172 results about "Network code" patented technology

The invention discloses a goaf unmanned aerial vehicle inspection system based on monitoring and early warning, and the system comprises an observation data collection module which is used for collecting settlement and fracture main variables to form a time stamp observation set; the data fusion module is used for generating a unified monitoring data set by adopting a fractal small-world network coding consensus algorithm; the initial route planning module is used for constructing a route sequence based on a main variable evolution tensor and a risk map; the flight path execution module is used for collecting a flight path and environment data; the fault-tolerant control module triggers a fractional order sliding mode fault-tolerant and degradation mechanism based on the consistency error; and the closed-loop optimization module is used for dynamically updating the main variable tensor and the path cost function and outputting an optimized track and a structured early warning result. The system has high dynamic responsiveness and multi-source risk adaptability.

The invention discloses a recommendation system and method for keeping semantic integrity based on a large language model. According to the method, user-article interaction data and text information are fused, a prompt template of a user and an article is constructed, a configuration file with rich semantics is generated by utilizing a large language model, and initial embedded representation is extracted. Then, two-stage dimensionality reduction transformation is carried out through principal component analysis and a multi-layer perceptron, semantic information is reserved, and low-dimensional embedding is generated; on the basis of the embedding, cosine similarity is calculated, a user-user and article-article similar graph is constructed, and final embedding representation is generated through graph convolutional network coding. Meanwhile, collaborative filtering is combined to capture an interaction relationship and optimize a joint learning target, including recommendation loss, cross-modal comparison loss and regularization terms, so as to align semantics and collaborative filtering embedding, and finally generate a high-precision personalized recommendation result. The method effectively improves the semantic comprehension ability and recommendation accuracy of a recommendation system, and is suitable for various recommendation scenes.

The invention discloses a hydropower station water level detection method and system. The method comprises the steps that an original water flow characteristic parameter set is obtained through multiple sets of Doppler effect radar flow measuring devices; performing segmentation extraction to obtain a water flow feature sub-data set; inputting a Transform network coding layer to generate a water flow feature coding vector; outputting a preliminary water level predicted value sequence through a decoding layer; a radar flow measurement model is called for correction to obtain a correction sequence; time sequence integration is carried out to obtain a water level change curve. The system comprises a multi-source Doppler radar signal acquisition unit, a spatial-temporal feature segmentation extraction unit, a Transform coding processing unit, a water level preliminary prediction unit, a radar model correction unit and a time sequence integration output unit. According to the method and system, multi-source parameters are deeply fused, the environmental adaptability is improved, the continuity and reliability of a detection result are enhanced, the water level of the hydropower station can be accurately monitored, and support is provided for scheduling decision and safety prevention and control.

The invention discloses a heterogeneous network embedding method based on dynamic heterogeneous network decomposition and a hierarchical space-time attention mechanism. The method comprises the following steps: dynamic network decomposition: decomposing a heterogeneous network sequence into independent subgraph sets according to edge types; multi-order node attention aggregation: for each sub-graph, fusing information of nodes and different edge types; semantic level attention is embedded, wherein global semantic embedding is generated in combination with global relation type weight and meta-path long-short-term memory network coding; time dynamic modeling: respectively calculating a time attention weight and a Monte Carlo sampling approximate Horkes intensity, and then aggregating and splicing results of the time attention weight and the Monte Carlo sampling approximate Horkes intensity to obtain a final embedding result. According to the method, through cross-granularity semantic modeling and efficient time sequence dependence learning, an innovative solution is provided for node representation of the dynamic heterogeneous network.

The invention relates to the field of Internet of Things equipment security upgrading, and discloses an intelligent washing machine embedded software online upgrading method and system, and the method comprises the following steps: 1, a server side stores an encrypted upgrading program file and calculates a verification value, issues the verification value in a wireless manner at a set time, generates an equipment uniqueness voucher based on a physical unclonable function, and sends the equipment uniqueness voucher to the server side; establishing equipment identity binding; 2, dynamically calculating a network coding parameter based on the equipment uniqueness voucher according to a real-time channel quality parameter; and 3, based on the network coding parameters, carrying out dynamic block network coding transmission on the upgrade data, and generating an encrypted upgrade data packet by adopting chaotic encryption in the transmission process. According to the invention, an end-to-end security authentication system is realized by binding the unique voucher of the equipment and establishing an encrypted transmission channel. According to the scheme, the unauthorized access and firmware tampering are effectively prevented by utilizing the dual guarantee of hardware features and a cryptographic algorithm.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, configuration information indicating that network coding is enabled for initial transmissions associated with a multicast / broadcast service (MBS) and indicating that network coding is enabled for retransmissions associated with the MBS. The UE may receive, via a multicast traffic channel or a dedicated traffic channel, an initial transmission associated with the MBS, wherein the initial transmission is associated with a first set of encoded packets. The UE may transmit a radio link control (RLC) status feedback message associated with the initial transmission. The UE may receive, via the multicast traffic channel or the dedicated traffic channel, a retransmission associated with the initial transmission, wherein the retransmission is associated with a second set of encoded packets. Numerous other aspects are described.

The invention discloses a power dispatching master station robot autonomous inspection method and system based on SLAM and multi-mode perception. The method comprises the following steps: performing SLAM joint estimation through data fusion of a 3D LiDAR, a visual sensor and an IMU, performing inter-frame pose solution based on three-dimensional point set matching by adopting coordinate alignment and scale recovery, and introducing the IMU to perform cross-sensor consistency verification and adaptive pose optimization so as to solve the problem of positioning drift in a complex scene; meanwhile, natural language instructions are coded through a GRU network, visual features are extracted in combination with a residual network with an attention mechanism, time sequence fusion and modeling are carried out, and autonomous navigation decision making in a dynamic environment is achieved. The system comprises a corresponding SLAM estimation module, a multi-modal fusion decision module and an execution mechanism. According to the method, the positioning robustness, the navigation precision and the task adaptive capacity in the complex environment of the power dispatching master station are remarkably improved.

The invention discloses an unmanned aerial vehicle network multipath selection and network coding redundancy transmission method. The method comprises the following steps that each unmanned aerial vehicle carries out node state perception and link prediction; the source node initiates a multi-path routing discovery process based on the extended AOMDV routing protocol, performs path quality measurement, and selects a plurality of paths with the highest path quality as active transmission paths; the source node divides an original data block to be sent into a plurality of original data packets and encodes the original data packets respectively; performing optimal distribution based on a water injection algorithm; data forwarding and decoding receiving are carried out according to an optimal distribution result; and continuously detecting that the link communication actively triggers the maintenance process before the link is actually broken. According to the method, high-reliability, low-delay and energy-balanced data transmission is realized in a highly dynamic unmanned aerial vehicle network through a rigorous evaluation and optimization system, and the overall survival time of the network is effectively prolonged; and predictive route maintenance and fast route switching are carried out through the extended routing table.

Vector network coding, such as linear network coding, is used to compute a plurality of coded data parts from original data, wherein each coded data part is computed from a cryptographic hash function of a previous coded data part. A recipient of the coded data parts can compute the cryptographic hash functions of the coded data to reproduce a system of linear equations, which can be solved to recover the original data. A cryptographic key that employs a polynomial over a finite field can have polynomial coefficients that comprise a function of vector network coding coefficients.

The invention discloses a two-stage pulse data lossless coding method and device based on lossy coding and residual coding. Through a deep neural network, the preprocessed pulse data are used as input, probability distribution of latent variables and residual errors is obtained through two stages of lossy coding and residual error coding, and therefore corresponding code stream files are output, and the purpose of lossless compression of the pulse data is achieved. The existing coding model is not suitable for processing pulse data or is difficult to realize lossless coding; according to the method, a first pulse data lossless coding model is adopted, a bit splicing data preprocessing mode is adopted, so that the neural network is easier to mine data correlation, and a two-stage framework of lossy coding and residual coding is applied to ensure lossless coding. On the basis of the mode, the neural network coding model can be integrally optimized by utilizing an end-to-end training method, so that better pulse data lossless coding performance is obtained.

The invention discloses a self-adaptive anti-monitoring communication system, and relates to the technical field of communication security. The system comprises a multi-dimensional fusion sensing module, a dynamic adaptation engine, an encryption communication subsystem and a verification feedback module. The innovation points are that the monitoring situation is accurately researched and judged through multi-source information fusion, a communication parameter and an encryption strategy are dynamically matched based on a research and judgment result, a transmission mechanism combining improved adaptive frequency hopping and dynamic network coding is adopted, and meanwhile, a key dynamic updating and identity bidirectional verification system is constructed. The problems that in the prior art, self-adaptive adjustment is poor in pertinence, encryption and transmission efficiency is unbalanced, and anti-monitoring scene adaptation is single are solved, collaborative optimization of monitoring risk perception, dynamic defense and communication quality is achieved, and the safety and reliability of communication in the complex electromagnetic environment are improved.

A data processing method and apparatus are disclosed, which may be applied to communication systems such as 5G and 6G. The method includes: obtaining an extended first codebook based on a second codebook by increasing a quantity of codewords or lengths of codewords, and performing first network coding or decoding based on the first codebook. Linear independence between codewords in the extended first codebook may be ensured as much as possible, so as to generate more valid redundant packets or check packets, thereby improving system reliability. Alternatively, flexible block lengths are supported, so as to perform efficient network coding or decoding on more original data packets, thereby improving system spectral efficiency. This application may be applied to an extended reality XR service or another low-delay service.

Methods, architectures, apparatuses, and systems directed to configured grant (CG) uplink hybrid automatic repeat request (HARQ) operation with network coding (NC) are described herein. In an embodiment, a method may include transmitting a set of network coded protocol data units (NC-PDUs) of a NC generation in one or more transmit occasions of a CG period. The method may include transmitting NC related information associated with the NC generation to assist the network in decoding. The method may include monitoring to receive feedback information for the NC generation and transmitting one or more subsequent sets of NC-PDUs from the NC generation in one or more subsequent CG periods until the feedback information acknowledging a reception of the NC generation may be received.

The invention discloses a data transmission method, device, equipment and product based on network coding, and relates to the technical field of network coding, and the method comprises the steps: carrying out the precoding of an original data package of a target window, generating a first coding package set, transmitting the first coding package set to a receiving end, the relay node carries out secondary coding on the received first coding packet set to generate innovative data packet sets, and when the number of the innovative data packet sets transmitted to the receiving end reaches a preset threshold value, the step length of the target window is adjusted according to feedback information of the receiving end, and the feedback information comprises the current decoding rate and the innovative data packet sets. The transmission reliability and effectiveness are improved by pre-coding the original data packet of the target window, secondary coding is carried out at the relay node of data transmission, the generated innovative data packet contains extra information, the decoding rate of the receiving end is improved, and the transmission of the subsequent data packet is more efficient and effective by dynamically adjusting the transmission strategy.

Systems and methods are described for providing an application-level gateway to an on-demand network code execution system. An on-demand network code execution system may allow users to submit code to be executed in a serverless environment, and may provide an interface for executing the user-submitted code on demand. The interface may require that users authenticate, provide input in a particular format, or meet other criteria when sending a request to execute the code. An application-level gateway may thus provide an interface that implements these functions, thereby allowing computing devices to interact with the code as though it were running on a server (e.g., by using HTTP). The application-level gateway may also use on-demand code execution to provide load balancing for servers that are running the user-submitted code, and seamlessly provide access to code that runs on both server-based and serverless environments.

An electronic device includes a communication processor and a memory. The communication processor may be configured to cause the electronic device to: detect at least one satellite network based on the reception of at least one system information block (SIB); generate a PLMN list including at least one PLMN; determine the service time of each of a plurality of non-terrestrial wireless communication devices included in the PLMN list based on satellite data stored on the memory; and determine the priorities of the plurality of non-terrestrial wireless communication devices based on the determined service times, wherein the satellite data includes at least one of a mobile country code (MCC), a mobile network code (MNC), a mobile network code (TAI), a cell ID, and / or information about the service type of a service provided by the satellite network.

A program, method, architecture, apparatus, system, apparatus, and computer program product including a wireless transmit / receive unit (WTRU) configured to: obtain a plurality of protocol data units (PDUs) including network encoded processing data; associating information including a first identifier of the first PDU set with a first PDU of the plurality of PDUs; associating information including a second identifier of a second PDU set with a second PDU of the plurality of PDUs; transmitting the first PDU via the first bearer based on the first identifier; and transmitting the second PDU via the second bearer based on the second identifier.

The present application provides a method and apparatus for cross-network converged transmission based on network coding and relates to the field of communication technologies. The method initially includes selecting an encoding method based on an application type and encoding original packets to obtain a plurality of to-be-transmitted packets. A network status is obtained and a scheduling scheme is determined based on the network status. Weights of links for transmitting the plurality of to-be-transmitted packets are adjusted based on the scheduling scheme. In the present application, the encoding method is selected based on the application type such that cross-network converged transmission can be completed based on network coding. This reduces latency while improving data transmission bandwidth.

The application belongs to the field of blockchain underlying architecture and application cryptography technology, and specifically discloses a Byzantine consensus method and system based on authentication network coding and adaptive propagation, which comprises the following steps: dividing all network nodes into multiple clusters, and unicasting block proposals to cluster sink nodes; cutting the block proposal into multiple source fragments and generating authentication source symbols, and generating coding packets by linear combination of the authentication source symbols; the normal nodes in the cluster accumulate linearly independent packets by rank detection, recover the authentication source symbols when the decoding matrix is full rank, and perform anti-pollution batch verification, if the verification is passed, generate a local voting message and send it to the cluster sink node; the cluster sink nodes generate cluster certificates and exchange the cluster certificates among the sink nodes, and when the cumulative node weight represented by the cluster certificate meets the preset consensus threshold, the global Byzantine consensus is reached. The application solves the problems of expensive cross-agency physical bandwidth, communication message storm and algebraic pollution attack specific to the network coding environment.

The application discloses a kind of based on graph coding's diagnosis and surgical matching check method and system, the method includes: obtaining the diagnosis data and surgical plan data of target object;Based on feature extraction algorithm, extract the diagnosis change feature and surgical step feature in the diagnosis data and the surgical plan data;Based on graph network coding algorithm, the diagnosis change feature and surgical step feature are encoded into corresponding node relationship graph;The node relationship graph is input into trained graph neural network to obtain the matching degree parameter of output diagnosis and surgical plan.It can be seen that the present application can realize accurate medical diagnosis and surgery matching evaluation based on graph structure feature association, improve the scientificity and adaptability of surgical plan selection, reduce the surgical risk and treatment deviation caused by mismatch between scheme and diagnosis.

Procedures, methods, architectures, apparatuses, systems, devices, and computer program products using wireless transmit / receive unit (WTRU) configured for receiving configuration information indicating a minimum number of network coded packet required to recover a network coding generation; receiving a network coded packet, wherein the network coded packet comprises information indicating a network coding generation; determining that a trigger condition is met based on the configuration information; and sending a status report, based on the trigger condition being met, wherein the status report comprises information indicating a number of network coded packets received.

This invention relates to network coding technology and discloses a network coding method based on maximum rank distance code. The method includes: performing network coding on transmitted data to obtain coded data; performing linear addition and multiplication on the coded data to obtain coded data packets; using a preset parity check matrix to perform error detection and location on the coded data packets to obtain an error matrix; and performing rank error correction on the coded data packets based on the error matrix to obtain the original source data. This invention also provides a network coding apparatus, device, and medium based on maximum rank distance code. This invention can reduce the amount of redundant data transmitted in the transmission network and maintain low latency and high data recovery success rate even in complex network environments.

The present invention relates to a linear network coding method based on BLS. The source node divides the file to be signed into several file blocks and represents them as a prime domain #imgabs0# k dimensional vectors, which are then augmented to become a set of linearly independent vectors; a subspace generated based on this set of vectors is signed, and a label for the subspace and a signature for each basis vector are generated. The signatures are loaded into a data packet and sent to a downstream node; after receiving the data packet, the intermediate router or the destination node verifies the signature of the data packet from the same source node; the intermediate router linearly combines all verified data packets to form a new data packet and sends it to the downstream node; if the destination node receives a predetermined number of verified data packets, it can parse the original data sent by the source node. The present invention can not only resist pollution attacks in network coding and ensure data integrity and authenticity, but also reduce user computing complexity and ensure secure and efficient data transmission.

This invention proposes a concise application scheme for multicast networks that integrates network coding, data encryption, and authentication. The scheme maintains high network coding efficiency while ensuring information security. The specific process is as follows: Unencrypted messages transmitted in the network are encrypted. When an intermediate node receives an encrypted message, it determines whether to forward it directly. If forwarded directly, the message is decrypted and re-encrypted. If the message needs to be "mixed" at the node, it is decrypted, mixed, and then forwarded. To ensure the correctness of node encryption and decryption, MAC verification is used.

Embodiments of the present application provide a method and apparatus for data transmission. The method can include: a first communication device receiving N first control information, the N first control information being used for indicating that M transport blocks are used for transmitting one or more sub-blocks of a same data block after network coding, wherein N and M are positive integers, and M is greater than or equal to N; and the first communication device receiving the M transport blocks based on the N first control information. Through the present application, not only can the network coding mode be used to meet the requirement of a service on a delay as much as possible, but also the relationship between a transport block and a data block can be established, so that it can be known which transport blocks correspond to the data block, and then the network coding and decoding based on the data block can be implemented, and the feedback information of the multiple transport blocks corresponding to the data block can be determined.

In an example, a method for delivering a multimedia data stream includes determining a frequency for generating one or more repair packets and a placement for positioning the one or more repair packets in the multimedia data stream based on a configuration parameter related to the multimedia data stream. The frequency and the placement may be determined based on a priority derived from a multimedia delivery use-case. Further, the method includes generating the one or more repair packets by network coding source packets of the multimedia data stream based on the determined frequency and the placement and transmitting the network coded multimedia data stream with the repair packets to a receiving device.

The present invention concerns a method of wireless communication between a base station and a user equipment, wherein the method comprises: transmitting, by the base station, a data radio bearer configuration; and transmitting packets according to the data radio bearer configuration between the base station and the user equipment; wherein: the data radio bearer configuration comprises a network coding configuration; and the transmitted packets are transmitted according to the network coding configuration.

The application discloses a code segment processing method and device, a storage medium and equipment. The method comprises the following steps: setting an interactive control associated with a code editing area in a network code editor; in response to a triggering operation on the interactive control, determining a target code segment to which a cursor belongs, and acquiring a starting line and an ending line of the target code segment in the network code editor; and based on the network code editor, visually highlighting and displaying the target code in the starting line to the ending line. By associating the interactive control with the code editing area in the network code editor and determining the target code segment in response to the triggering operation on the interactive control, the target code segment is visually highlighted and displayed, which significantly improves the convenience, accuracy, response speed and fault tolerance of the user in locating and identifying the code segment.

Aspects presented herein may improve latency and power consumption of communications by enabling a wireless device to apply external coding (OC) (using forward error correction (FEC)) to a transmission. In one aspect, a wireless device segments each packet data convergence protocol (PDCP) packet of a plurality of PDCP packets into a set of OC symbols, where the plurality of PDCP packets correspond to a packet data unit (PDU) set. The wireless device assembles a plurality of sets of OC symbols into an OC block. The wireless device applies FEC coding to the OC block. The wireless device outputs the OC block based on the FEC encoding. In some examples, the wireless device also adds an OC header to the OC block, where the OC header includes a symbol size, a set of source symbols, and / or a symbol index associated with FEC coding.

Methods, systems, and devices for wireless communications are described. A network node may store, in a first buffer, a first set of transport blocks (TBs) received at the network node over a wireless channel during a first time window. The network node may store, in a second buffer, a second set of TBs received at the network node over the wireless channel during a second time window and according to at least one monitoring criterion. The network node may receive a first set of one or more network coding messages over the wireless channel. The network node may decode the first set of one or more network coding messages based on the first set of TBs in the first buffer. The network node may transmit a second set of one or more network coding messages corresponding to a portion of the second set of TBs in the second buffer.