288 results about "QUIC" patented technology

Embodiments of the invention provide methods, apparatus, and media to perform selective QUIC datagram payload retransmission. In one embodiment, a method is performed by a proxy network device that is on a path between a first and a second peer network device. The method includes determining, for an end-to-end packet-based traffic flow between the first and second peer network devices, a first duration to perform traffic forwarding between the first peer network device and the proxy network device, and a second duration to perform traffic forwarding between the proxy network device and the second peer network device. The method further includes, based on the first and second durations, causing retransmission of an end-to-end packet embedded as a pay load of a QUIC datagram, where the end-to-end packet was previously transmitted between the first peer network device and the proxy network device.

The invention relates to a QUIC protocol-based distributed node unified identity authentication method and system, belongs to the technical field of network security, is applied to a client, and comprises the following steps: registering a client domain name identity through a certificate authority, obtaining a client certificate, and pre-storing a server certificate chain; generating a QUIC initial data packet according to the target server domain name identifier and the client certificate, and sending the QUIC initial data packet to the server; receiving a QUIC handshake data packet returned by the server; verifying the legality of the server certificate based on the server certificate chain, and if the server certificate is legal, calculating a pre-master key according to the client DH private key and the server DH public key; deriving a 1-RTT session key based on the pre-master key; generating a signature verification message, and sending the client certificate and the signature verification message to a server; and synchronously using the 1-RTT session key to encrypt the application layer data with the server, and transmitting the data to the server in the 1-RTT encryption space of the QUIC protocol. According to the invention, the reliability of node identities and the confidentiality of data are ensured.

The invention discloses a reliable communication system based on a publishing and subscribing mode in a satellite-ground weak network environment, and aims to solve the problems of high round-trip delay, limited link bandwidth, high instantaneous packet loss rate, easiness in blocking and switching influence of links and the like in a data transmission process between a low-orbit satellite and a ground station. A publishing and subscribing model is introduced into an application layer to realize service logic decoupling, deep fusion with an underlying enhanced QUIC transmission protocol is realized, and mechanisms such as message persistence, breakpoint resume, forward error correction and connection migration are combined, so that stable, orderly, complete and safe transmission of service data can still be ensured under the conditions of link instability, quality fluctuation and communication interruption, and the service data transmission efficiency is improved. And high availability and continuity of a satellite-ground communication task under a weak network condition are realized.

The invention relates to the technical field of network management, and discloses an intent-driven network management method and system based on a large language model (LLM). The method comprises the following steps: receiving a natural language intention of a network administrator, analyzing the intention by utilizing a pre-trained large language model, extracting a key target and constraint, generating a configuration scheme of a TCP / IP or QUIC protocol based on an analysis result and a network protocol knowledge base, and ensuring the effectiveness and safety of configuration through a network constraint verification module. And the configuration passing the verification is applied to the network system. The system comprises an intention input module, an LLM analysis module, a configuration generation module, a verification module, an application module and the like. According to the invention, through conversion from automation intention to configuration, the network management process is simplified, the management efficiency and flexibility are improved, the method is especially suitable for multi-parameter optimization scenes of protocols such as TCP / IP and QUIC, and intelligent network management is realized.

A QUIC encrypted traffic classification method based on multi-model fusion belongs to the field of communication, and comprises the following steps: a model training stage: dividing a data set, training each model in a high-precision model group and a high-recall-rate model group by using a training set, evaluating model performance by using a verification set, if a dynamic weight mechanism is started, calculating the weight of the model according to a model evaluation result, and if the dynamic weight mechanism is started, calculating the weight of the model; carrying out normalization processing on the weight, and searching an optimal decision threshold by using a plurality of candidate thresholds; in the model prediction stage, prediction data are input, each model generates a respective prediction probability, and if a dynamic weight mechanism is started, the prediction probability of each model is subjected to weighted averaging according to the weight obtained in the training stage so as to perform probability calibration; and combining the calibration probability of each model, judging the calibration probability through an optimal decision threshold, and generating a final classification prediction result. According to the method, the risks of overfitting and poor generalization ability of a single model are reduced, and QUIC encrypted traffic classification with high accuracy and stability is realized.

The invention discloses an intelligent call capability monitoring method and system based on a cloud mobile phone and a storage medium, and the method comprises the steps: collecting and preprocessing audio, video and other heterogeneous data through a QUIC protocol, dynamically evaluating the weight through a Transform architecture model to generate an abnormal confidence coefficient, triggering multi-modal data backtracking during abnormality, and carrying out the correlation analysis of a high-frequency sampling bottom hardware index. And constructing a three-level time sequence evidence chain and a root cause knowledge graph to position a fault root, and performing joint training and reinforcement learning parameter adjustment in combination with user feedback to realize online iteration of the model. The system comprises a heterogeneous data fusion acquisition unit, a dynamic weight evaluation unit and the like, and the steps of the method are correspondingly executed. According to the invention, through multiple dimensions, full-process accurate monitoring of the call data, rapid abnormal positioning and efficient solution are realized, a closed-loop optimization system is constructed, continuous evolution of a monitoring model is promoted, the cloud mobile phone call quality and the user experience are remarkably improved, and a solid technical guarantee is provided for the cloud mobile phone call service.

Apparatuses, methods, and systems are disclosed for multipath QUIC for ATSSS using stream-aware steering mode. One method includes establishing a multiaccess data connection with a mobile communication network. The method includes establishing a plurality of QUIC connections, each QUIC connection supporting data transmission with a mobile communication network over first and second access networks. The method includes detecting a data packet to be transmitted via the multiaccess data connection and selecting a first steering rule from a configured set of steering rules. The method includes selecting a first QUIC connection of the plurality of the QUIC connections. The method includes allocating a new stream in the first QUIC connection, where the new stream is configured to transmit data traffic using a steering mode of the first steering rule and sending the data packet using the new stream.

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.

The invention belongs to the technical field of audio and video fusion transmission, and discloses an audio and video signal fusion transmission method and device, equipment and a medium, and the method comprises the steps: extracting 512-dimensional semantic feature vectors of an audio and a video, and generating a joint feature matrix through a cross-modal attention mechanism; calculating a fusion feature flow based on a coefficient alpha output by the scene classification model; a quantum random number generator is used for generating a session master key Kmain, the session master key Kmain is packaged into an encrypted session key Kenc through a Kyber-768 algorithm, and frame-level dynamic encryption is carried out on the fusion feature flow; and selecting a GPMI Type-B wired protocol or wireless transmission based on QUIC according to the transmission environment. According to the invention, the transmission efficiency, the anti-interference capability and the anti-quantum-attack security are improved, and multi-scene requirements are met.

Techniques for encoding metadata representing a policy into a QUIC connection ID are described herein. A metadata-aware network including one or more enforcement nodes, a policy engine, and / or a connection datastore may be utilized to enforce a policy and route communications on a QUIC connection. The policy engine may be configured to encode metadata representing one or more network policies into a QUIC source connection ID (SCID) and / or may store a mapping between the SCID and a corresponding destination connection ID (DCID) in the connection datastore. The policy engine may communicate with a QUIC application server and / or one or more QUIC proxy nodes to encode the SCID into a QUIC packet. The enforcement nodes may access the metadata and enforce the policies via a connection ID included in a QUIC header of a QUIC packet or by performing a lookup in the connection datastore using the connection ID.

The invention discloses a quantum key distribution method and system after satellite communication based on QUIC, and belongs to the field of information security. The method comprises the steps that a two-stage key distribution method is designed, in the first stage, a ground control terminal sends a public key in a public and private key pair generated by a post-quantum key encapsulation algorithm to a satellite terminal requesting to initiate, and the ground control terminal retains a corresponding private key; wherein the public key is used for generating an application key and a key ciphertext, and the private key is used for decrypting the key ciphertext to obtain the corresponding application key; in the second stage, exchange of application keys of the ground control terminal and the satellite terminal is completed; a two-stage key distribution method is integrated with a QUIC protocol, and a next-generation post-quantum encryption algorithm is introduced into the QUIC protocol. The method has the capability of resisting future quantum computing attack, can reduce the computing consumption of the satellite terminal, is low in transformation and migration cost, and is also suitable for multi-scene adaptive use.

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.

Techniques for managing migrations of QUIC connection session(s) across proxy nodes, data centers, and / or private application nodes are described herein. A global key-value datastore, accessible by proxy nodes and / or application nodes, may store mappings between a first QUIC connection, associated with a proxy node and a client device, on the frontend of the proxy node and a second QUIC connection, associated with the proxy node and an application node, on the backend of the proxy node. With the global key-value datastore being accessible by the proxy nodes, when a proxy node receives a QUIC packet on the front end or the back end, the proxy node may determine where to map this connection to on the opposite end. Additionally, with the global key-value datastore being accessible to the application nodes, when an application node receives a QUIC packet, the application node may determine the client device associated with the connection.

The present disclosure relates to an interaction method, system and apparatus, and a non-volatile computer-readable storage medium, and relates to the technical field of communications. The interaction method includes: establishing a signaling channel with a client through a QUIC protocol; and before or at the same time when the client establishes an ICE connection, delivering a media data packet through the signaling channel.

The invention relates to a smart home equipment control method and system based on QUIC point-to-point communication, and belongs to the technical field of smart home control, and the control method comprises the steps: receiving a natural language instruction of a user terminal, and carrying out the analysis to obtain a target equipment identifier and an operation intention description text; retrieving a pre-constructed equipment registry according to the target equipment identifier, and obtaining a corresponding cue word template and a QUIC connection address; calling an artificial intelligence model deployed locally, and outputting a structured equipment control instruction in combination with the operation intention description text and the cue word template; performing signature encryption on the structured equipment control instruction, establishing a QUIC end-to-end encryption transmission channel between the user terminal and the target equipment, and transmitting the QUIC end-to-end encryption transmission channel to the target equipment; receiving operation response data fed back by the target equipment after the target equipment verifies and executes the structured equipment control instruction; the device registry is dynamically optimized based on the operational response data. According to the invention, the risk of cloud service privacy leakage can be reduced, and the data security of the smart home system is improved.

The invention discloses a video information processing method, and relates to video transmission, and the method comprises the steps: obtaining a video stream of a video conference participant, and obtaining auxiliary information from a video conference system; dividing the auxiliary information into control type information and content type information; establishing a first transmission channel independent of a video stream for the control type information through a WebSocket or QUIC protocol; establishing a second transmission channel associated with the video stream for the content information through an SEI mechanism or an RTCP channel of the video encoder; respectively transmitting the control type information and the content type information according to the first transmission channel and the second transmission channel, and adding a serial number and a timestamp to the transmitted information; and receiving the auxiliary information at a receiving end, and performing timestamp alignment and synchronization processing on the auxiliary information and the video stream according to the serial number and the timestamp to generate a synchronous data structure. Aiming at low transmission reliability of the auxiliary information under the condition that the network condition is unstable, the application improves the transmission reliability of the auxiliary information under the condition that the network is unstable.

In one embodiment, an illustrative method herein may comprise: obtaining, by a device, one or more independent telemetry streams, wherein each of the one or more independent telemetry streams is uniquely identifiable by a span identifier; translating, by the device, each of the one or more independent telemetry streams into a corresponding QUIC protocol stream; mapping, by the device, the span identifier of each of the one or more independent telemetry streams to a respective stream identifier that uniquely identifies a QUIC channel of a multiplexed QUIC protocol stream; and communicating, by the device, the multiplexed QUIC protocol stream containing each of the one or more independent telemetry streams on its corresponding QUIC channel to cause a retrieving device to determine the span identifier of each of the one or more independent telemetry streams based on their respective stream identifier.

The invention discloses a multi-link data return system and method based on a low-altitude aircraft and a medium, and the system comprises an airborne multi-link communication gateway which is used for connecting a plurality of communication links at the same time, and dynamically selecting the communication link with the optimal current performance based on link quality parameters for data return; the protocol conversion module is used for receiving the TCP data stream from the aircraft intranet equipment and converting the TCP data stream into a QUIC data stream in a QUIC protocol; the data encryption module is used for performing end-to-end encryption processing on the QUIC data stream to generate an encrypted QUIC data packet; and the data transmission module is used for receiving the encrypted QUIC data packet, keeping QUIC connection when an IP address changes through a Consection ID mechanism of a QUIC protocol, and sending the encrypted QUIC data packet to a ground receiving end through the selected optimal communication link. According to the invention, seamless switching among multiple links and efficient and safe data transmission are realized.

Examples described herein relate to an interface and circuitry. The circuitry can perform offloaded performance of a cryptographic handshake with a client in connection with initiation of a quick User Datagram Protocol Internet Connections (QUIC) connection with the client. In some examples, the cryptographic handshake comprises process a first client hello datagram from the client, the first client hello datagram is consistent with QUIC, and the offloaded performance of the cryptographic handshake with the client is offloaded from a processor to the circuitry.

The invention discloses a few-sample increment website fingerprint identification method and system based on QUIC specific characteristics and a graph structure, a medium and a program product, and aims to solve the problem that QUIC encrypted traffic is difficult to effectively identify by a traditional method. According to the system, firstly, multi-dimensional features of QUIC traffic are extracted and constructed into a graph structure, and the global relevance between the traffic features is captured; then, deep mining is carried out on the features by utilizing a graph analysis technology, and the expression ability of the model to the traffic features is enhanced; and finally, through an incremental learning mechanism, the system can quickly adapt to newly appearing QUIC website traffic, and dynamic updating of a website recognition model is realized, so that the recognition precision and the real-time response capability are remarkably improved. According to the method and the device, through feature extraction and incremental learning for the QUIC traffic, efficient identification of the newly appearing website traffic is realized, and the accuracy and adaptability of website identification in an encrypted traffic environment are remarkably improved.

A wireless communication method for use in a first wireless network node is disclosed. The method includes receiving, by a session management node from a user plane node, a quick UDP Internet connection, QUIC, traffic handling support indication; and transmitting, by the session management node to the user plane node, a QUIC handling instruction in response to the QUIC traffic handling support indication to request the user plane node to detect a QUIC traffic.

The invention relates to the technical field of network communication, and discloses a weak network adaptive multipath transmission method and system, and a storage medium. The method comprises the following steps: performing multi-path connectivity and quality detection on a target server, constructing a candidate set comprising a first path of a native UDP bearing QUIC, a second path of a TCP tunnel packaging QUIC and a third path of a TCP combined TLS, and performing initial selection of a main path according to the priority from high to low; periodically collecting and smoothly processing network quality indexes such as round-trip delay and packet loss rate during the connection duration; and when the monitoring data meets a preset degradation condition, reordering and switching the candidate paths in combination with a lag mechanism and a comprehensive quality scoring model. Through multi-dimensional perception and a dynamic strategy, the problem of QUIC failure caused by UDP blocking in a firewall interference or weak network environment is solved, the advantages of a QUIC protocol can be reserved to the greatest extent on the premise of not interrupting services, and the reliability and fluency of data transmission are remarkably improved.

Methods, systems, and computer readable media for processing QUIC communications in a network. An example system includes a first network interface for receiving a QUIC connection request from a first node in the network and, in response, establishing a first QUIC connection between the first node and the system. The system includes a QUIC processing module configured for receiving, via the first QUIC connection, encrypted QUIC data including a number of streams and decrypting the encrypted QUIC data, resulting in decrypted QUIC data. The QUIC processing module is configured for extracting each of the streams from the decrypted QUIC data, resulting in a plurality of extracted streams, and packaging at least one of the extracted streams into a non-QUIC protocol format, resulting in at least one packaged stream. The system includes a second network interface for transmitting the packaged stream to a second node in the network.

The invention provides an intelligent audio and video data transmission method and device in a weak network environment, and the method comprises the steps: building a connection identifier in a protocol of an audio and video gateway based on a QUIC protocol, and connecting an interface request when a migration gateway parameter changes through the connection identifier; receiving a frame sequence, and maintaining an initial frame after the frame sequence is distributed as an IDR frame through the first frame buffer sequence container; when the read-write speed of the frame sequence is smaller than a frame tearing critical value, a second frame buffer sequence container is newly built, and frame buffer is carried out through the first frame buffer sequence container and the second frame buffer sequence container; the optimal execution action is obtained through optimization of an MDATDA algorithm, and the frame sequence obtained after frame caching is completed is played through the execution action. The method supports the video connection migration of the client, and can improve the transmission efficiency in a mobile network and weak network environment.

The invention provides a Web page first screen loading acceleration method and system, a medium and equipment, and relates to the technical field of Web front-end performance optimization and network transmission, the method comprises the following steps: after obtaining a request of a user for accessing a URL (Uniform Resource Locator), analyzing an HTML (Hypertext Markup Language) and constructing a DOM (Document Object Model) tree; marking first screen resources to obtain a first screen resource list; key resources are inserted into the head of the loading queue, and non-key resources are marked as defer; if the weak network is detected, degrading the picture quality; after the CSSOM is ready, text and layout are rendered immediately, and placeholders are replaced after pictures are asynchronously loaded; when the delay is high, switching to an edge CDN node or starting a QUIC protocol; and pre-fetching resources are predicted based on user behaviors, and the pre-fetching resources are stored in a Service Worker cache. According to the method, the first screen loading time can be shortened, the maximum content drawing time is shortened, the network transmission cost is saved, and the cache utilization efficiency is improved.

The invention discloses a QUIC protocol secure transmission method based on hierarchical encryption, and the method comprises the steps: collecting control message data, sensor data and video image data, and adding feature parameters to the data; introducing an XGBoost decision tree model, and training the XGBoost decision tree model by using the data added with the characteristic parameters to obtain a trained XGBoost decision tree model; dividing data input into the model into control message data, sensor data and video image data by using the trained XGBoost decision tree model; the control message data is classified as a high-level data layer, the sensor data and the video image data are classified as a secondary data layer, and the data sending end encrypts the high-level data layer and the secondary data layer respectively to obtain encrypted data streams; in combination with the QUIC protocol, the data sending end encapsulates and integrates the encrypted data streams into the QUIC encrypted data packets, and completes the secure transmission of the data, thereby achieving the improvement of the encryption efficiency and overall performance of the QUIC protocol.

The present application provides a media streaming method. The method is applied to user equipment, and includes: obtaining a uniform resource identifier for accessing an RTMP server; determining whether the uniform resource identifier carries a QUIC identifier; establishing a QUIC connection with the RTMP server based on a QUIC transport protocol in response to determining that the uniform resource identifier carries the QUIC identifier, and establishing a target RTMP connection that is based on the QUIC connection. In the present application, the QUIC connection and the target RTMP connection that is based on the QUIC connection are established based on the uniform resource identifier carrying the QUIC identifier. In this way, an RTMP packet is encapsulated into a QUIC packet, and data is transmitted through the QUIC connection. Therefore, real-time performance of transmission is improved.

The invention discloses a video fragment transmission method and device and a video fragment receiving method and device, and relates to the technical field of communication, and the method comprises the steps: carrying out the fragmentation of a target video, and obtaining a fragment set containing N video fragments, and creating a plurality of data streams based on the QUIC protocol according to the number of the fragments, the buffer limit requirements and the equipment resources, transmitting the fragment set to the server by adopting the plurality of data streams, transmitting video fragments by adopting a time-sharing alternating strategy for each data stream in the plurality of data streams, and transmitting video fragments by adopting a concurrent strategy for the plurality of data streams. According to the invention, the technical problems that a fixed number of data streams are adopted to transmit video fragments in the prior art, network fluctuation cannot be handled, and the limitation is relatively strong are solved.

Systems and methods for Protocol Data Unit (PDU) Set identification for end-to-end encrypted traffic, such as QUIC traffic between a User Equipment (UE) and Application Server (AS). Mechanisms can include one or more of: (i) additional path identification with corresponding Connection IDs (CIDs), such as for even and odd sets; (ii) sharing of key information for access to set sequence numbering; (iii) coalescing PDU set identification information in capsules with encrypted packet data for PDUs over encrypted channels; and / or (iv) elimination of capsule information for a PDU set in subsequent transmissions following initial transmissions in order to reduce signaling overhead.

A data transmission method, device and system, in the method, a first access network device sends first information, the first information indicates a first address of a first tunnel, and the first tunnel is used for performing data transmission between a terminal device and the first access network device by using a first transport layer network protocol, the first address is associated with the first access network equipment; and establishing the first tunnel with the terminal device according to the first address. The method is used for designing a QUIC protocol suitable for being used between UE and access network equipment.