131 results about "Link adaptation" patented technology

The invention provides a wireless resource scheduling method and device used in a scene in which a mobile phone is directly connected with a satellite, and relates to the technical field of satellite communication, and the method comprises the steps: constructing an electromagnetic map which represents the corresponding relation of a geographic position, a physical resource block and ground interference power in a satellite beam coverage area; link budgeting is carried out on the multiple user terminals in combination with the real-time orbit geometric parameters of the satellite and the electromagnetic map, and the signal to interference plus noise ratio of each user terminal on each physical resource block is predicted; based on the predicted signal to interference plus noise ratio, adopting a proportional fair marginal gain greedy algorithm to allocate an optimal continuous spectrum resource block for each user terminal; on the allocated spectrum resources, optimizing and reallocating the total transmitting power of the satellites by adopting a water injection algorithm; and a final spectrum-power joint scheduling scheme is generated, and subsequent link self-adaption and data transmission are guided. According to the invention, the spectrum efficiency, throughput and connection stability of the system are obviously improved.

The invention discloses an area terminal adaptive communication method and system based on link quality perception, and relates to the technical field of power area terminal communication by predicting link quality, comprising the following steps: predicting link quality according to multi-dimensional perception data to obtain link quality prediction data; determining a candidate link based on the service-link adaptation rule base, determining a target link according to the link quality prediction data of the candidate link, and performing data transmission through the target link; according to the real-time link quality data of the target link, whether switching is needed or not is judged in combination with the power grid operation state, and if switching is needed, the link priority is calculated to obtain an optimal link, and link switching is carried out; the method can adapt to a complex operation scene of a power grid, improves the link switching efficiency, improves the communication efficiency and communication reliability between the station area terminals, and solves the problem of low communication efficiency caused by poor environmental adaptability and relatively high switching time delay between a communication protocol and a module in an existing station area terminal communication technology.

The invention relates to a method for performing a link adaptation in an uplink transmission between a user equipment, UE, and a network node in a telecommunication network, the method comprising:obtaining a first value of a Modulation and Coding Scheme, MCS, for a future transmission at transmission time interval k in the uplink transmission, the first value of MCS being determined on the basis of a Signal to Interference and Noise Ratio, SINR, estimated by the network node for the future transmission at transmission time interval k; andpredicting a second value of the MCS for the future transmission at transmission time k by using a Q-learning process having as input the first value of MCS, first data indicating whether the future transmission at transmission time k is a first transmission or a retransmission, and second data indicating whether a feedback acknowledgement, ACK / NACK, of a transmission that took place at transmission time interval k−1 is equal to ACK or NACK.

The invention relates to the technical field of server hardware fault diagnosis, in particular to an intelligent fault diagnosis method and system for a server mainboard and a storage medium. The method comprises the following steps: configuring monitoring parameters in a bus link controller of a server mainboard, and setting an undisturbed sampling window as a training sequence time period and an idle symbol time period in a bus physical layer data transmission process; periodically reading a link adaptive equalization parameter, an error count value and symbol arrival time through a bus link controller register, and simultaneously collecting a temperature parameter and a voltage parameter at the current moment; and combining the link adaptive equalization parameter, the error count value, the symbol arrival time, the temperature parameter and the voltage parameter at the same sampling moment as a signal quality vector at the moment. According to the method, two data transmission-free windows of the training sequence time period and the idle symbol time period are identified and utilized, so that the monitoring operation and the service data are staggered, and the sampling operation is ensured not to interfere with normal data transmission.

The invention discloses an eddy current data compression transmission optimization method, relates to the technical field of data compression transmission, and solves the technical problems that a compression algorithm lacks scenario adaptation and data transmission lacks priority and link adaptation. Scene demand-algorithm characteristic accurate matching is achieved, compressed data overall reconstruction errors and defect area reconstruction errors are reduced, delay and compression ratio requirements of different scenes are met, data priorities are judged in a multi-dimensional mode, it is ensured that defect data acquisition resources are inclined, key information is prevented from being lost, and the method is suitable for large-scale popularization and application. A transmission protocol is optimized for a short / medium / long distance scene, the protocol adaptability and the transmission efficiency are improved, a transmission scene-link state-data priority three-dimensional linkage transmission strategy is constructed, the bandwidth occupation proportion is dynamically adjusted, core data are preferentially transmitted when links are congested, and resources are fully utilized when the links are idle.

The invention discloses a multi-node sensor communication link cooperative scheduling method and system based on star flash, and relates to the technical field of new-generation wireless communication and sensors. The method comprises the following steps: constructing a star flash sensor data reporting system; calculating a node valid data volume based on parameters such as sensor types and channel numbers; estimating transmission time and distributing time slots in combination with a star flash frame structure; transmission parameters are dynamically adjusted through a real-time link quality perception and prediction model, and a data priority and preemption mechanism is supported; issuing a scheduling strategy by using the JSON configuration file; and the nodes communicate according to configuration and realize fault self-diagnosis and self-healing. The system comprises a star flash management node, a sensor node and an embedded cooperative scheduling engine. According to the method, multi-node cooperative scheduling, link adaptive optimization and system autonomous recovery are realized, and the communication reliability, the channel utilization rate and the system robustness are remarkably improved.

The invention provides a zero-trust-based dynamic data secure transmission and processing channel construction device and method, and the method comprises the steps: S1, collecting to-be-transmitted data, and classifying the data to obtain a data classification result; s2, based on the data classification result, the user identity information and the environmental risk information, a dynamic security policy is generated, and the dynamic security policy comprises an encryption algorithm selection rule, a trust evaluation threshold and a data operation authority policy; according to the invention, the fine-grained security policy is generated and continuously adjusted by dynamically sensing the data sensitivity and the real-time trust state, so that the full-link self-adaptive security protection from transmission to processing is realized; according to the method, the security multi-party calculation is seamlessly integrated in a high-sensitivity scene, so that the end-to-end security and privacy protection level of data in a cross-domain and multi-participant environment are remarkably improved while the data mobility is guaranteed, and the problem that a traditional static security mechanism is difficult to adapt to dynamic risks is effectively solved.

The invention relates to the technical field of Internet of Things communication, in particular to a LoRa network dynamic link self-adaptive control method and system based on environment awareness, and the method comprises the steps that the system firstly presets initial communication parameters for a terminal and collects the data and link information of the terminal; based on the building and traffic data on the transmission path, an environmental perception model is constructed to quantify environmental impact factors, and a dynamic evaluation matrix is established in combination with performance indexes. Calculating the comprehensive performance index of the current link based on the matrix, and predicting the change of the signal-to-noise ratio to obtain a relative difference value; the system generates optimization suggestions of communication parameters by analyzing a performance index change trend and applying an adaptive algorithm, and predicts brought performance improvement. By balancing energy consumption and time delay cost required by performance improvement and adjustment, parameter adjustment is executed only when the income is greater than the overhead. And finally, completing the optimization of all terminals within the fixed network distribution time, and evaluating the overall performance of the network. According to the invention, the accuracy of dynamic link adaptive control of the LoRa network is improved.

The invention relates to the technical field of power transmission lines, and discloses a power transmission line state multi-dimensional sensing method and system based on multi-source data fusion, and the method comprises the steps: dividing the fault evolution into a germination period, a development period and a critical period through a fault layering judgment mechanism, enabling each stage to be matched with a differential caching strategy, and achieving the collaborative optimization of fault data retention and resource utilization. Through a full-link value quantification model, three dimensions of fault state, time decay and data type, confidence gain, link adaptation and redundancy loss correction are fused, a unified priority standard is provided for caching, routing and transmission, and the transmission efficiency of a communication window is improved. A dual-mode reconstruction strategy is adopted, fault physical mechanism deduction and space-time correlation interpolation are combined, missing data are reliably complemented through fusion judgment and conflict analysis, it is ensured that a reconstruction result conforms to a physical rule, and a complete time sequence support is provided for fault traceability.

The invention belongs to the technical field of audio quality analysis, and discloses an algorithm-based audio quality analysis method and system, and the method comprises the steps: employing a lightweight CRNN model to fuse audio-video dual-mode features through the cooperation of a multi-problem joint detection module and a self-adaptive feature fusion extraction module, and carrying out the algorithm-based audio quality analysis. The five problems of abnormal volume, noise and the like are synchronously detected in combination with a multi-task learning framework, and a bottom-layer feature network is shared to avoid parameter conflicts; meanwhile, weighted binary cross entropy loss is introduced, and the detection rate of low-probability problems such as howling and sound interruption is enhanced; compared with a traditional sub-module scheme, the design eliminates the contradiction that noise suppression excessively weakens voice, the multi-problem detection accuracy is remarkably improved, the result consistency is greatly improved, and the accurate detection requirement for concurrency of multiple problems in a conference scene is met; and full-link adaptation is realized through a dynamic parameter adjustment mechanism: the difference perception feature learning expands the normal / abnormal frame feature difference, and the sensitivity of a low signal-to-noise ratio scene is improved.

The invention provides a railway tunnel lighting control system and method based on double-link communication, and belongs to the technical field of tunnel lighting control, and the system comprises a central manager, a data concentration manager, a scene controller and an intelligent lighting node. The central manager is used for issuing a dimming instruction and storing feedback node state data; the data concentration manager is used for executing active inspection, fault diagnosis, instruction priority arbitration and link adaptive switching tasks, the data concentration manager and the scene controller perform double-link communication through a first double-link, and meanwhile, the data concentration manager and the scene controller perform double-link communication through a second double-link, so that double-link combined communication of tunnel lighting control is realized. Meanwhile, the centralized data manager actively initiates state query to the intelligent lighting nodes in the jurisdiction range according to a first preset period, node state data is obtained, and active inspection of the intelligent lighting nodes is achieved. According to the invention, the communication fault probability is reduced, and the real-time performance and reliability of railway tunnel illumination control are improved.

A method includes the following steps: sending a wake-up signal to a communication node in a low-power state to perform wireless communication-related activities. The wake-up signal instructs the communication node to perform one or more tasks. The wake-up signal includes an information portion. The information portion includes control information for the one or more tasks. In some embodiments, the one or more tasks include a communication wake-up task, a sensing wake-up task, a measurement wake-up task, a link adaptive wake-up task, or a combination thereof.

The present application relates to a LoRa gateway multi-mode adaptive switching and broken link continuation method based on a Mesh network, and belongs to the technical field of LoRa Internet of Things gateway data transmission, comprising the following steps: when it is detected that any wide area backhaul link or Mesh forwarding path between gateways is restored, a bitmap or a missing data list is confirmed, and breakpoint continuation is performed; for repeated data caused by multi-gateway repeated reception, Mesh forwarding repeated reporting between gateways, repeated transmission or retransmission after link recovery, unique data indexes are used for filtering, and the weight parameters in the comprehensive score are dynamically corrected. Compared with the existing LoRa gateway which only switches according to signal strength, online state or a single time delay threshold, the present application introduces LoRa access side link state, wide area backhaul link state, Mesh link state between gateways, business priority, power consumption state and buffer state for comprehensive decision-making, so that the probability of false switching and frequent switching can be reduced, and the link adaptation capability in a complex field environment can be improved.

This disclosure describes techniques that can be used for dynamic link adaptation in wireless telecommunications networks. Some implementations relate to determine signal to interference and noise (SINR) back off values, which can be used to determine adjustments to transmission characteristics such as transmission power for improving throughout. In some implementations, block error rates are used to determine adjustments to transmission power. In some implementations, slot-specific adjustments are determined. Reinforcement learning can be used to determine adjustments in real time or nearly real time.

The invention relates to the technical field of uplink transmission, and discloses an adaptive adjustment method for a data transmission link of a micro-nano unmanned aerial vehicle in a complex environment, which comprises the following steps: calculating a second-order statistical variance of a downlink to represent environmental fluctuation, and determining the segmentation granularity of an uplink transmission block; on the premise of keeping the total power constant, the data amplitude is reduced and the pilot frequency amplitude is improved along with the increase of the segmentation granularity, and asymmetric power distribution is established; dividing the transmission block into a plurality of independent verification micro-frames for sending; according to the method, a physical layer structure and energy distribution reconstruction are directly driven through the environmental volatility, the problems of link self-adaption failure and channel estimation bottleneck caused by feedback lag in a fast fading environment are solved, and through micro-framing spatial isolation and power zero-sum gaming, the self-adaption performance of a channel is improved. And the uplink stability and the effective throughput in a complex multipath environment are improved.

This invention proposes a downlink adaptive nonorthogonal multiple access method for satellite-ground converged networks. By integrating promising cognitive radio and nonorthogonal multiple access technologies, this invention proposes an adaptive dynamic multiple access technology based on spectrum sharing to match the uneven distribution and time-varying characteristics of service demands and available spectrum resources in ISTCN, thereby improving spectrum utilization and access density.

The invention relates to the technical field of remote supervision and control, in particular to a remote operation and maintenance system and method for water quality monitoring equipment, and the system comprises a communication link optimization module, a state perception and diagnosis module, an instruction adaptation management module, an energy consumption dynamic regulation and control module and a maintenance path planning module. According to the invention, through deep analysis of communication channels and environmental interference, link adaptive optimization is realized, stable data transmission is guaranteed, equipment state deviation and change rate are accurately sensed, error accumulation is quantized, diagnosis accuracy is improved, faults are prevented, instruction matching and issuing sequences are optimized in combination with operation laws and instruction priorities, efficient execution of instructions is guaranteed, and the method has the advantages of high efficiency and high reliability. Energy consumption distribution of equipment and a communication link is dynamically regulated and controlled, according to the demand proportion, energy efficiency is improved, the service life of the equipment is prolonged, equipment operation and instruction execution are monitored in real time, maintenance strategies and resources are dynamically adjusted, system optimization and intelligent maintenance are achieved, and smooth completion of tasks is ensured.

The invention provides a communication method, and the method comprises the steps that a first communication device obtains an environment reconstruction map of a first space, the first space is a space in a preset range of the first communication device, the environment reconstruction map is expressed through map base elements, and the map base elements comprise parameter information of the map base elements; the parameter information of the map base element comprises type information and position information of the map base element; and the first communication equipment performs communication service according to the environment reconstruction map, wherein the communication service comprises at least one of the following items: MIMO transmission, channel measurement, link adaptation, beam management, high-frequency communication, network management and data transmission. In the application, the first communication device can flexibly use the defined data format to represent the environment reconstruction map for different services, different UE capabilities and the like, and can also perform communication services according to the acquired environment reconstruction map, so that the accuracy of communication related parameters can be improved, and better transmission / scheduling parameters can be acquired.

Systems and methods provide a total cell capacity estimation process that accounts for variability of spectral efficiency (SE) within a cell and enables optimized cell adjustments. A network device obtains field data of user equipment (UE) devices for a cell and assigns, based on the field data, multiple zones within the cell. Each of the multiple zones corresponds to a different link adaptation setting for UE devices. The network device computes a total data transfer capacity in a band for each zone of the multiple zones, and estimates a current available remaining data transfer capacity for each zone of the multiple zones based on the field data and the total data transfer capacity for each zone.

The application belongs to the technical field of electronic evidence, and particularly relates to a full-link adaptive parallel data stream acceleration method and device and a storage medium, which comprises the following steps: monitoring the data stream state of a multi-protocol interface in real time; adopting an intelligent prefetch engine and an asynchronous decoupling pipeline to perform data reading scheduling; performing hardware parallel analysis on the data from different protocol interfaces in the physical layer and the link layer, extracting effective data load and address information, and reconstructing into a unified format data descriptor; storing the unified format data descriptor into a cache matrix; if the output rate of a device connected with the protocol interface is greater than the processing rate of a host, dynamically expanding the cache capacity of the cache matrix; when detecting that the host side is idle, initiating burst data transmission according to the maximum effective bandwidth of a PCIe interface connected with the host, and simultaneously adopting a write pointer lag control strategy to smoothly output the data stream; and through a DMA mechanism, directly writing the burst transmission data stream into the host memory bypassing the host CPU. The scheme realizes efficient electronic evidence.

The application relates to the technical field of agent permission security risk control, and discloses an agent minimum permission pre-checking method based on layered intention analysis and permission reachable graph deduction, which adopts a double-layer coupled multi-branch condition perception layered Transformer model, draws a task global permission baseline through a main intention coding layer, completes multi-execution branch splitting through a branch condition time series coding layer, and predicts a minimum permission set of each branch in fine granularity. The application constructs a permission reachable topology graph for single-branch permission, identifies an implicit over-authorization link through link traversal and risk quantification, and completes secondary convergence of permission by adaptively cutting redundant permission. After being checked according to a compliance baseline, dynamic on-demand authorization is realized according to a task real-time execution branch, and temporary permission is automatically recovered after the task is completed. The method can realize branch-level accurate empowerment and link-level deep risk control, effectively suppresses the risk of over-authorization and implicit over-authorization of an agent across systems, and improves the permission security and compliance of an automatic task of the agent.

The invention provides a wireless link adaptive adjustment method and device, and the method comprises the steps: understanding the feature information and input instructions of a terminal through a large language model, determining the service type and features of the terminal, and adjusting the weight of a reward function in a deep Q network. And determining an optimization target of the terminal in combination with the real-time network index, the service feature and the real-time state vector. And inputting the real-time state vector and the optimization target into a lightweight multilayer perceptron, and generating a candidate action set to realize adaptive adjustment of a wireless link. And constructing a comprehensive state vector based on the candidate action set, the real-time state vector and the service characteristics, inputting the comprehensive state vector and the adjusted reward function weight into the deep Q network, selecting a target candidate action from the deep Q network, and optimizing the wireless link performance. In addition, a channel change trend is predicted by using a long-short-term memory network, and historical similar scenes are retrieved through a vector database, so that the adaptability to an unknown channel state is enhanced. The optimized deep Q network decision meets the communication standard.

The application discloses a kind of ultraviolet light and radio frequency mixed communication link adaptive switching method, specifically includes the following steps: step 1, route auxiliary calculation sending end and the position information of receiving end, judge whether UV / RF data transmission uses cooperation mode;Step 2, when cooperation mode cannot be used in special circumstances, other ultraviolet terminal equipment in non direct view range is passed through single-hop or multi-hop mode;Step 3, when cooperation mode is used, the communication distance L UV It is determined according to the position information obtained;Step 4, when selecting ultraviolet link as data transmission link, the emission power of ultraviolet transmitting terminal array antenna is adaptively adjusted;Step 5, when ultraviolet link reaches the index requirement of communication link, distribute encrypted information;The communication distance L UV Between communication equipment is obtained.Ultraviolet link adaptive emission power adjustment and distribution key are combined with radio frequency link to increase effective communication distance, improve the resource utilization rate of link and the security of communication.

This invention discloses a method for link adaptation in retransmission systems and mobile environments. The method includes: constructing and initializing a reinforcement learning neural network; acquiring information, including current user feedback on channel conditions and HARQ process information; monitoring whether the channel environment has switched; constructing an observation state vector based on the information; inputting the observation state vector into the reinforcement learning neural network and outputting the MCS corresponding to the current HARQ process; transmitting data packets containing the MCS to the user and receiving user feedback; determining whether the current HARQ process has ended based on the feedback information; if so, calculating the retransmission throughput reward of the current HARQ process, aligning and integrating the state, action, and reward, storing it in an experience pool, and then proceeding to subsequent steps; training the reinforcement learning neural network based on gradient descent using several empirical data points. This invention solves the problem that traditional algorithms cannot adapt to actual 5G networks and complex, ever-changing environments.

The present disclosure provides a method performed by a UE for early CSI acquisition in LTM procedures. The method includes receiving a configuration for early CSI acquisition, the configuration including one or more LTM candidate cells, receiving a command for LTM cell switch to a target cell among the one or more LTM candidate cells, and starting to perform CSI- RS measurements CRI / CQI / PMI and / or RI upon receiving the command. The method enables reduced link adaptation time in the target cell by initiating CSI measurements immediately upon receiving the LTM cell switch command.

The invention provides a high-voltage-resistant photoelectric conversion module suitable for submarine optical communication and a data transmission system, and belongs to the technical field of deep sea optical communication. Aiming at the problems of performance drift, high error rate, difficulty in fault identification and poor link adaptability of a traditional photoelectric module in a deep sea environment with high pressure of 30-100MPa and temperature change of-40-80 DEG C, the invention provides a method for evaluating the health degree of a deep sea through a temperature-pressure coupling dynamic compensation technology, a distortion grading optimization algorithm, a multi-dimensional health degree evaluation model and system-level link adaptive adjustment. 10-60Gbps high-speed transmission is realized, the fault identification accuracy is greater than or equal to 98%, and the method can be widely applied to scenes such as deep-sea oil-gas exploration, a seabed observation network and cross-ocean communication relay, and has the remarkable advantages of high stability, low operation and maintenance cost and wide adaptability. Multiple scenes such as deep-sea oil-gas exploration, a seabed observation network and polar scientific investigation are covered, the transmission rate is 10-60 Gbps, different service requirements can be flexibly met, and remarkable economic and social benefits are achieved.

The application relates to the technical field of communication transmission, and discloses a remote terminal control method and system, a terminal and a storage medium, the method comprising the following steps: performing bidirectional identity authentication on a control terminal and a controlled terminal in a remote terminal control process to establish a secure link set; sending a standardized detection data packet from the control terminal to the controlled terminal and monitoring link quality feedback information returned by the controlled terminal; screening an optimal communication link at the control terminal to determine a link adaptation instruction of the control terminal; performing format encryption and packaging on a to-be-executed control instruction at the control terminal to obtain an instruction data packet; transmitting the instruction data packet to the controlled terminal through the optimal communication link at the control terminal; and performing deconstruction coding on the instruction data packet received by the controlled terminal to obtain the to-be-executed control instruction, so that the control terminal controls the controlled terminal; and the application can improve the control efficiency of the remote terminal.

The embodiment of the present application provides a kind of communication device and data transmission method, communication device includes: universal serial bus USB protocol layer, USB adaptation layer, transport layer and physical layer;USB protocol layer is used to send first data to USB adaptation layer;USB adaptation layer is used to obtain second data by carrying out physical link adaptation to first data, and second data is sent to transport layer;Wherein, first data adapts first physical link, and second data adapts second physical link;The bandwidth of first physical link is lower than the bandwidth of second physical link;Second data is sent to receiving end by second physical link after being handled by transport layer and physical layer.It can effectively reduce data transmission delay while increasing the pin bandwidth utilization of communication device by using the embodiment of the present application;Meanwhile, the transmission of data is not limited by the transmission form of physical link;In addition, compared with prior art, chip area and hardware cost can also be saved.

A base station implements a PID (Proportional Integral Differential) control system to calculate an MCS (Modulation and Coding Scheme) in such a way that the base station responds to changes in channel conditions but does so in a stable manner and does not suffer from MCS jitter due to excessive response to spurious channel quality measurements. The method may be implemented for uplink data processing as well as downlink data processing and may be implemented by a 5G gNodeB as well as an LTE eNodeB.

An electronic device receives a first data unit including a first hybrid automatic repeat request (HARQ) unit and transmits a second data unit including first HARQ-related information indicating that the first HARQ unit fails to be decoded. The electronic device receives a third data unit including a preamble. The preamble includes a first STF, a first LTF, a signal field, a second STF, and a second LTF, and the third data unit includes second HARQ-related information indicating whether the third data unit includes retransmitted data. The electronic device obtains a second HARQ unit based on determination that the second HARQ-related information indicates that the third data unit includes retransmitted data and decodes the second HARQ unit with the first HARQ unit.