857 results about "Transmission bandwidth" patented technology

According to embodiments, a UE receives, from a network device, a configuration of a sounding reference signals (SRS) resource with 8 antenna ports, a transmission comb configuration for the SRS resource, and a cyclic shift (CS) configuration for the SRS resource. The transmission comb configuration indicates a comb value K. K is one of 2, 4, or 8. The transmission comb configuration further indicates a configured comb offset (k). k is an integer between 0 and K−1. The CS configuration indicates CS positions. The UE maps each port of the 8 antenna ports to corresponding resource elements (REs) in the frequency domain and a corresponding CS. The corresponding REs are a subset of a plurality of REs and on every K-th RE with an offset based on the configured comb offset (k) within an SRS transmission bandwidth. The UE transmits SRSs using the 8 antenna ports based on the mapping.

The invention discloses a private network data security detection method based on big data, and belongs to the field of security detection, and the method comprises the steps: obtaining a real-time data packet from private network traffic, encoding the data packet through a forward error correction code technology, generating redundancy check information, and obtaining an encoded data packet; if a bit error is detected in the transmission process of the coded data packet, requesting a sending end to retransmit a damaged data packet through an automatic retransmission request mechanism to obtain a retransmitted data packet; adjusting the redundancy of a forward error correction code and a trigger threshold of an automatic retransmission request according to the adaptive error correction parameter, generating an optimized error correction scheme, and obtaining a repaired data packet; and aiming at the alarm processing instruction, automatically adjusting a network flow control strategy, limiting the transmission bandwidth of an abnormal destination, updating the sensitive data fingerprint database, and obtaining optimized protection configuration.

The invention specifically relates to the technical field of edge computing, and discloses a multi-platform concurrent transmission edge computing data acquisition method, which comprises the following steps: S1, concurrent access of multi-platform equipment: establishing a mapping relationship between equipment identity and a communication link; s2, data concurrent collection and preprocessing: obtaining a preprocessed data stream; s3, concurrent transmission priority scheduling: allocating a transmission bandwidth for each data stream; s4, edge node parallel computing: distributing the subtasks to a plurality of computing nodes; s5, cloud collaboration and global optimization: generating a global optimization strategy; s6, carrying out full-link monitoring and dynamic regulation and control; concurrent access of heterogeneous equipment is realized by generating data streams in a uniform format, multi-platform compatibility is effectively enhanced, bandwidth is dynamically allocated to the data streams according to priority weight indexes by calculating the priority weight indexes of the data streams, data transmission efficiency is improved, and the data transmission efficiency is improved by allocating sub-tasks to a plurality of computing nodes. And the resource utilization rate of the edge computing gateway is improved.

The invention provides a subway train traction energy efficiency optimization data transmission control method and system. The method comprises the following steps: acquiring numerical values of vibration parameters when a traction motor of a subway train runs, and segmenting the numerical values of the vibration parameters according to preset time granularity; calculating a comprehensive weight index of each time sequence unit based on the vibration amplitude, the frequency distribution and the phase angle parameter, and generating a dynamic code rate hierarchical allocation strategy in combination with the real-time state of the network transmission bandwidth and a control instruction reservation mechanism; and establishing a multi-dimensional parameter association model based on the numerical value of the vibration parameter, a dynamic code rate hierarchical allocation strategy, the real-time power state of each power electronic device, and the torque output instruction and energy recovery threshold feedback parameter, and dynamically adjusting a data transmission rule through the multi-dimensional parameter association model. According to the technical scheme provided by the invention, the accuracy of subway train traction energy efficiency optimization data transmission control is improved.

A device wake-up method and a communication apparatus are provided. The method includes: A first device determines wake-up information, where the wake-up information is used for waking up a second device, or is used for not waking up a second device; determines a wake-up sequence based on the wake-up information; and sends the wake-up sequence to the second device on a wake-up signal receiving occasion of the second device. A frequency domain resource occupied for transmitting a low power wake-up symbol is adjacent to the edge of the transmission bandwidth of the first device in frequency domain, so that impact of transmitting the low power wake-up symbol on spectrum efficiency of a primary communication link can be reduced, thereby helping ensure compatibility between a link for transmitting the low power wake-up symbol and the primary communication link.

The invention belongs to the field of cooperative control of a multi-agent system, and the method aims at a fully heterogeneous linear multi-agent system under a directed topological graph, takes event-triggered communication transmission as a background, and aims at realizing stable formation control on the premise of utilizing a fully distributed control structure. And the formation control problem of the fully heterogeneous multi-agent system based on the mixed event triggering mechanism is researched. According to the method, a mixed event trigger communication strategy is used, network transmission bandwidth occupation can be reduced, and data transmission energy consumption is saved; designing a local state observer and a distributed event trigger state observer to estimate the states of the followers and the leader according to the conditions that the states of the followers are unknown and communication links do not exist between the leader and part of the followers; the designed distributed formation control protocol does not depend on global information, can ensure that followers realize ideal time-varying output formation configuration in a dynamic environment, and can accurately track a motion trail formed by a plurality of leaders at the same time.

The invention relates to a task processing method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: acquiring data processing tasks from an edge processing node, and acquiring task demand information corresponding to each data processing task; acquiring node state information of each processing node in the computing power network; according to the node state information and task demand information carried by the data processing task, determining a target processing node by taking resource utilization rate maximization of each processing node in the computing power network as a target; determining a target transmission path and a target transmission protocol by taking maximization of transmission bandwidth and minimization of transmission delay as targets according to data size information and time delay requirements carried by the data processing task, and a network state and a transmission protocol of a target processing node; and transmitting the data processing task to the target processing node through the target transmission path and the target transmission protocol. By adopting the method, the task processing efficiency can be improved.

The present invention discloses a method and device for transmitting network time synchronization messages applicable to any channel environment, including: classifying the data bits of the time synchronization messages to be transmitted to obtain public information bits and secret information bits, and performing Polar coding on the data of the time synchronization messages to obtain a first coding sequence; dividing all data subcarriers within the transmission bandwidth into sub-blocks according to the number of legitimate receivers, and dividing each sub-block to obtain clusters, performing IM modulation on each cluster to determine the active subcarrier indices of each cluster; interleaving the symbol vector obtained by modulating the first coding sequence based on the total frequency-domain channel matrix characteristics of a preset channel simulation system; modulating the interleaved symbol vector onto the active subcarriers selected for each sub-block to complete OFDM-IM modulation, and sending the modulated OFDM-IM signal to each legitimate receiver. The present invention solves the problems of poor security and limited application scenarios in the transmission of network time synchronization messages.

Disclosed are a method and an apparatus for transmission or reception of an STF for a new numerology in a wireless LAN system. A method performed by a first station (STA) in a wireless LAN system according to an embodiment of the present disclosure may comprise the steps of: generating a physical layer protocol data unit (PPDU) including a non-legacy short training field (STF); and transmitting the generated PPDU to one or more second STAs. In the non-legacy STF, for a PPDU type supporting a new numerology, a specific STF sequence may be applied to each transmission bandwidth of the PPDU type.

The invention discloses a power consumption optimization method and device of a solid state disk controller, equipment and a medium, and relates to the field of computers, and the method comprises the following steps: determining an uplink bandwidth demand and a downlink bandwidth demand of a nonvolatile memory fast solid state disk controller according to a response rate of a completion queue and a target attribute of each input / output request; determining a unidirectional maximum transmission bandwidth of the communication bus according to a link rate and a link width of the communication bus, and determining a current uplink bandwidth utilization rate and a current downlink bandwidth utilization rate of the communication bus according to the unidirectional maximum transmission bandwidth, the uplink bandwidth demand and the downlink bandwidth demand; and adjusting the link rate of the communication bus according to the current uplink bandwidth utilization rate and the current downlink bandwidth utilization rate. According to the method and the device, the power consumption optimization of the nonvolatile memory fast solid state disk controller is realized.

The invention relates to an intelligent water affair remote monitoring and control system based on the Internet of Things, in particular to the field of intelligent water affair remote monitoring and control, and the system comprises the steps: firstly, pre-training a long and short-term memory network model through a cloud, and generating a lightweight edge prediction model to reduce calculation and transmission loads; the data transmission module effectively reduces the occupation of transmission bandwidth based on a dynamic quantization threshold value of a residual error and a differential coding technology, meanwhile, the high precision of the data is kept, the verification feedback module monitors the accuracy of the transmission data in real time through confidence coefficient detection, and triggers model re-calibration when the confidence coefficient is reduced, so that the long-term stability of the system is ensured, and the reliability of the system is improved. The sampling optimization module dynamically adjusts the sampling frequency according to the confidence coefficient and the residual fluctuation characteristics, balance is achieved between bandwidth occupation and reconstruction precision by using the Lyapunov optimization theory, the real-time performance and accuracy of water affair monitoring are improved, and meanwhile bandwidth consumption and energy consumption are effectively reduced.

The invention belongs to the technical field of microwaves. The invention provides a broadband frequency selective surface radome with a wide-angle harmonic suppression function. According to the embodiment of the invention, the regular hexagonal periodic arrangement mode is selected, so that the structures of the FSS units under wide-angle incidence can be ensured to have good in-band wave-transparent characteristics and harmonic band suppression characteristics. By adopting the structure of the double-layer FSS unit, the wide wave-transparent bandwidth can be realized. A transmission zero point can be introduced by loading a circular hole on the aperture type FSS unit, and the position of the transmission zero point and the bandwidth of a stop band can be adjusted by adjusting the size of the circular hole, thereby achieving a good inhibition effect in a harmonic frequency band. By designing the FSS unit form, the wave-transparent bandwidth of the frequency selective surface structure is improved, and two transmission zeros are introduced at the harmonic position, so that good isolation is achieved in the harmonic band of the wave-transparent bandwidth. By optimizing the thickness and the stacking arrangement of the core layer, the filter has good passband transmission characteristics and harmonic band suppression characteristics under a large incident angle.

The invention discloses a power Internet of Things data transmission method and device and a medium, and belongs to the field of power network networking, and the transmission method comprises the steps: collecting power data such as current, voltage and power in real time based on a sensor, and carrying out the de-noising of the data through Kalman filtering; layering packaging is carried out according to the data type, a data compression algorithm is applied to compress the data, the transmission bandwidth is reduced, the compressed data is encrypted, and integrity verification information is added; dynamically selecting a transmission channel by using a reinforcement learning algorithm according to a real-time network state; the data are packaged and sent to the cloud through the selected transmission channel, the data are received at the cloud, and the power data are stored and managed by using a time sequence database; and analyzing the received data, generating a real-time report, carrying out anomaly detection and load prediction through a random forest algorithm, and carrying out adaptive adjustment according to the real-time monitoring data. By dynamically selecting a transmission channel and a self-adaptive transmission strategy, network instability is dealt with, and timely transmission of data is ensured.

The embodiment of the invention discloses a calculation method of a self-attention operator, operator calculation equipment, a system and a chip, which are used for unloading the self-attention operator from reasoning equipment to the operator calculation equipment, reducing the data transmission quantity, reducing the requirement on the SSD transmission bandwidth and improving the reasoning real-time performance at the same time. The self-attention operator computing system comprises: a reasoning device for calculating a first increment KVcache of a first decoder in a plurality of decoders according to a first output element token, and sending the first increment KVcache to an operator computing device; the operator calculation equipment is used for executing calculation of a first self-attention operator of the first decoder according to the total amount KVcache and the first increment KVcache of the first decoder to obtain a first calculation result and sending the first calculation result to the reasoning equipment, and the reasoning equipment is used for receiving the first calculation result and sending the first calculation result to the second decoder according to the total amount KVcache of the first decoder and the first increment KVcache of the first decoder. The total amount KVcache of the first decoder is stored in the operator computing equipment in advance.

The invention discloses an electric power data acquisition method and equipment based on a logarithmic amplifier and a medium, and relates to the technical field of electric power monitoring signal processing, and the method comprises the steps: collecting an original analog current signal on an electric power circuit and an analog temperature signal of an environment where the logarithmic amplifier is located, and generating a mixed observation vector; based on the mixed observation vector, calculating an estimated value of a temperature characteristic correction parameter in real time through a pre-stored temperature-parameter mapping relation, and performing logarithmic compression on the original current digital signal sequence by using the estimated value of the temperature characteristic correction parameter to obtain a compressed voltage signal subjected to temperature compensation; and performing high-speed analog-to-digital conversion on the compressed voltage signal subjected to temperature compensation to obtain a discrete digital signal sequence, and storing the discrete digital signal sequence into a priority cache region. According to the invention, the data volume is effectively compressed by using the correlation between the signals, and the transmission bandwidth and the storage demand are reduced.

Disclosed are a method and apparatus for transmitting or receiving a short training field (STF) for new numerology in a wireless LAN system. The method performed by a first station (STA) in a wireless LAN system, according to an embodiment of the present disclosure, may comprise the steps of: generating a physical layer protocol data unit (PPDU) including a non-legacy STF; and transmitting the generated PPDU to one or more second STAs. A specific STF sequence may be applied, with respect to a PPDU type supporting new numerology, to a non-legacy STF for each transmission bandwidth of the corresponding PPDU type.

Disclosed are a method and device for transmitting or receiving a short training field (STF) for new numerology in a wireless LAN system. A method performed by a first station (STA) in a wireless LAN system, according to one embodiment of the present disclosure, may comprise the steps of: generating a physical layer protocol data unit (PPDU) including a non-legacy short training field (STF) field; and transmitting the generated PPDU to one or more second STAs. For a PPDU type supporting new numerology, a specific STF sequence may be applied, to the non-legacy STF field, for each transmission bandwidth of the PPDU type.

Disclosed are a method and device for transmitting or receiving an STF for a new numerology in a wireless LAN system. A method performed by a first station (STA) in a wireless LAN system according to an embodiment disclosed herein may comprise the steps of: generating a physical layer protocol data unit (PPDU) including a non-legacy short training field (STF); and transmitting the generated PPDU to one or more second STAs. In the non-legacy STF field, a specific STF sequence may be applied for each transmission bandwidth of a PPDU type supporting the new numerology.

The invention provides a multi-modal data processing method and device based on a large language model and reinforcement learning, and belongs to the field of computer model and video data processing. The method comprises the steps of receiving user input information in a data generation and configuration interface, determining configuration information generated by data according to the user input information, importing original multi-modal data, and dynamically determining a data generation path based on the configuration information to generate target multi-modal data; marking the original multi-modal data and evaluating the data processing quality by combining a large language model and a reinforcement learning algorithm, and performing iterative optimization on the generated target multi-modal data according to the data processing quality; the priority of each mode is calculated according to the mutual dependency relationship of the multi-mode data flow, the multi-mode data transmission bandwidth is adaptively adjusted according to the priority, the flow distribution is automatically adjusted based on the data transmission bandwidth, and the data transmission management of the multi-mode data flow is realized. According to the invention, the automation capability of multi-modal data processing is enhanced.

The invention discloses a multifunctional broadband metamaterial structure with a polarization independent characteristic and a control method. The structure has a switchable tri-state function and a complete polarization operation capability irrelevant to polarization. By introducing the guide circuit design, three different electromagnetic energy regulation and control modes of second-order filtering, broadband absorption and multi-reflection shielding are efficiently integrated in the same structure, the real broadband performance in the band is realized, and meanwhile, the higher reflection efficiency outside the band is kept. Different from a traditional method which depends on a broadband lossless reflecting layer to expand the transmission bandwidth of an absorption structure, the three arrays are considered as an integral operating system, support three-state switching operation and have real broadband and efficient behaviors.

The embodiment of the invention provides a congestion control method and device, an RDMA network card and electronic equipment, and is applied to the RDMA network card of a sending end, and the method comprises the steps: responding to the received WQE, and based on the current sending rate, sending a data packet to a receiving end through an RDMA communication link; transmission performance characterization information of the RDMA communication link in a time window is determined, the transmission performance characterization information comprises the minimum round-trip time and the maximum transmission bandwidth, and the time window is set based on the determined last minimum round-trip time; updating the current sending rate based on the transmission performance characterization information; and sending the data packet to the receiving end through the RDMA communication link based on the updated current sending rate. By applying the scheme provided by the embodiment of the invention, the packet loss rate during data transmission between equipment based on the RDMA technology can be reduced.

The invention relates to the technical field of video acquisition coding and transmission, and provides a WebRTC-based method for reducing transmission bandwidth and improving transmission stability, which comprises the following steps: S1, a video acquisition module acquires a video frame from a camera and sends the video frame to a video coding module; s2, performing AI scene detection on the video frame to obtain a picture scene of the video frame, and performing region-of-interest ROI detection on the video frame to obtain a region-of-interest ROI range of the video frame; s3, optimizing the original funnel algorithm, setting different code rates for different video frames according to different video frame scenes, and setting different code rates for different areas of the video frames according to different ROI (Region of Interest) ranges of the video frames; s4, encoding the video frame, and sending the encoded video frame to a receiving end; s5, the receiving end decodes the received compressed video data into original video frames by using a video decoder; and S6, transmitting the decoded video frame to a rendering module for video rendering and display. The transmission bandwidth is reduced, and the transmission stability is improved.

The invention provides a data transmission method and device, data transmission equipment and a computer readable storage medium. The data transmission method comprises: obtaining a single packet transmission data volume of data to be transmitted, the single packet transmission data volume being determined by negotiation between a data sending device and a data receiving device; the maximum transmission data packet number of the to-be-transmitted data is acquired, and the maximum transmission data packet number is determined based on the equipment parameters of the data receiving equipment and the single packet transmission data volume; segmenting the to-be-transmitted data according to the single packet transmission data volume and the maximum transmission data packet number to obtain a plurality of data segments of the to-be-transmitted data; and sending the plurality of data segments to the data receiving equipment. According to the invention, the transmission bandwidth utilization rate of the Bluetooth can be improved, and the data transmission rate of the Bluetooth is improved.

Provided are a communication method and a communication device, the method comprising: determining a transmission waveform of a signal, the transmission waveform being related to a threshold of a first parameter, the first parameter comprising: a modulation order and a roll-off factor, the transmission waveform is an orthogonal frequency division multiplexing QAM-DFTS-OFDM waveform of discrete Fourier transform spread spectrum of orthogonal amplitude modulation or an orthogonal frequency division multiplexing OQAM-DFTS-OFDM waveform of discrete Fourier transform spread spectrum of offset orthogonal amplitude modulation, and the roll-off factor is determined based on the transmission bandwidth and the number of symbols carried by the transmission waveform. And transmitting or acquiring the signal. In the method provided by the invention, the network equipment or the terminal equipment can determine the transmission waveform of the signal according to the set threshold value of the modulation order and the threshold value of the roll-off factor, so that the output power supporting higher power amplifiers can be obtained, and a larger signal coverage range can be obtained.

The embodiment of the invention discloses a positioning method and a related device, which are used for realizing that a first device receives at least two pieces of first frequency information from network equipment and sends at least two positioning reference signals according to the at least two pieces of first frequency information. The transmission bandwidth of the first device for sending the positioning reference signal is improved, so that the positioning precision is improved. The method comprises: a first device receiving at least two pieces of first frequency information from a network device, the at least two pieces of first frequency information comprising first frequency information 1 and first frequency information 2, the first frequency information 1 being used for the first device to send a first positioning reference signal, and the first frequency information 2 being used for the first device to send a second positioning reference signal; the first frequency information 2 is used by the first device to send a second positioning reference signal; and the first device sends at least two positioning reference signals according to the at least two pieces of first frequency information, wherein the at least two positioning reference signals comprise the first positioning reference signal and the second positioning reference signal.

A service flow adjustment method and a communication apparatus are provided. Slot adjustment information is carried in a client signal flow sent between nodes, so that times at which all nodes on a network switch slot configuration can be unified, to avoid service damage in a process of adjusting a network transmission bandwidth. The method includes: A first node receives a first client signal flow from a second node by using N slots of a first bundling group; and after first duration starting from a time at which the first node detects slot adjustment information, the first node receives the first client signal flow from the second node by using M slots of the first bundling group.

The invention provides a solid state disk energy consumption optimization method and device, electronic equipment and a storage medium, and the method comprises the steps: carrying out the throttling operation of the transmission bandwidth of a PCIe link if the first data transmission rate of the PCIe link does not meet the transmission rate requirement; performing layering operation on the cache space of the solid state disk based on the link transmission state of the throttled PCIe link to obtain a layered cache structure; determining a migratable task in each cache layer based on a data storage condition of each cache layer in the layered cache structure and a task execution condition of the solid state disk, and migrating the migratable task of each cache layer to a target cache region to obtain a cache layout after task migration; and if the second data transmission rate of the PCIe link after throttling meets the transmission rate requirement, adjusting the working mode of each component in the solid state disk based on the second data transmission rate and the cache layout. The energy consumption of the solid state disk is optimized, the read-write performance is improved, and the service life is prolonged.

The invention relates to a distribution network fault first-aid repair full-process visual tracking method and system, and the method comprises the following steps: building a multi-source data collection system, and obtaining the biological characteristic data, environmental parameters, vehicle positioning information and material RFID tag data of first-aid repair personnel in real time through intelligent terminal equipment; constructing a three-dimensional visual digital twinborn platform, and integrating a GIS (geographic information system), a BIM (building information modeling) power grid model and a real-time dynamic data layer; edge computing nodes are deployed for data preprocessing, and a time sequence compression algorithm is adopted to reduce the transmission bandwidth requirement; establishing a dynamic resource optimization model, and performing repair path planning and resource allocation based on a Markov decision process; the intelligent perception of the security situation is realized, the personnel behavior video stream is analyzed through the neural network model, and the illegal operation is pre-warned in real time.

The invention provides a video transmission method and device based on key frame semantics, electronic equipment, a storage medium and a program product, and relates to the technical field of video transmission. The method comprises the following steps: extracting semantic information of an IDR frame at a sending end by utilizing a graph-to-text model, and determining a foreground target object and position area information of the foreground target object from a common I frame; extracting prediction errors and motion vector information contained in the prediction frame; and the background semantic information of the H.26X video stream and the dynamic behavior information of the foreground target object are obtained and transmitted. According to the method, an IDR frame, a common I frame and a prediction frame are sequentially generated by using acquired video semantic information at a receiving end, and an original H.26X video is orderly recovered according to H.26X frame structure configuration characteristics, so that the requirement of effectively reducing transmission bandwidth pressure is met on the premise of ensuring basic reliability of video transmission.

The invention relates to the technical field of earthquake and acoustic exploration, and discloses a signal acquisition and transmission method, device, equipment and medium based on a main control unit, and the method comprises the steps: generating a sampling clock signal and a time counting signal, driving an analog-to-digital conversion unit to obtain a digital acquisition signal, and reading equipment state parameters; after the timestamp is added, the digital signal is stored in the first cache unit, the state data after the timestamp is added is stored in the second cache unit, the data signal cache unit is written into a first FLASH partition after being full, and the state data cache unit is written into a second FLASH partition after being full. And after data is read from the FLASH, differential signals are output through the multi-wire parallel interface, the logic processing unit and the serialization unit. According to the invention, power consumption is reduced through unified power management and optimization of clock control and a dormancy mechanism, and transmission bandwidth is improved in combination with high-speed differential output, so that both low power consumption and high efficiency are realized.