173 results about "User Datagram Protocol" patented technology

The invention relates to the technical field of digital relays, and discloses a digital relay telephone traffic real-time acquisition and intelligent distribution system for emergency scheduling, which executes the following steps through five modules: receiving and normalizing UDP (User Datagram Protocol) data through a time domain buffer management module, completing space-time matching of telephone traffic and media streams through a cross-protocol association engine, and completing real-time transmission of the telephone traffic and the media streams. And unsuccessful data triggers a reverse tracing service for remedy, the intelligent scheduling controller performs grading processing according to the emergency degree and dynamically deploys resources, and finally the data is intelligently distributed to a message queue cluster through an elastic load balancing module. By constructing a multi-level heterogeneous data processing framework and dynamic redundancy transmission, intelligent space-time alignment and elastic resource scheduling mechanisms, accurate routing of first-aid instructions and zero-loss guarantee of key data are achieved, meanwhile, the self-adaptive fault-tolerant capability of the system to abnormal working conditions such as equipment clock skew and burst flow is enhanced, and the system reliability is improved. And high-availability technical support is provided for digital upgrading of emergency dispatching.

A multi-room multi-channel audio synchronization method, apparatus, and device and a storage medium are provided. In this method, an audio signal to be played in a primary audio device is determined, the audio signal is encoded according to channels by using a preset low-latency audio encoding strategy and audio encoding data is obtained. Next, the audio encoding data is optimized based on a User Datagram Protocol and a Negative Acknowledgment NACK retransmission mechanism to obtain audio coded sequence data packets. The audio encoding sequence data packets are controlled to be synchronously played in at least one secondary audio device by using a preset room synchronization control strategy and a channel synchronization control strategy.

The invention discloses a multi-device collaborative passenger flow statistical method and system, and the method comprises the following steps: presetting a unique identity label and a physical position index for devices, reading the unique identity label and the physical position index, and initializing the attribute information of the devices; a user datagram protocol broadcasting mechanism is started, and heartbeat information including the unique identity label, the physical position index and the online state is sent according to a preset period; monitoring the user datagram protocol broadcast message in the local area network, constructing and maintaining an online equipment list, and updating the online state of the equipment according to the heartbeat information receiving analysis condition; judging adjacent equipment based on a physical location index, and deciding whether to start a first boundary or a second boundary according to the online state of the adjacent equipment; and the decision result is transmitted to a passenger flow statistical algorithm to generate a shop-crossing detection line. According to the invention, multi-device collaborative passenger flow statistics dynamic boundary configuration is realized, the shop-crossing detection line is accurately generated, and the passenger flow statistics problems of fixed boundary configuration, easy missed counting and poor multi-device collaboration are solved.

The invention discloses an edge cloud cluster dynamic conversion and service sharing method, system and device. The method comprises the following steps: determining a network quality index between nodes in an edge cloud cluster; under the condition that the number of the first nodes in the edge cloud cluster is greater than a first preset number, converting the edge cloud cluster into a master-free cluster; under the condition that the edge cloud cluster is a main-free cluster, each node shares the application service and the resource utilization rate of the own node with adjacent nodes in a preset range in a mode of broadcasting a user datagram protocol data packet; and under the condition that the edge cloud cluster is a master-free cluster, if any node detects that the network quality index between the node and other nodes with a preset number is greater than a preset threshold value, electing a master node from the nodes. According to the invention, the technical problems that the edge cloud cluster depends on the central cloud and the service between the nodes is unreliable in a high-mobility environment and a network limited condition are solved.

The invention relates to an IPSEC (Internet Protocol Security) key exchange method resistant to quantum computing. According to the invention, based on a lattice cryptographic algorithm and improved SM4-256 symmetric encryption, secure communication between a master mode and a fast mode is realized; in the main mode, an initiator sends an IKE first message through a UDP (User Datagram Protocol), negotiates SA parameters with a responder and exchanges a lattice password certificate; the two parties encapsulate a temporary 32-byte secret key by using the public key of the opposite party, generate a 512-bit random number through SM4-256 encryption, and sign and transmit the 512-bit random number to realize secure random number exchange and certificate verification; and the two parties calculate a first session key based on a PRF (Pseudo Random Function), and encrypt an exchange data HASH value to complete main mode key consistency confirmation. And after entering the fast mode, taking the main mode session key as an SM4-256 symmetric key to continue communication, sending an SA message carrying a 512-bit random number by the two parties, calculating to obtain a second session key, and establishing an ESP tunnel. According to the method, the security of IPSEC under the threat of quantum computing is improved through the lattice password.

Two electronic devices attempt to communicate and exchange Internet Protocol (IP) packets over a cellular communication network, and at least one of the two devices is behind a symmetric Network Address Translation (NAT) service. At least one of the two devices executes a Session Traversal Utilities for NAT (STUN) protocol, which provides to that device a pair of external IP address and port of that device; which that device then informs to a Message Broker Unit that is accessible to both devices via the public Internet. The Message Broker Unit provides the external IP address and port of that device, to the other device; which then connects to a Virtual Private Network (VPN) server and sends to the first device one or more User Datagram Protocol (UDP) packets that penetrate or puncture the NAT service in an application-agnostic manner.

The embodiment of the invention discloses a session keeping method and device, equipment, a medium and a product, and the method comprises the steps: determining a first container instance which builds transmission control connection with a client and first socket information of the first container instance, building the first socket information and second socket information of a cloud container cluster, the mapping relation between the first socket information and the second socket information and the third socket information of the public network corresponding to the second socket information; sending the third socket information to the client; and forwarding the user datagram protocol data packet sent by the client to the first container instance through the second container instance according to the mapping relationship. According to the technical scheme provided by the embodiment of the invention, the problem that cloud container session maintenance cannot be realized at present is solved, the UDP data packets of the client can be uniformly forwarded to the first container instance through the container instance for forwarding according to the socket mapping relationship by mapping the socket of the cloud container cluster to the socket of the first container instance, and the user experience is improved. Therefore, multi-protocol sessions can be maintained together.

The invention discloses a remote intelligent control system for multimedia equipment and an implementation method thereof, and belongs to the technical field of network communication, and the implementation method comprises the following steps: acquiring network environment information of the multimedia equipment, judging an NAT (Network Address Translation) type, and generating a mixed penetration protocol selection rule to determine an initial penetration protocol; the method comprises the following steps: acquiring port allocation characteristics of NAT equipment based on an initial penetration protocol, generating port prediction parameters through linear increment prediction and LSTM neural network training, and formulating a port prediction and keep-alive strategy; executing UDP (User Datagram Protocol) penetration according to a keep-alive strategy, starting a TCP (Transmission Control Protocol) standby mechanism when the UDP penetration fails, and generating a penetration scheme by combining HTTP tunnel encapsulation and firewall inbound rule configuration; equipment identification information collection, signaling interaction, penetration attempt and connection establishment are completed based on a penetration scheme, successful feedback is generated after verification is passed, and remote control is realized; according to the invention, the stability and efficiency of remote connection of the multimedia equipment in a complex network environment are improved.

The invention discloses a software-in-the-loop simulation test system and method for intelligent driving, and relates to the technical field of automatic driving algorithm testing. According to the scheme, a closed-loop test of an in-the-loop simulation test is realized only through an intelligent driving platform, a scene simulation software end and an initialized vehicle dynamics model group; all the components realize distributed communication through a user datagram protocol without additional hardware, so that complicated external communication configuration is not needed in a closed-loop test for realizing in-loop simulation test, multi-tool collaboration is simplified, and the complexity of a system structure is reduced. And the intelligent driving platform coordinates vehicle dynamics data according to a preset algorithm to carry out path planning and decision control, so that the interaction efficiency of software in a loop simulation test process is improved. And the vehicle dynamics model group is used for sending the RDB data packet to the scene simulation software end through the public user datagram protocol channel, that is, cross-component collaboration is realized through the public user datagram protocol channel, and the synchronism of closed-loop testing is ensured.

The invention discloses a data transmission method and device and electronic equipment. The method is applied to a data sending end and comprises the steps that a user datagram protocol UDP message sent by a data receiving end is acquired, and the UDP message at least comprises message header data and a data packet type; performing dual verification on the message header data and the data packet type to obtain a verification result; under the condition that the verification result indicates that the UDP message is successfully verified, a response message is sent to the data receiving end, and the response message is used for indicating that handshake between the data sending end and the data receiving end is successful; and transmitting the data requested by the data receiving end to the data receiving end through a remote direct memory access (RDMA) protocol. According to the scheme provided by the invention, data transmission can be realized on the FPGA side, and the complexity of data transmission is reduced.

System and method for air / ground data transport (AGDT) is provided. The system includes an Application Layer, a Session / Transport Layer, a QUIC / TLS Layer, a User Datagram Protocol (UDP) Layer, an Internet Protocol (IP) Layer, and an Internet Protocol (IP) Layer. If the data is small, the Session / Transport Layer selects MQTT transport protocol for control plane communication. If the data is large, the Session / Transport Layer selects rsync / SSH protocol for data plane communication.

The invention relates to the technical field of network transmission, in particular to a parallel coding and decoding method based on a multi-channel network TCP-UDP (Transmission Control Protocol-User Datagram Protocol). According to the invention, by constructing a multi-path parallel transmission mechanism of a transmission control protocol and a user datagram protocol, the transmission performance of each path can be dynamically evaluated and quantified according to the round-trip time and packet loss rate of the path at the beginning of session establishment, and the initial data distribution proportion is scientifically calculated, so that the initial optimization utilization of network bandwidth resources is realized; in the data transmission process, the actual sending rhythm and the bandwidth utilization condition of each link are continuously monitored, and the evolution trend of the bandwidth load is accurately identified through a time sequence prediction model, so that the path weight is dynamically modulated, the distribution proportion of the data packet is corrected in real time, and the data stream can be continuously and uniformly transmitted on the optimal path. The problems of transmission bottleneck and delay caused by performance fluctuation of a single path are effectively solved, and the reliability, stability and efficiency of data transmission are greatly improved.

The invention provides an efficient fragmentation sorting module for UDP (User Datagram Protocol) receiving and unloading, which is deployed in an FPGA (Field Programmable Gate Array) of an FC (Fiber Channel) communication daughter card, comprises modules implemented when an instruction set is executed, and specifically comprises a protocol analysis module, a flow identification module, a message storage module, a fragmentation sorting module and a message recombination module. Therefore, receiving and unloading of a big data packet of a UDP protocol in the FPGA are realized, out-of-order rearrangement is performed on the fragments in the FPGA, the fragments are recombined into a big data packet, and the big data packet is uploaded to a software driver and an upper-layer application through DMA, so that the network data processing efficiency in a high throughput scene is improved, and the purpose of improving the network communication performance is achieved.

A communication method and a communication apparatus, which are used for implementing communication between a terminal and a core network by means of a unified non-3GPP access gateway, thereby reducing the complexity of network deployment. The method comprises: receiving a first message from a terminal, the first message being used for requesting authentication, connection establishment or connection release, and the first message being an internet protocol security (IPSec) message, or the first message being a quick user datagram protocol internet connection (QUIC) protocol message; and sending a second message to a control plane network element, the second message being a non-access stratum (NAS) message determined on the basis of the first message.

The invention discloses a UDP (User Datagram Protocol)-based file batch transmission method and device and a medium, and the method comprises the steps: splitting each file in a file set into frame data, and obtaining a transmission queue; sending a push start request to the transmission queue, and pressing the first frame in the transmission queue into the task queue after a successful response is obtained; and dynamically allocating thread resources through a thread pool, asynchronously extracting frame data in the task queue, executing UDP transmission to the terminal set, obtaining a success response returned after the terminal set passes verification, traversing the transmission queue according to a sequence number identifier, and completing batch transmission of all files in the file set. According to the UDP-based file batch transmission method and device and the medium, asynchronous parallel processing of transmission tasks is achieved through frame data splitting, task queue management and dynamic resource allocation of the thread pool, the resource utilization rate and the transmission efficiency are effectively improved, and the user experience is improved. The problem that high-concurrency transmission of multiple terminals and multiple files is difficult to realize by utilizing limited resources can be solved.

Various embodiments of methods and systems for handling high definition (HD) map data messages by a processing system of a vehicle include receiving a plurality of HD map data messages each including sequence information in a first memory queue of the processing system via a user datagram protocol (UDP); storing a selected one of the HD map data messages in a second memory queue in response to determining that sequence information for the selected one of the HD map data messages is greater than an expected sequence number; and processing the HD map data message stored in the second memory queue in response to the sequence information of the HD map data message stored in the second memory queue matching the expected sequence number.

The invention provides a video processing method and device, electronic equipment and a storage medium, and the method comprises the steps: inputting ship monitoring video data into a preset video compression model, recognizing redundant data in a ship monitoring video, and carrying out the compression, and obtaining target ship monitoring video data; coding the target ship monitoring video data based on a forward error correction algorithm to obtain verification data; adding the verification data into the target ship monitoring video data to obtain target transmission data; and sending the target transmission data to a ship monitoring platform based on a user datagram protocol. According to the application, the ship monitoring video data is compressed through the preset video compression model to reduce the video data volume, the compressed video data is processed by using the forward error correction algorithm to obtain the target transmission data, and the target transmission data is sent to the ship monitoring platform based on the user datagram protocol. Accurate transmission of video data in a complex maritime communication environment is ensured.

Systems and methods for providing application-layer characterization is disclosed. Quick User Datagram Protocol (UDP) Internet Connection (QUIC) is an end-to-end encrypted, transport-layer protocol, with a goal to improve communication security and quality of experience (QoE) towards end-users. The systems and methods disclosed herein relate to estimating application-level traffic attributes without decrypting QUIC packets. Based on size, timing, and direction information available in the encrypted packet, the system analyzes associated network traffic to infer an identity of each request and response pair, including time, size, and request-response match, as well as multiplexing feature in each QUIC connection. In the case of request and response multiplexing, several requests will be gathered and matched as a group with their corresponding responses, to form a super request-response pair. The inferred attributes may be used to evaluate the QoE of application-layer services and identify the service categories for traffic classification in the encrypted QUIC connections.

The embodiment of the invention provides a network attack detection method and device, equipment and a storage medium, and the method comprises the steps: determining a traffic capture file according to received update function data in a preset time under the condition that the update function data received by a vehicle-mounted terminal meets a preset condition, and transmitting the determined traffic capture file to a vehicle-mounted terminal; the update function data comprises a firmware update request and / or a user datagram protocol packet; extracting traffic characteristics in the traffic capture file; converting the traffic characteristics into a traffic image; obtaining an attack detection result according to the traffic image; and when the attack detection result is that the network attack occurs, intercepting the update function data. According to the embodiment of the invention, the detection time can be remarkably shortened while high-precision attack detection is realized, the storage space occupation and computing resource consumption of the attack detection model are effectively reduced, the attack detection model is easier to deploy on edge equipment such as a vehicle-mounted terminal, and the OTA updating safety of the vehicle-mounted terminal is remarkably improved.

Methods and apparatuses are described herein for implementing multi-host multi-path secure transport using a Quick User Datagram Protocol (UDP) Connections (QUIC). A method performed by a client endpoint can involve sending, to a network node, a request to establish a QUIC connection with a destination endpoint, the request to establish the QUIC connection including a flow identifier (ID). The method can involve receiving, from the network node, a response including an indication of the request to establish the QUIC connection with the destination endpoint. The method can involve encapsulating inner QUIC packetized data within outer QUIC packetized data, the inner QUIC packetized data including the flow ID. The method can involve sending the outer QUIC packetized data to the network node for forwarding to the destination endpoint based on the flow ID.

The invention discloses a communication link establishment method and device based on a hardware firewall, equipment and a medium, relates to the field of network security, is applied to a target hardware firewall, and comprises the following steps: acquiring a first data packet sent by a target upper computer corresponding to the target hardware firewall; the target hardware firewall is managed by a target upper computer; the first data packet is a data packet constructed based on a user datagram protocol and encrypted based on a preset encryption rule; analyzing the first data packet based on a preset decryption rule corresponding to the preset encryption rule to obtain a corresponding analysis result, creating a session access rule based on the analysis result, and determining a target communication port corresponding to the session access rule; and acquiring a second data packet sent by the target upper computer, and establishing a target communication link based on the second data packet, the session access rule and the corresponding target communication port so as to perform communication based on the target communication link. According to the method and the device, the secure creation of the real-time session between the upper computer and the hardware firewall is realized.

Methods, apparatus, and systems that can be implemented to associate User Datagram Protocol (UDP) based connection identifiers with appropriate Quality of Service (QoS) flows are disclosed to enable Access Traffic Steering, Switching and Splitting functionality at lower layers and to allow accurate measurements of Round-Trip Time for all traffic on a session. In one example aspect, a wireless communication method includes determining, by one or more nodes in a core network for a session that comprises at least one QoS flow, at least two identifiers identifying two connections associated with the at least one QoS flow. The two connections are established according to a UDP based protocol. The method also includes establishing, by the one or more nodes in the core network, a mapping between the at least two connection identifiers and the at least one QoS flow.

The embodiment of the invention discloses a request sending method, which comprises the following steps of: determining a target interface from a first type of interface and a second type of interface which communicate through a fast user datagram protocol network connection protocol based on target information used for determining whether to call the first type of interface in a target network request library; and sending the request for acquiring the network information to the server through the target interface by using the target network request library, thereby solving the problem of poor communication efficiency between the client and the server in a data communication process in related technologies. The embodiment of the invention further discloses a request sending device and equipment, a computer storage medium and a computer program product.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect whether a traffic flow comprises multipath transmission control protocol (MPTCP) traffic or multipath quick user datagram protocol Internet connection (MPQUIC) traffic. The UE may modify one or more packets of the traffic flow based at least in part on a result of detecting whether the traffic flow comprises MPTCP traffic or MPQUIC traffic or based at least in part on an access traffic steering, switching, and splitting (ATSSS) policy configured on a modem processor of the UE. The UE may provide the traffic flow for transmission by the UE in accordance with the ATSSS policy configured on the modem processor of the UE. Numerous other aspects are described.

Disclosed in the present application are a registration method, a packet data gateway, a terminal device, and a storage medium. The registration method is applied to a packet data gateway (PDG). The method comprises: establishing a control plane connection with a terminal device on the basis of a Quick User-Datagram-Protocol Internet Connections (QUIC)-based control plane protocol; receiving a registration request message which is sent by the terminal device on the basis of the control plane connection, wherein the registration request message comprises identification information and a registration parameter of the terminal device; sending an authentication request message to a core network device on the basis of the identification information and the registration parameter of the terminal device; and receiving an authentication authorization message sent by the core network device, and sending a registration response message to the terminal device on the basis of the authentication authorization message.

A route advertisement method and a device for improving efficiency of generating a route advertisement message are disclosed. The method is applied to a network including a first network device and a second network device, and the first network device and the second network device establish a user datagram protocol (UDP)-based border gateway protocol (BGP) connection. The method includes: The first network device obtains one or more route sending groups, where each of the one or more route sending groups includes one or more pieces of route information; the first network device separately generates at least one route advertisement message based on each of the one or more route sending groups, each of the at least one route advertisement message includes the one or more pieces of route information in the route sending group corresponding to the route advertisement message; and the first network device sends the route advertisement message to the second network device through the BGP connection.

Particular embodiments described herein provide for a system, an apparatus, and a method that includes receiving a packet; parsing a header of the packet to determine a protocol type for the packet and to extract information from the packet. The method also includes matching a configured protocol field in the header of the packet to a specified value; determining a byte range for the packet using the specified value; and creating entropy for the packet by using data from the byte range. In more particular embodiments, the protocol type is identified by a destination port in the header, and wherein the protocol type is user datagram protocol (UDP) for the packet. In specific embodiments, the method includes accessing a database that includes a plurality of destination ports; and determining which bytes from the packet are included in the hash to create the entropy for the packet.

A node in a radio access network (RAN) receives (1281), from a user equipment (UE)), a User Data Protocol (UDP) packet including (i) a UDP payload and (ii) unencrypted metadata. The node further receives (1240) Differentiated Services Code Point (DSCP) assistance information. The node marks (1292), based on the unencrypted metadata and DSCP assistance information, a Packet Data Unit (PDU) including the UDP payload, including setting a DSCP field in an IP header of the PDU; and transmits (1299) the PDU to a core network (CN).

Various aspects of the present disclosure relate to techniques for sequence numbering with packet duplication and reordering for user datagram protocol (UDP) packets. An apparatus is configured to establish a communication session with a user equipment (UE), the communication session comprising multi-path quick UDP internet connection (MPQUIC) functionality; enable steering, switching, and splitting of UDP traffic between the UE and a proxy using the MPQUIC functionality; and transmit UDP packets between the UE and the proxy, the UDP packets encapsulated within datagram frames comprising an indication of an order of the datagram frames.

The invention discloses a data transmission method and device based on a UDP (User Datagram Protocol) and related equipment, and the method comprises the steps: receiving a UDP message sent by a sending end host, reading data from equipment corresponding to a source address in the message, taking the read data as an effective load in the message, and sending the read data and the message to a receiving end host, sending the effective load to a receiving end host, so that the receiving end host writes the effective load into a device corresponding to a destination address in the message, records receiving timestamp information in the message, completes data transmission, determines a packet loss rate of data transmission, judges whether a network is congested based on the sending timestamp information, the receiving timestamp information and the packet loss rate, and sends the message to the receiving end host. And if yes, adjusting the preset transmission efficiency. According to the invention, data transmission is completed by the network card based on the new field expanded by the UDP in the message, so that the data reading and writing process is completely completed by the network card without the participation of a CPU, the transfer process is reduced, and the data transmission efficiency is improved to a certain extent.