indicates, by using the first configuration information, the IAB node to send the control PDU at the BAP layer through the first BH RLC channel, to implement bearer mapping when the IAB node needs to send the control PDU at the BAP layer.

The invention provides a packet transmission method, device and equipment based on credit values, which are used for solving the technical problem of credit value waste caused by the original CBRC algorithm. According to the invention, on the basis of the original CBRC algorithm, the credit value accumulation upper limit threshold is set at the sending end and is notified to the receiving end, so that the receiving party can subsequently reduce the credit values issued to the receiving party to avoid the waste of the credit values.

The embodiment of the invention provides a data packet transmission control method and device, a computer readable medium and equipment. The transmission control method comprises the following steps: receiving data packets respectively sent by a data source through a plurality of transmission paths; calculating a hash value corresponding to the data packet according to the packet information of the received data packet; if the Hash value corresponding to the data packet is found in a Hash value storage space, the data packet is discarded, and the Hash value storage space is used for storing the Hash value corresponding to the received data packet; and if the hash value corresponding to the data packet is not found in the hash value storage space, storing the hash value corresponding to the data packet in the hash value storage space, and transmitting the data packet to a downstream service. According to the technical scheme provided by the embodiment of the invention, on the premise of discarding repeated data packets and reducing bandwidth occupied by network transmission, the memory space occupied by storing the information of the received data packets can be reduced, and the data transmission efficiency can be improved.

Methods and apparatuses for improving network packet transmission performance in terms of latency with reduced packet retransmission times and fewer packet drops in congested networks are provided. Packet-switched networks can experience long delays while waiting for out-of-order packets or re-transmissions of lost packets. In addition, network faults such as transmission path failures can result in excessive delay while attempting to find a new route over which to transmit packets. To improve packet transmission performance, application data may be encapsulated into first network packets by a first transport protocol having an interface exposed to the application, in the first network packets may be encapsulated into second network packets according to a second transport protocol. The second transport protocol can enable the second network packets of a same packet flow to be transmitted across multiple paths over the network.

The invention discloses a communication path determination method and device. In the method, a first network element receives a path selection request sent by a session management network element, the first path selection request being used for requesting to select a user plane network element for a session of a terminal device; the first network element selects a user plane network element for the session of the terminal equipment according to the path selection request and acquired network information, and the network information comprises routing information of a data network connected with at least one user plane network element or a subnetwork connected with the terminal equipment; and the first network element sends the information of the selected user plane network element to the session management network element. According to the method, the mobile communication system can select the user plane network element for the terminal equipment based on the routing information, so that a guarantee is provided for message transmission of a user through the user plane network element or a transmission path between the user plane network elements, and the message forwarding efficiency is improved.

A QUIC packet transmission method comprises setting a QUIC header in a next header of an IPV6 extension header, or setting the QUIC header inside an IPV6 extension header, so that the QUIC packet carries the QUIC header without carrying a UDP header.

The embodiment of the invention provides a congestion control method and device, electronic equipment and a storage medium, and relates to the technical field of congestion control. The method is applied to a network-on-chip, and the network-on-chip comprises a back pressure signal generator and a plurality of routing nodes. The routing node comprises a plurality of output ports and a plurality of input ports, and the method comprises the following steps: under the condition that a first output port of a first routing node is congested, a back pressure signal generator obtains a data main input port corresponding to the first output port from a link flow table of the first routing node; transmitting the back pressure signal from the main input port to a second routing node adjacent to the first routing node; based on the link flow tables of the second routing node and the other routing nodes, the back pressure signals are sent to the corresponding source routing nodes in sequence; and on the basis of the back pressure signal, the packet sending behavior of the equipment corresponding to the output port, receiving the back pressure signal, of the source routing node is subjected to flow limiting, and the congestion control speed is higher and more accurate.

A method for forwarding a packet is disclosed. The method includes: receiving a first packet, where a first packet header of the first packet includes a segment list used to forward the first packet, the segment list includes a plurality of sequentially arranged identifiers, each of the plurality of identifiers corresponds to one network device or one link, the list includes a first element whose length is 128 bits, the first element includes at least two adjacent identifiers in the plurality of identifiers, and the first packet includes a first pointer; determining a location of a first identifier in the first element based on a value of the first pointer, where the first identifier is one of the at least two identifiers; copying at least one identifier starting from the first identifier to a second packet header of the first packet, to generate a second packet; and sending the second packet. According to the method, a length of the segment list can be reduced, and packet transmission efficiency can be improved.

Embodiments herein relates to a method performed by a network node (12,15,20), for calculating an UL radio access network average delay in a wireless communication network comprising a first radio network node (12) and a second radio network node (13) providing dual connectivity to a UE (10). The network node (12,15,20) applies a weighting to a number of packets respectively sent via the first radio network node (12) and the second radio network node (13) when no packet duplication is applied, wherein the weighting further includes a number of packets sent via the first radio network node (12) and the second radio network node (13) when packet duplication is applied or a time period during which packets were sent via the first radio network node (12) and the second radio network node (13) when packet duplication is applied, and wherein the weighting also includes a respective delay calculation for one or more packets, or periods, with duplication, and one or more packets, or periods, without duplication. The network node (12,15,20) calculates an UL radio access network average delay of a packet transmission taking into account the applied weighting, and further also taking into account an uplink delay component reported by the UE (10), wherein the uplink delay component is not separated into a first radio network node part and a second radio network node part.

The invention provides a data packet transmission link selection method and device, electronic equipment and a medium, and relates to the technical field of network security, and the method comprises the steps: determining a target data packet needing to be sent to a receiving end; determining a network environment parameter corresponding to each transmission link according to a plurality of indexes representing the network environment of a plurality of transmission links between the transmission links and the receiving end; sorting the plurality of transmission links according to the network environment parameter corresponding to each transmission link to obtain a transmission queue; and selecting a transmission link from the plurality of transmission links according to the transmission queue, and transmitting the target data packet to the receiving end by using the selected transmission link. According to the embodiment of the invention, the network environment of a plurality of transmission links can be considered, and the transmission link is selected from the plurality of transmission links for data packet transmission, so that the problem of high packet loss caused by single-path transmission or multi-path polling transmission is relieved, and the data transmission effect is improved.