43 results about "Link rate" patented technology

The invention discloses a task scheduling and energy consumption optimization system and method based on distributed satellite calculation, and the method comprises the following steps: obtaining the floating point calculation amount and data size of each subtask, obtaining the calculation power and link rate of each satellite, and calculating the estimated execution time of the subtasks on the satellites according to an execution time formula; further obtaining the calculation power, the communication power and the corresponding duration of each satellite, and estimating the total energy consumption through an energy consumption formula; and optimizing a task allocation scheme based on the energy consumption evaluation, thereby reducing the overall energy consumption of the satellite cluster.

The invention discloses a method and a device for determining working parameters of an adaptive equalizer. The method comprises the following steps: selecting a first initial value and a first offset of an adaptive equalizer in a chip according to a current link rate and cable information; determining a first working parameter of the adaptive equalizer according to the first initial value and the first offset; receiving signal feedback information of a receiving end corresponding to the chip is acquired; when determining that the signal transmission quality is lower than a preset value according to the received signal feedback information, reselecting a second initial value and a second offset of the adaptive equalizer, and obtaining a second working parameter of the adaptive equalizer according to the second initial value and the second offset, and the signal transmission quality is not lower than the preset value when the adaptive equalizer operates according to the second working parameter. According to the method and the device, the technical problem that in the prior art, due to the fact that self-adaptive balanced insertion loss changes exist in a chip under different cable lengths and cable types, frequent manual parameter adjustment is needed, and the operation is relatively tedious is solved.

The invention relates to the technical field of network security, in particular to a national secret selective encryption method capable of keeping RTPS protocol compatibility, which comprises the following steps of: analyzing an RTPS communication structure and field information, calculating a sensitive identification code judgment field, obtaining a length and position number, combining a link rate with a CPU utilization rate to calculate a threshold value, establishing a segmented secret key and performing SM2 authentication; field binding key SM4 encryption and Hash verification, ciphertext reordering, timestamp and random number matching super-threshold reconstruction key, decryption verification splicing optimization data packet. According to the method, sensitive fields are dynamically judged by analyzing a communication structure, segmentation threshold guarantee efficiency is calculated in combination with equipment performance, safety credentials are enhanced through elliptic curve authentication, segmentation key mapping is combined with encryption and verification multi-protection, anti-attack force is improved through ciphertext sorting, keys are refreshed through a timestamp and a random number mechanism, and high safety of the whole transmission process is ensured.

The invention discloses a link detection system and method and electronic equipment, and relates to the technical field of graphic processing units, and the system comprises main equipment which is used for receiving a test instruction sent by a processor; randomly generating a plurality of test data packets; and generating and sending a sending timestamp of the first test flow to the slave device based on the first identifier of the target end device, the second identifier of the master device and the plurality of test data packets. And the slave device is used for generating response information and feeding back the response information to the master device according to the received receiving timestamp of the second test flow, the second test flow and the sending timestamp. And the master device is used for recording a return timestamp of the response information when receiving the response information, and determining whether a communication link between the master device and the slave device is abnormal or not according to at least one of an error rate, a link rate, a receiving timestamp, a sending timestamp and the return timestamp included in the response information. The problem that the stability detection effect of the exclusive link between the GPUs is poor can be solved.

The disclosure provides a link equalization training method for a mobile device, comprising: setting to start-up link; performing a first power mode change to change a link rate to a first data rate; performing link equalization training on a receiver of a second node in response to a plurality of training sequences from a first node; when link equalization training in the receiver of the second node is not completed and there is no any error event, making a decision mechanism to perform link equalization training in the receiver of the second node; when link equalization training in the receiver of the second node is not completed and there is any error event, making the decision mechanism to reset for start-up link; and when link equalization training in the receiver of the second node is completed, setting link-up in the first data rate for data transfer.

This application provides a routing communication method and apparatus. In this method, after a node in a wireless ad hoc network determines the next-hop MPR node based on the destination node of the data packet and the OLSR protocol, it also determines the target acceleration node of that next-hop MPR node. Since the minimum of the link rate between the node and the target acceleration node and the link rate from the target acceleration node to the next-hop MPR node is greater than twice the link rate from the node to the next-hop MPR node, forwarding the data packet through the target acceleration node to the next-hop MPR node can effectively improve the data transmission rate of the routing path. Furthermore, the link rate is determined based on the MCS level between nodes, and the MCS level between nodes is obtained through MCS signaling transmitted within the wireless ad hoc network. This eliminates the need to separately send control signaling for transmitting link QoS information, thereby reducing the overhead of transmitting control signaling within the wireless ad hoc network.

Disclosed are a method and apparatus for establishing a Peripheral Component Interconnect Express (PCIe) optical interconnection link, a device, a non-volatile readable storage medium, and a system. The method includes: acquiring an upstream data signal transmitted through an electrical path, and detecting whether at least one Electrical Idle Ordered Set (EIOS) exists in the upstream data signal; recording a current link rate of the PCIe optical interconnection link, and determining whether the transmission of the at least one EIOS is completed by counting the at least one EIOS; and generating a target signal sequence of a corresponding rate according to the current link rate in a case where the transmission of the at least one EIOS is completed, and transmitting the target signal sequence to an opposite end through the PCIe optical interconnection link.

The application discloses a link detection system and method and an electronic device, relates to the technical field of graphic processing units, and comprises a master device, a slave device and a processor. The master device is used for receiving a test instruction sent by the processor, randomly generating a plurality of test data packets, generating and sending a first test stream based on a first identifier of a target device, a second identifier of the master device and the plurality of test data packets, and sending a sending timestamp of the first test stream to the slave device. The slave device is used for generating response information and feeding back the response information to the master device according to a receiving timestamp of a second test stream, the second test stream and the sending timestamp. The master device is used for recording a return timestamp of the response information when the response information is received, and determining whether a communication link between the master device and the slave device is abnormal according to at least one of a bit error rate, a link rate, a receiving timestamp, a sending timestamp and a return timestamp included in the response information. The application can solve the problem of poor detection effect of the stability of the exclusive link between GPUs.

The application provides a PCIe clock gating circuit and a PCIe clock control method. The circuit comprises a link width control circuit, a link rate control circuit and a link state control circuit. The link width control circuit is configured to output a control signal for closing the clock of a non-current width related module when the current link width is less than the maximum width. The link rate control circuit is configured to output a control signal for closing the clock of a non-current rate related module. The link state control circuit is configured to output a control signal for closing the clock of a non-normal working state related module when the current link state is a non-normal working state. The non-normal working state related module comprises a related module corresponding to other link states except the current link state. The link state control circuit is further configured to output a control signal for closing the clock of a training code stream sending module, a training code stream receiving module and a link training related module when in a normal working state.

The disclosure provides a link equalization training method for a mobile device, comprising: setting to start-up link; performing a first power mode change to change a link rate to a first data rate; performing link equalization training on a receiver of a second node in response to a plurality of training sequences from a first node; when link equalization training in the receiver of the second node is not completed and there is no any error event, making a decision mechanism to perform link equalization training in the receiver of the second node; when link equalization training in the receiver of the second node is not completed and there is any error event, making the decision mechanism to reset for start-up link; and when link equalization training in the receiver of the second node is completed, setting link-up in the first data rate for data transfer.

The embodiment of the present invention discloses a method for intelligent service rate mapping and switching of a cross-domain communication network. The method includes: obtaining the current link information and target service information corresponding to the target communication service to be detected; inputting the current link type and target service information into the target rate decision tree for node decision-making to obtain the target rate information of the target communication service in the current link; the target rate decision tree is constructed based on the mapping relationship between each service information and rate information under each type of link; based on the current link state and the preset link state threshold, the current adjustment factor corresponding to the target communication service is determined; based on the current adjustment factor and the target rate information, the rate is switched to determine the target link rate corresponding to the target communication service at the next moment. Through the technical solution of the embodiment of the present invention, the target link rate corresponding to the target communication service at the next moment is accurately and conveniently determined, thereby achieving accurate rate switching.

The present disclosure relates generally to an interface between a host processor device and a peripheral device, such as a camera or sensor, and, more particularly, to improving the generation of data signals with embedded clock information to be more rate-flexible and power efficient. Improved techniques are described herein to embed a clock signal into a data signal (e.g., to minimize the number of channels needed)—while allowing for a variable link rate and avoiding the need for a phase lock loop (PLL) and / or long link training times at the receiver, which can consume large amounts of power and on-chip area. In some embodiments, a modified Manchester encoding scheme, e.g., using a fixed delay for its mid-bit transitions (and wherein the delay is independent of link rate), is used to achieve the dual aims of rate flexibility and power efficiency for an improved data signal interface with embedded clock information.

The application discloses a 5G+TSN fusion network asynchronous flow optimization scheduling method with high schedulability, comprising the following steps: S1, in the fusion network of 5G and TSN, first, the overall information of the network is collected by the central controller through the network control protocol, the information includes the channel condition and frequency resource in the 5G network, the network topology and link rate of the TSN network, and the communication demand of the flow; S2, the asynchronous flow optimization scheduling model of the 5G+TSN hybrid network is run through the central controller, the routing decision and transmission scheduling of the flow collected in the above step in the hybrid network are carried out, the scheduling result is obtained, and the consumption of the network resource is minimized while meeting the transmission demand of the hard real-time flow. The application significantly improves the schedulability of the TSN gateway, expands the application range of the asynchronous deterministic access mechanism, and realizes end-to-end flow scheduling.

The invention relates to a link rate adjustment method and device, equipment, a storage medium and a program product. The method comprises the following steps: sending a first transmission data packet to a second end at a first transmission rate; in response to the situation that the first transmission rate does not meet the transmission link requirement, a first rate control data packet is sent to a second end, and the first rate control data packet carries a rate switching request and information of a first target rate; receiving a second rate control data packet returned by the second end based on the first rate control data packet, wherein the second rate control packet carries rate switching response information and expected rate information; and in response to the expected rate being a first target rate, adjusting the rate of sending the first transmission data packet by the first end to be the first target rate based on the rate switching response information of the second rate control packet and the information of the expected rate. By adopting the method, data packet loss can be avoided.

The application provides a wireless communication codec offline verification method, comprising the following steps: S1, converting frame data of a tag response into binary code data stream to be transmitted by the tag; S2, performing Miller2 coding on the binary code s_bit of the tag frame data obtained in S1; S3, coding s_miller2_code_final generated in S2 according to an ADC sampling rate and a bit width; and S4, writing the s_adc_idata array generated in S3 into a text through a file writing function fprintf. The application saves tag response data generated according to a certain rule into a text by using Matlab, and simulates the interaction between the generated text data and the tag information, which greatly accelerates the code debug time and the board debug time, and the coding mode and the link rate data can also be quickly generated, and the code coverage and the function coverage are obviously improved.

The present application relates to the technical field of device upgrading, in particular to a wireless network baseband processing capacity upgrading method, comprising the following steps: acquiring link rate and occupation, analyzing scheduling interval to judge density, extracting path and request intensity, evaluating adaptability to screen replacement path, analyzing frequency change to extract trend path, positioning hopping, searching access position to adjust port configuration, and outputting wireless network baseband processing upgrading scheme.In the present application, by collecting uplink and downlink rate and load parameters in real time, link load is accurately judged, baseband resources are dynamically adapted, combined with difference calculation and threshold judgment, redundant units are intelligently controlled to start and stop, response and efficiency are improved, physical layer parameters are real-time calibrated when frequency changes, parameters are fine-tuned through packet error rate and synchronization rate, performance under frequency transition is enhanced, preloading mechanism is triggered in high-frequency transition scene, delay is reduced, and efficient processing capacity of 4G base station under 5G demand is realized.

This application discloses a data stream transmission method and related equipment under multi-link rate networking, belonging to the field of communication technology. This application obtains the sending end and receiving end of the data stream to be scheduled, and determines the transmission path of the data stream in the multi-link rate networking based on the sending end and the receiving end; determines the CQF period of the corresponding output port of each node based on the link rate of each node in the transmission path; and determines the transmission queue of the data stream at the corresponding output port of each node based on the transmission time of the sending end and the CQF period determined based on the link rate, and sends the data stream from the transmission queue. This solves the technical problem that traditional CQF requires the entire network to have the same period, making it difficult to achieve a balance between bandwidth and latency.

The invention relates to the technical field of equipment upgrading, in particular to a wireless network baseband processing capacity upgrading method, which comprises the following steps of: acquiring a link rate and an occupation condition, analyzing scheduling interval judgment intensity, extracting a path and request strength, evaluating adaptability and screening a replacement path, analyzing frequency change and extracting a trend path, and positioning jump. And retrieving the access position to adjust the port configuration, and outputting a wireless network baseband processing upgrading scheme. In the invention, the uplink and downlink rate and load parameters are collected in real time, the link load is accurately judged, the baseband resources are dynamically adapted, difference calculation and threshold judgment are combined, the start and stop of the redundant unit are intelligently controlled, the response and efficiency are improved, the physical layer parameters are calibrated in real time when the frequency is changed, and the parameters are finely adjusted through the packet error rate and the synchronization rate. The performance under frequency transition is enhanced, a high-frequency transition scene triggers a preloading mechanism, delay is reduced, and the efficient processing capacity of the 4G base station under the 5G requirement is achieved.

This invention provides a link-layer automatic retransmission request method for narrowband transmission environments, relating to the field of wireless communication technology. The method includes: S1 initialization; S2 the transmitting end acquires the current communication link rate information; S3 calculating the number of consecutively transmitted frames n; S4 calculating the waiting time t; S5 the transmitting end retrieves data frames from the transmission frame queue and continuously sends them to the receiving end; S6 the receiving end continuously receives data frames and constructs a response frame; S7 if the transmitting end receives a response frame before the timer expires, it parses the response frame, obtains the sequence number information of the data frames correctly received by the receiving end, removes the acknowledged data frames from the frame queue, resets the timer, returns to S2, reacquires the rate information and calculates n and t, and begins the next round of transmission; S8 repeating S2 to S7 until the transmission frame queue is empty. This method can dynamically adjust the number of transmitted frames and the waiting time according to the link rate, thereby improving transmission efficiency and reliability.

Provided in the present application are a PCIe clock gating circuit and a PCIe clock control method. The circuit comprises: a link width control circuit, a link rate control circuit and a link state control circuit, wherein the link width control circuit is used for outputting, when a current link width is less than a maximum width, a control signal for turning off a clock of a module related to a non-current link width; the link rate control circuit is used for outputting a control signal for turning off a clock of a module related to a non-current rate; the link state control circuit is used for outputting, when a current link state is an abnormal operation state, a control signal for turning off a clock of a module related to the abnormal operation state, the module related to the abnormal operation state comprising related modules corresponding to link states other than the current link state; and the link state control circuit is also used for outputting, when being in a normal operation state, a control signal for turning off clocks of a training code streaming sending module, a training code stream receiving module and a module related to link training.

The invention relates to a safety energy efficiency maximization method based on an unsupervised attention residual network. The method comprises the following steps: acquiring a transmitting signal of an integrated RIS, modeling a channel from the RIS to a legal user, and respectively calculating a signal to interference plus noise ratio and a reachable rate at the legal user and an eavesdropper; the multicast safety capacity is designed according to the minimum value of the reachable rate of the legal user and the eavesdropping link rate, the total power consumption is obtained by combining the RIS transmitting power and hardware dissipation, and the energy utilization efficiency is calculated according to the total power consumption. And with the efficiency as a target, adding a legal user rate, RIS power and CRB constraints, and constructing an optimization model. And through an unsupervised attention residual network, training by using cosine annealing LR scheduling and a preset loss function to obtain a supervised model, and finally solving the model to obtain RIS phase shift and power distribution parameters. By adopting the method, SEE maximization in a dynamic vehicle-mounted environment can be realized.

Provided in the embodiments of the present application are an air interface configuration method and a related apparatus. The method is applied to a first device, and the method comprises: acquiring instance information of a deterministic network, wherein the instance information comprises one or more of a period cycle start time, a period length, an edge shaping configuration and a link rate of the deterministic network; and generating an air interface configuration of a network device on the basis of information of a physical resource block (PRB) of the network device, and the instance information, wherein the air interface configuration comprises one or more of an uplink / downlink transmission period size, a downlink slot start time, an uplink slot end time and an uplink / downlink slot resource configuration of an air interface. By means of the embodiments of the present application, an end station configuration (such as an air interface configuration) can be performed in a communication system formed by introducing a deterministic network (such as a DIP transport network) into a wireless communication architecture (such as a 5G system).

Provided in an embodiment of the present application are an air interface configuration method and a related device, the method being applied to a first device, the method comprising: acquiring instance information of a deterministic IP transmission network, the instance information comprising one or more of a period cycle start time, a period length, an edge shaping configuration, and a link rate of the deterministic IP transmission network; and air interface configuration of the network equipment is generated according to the information of a physical resource block PRB of the network equipment and the instance information, and the air interface configuration comprises one or more of uplink and downlink transmission period size, downlink time slot starting time, uplink time slot ending time and uplink and downlink time slot resource configuration of an air interface. By adopting the embodiment of the invention, end station configuration (such as air interface configuration) can be carried out in a communication system formed after a deterministic network (such as a DIP transmission network) is introduced into a wireless communication architecture (such as a 5G system).

Provided are a communication method and a related device, the method being applied to a first device, the method comprising: acquiring an air interface configuration of an access network device, the air interface configuration comprises one or more of uplink and downlink transmission period size, downlink time slot starting time, uplink time slot ending time and uplink and downlink time slot resource configuration of the air interface; instance configuration information of the deterministic IP transmission network is generated according to the air interface configuration, and the instance configuration information comprises one or more of the period cycle starting time, the period length, the edge shaping configuration and the link rate of the deterministic IP transmission network. By adopting the method provided by the embodiment of the invention, the instance configuration information of the DIP transmission network can be better generated after the DIP transmission network is introduced into the wireless communication architecture, so that the transmission waiting time delay is reduced, and the data backlog is avoided.

Embodiments of the present disclosure relate to automatically reducing link rate to conserve power. A first network device may determine a reduced rate for a link and a time period for setting the reduced rate, and may provide a rate change request identifying the reduced rate and the time period to a second network device. The first network device may receive an acknowledgement from the second network device that approves the rate change request, and may start the time period based on receiving the acknowledgement. The first network device may set the link from an original rate to a reduced rate, and may check the fallback condition until a time period expires. The first network device may reset the link to the original rate based on the expiration of the time period or the occurrence of the fallback condition.

The invention discloses a link rate prediction method based on an MIMO-OFDM (Multiple Input Multiple Output-Orthogonal Frequency Division Multiplexing) wireless communication system, electronic equipment and a storage medium. The method comprises the following steps: performing EESM model fitting based on a data set to obtain an optimal parameter; the prediction of the weighted Shannon capacity is constructed by using PSO and LU decomposition; the rate modeling under the beamforming condition is realized by combining the SVD (Singular Value Decomposition) of the Householder transform and a constraint gradient descent algorithm; and by minimizing a mean square error and optimizing model parameters, the prediction rate is highly consistent with a real value. According to the method, aiming at the transmission characteristics in two states of closing the TxBF and opening the TxBF, the EESM model, the weighted Shannon capacity model and the SVD beamforming algorithm are combined, so that the accurate prediction of the link transmission rate is realized, and the method can be used for evaluating the link capacity of the wireless communication network and guaranteeing the network optimization and service quality.

The invention provides an optical module. The optical module includes: a circuit board; the optical detector is used for converting an optical signal into an electric signal; the transimpedance amplifier is provided with a chip mounting area for flip-chip bonding of the optical detector and a first signal bonding pad electrically connected with the circuit board; the optical detector is arranged in the chip installation area, the chip installation area comprises a second signal bonding pad electrically connected with the first signal bonding pad, and the second signal bonding pad is electrically connected with a signal electrode of the optical detector. And the second signal bonding pad is positioned on one side, which is adjacent to the first signal bonding pad, of the chip mounting area. The high-speed link of the optical module has small inductance and impedance, and therefore the bandwidth and the link rate can be improved conveniently.

This invention discloses a transceiver node identification and link rate configuration method for a plastic fiber optic multi-node bus, comprising: extracting the first threshold crossing time, pulse peak amplitude attenuation, and first echo arrival interval from training pulses to form a node response feature group, thereby improving the distinguishability of the physical response of multiple nodes; generating a node identification tag sequence through a hierarchical index matrix and unique landing points, thereby improving the node sorting stability; dividing rate groups by hierarchical intervals and determining the target link rate within a group by combining the number of error codes and the location of error code distribution, thereby reducing the constraint of low-quality nodes on the overall line rate; and suppressing node drift and misconfigured rates through confirmation pulse verification, tag rearrangement, and rate resetting after rate switching, thereby improving the identification accuracy and link transmission stability of the plastic fiber optic multi-node bus.

The invention discloses an unmanned aerial vehicle group heterogeneous multi-role cooperative communication optimization method for physical layer security, and the method comprises the following steps: building a system scene and related parameters, obtaining a system state, and setting an unmanned aerial vehicle role set; calculating a legal link rate between the unmanned aerial vehicle and the legal user and an eavesdropping rate of an eavesdropper EVE on unloading data or communication data, thereby calculating a secrecy rate of each user in each time slot and carrying out time domain averaging to obtain an average secrecy rate of each user; and constructing an optimization model which aims at maximizing the minimum average secrecy rate of the system, introducing a penalty term into a target function, performing block optimization on role variables by adopting an alternating iteration mode to perform iterative updating, and finally outputting a multi-time-slot role allocation and resource allocation result. According to the method, a multi-role cooperation mechanism is introduced, and a continuous relaxation and penalty iteration solving strategy is adopted, so that the fairness and secure communication performance of the system are improved on the premise of meeting system constraints.