100 results about "Transmission latency" patented technology

The invention relates to the technical field of unmanned aerial vehicle data processing, and discloses an unmanned aerial vehicle data analysis method and system based on 4GMQTT communication. The system comprises a communication interface, an integrity verification module, a delay monitoring module, an analysis reconstruction module and a transmission compensation module. The communication interface module receives an unmanned aerial vehicle data flow through a 4GMQTT protocol; the integrity verification module extracts protocol header information and judges whether the integrity of the protocol header information is lower than a threshold value or not; the delay monitoring module activates the first timing window or the second timing window according to the protocol head integrity, the former obtains transmission delay and triggers the analysis and reconstruction module, the latter obtains the protocol load integrity change rate, and the transmission compensation module is triggered if the protocol load integrity change rate exceeds a threshold value. The analysis reconstruction module generates a recombination strategy according to the transmission delay and reconstructs effective data units, and the transmission compensation module generates a compensation strategy according to the change rate to repair missing data units. The system can cope with the problems of protocol head damage, delay and load integrity fluctuation in data transmission.

The invention provides a multi-terminal clock synchronization method, system and device and a medium, and relates to the technical field of wireless communication, and the method comprises the following steps: a master device sends a synchronization request packet to an ith slave device at a first sending moment; the ith slave device receives the synchronization request packet at the first receiving moment and sends a synchronization response packet to the master device at the second sending moment; the master device receives a synchronization response packet at a second receiving moment, and determines a first receiving moment and a second sending moment according to the synchronization response packet; determining a transmission delay parameter and a clock offset parameter according to the first sending moment, the second sending moment, the first receiving moment and the second receiving moment, and sending the transmission delay parameter and the clock offset parameter to the ith slave device; and the ith slave device adjusts a local timer according to the transmission delay parameter and the clock offset parameter, so that clock synchronization between the ith slave device and the master device is realized. According to the invention, high-precision clock synchronization between multiple slave devices and the master device is realized.

This invention discloses a method for optimizing the topology of a 3D on-chip network (SoC) for high-speed data acquisition systems. Addressing the problem that general-purpose 3D SoC architectures are difficult to adapt to the communication characteristics of high-speed data acquisition systems, leading to high transmission latency and redundant link resources, this method models the network topology adjustment process as a Markov decision process and employs deep reinforcement learning to achieve adaptive optimization of the topology. The method uses a general-purpose 3D SoC as the initial architecture, constructing a state representation that includes node connection features, average network latency, longest path latency, and link area; defining a pruning and regrowth action space; designing a reward function that integrates changes in average latency, longest path latency, and link area; and using a deep Q-learning network with a multilayer perceptron structure for policy training. To improve learning efficiency, an action candidate set is constructed and combined with a two-layer greedy policy to achieve fast and effective search. Through iterative learning and topology updates, a 3D SoC topology that better suits the communication load of high-speed data acquisition systems can be obtained, reducing average transmission latency and link area overhead while ensuring connectivity.

This invention discloses a low-latency materialized view method, comprising the following steps: S1, after the application server initiates a database transaction to the source database and executes data operation instructions, before the database transaction is committed, a state intent event is constructed. This relates to the field of database technology. This application uses heavy data change information as the state intent event and a lightweight commit confirmation signal as the commit state event. By separating the state intent event and the commit state event and processing them asynchronously in parallel, the update latency of the materialized view no longer depends on the entire CDC link, but only on the transmission latency of the commit confirmation signal. This reduces transmission latency, achieves lower-latency data synchronization, and alleviates the high latency problem inherent in traditional materialized view updates that rely on change data capture technology.

The invention discloses an Ethernet communication system based on MicroBlaze and a data transmission method. The system comprises a MicroBlaze processor, an Ethernet UDP (User Datagram Protocol) stack module, a cross-clock domain transmission module, an AXI-Stream FIFO (First In First Out) module and a composite bit width conversion module. The MicroBlaze drives each module through an AXI bus, intervention of a DDR controller and DMA is not needed, deviation between a processor clock and an Ethernet clock is eliminated through asynchronous FIFO, and data integrity and transmission stability are ensured; and the composite bit width conversion module adopts a five-stage pipeline processing architecture and is used for synchronously realizing splitting and merging of 32-bit and 8-bit Ethernet data, zero value filling and data alignment. The invention constructs a DMA / DDR-free architecture with less resource occupation and low transmission delay, realizes stable and reliable Ethernet transmission on an FPGA platform, and is suitable for the field of industrial control with strict real-time requirements.

The invention discloses a holographic computing task distributed distribution method and system based on multi-person multi-view interaction, and relates to the technical field of distributed computing and holographic interaction.The system comprises a main scheduling node, a plurality of computing nodes and a user terminal.The main scheduling node obtains scene graph data of a current frame and view cone parameters of the user terminal; generating a dynamic granularity task block with metadata through a dynamic sensing task block generator; obtaining a visual angle coherence cluster through a visual angle coherence clustering engine; calculating sharing benefits and full-link cost of task blocks and clusters, constructing a benefit-cost ratio objective function, and obtaining an optimal matching relationship through an optimization algorithm; according to the method, dynamic adaptation of task granularity and optimal allocation of resources are achieved, redundant rendering and transmission delay are reduced, and the fluency of multi-user holographic interaction and the resource utilization rate are improved.

This disclosure provides a method and apparatus for transmitting Physical Uplink Shared Channel (PUSCH), applicable to the field of communication technology. The method, executed by a terminal device, includes: determining a transmission configuration for multiple PUSCHs, including Configuration Grant (CG-PUSCH), to be transmitted simultaneously uplink from multiple antenna panel panels; and determining control resource pool indices associated with different PUSCHs according to configuration / scheduling information. Each control resource pool index is associated with a different Transmit / Receive Point (TRP), and each TRP corresponds to a different antenna panel panel of the terminal device. Multiple PUSCHs are transmitted simultaneously through the panels corresponding to the TRPs associated with the transmission configurations of the multiple PUSCHs. Therefore, PUSCHs can be transmitted simultaneously from the antenna panel panels of multiple terminal devices to multiple TRPs on the network side, enabling simultaneous cooperative transmission, increasing transmission reliability and throughput, and reducing transmission latency under multiple TRPs.

This application provides a multi-path data transmission method, electronic device, and storage medium. It acquires communication parameters for each path in a multi-path transmission scheme and determines the replication probability of the data packet to be transmitted based on these parameters and a preset multi-armed slot machine model. This allows for the transmission of part or all of the data in the data packet across multiple paths according to the replication probability, thus saving transmission latency. In the multi-path transmission scheme, all data in the data packet is transmitted through the path with the minimum transmission latency. In each path other than the path with the minimum transmission latency, a portion of the data in the data packet is replicated according to the replication probability and transmitted. In other words, all data in the data packet is transmitted through the path with the minimum transmission latency, while the other paths replicate the portion of the data corresponding to the replication probability. This reduces the retransmission rate, decreases transmission latency, and increases the transmission rate.

This invention belongs to the field of data transmission technology and discloses a privacy-preserving network security data transmission method, including the following steps: S1. Data privacy preprocessing: Constructing a personalized differential privacy protection mechanism to perform local privatization processing on the original data to balance data privacy protection and availability; S2. Intelligent scheduling of transmission tasks: For scenarios with multiple network nodes and multiple transmission links, establishing a scheduling model with transmission latency and energy consumption as optimization objectives, and using a quantum particle swarm optimization algorithm that integrates chaotic perturbations to solve the model; S3. Trusted verification of transmitted data: Dividing the network into several sub-regions and constructing a tree-like key management structure, and using key priority allocation and cross-region node verification mechanisms. This solution, through a three-step collaborative mechanism, constructs an end-to-end network security protection system covering the entire data lifecycle, achieving the organic unity of personalized privacy protection, collaborative optimization of transmission efficiency and energy consumption, and decentralized trusted verification.

This invention discloses a trust assessment method and system for mobile edge computing terminal nodes, relating to the fields of edge computing, network security, and trust management. The assessment method includes the following steps: the terminal node generates local data and trains a local model according to model update instructions issued by the central server and edge nodes, and uploads the local update parameters to the edge nodes; the edge nodes collect behavioral information of the terminal nodes and interact with other edge nodes to share recommendation information for the terminal nodes; the current trust and historical trust of the computing node are calculated, and direct trust is obtained by integrating the current trust and historical trust; the recommended trust of the node is calculated based on behavioral factors such as transmission latency, interaction time difference, data integrity, node reliability, communication success rate, and number of interactions, and malicious recommendations are filtered based on indicators such as recommendation timeliness, recommendation distance, and external trust of recommendations; the comprehensive trust of the computing terminal is calculated by combining the final recommended trust and direct trust.

This application discloses a scheduling method and communication device, relating to the field of media technology, which can reduce the transmission latency of service flows requiring latency assurance, such as audio and video. The method involves configuring a scheduling priority for each of a plurality of output streams transmitted through a first output port. The plurality of output streams includes at least one first output stream, which includes a Transport Layer Data Packet (TLDP) for audio and video. The TLDP has a priority of first priority, which is the highest priority among the priorities of the packets in the plurality of output streams and the second output stream. The second output stream includes a Transport Layer Management Data Packet (TLMDP). The plurality of output streams and the second output stream are scheduled according to the scheduling priority configured for each of the plurality of output streams. This application embodiment describes the process of scheduling packets.

This application provides an information transmission method, apparatus, device, and medium. The method includes: receiving a target service request related to location; performing an operation related to the target service request to obtain a requested service result; and sending the requested service result to a location service function. After RAN service-oriented architecture is implemented, this application allows direct interaction of location-related information between the Radio Distributed Unit function and a designated location service function to support uplink and downlink location processing mechanisms, thereby reducing the transmission latency of location information and further improving the overall network positioning performance.

The invention discloses a link determination method and device, equipment, a medium and a program product. According to the method, after the to-be-selected link group capable of reaching the destination end of the access request is determined, the first link group meeting the real-time transmission state target condition is screened out from the to-be-selected link group based on the real-time transmission state of the to-be-selected link group, then the second link group is obtained through filtering according to the multi-dimensional preset rule, and finally the optimal link is selected in combination with the performance information of the head node. Therefore, the optimal link with high transmission efficiency and strong stability can be selected by a multi-level screening mechanism and considering the real-time state of the link, the multi-dimensional adaptability and the node performance, indexes such as transmission delay and packet loss rate of the access request are effectively reduced, the data transmission rate can be improved, and the transmission quality of the access request is further optimized.

This invention relates to the field of satellite telemetry and remote control technology, and discloses a port task processing method for a satellite telemetry, tracking, and command (TT&C) system, comprising: Step 1, probing all available network interfaces using a port scanner and establishing a multi-path communication channel including public network, private network, and satellite link; Step 2, collecting packet loss rate, latency, bandwidth, and jitter parameters of each path in the multi-path communication channel in real time, and updating the parameters based on a preset period; Step 3, generating a comprehensive score for each path based on the packet loss rate, latency, bandwidth, and jitter parameters. This invention employs a dynamic scoring and switching technology scheme for multi-path communication channels, achieving the technical effect of automatically selecting the optimal path based on real-time network performance. Compared to existing technologies that rely on fixed paths or manually configured switching thresholds, this solves the problems of high transmission latency, high packet loss rate, and inability to adaptively adjust due to network fluctuations.

The application provides a method and device for data transmission. The method can include: configuring a terminal device with a condition-based candidate primary secondary cell (PSCell) addition or change; and performing early data transmission by a master network device to a network device to which the candidate PSCell belongs, such as sending a data packet to the network device to which the candidate PSCell belongs before the terminal device accesses the candidate PSCell, the data packet being in the form of a protocol data unit of a packet data convergence protocol; and the data packet including a master node (MN)-terminated secondary cell group bearer and / or an MN-terminated split bearer. In this way, after the terminal device accesses the candidate network device, the candidate network device can send the terminal device the transferred data, thereby reducing the latency of data transmission. Furthermore, the application can support early data transfer of the MN-terminated secondary cell group bearer and / or the MN-terminated split bearer, thereby reducing the transmission latency of data in these bearers.

This invention discloses a time synchronization method for a master-slave clock system, relating to the field of time synchronization. The method includes: acquiring clock information of slave node master clocks and master node master clocks in a PLC network; comparing the clock information of the master node master clock and slave node master clocks according to the BMC algorithm, and selecting the optimal master clock of the PLC network as the master clock of the master-slave clock system; measuring the time deviation and a first transmission delay between the master node master clock of the PLC network and the master clock of the master-slave clock system using the endpoint delay method; measuring a second transmission delay between other master clocks and slave clocks and the master node master clock of the PLC network using the endpoint delay method; adjusting the time of the master node master clock of the PLC network according to the time deviation and the first transmission delay, based on the master clock of the master-slave clock system, to synchronize with the master clock of the master-slave clock system; and compensating other master clocks and slave clocks based on the master node master clock of the PLC network and the second transmission delay, thereby achieving time synchronization of the master-slave clock system.

This invention relates to an efficient file transmission method for multi-layered networks, aiming to solve the problems of low transmission efficiency and rigid bandwidth resource allocation in existing technologies. The method includes: a source node generating a transmission task based on a transmission request and calculating a tree-shaped transmission path; establishing transmission channels level by level along the path and assigning weights to each channel, dynamically allocating bandwidth based on these weights; splitting the file into fragments and sending them through multi-level transmission channels, with intermediate nodes performing parallel disk storage and forwarding of the fragments to the next node; and closing the channel after transmission is complete. This invention reduces transmission latency through a direct file fragment forwarding mechanism, combines weight-based dynamic bandwidth allocation to ensure high-priority tasks receive more resources, and supports resuming transmission from interrupted nodes, significantly improving file transmission efficiency and resource utilization in multi-layered networks.

Provided are a data transmission method and a communication device, the method comprising: sending first information, the first information comprising information for indicating a first resource, the first resource being used for bearing second information; second information is sent on the first resource, the second information comprises scheduling information of the first data and first part scheduling information of the first data and the second data, the first part scheduling information comprises information used for indicating a second resource, the second resource is used for bearing the second data, and the first data and the second data are data of different data types; and sending the second data on the second resource. The data transmission efficiency can be improved, and the transmission delay is reduced.

This invention relates to the field of network routing optimization technology, specifically to a network path optimization method, apparatus, electronic device, and storage medium. In this invention, by synchronously monitoring bit rate and packet rate load, and using the higher of their utilization rates as the criterion for link congestion judgment, the limitations of traditional single-indicator evaluation are effectively overcome, enabling cost calculation to more comprehensively and accurately reflect real-time link congestion risk. Through a cost coefficient mapping mechanism, and combined with a baseline link cost to determine dynamic link costs, real-time and accurate input is provided to the path optimization algorithm, resulting in significant optimization of the overall network in terms of throughput and transmission latency. This is particularly suitable for high-reliability industrial scenarios sensitive to jitter.

The invention discloses a cross-data center RDMA network congestion control method and device based on in-band telemetering, and belongs to the technical field of network transmission control. The method comprises the following steps: sending a first cross-data center flow to an upstream DCI switch at an initial rate; according to a Switch-INT message returned by an upstream DCI switch, a first fair rate is calculated, a second cross-data center flow is sent to the upstream DCI switch at the first fair rate, an ACK message of a downstream data center responding to the first cross-data center flow is obtained, and the ACK message comprises a suggested rate; and generating a final rate in combination with the first fair rate and the suggested rate, and sending a third cross-data center flow to an upstream DCI switch at the final rate. According to the method, the network sensing capability of the cross-data center flow can be improved, the fairness of the flow in the data center and the cross-data center flow is improved, and the transmission delay of the datagram is optimized.

This application provides a key-value cache management method, system, electronic device, and storage medium, applied to a large language model inference system. The key-value cache is distributed in a multi-level heterogeneous storage system, including near-end storage media and far-end storage media. The method includes: periodically collecting target indicators, the target indicators including at least one of the following: a first indicator representing bus transmission latency, a second indicator representing the proportion of far-end accesses, and a third indicator representing the overhead of direct memory access mapping; calculating a congestion index based on the target indicators; determining a target scheduling strategy for the key-value cache when optimization conditions are met; the optimization conditions include: the congestion index is greater than a first threshold, and / or, any target indicator is greater than a corresponding sub-indicator threshold; and executing the target operation corresponding to the target scheduling strategy. This application can improve the overall performance of the system and ensure the efficiency and stability of model inference.

The present disclosure relates to an uplink logical channel selection method, an uplink resource allocation method, and a terminal. In at least one embodiment of the present disclosure, configuration information sent by a network device is acquired, wherein the configuration information comprises a semi-static resource used for sending first data; and then an uplink logical channel satisfying a constraint condition is selected, wherein the constraint condition can take into account a latency requirement and / or a synchronous transmission requirement, so that the selected at least one uplink logical channel can use the semi-static resource used for sending the first data to transmit latency-sensitive data and / or data requiring synchronous transmission. Therefore, synchronous transmission of high-priority service data can be ensured while satisfying the transmission latency requirement of latency-sensitive data.

This invention relates to the field of data interaction, specifically to a cross-network data security interaction method and system, comprising: obtaining the sensitivity level of a field to be accessed in the directory information corresponding to a data access request; determining the permission level of the field to be accessed; if the permission level is greater than the sensitivity level, obtaining the utility weight and risk weight of the field to be accessed; if the utility weight is greater than or equal to the risk weight, determining that the field to be accessed is an open field; wherein, the encryption level of the open field is less than a preset level threshold, the open field is temporarily encrypted to obtain encrypted access data, and the encrypted access data is sent to the sending end. This invention, by determining that a field is an open field when the utility weight is greater than or equal to the risk weight, and by only temporarily or lightly encrypting data marked as open fields, rather than uniformly using high-strength encryption, significantly reduces the computational overhead and transmission latency of encryption and decryption.

The embodiment of the invention provides a data processing method and device, electronic equipment and a storage medium. The method comprises the following steps: receiving a data packet to be forwarded; determining whether the hardware acceleration module can perform acceleration forwarding processing on the data packet; in response to the fact that the hardware acceleration module can perform acceleration forwarding processing on the data packet, performing hardware acceleration forwarding processing on the data packet based on the hardware acceleration module; in response to the fact that the hardware acceleration module fails to perform hardware acceleration forwarding processing on the data packet, generating an identification message of the data packet, the identification message indicating that the data packet cannot perform hardware acceleration forwarding processing; and sending the data packet to a software acceleration module based on the identification message, and performing software acceleration forwarding processing on the data packet based on the software acceleration module. By means of the method, it is ensured that the data packets supporting hardware acceleration and software acceleration can be subjected to acceleration forwarding processing, and therefore the transmission time delay of the data packets when the terminal equipment sends the data packets to the network equipment is reduced.

The invention belongs to the field of PCIe exchange chips, and relates to a PCIe message aggregation exchange method and device, and the device comprises a PCIe inlet port, an inlet aggregation module, a crossbar switch, an outlet deaggregation module, and a PCIe outlet port. The entrance aggregation module is used for screening and matching the plurality of received TLPs according to a preset aggregation condition, and judging whether an aggregation requirement is met or not; the crossbar switch is used for receiving the CTLP or the independent TLP sent by the inlet aggregation module, and forwarding the CTLP or the independent TLP to the corresponding outlet deaggregation module according to a destination port of a message; and the outlet deaggregation module is used for receiving the message forwarded by the crossbar switch and judging whether the message is a CTLP or an independent TLP. The bandwidth utilization rate is greatly improved, the transmission delay is remarkably reduced, the compatibility is excellent, the implementation cost is low, the reliability is high, and the universality is high.

Method for configuring the TAS protocol of a TSN network and estimating the worst-case end-to-end latencies of transmitted data streams and associated devices. The present invention relates to a method for estimating the worst-case end-to-end transmission latency of frames in a TSN communication network operating according to a TAS protocol, the method comprising: - for each data stream, the calculation of the worst-case end-to-end transmission latency value that a frame of the data stream may experience, the calculation step comprising, for each frame of the data stream and each output port of a node or switch through which a data stream may pass, the operations for estimating the worst-case disturbance for the transmission of the frame on the considered output port from a plurality of contributions.and - a step estimating the worst-case end-to-end transmission latency of a TSN network from the contributions for each data stream. Figure for the abbreviation: Figure 1,

This invention belongs to the interdisciplinary field of federated learning and privacy protection technology, and discloses a federated learning method and system for the heterogeneity of edge devices in power systems. By constructing dynamic dual-cooperative subsets—a demand-cooperative subset and a support-cooperative subset—a transmission efficiency model jointly optimized by communication and computation is designed to achieve efficient complementary collaboration of gradients among edge devices and adaptive resource allocation. Through innovative design of a time-varying learning rate compensation function and a two-stage aggregation strategy, fair participation of heterogeneous devices and efficient fusion of Non-IID data are achieved. This invention breaks down barriers of device capability differences through a dynamic gradient complementarity mechanism and eliminates the impact of transmission latency through the construction of communication-aware dynamic cooperative subsets, ultimately realizing a highly robust, low-latency, and privacy-protected distributed model training paradigm, providing key technical support for the intelligent deployment of power system edges.

This disclosure provides a channel transmission method, apparatus, and storage medium. The method includes: receiving resource set indication information sent by a base station; wherein the resource set indication information is used to indicate the resource set of a PUCCH; in response to determining that a PUCCH needs to be transmitted on multiple time units, and the multiple time units correspond to at least two time unit types, determining at least one first time unit for transmitting the PUCCH among the multiple time units; determining the resources occupied when transmitting the PUCCH on each first time unit based on the resource set and the time unit type of the first time unit; and transmitting the PUCCH to the base station on the resources of each first time unit. This disclosure improves the reliability of PUCCH transmission, reduces the scheduling complexity of base station scheduling of PUCCH transmission, effectively reduces transmission latency, and improves the reliability of full-duplex communication.

An embodiment provides a cross-domain transmission method and an electronic device. The cross-domain transmission method applied to a network node in a DetNet domain, comprises, if the network node is an egress node in a last DetNet domain that a DetNet-flow data packet passes through, determining an actual transmission latency Δt′n of the DetNet-flow data packet in the last DetNet domain; based on the Δt′n and actual transmission latencies of the DetNet-flow data packet when passing through other DetNet domains, determining a to-be-compensated time tc; based on the tc and a tReady, determining a corresponding target scheduling cycle, and placing the DetNet-flow data packet into a periodic scheduling queue corresponding to the target scheduling cycle for scheduling and transmission; wherein the tReady refers to a time point that the present node completes processing on the DetNet-flow data packet based on a set data packet processing manner.

In a communication processing method, user equipment (UE) sends a timing advance (TA) command. The TA command is configured to trigger a network side to update a timing parameter associated with a transmission delay between a base station and the UE. A base station receives the TA command; and triggers, based on the TA command, to update a timing parameter associated with a transmission delay between the base station and the UE.