33 results about "Packet data transmission" patented technology

The invention discloses a self-adaptive packet data transmission system and method based on Beidou short messages, the system is composed of eight core modules such as a serial port communication module, a protocol conversion module and a configuration module, multi-link communication is established through an RS232 serial port and a Beidou director, and Baud rate self-adaptive adjustment and multi-serial port parallel processing are supported. The protocol conversion module adopts a finite-state machine to analyze a BDS-3 protocol, data fragmentation and recombination are achieved in combination with a sliding window algorithm, and the compression rate reaches 3: 1. The method comprises the following seven stages of flows: evaluating channel quality by detecting a message, and dynamically switching a BDS-3 anti-interference mode; implementing flow control by adopting a token bucket algorithm, and dividing three levels of QoS guarantee emergency instructions; and terminal health management is realized through a heartbeat detection and diagnosis instruction set. According to the method, instruction execution is delayed by 1.2 seconds in emergency communication, the bit error rate is controlled to be 0.0005%, the transmission efficiency is improved by 40% compared with a traditional scheme, and the method can be widely applied to the fields of Internet of Things, intelligent transportation and the like.

The invention provides a display control method and circuit, electronic equipment and a computer readable medium, and relates to the technical field of digital image processing. The method comprises the following steps: storing to-be-converted data into a first storage unit, and converting the to-be-converted data into first grouped data and second grouped data in the first storage unit; the storage signal controls the grouped data to be stored in the second storage unit; the transmission signal controls packet data to be transmitted to the primary circuit; the storage signal comprises a first storage sub-signal and a second storage sub-signal; the transmission signal comprises a first transmission sub-signal and a second transmission sub-signal; when the first storage sub-signal ends, the second storage sub-signal is triggered by delaying a preset time period; the triggering time points of the first storage sub-signal and the first transmission sub-signal are consistent; the triggering time points of the second storage sub-signal and the second transmission sub-signal are consistent. By optimizing the time sequence configuration of the control signal, the data flipping and waiting time is reduced, the invalid working time can be effectively reduced, and the chip power consumption is reduced.

The embodiment of the application provides a method for controlling transmission and a related device, the method comprises the following steps: when a first device is in a non-radio resource control (RRC) connected state, a first network device is sent first information or second information, the first information indicates that small packet data transmission (SDT) is requested to be stopped, the second information indicates that a gap configuration for SDT is requested, or the second information indicates that SDT is requested to be suspended. The embodiment of the application can be applied to the scenario that the first device may not continue SDT, and can avoid the case that the first network device continues to schedule resources for SDT when the first device no longer continues to listen to SDT, thereby saving air interface resources.

The invention discloses a packet data transmission system and method oriented to a GPGPU cluster, and relates to the technical field of data transmission. For small packet data transmission of a GPGPU cluster, a loading storage module combines identification information of a target GPGPU with memory access address information and memory access data information into a transmission instruction, the transmission instruction is sent to a data compression protocol module through a crossbar, all memory access data in a memory space of the target GPGPU are integrated and packaged through the data compression protocol module, a small packet data set is formed, and the small packet data set is stored in a storage module. The method comprises the following steps: a GPGPU node sends a packet data to a PCIe transmission adaptation optimization module, the PCIe transmission adaptation optimization module gathers the packet data to form a data transmission entry, constructs a transaction layer data packet TLP conforming to PCIe according to the data transmission entry, and sends the packaged data packet to a corresponding target GPGPU node, a PCIe receiving decoding splitting module of the target GPGPU node decodes to obtain data transmission entry information, and the target GPGPU node sends the data transmission entry information to the PCIe transmission adaptation optimization module. And executing a specific memory access operation according to the data transmission entry information.

The invention provides an Ethernet message sending method, and relates to the technical field of communication, and the method comprises the steps: obtaining a locally stored industrial Ethernet connection table entry of a first device corresponding to a second device, the industrial Ethernet connection table item of the second equipment comprises connection state information of the second equipment, an overtime detection timer and process data message content, and the connection state information of the second equipment is used for representing an industrial Ethernet connection state between the second equipment and the second wireless equipment; if the timeout detection timer is triggered, determining that the timeout detection timer does not receive a next process data message from the second equipment within a preset timeout time corresponding to the timeout detection timer; if the second equipment is in the online connection state, constructing a new proxy process data message according to the content of the process data message; and sending the proxy process data message to the first equipment. According to the invention, the time delay of wireless transmission in an industrial scene is reduced, and the working stability of each device in the industrial scene is improved.

The invention relates to the technical field of wireless communication, in particular to a data transmission method and device, electronic equipment and a computer program product. The method comprises: sending a first message, the first message comprising first passive Internet of Things signaling response information, and the first passive Internet of Things signaling response information being transmitted based on packet data related resources. According to the invention, the intermediate device uses the packet data transmission under the passive Internet of Things architecture, so that the intermediate device can be always in the radio resource control inactive state and transmit the passive Internet of Things related data, thereby reducing the time delay caused by the radio resource control state conversion, and reducing the signaling overhead and power consumption.

The invention discloses a transmission method of an Esp32 serial port communication system, which is applied to the technical field of communication, the J1939 communication technology of a Can bus is improved, any one value of a PGN number can be selected from 0-65565, a client defines the function of the PGN number, each time an ESP32 unvarnished transmission module is powered on, and a plurality of PGN numbers of a user form only need to be transmitted respectively for the first time, so that the PGN numbers can be transmitted to the client, and the PGN numbers can be transmitted to the client. The ESP32 module memorizes the PGN number at the first time, data can be successfully transmitted in a transparent manner at the second time, and memory is emptied in case of power failure; by adopting the method disclosed by the invention, intelligent memory can be quickly realized, the master machine and the slave machine completely upload and download data in a form form, unvarnished transmission is completely realized, automatic splicing is realized during multi-packet data transmission, and after complete data unvarnished transmission is successful, a data explanation right is automatically handed over to an upper-layer user interface, so that a user does not need to care about an internal implementation process.

Various embodiments are described herein for systems and methods that can be used to determine a destination location in a network fabric. In one example embodiment, the method comprises receiving an application server attribute at a fabric controller from a source port, generating at the fabric controller a destination location based on the application server attribute and mapping information stored on the fabric controller, and transmitting the destination location to the source port, where the source port transmits packetized data to a destination location based on the destination location.

The application provides a display control method, circuit, electronic equipment and computer readable medium, and relates to the technical field of digital image processing. The method comprises the following steps: storing to-be-converted data in a first storage unit, and converting the to-be-converted data into first grouping data and second grouping data in the first storage unit; storing signal controls the grouping data to be stored in a second storage unit; transmission signal controls the grouping data to be transmitted to a first-level circuit; the storage signal comprises a first storage sub-signal and a second storage sub-signal; the transmission signal comprises a first transmission sub-signal and a second transmission sub-signal; the second storage sub-signal is triggered after a preset time period is delayed when the first storage sub-signal ends; the trigger time points of the first storage sub-signal and the first transmission sub-signal are consistent; and the trigger time points of the second storage sub-signal and the second transmission sub-signal are consistent. Through optimization of the timing configuration of the control signal, the data turnover and waiting time are reduced, the invalid working time can be effectively reduced, and the chip power consumption is reduced.

A communication device according to the present disclosure comprises a control unit. The control unit performs control to transmit first packet data to a terminal device. The control unit requests the first communication device to transmit second packet data to the terminal device. The control unit notifies the first communication device regarding at least one of first information relating to the second packet data and second information relating to transmission of the second packet data.

The present disclosure relates to a latency test method and device based on underlying communication and electronic equipment. A first time when a data packet starts to be written into a first tester is recorded, and the first time is written into the corresponding data packet. The first tester sends the data packet to a second tester based on a data distribution service. The second tester receives the data packet based on the data distribution service and immediately returns the received data packet to the first tester through the data distribution service. The first tester receives the returned data packet based on the data distribution service, records a timestamp when the data packet is received, obtains a second time, and obtains the first time according to the data packet. According to the first time and the second time, the communication latency of the data packet is calculated. The present disclosure can record the timestamp only through the first tester, avoid the time difference between the testers, improve the accuracy of the test results, and be suitable for continuous multi-packet data transmission, which conforms to the actual communication situation.

This invention provides a method, system, device, and medium for small packet data transmission for large-scale terminals. Multiple PDU sessions exist between a first forwarding functional entity and a second forwarding functional entity. The method includes the following steps: the first forwarding functional entity obtains from the PDU sessions the number of data packets with a length less than a first preset threshold within a unit time; the first forwarding functional entity determines whether the number of data packets is greater than or equal to a second preset threshold; if so, the first forwarding functional entity aggregates the data packets and sends them to the second forwarding functional entity. This application can effectively improve the forwarding efficiency of small packet data and avoid adverse effects on the performance of the forwarding functional entity caused by forwarding a large amount of small packet data.

The invention discloses a traffic control method for vehicle-mounted network communication, a vehicle and a storage medium. The traffic control method for vehicle-mounted network communication is applied to a sending end, and comprises the following steps: acquiring a first sending period; sending the first data message according to the first sending period; in response to receiving a confirmation message corresponding to the first data message, according to the confirmation message, determining that the first data message is successfully sent and switching the first sending period to a second sending period, the confirmation message carrying indication information, and the indication information being used for indicating an adjustment mode of the second sending period; and sending the first data message according to the second sending period, wherein the message sending priority of the first data message is lower than that of the second data message, and the second data message is sent according to a fixed period. According to the invention, the technical problem of how to dynamically deploy the sending flow of the sending end to ensure the stability of message data transmission in vehicle-mounted network communication is solved.

The invention discloses a sonde energy-saving method based on a superposition coding technology, and belongs to the field of wireless communication. In order to solve the problem that energy consumption is too high due to the fact that a wireless communication module is frequently started by a traditional sonde, superposition coding transmission of meteorological data is achieved through a Hadamard orthogonal matrix. The method specifically comprises the steps that after meteorological data packets collected at multiple adjacent moments are subjected to constellation modulation, Hadamard matrix row vectors are distributed for signal expansion; superposing the extended signals into a single transmitting signal, and completing multi-packet data transmission through single communication; and the ground station demodulates and recovers each data packet by using the orthogonality of the row vector of the Hadamard matrix. A dynamic adjustment strategy is innovatively introduced, the number of superposed packets is optimized in real time according to the bit error rate feedback of a ground station, and energy is saved to the maximum on the premise that the communication quality is guaranteed. According to the method, the communication energy consumption is reduced, the endurance of the lithium battery is effectively prolonged, the method is suitable for an aerial sonde system released by an unmanned aerial vehicle, and the meteorological data acquisition efficiency is remarkably improved.

This invention proposes a method and system for FPGA hardware offloading of the TCP / IP protocol stack that supports multiple application loads. The invention optimizes the TCP / IP hardware protocol stack implemented on the FPGA by performing packet splitting in the network data receiving hardware logic. It determines the correspondence between the currently received network packets and the application loads based on the information in the TCP and IP headers, and by adding out-of-band signals and cross-connect buses to the packet data transmission path, the packet data is split to the correct application load.

A data transmission method, apparatus, device, and storage medium are disclosed, relating to the field of communication technology. The method includes: a terminal device transmitting first uplink data and first uplink control information on a first channel, wherein the first channel is either a data channel or a control channel (510). By multiplexing the first uplink data and the first uplink control information into the same channel for transmission, which can be either a data channel or a control channel, the reliability and system efficiency of small packet data transmission are improved.

The embodiment of the invention discloses a data transmission method, a data transmission device and a storage medium, which are applied to the technical field of computers, and are used for reconstructing and designing a data transmission architecture of packet data on the premise of not changing hardware design, so that the data transmission architecture meets the red-black isolation idea of isolation of a computing unit, an isolation unit and a communication unit, and the data transmission efficiency is improved. It is enabled to prove that the packet data transmission serial flow through the isolation unit from the system architecture. According to the embodiment of the invention, the REE module and the TEE module are different in authority, for example, the REE module can only access the non-secure memory, and the TEE module can access the non-secure memory and the secure memory. Therefore, the program in the REE module cannot directly access the resources in the TEE module, which is strictly limited, for example, the program in the TEE module can only be accessed through a CA cross-mode, and the TEE module completes the processing of a security task, so that the chip-level hardware isolation is realized.

The application discloses a resource management method, system and related equipment, and relates to the technical field of communication. The method is applied to a user equipment (UE), and comprises the following steps: the UE receives a configuration parameter sent by a base station, the configuration parameter being used for configuring a timer of the UE; then the UE initiates a small packet data transmission (SDT) session, starts the timer, and the timer is used for controlling the state of the SDT session; and when the timer expires, the UE releases resources occupied by the SDT session. The method can reduce resource waste.

An apparatus for data packet processing can include a plurality of microcontrollers configured to perform dedicated layer-two circuit control functions. The plurality of microcontrollers can be configured to concurrently retrieve data from a set of common logical channels. The dedicated layer-two circuit control functions can include logical channel prioritization. The apparatus can also include a data processing layer-two circuit configured to perform data processing on the set of common logical channels based on commands received from the plurality of microcontrollers. The plurality of microcontrollers can be configured to receive uplink grants from a plurality of component carriers, to perform scheduling of the data based on the uplink grants, and to instruct the data processing layer-two circuit to retrieve the data responsive to the uplink grants.

The invention discloses a data transmission method and a communication device, which can be applied to the field of communication, in particular to the field of satellite communication. Specifically, a network device keeping RRC connection with a terminal device last time indicates a PUSCH resource capable of being used for transmitting packet data to the terminal device, so that the terminal device in an RRC idle state or an inactive state can send an Msg 3 carrying the packet data through the PUSCH resource on the premise of not transmitting an Msg 1 and an Msg 2. In this way, time delay and signaling overhead required by small packet data transmission can be saved.

The invention relates to an intelligent card data fast processing framework and method based on a COS system, the intelligent card data fast processing framework comprises a communication bus controller, a comprehensive controller, an RAM memory, a FLASH and a processor core, the comprehensive controller is connected with the RAM memory and the processor core through internal interfaces, the processor core is connected with the RAM memory and the FLASH, and the processor core is connected with the RAM memory and the FLASH. And the communication bus controller is respectively connected with the RAM and the processor core. Wherein the comprehensive controller determines the packet length of one-time DMA data transmission between the host service system and the intelligent card through the packet length training and negotiation module, so that the intelligent card can exert the optimal operation performance of a processor under the condition of performing a large amount of operation; and a special data transceiving FIFO and a large packet data transmission special path are designed, so that the data transmission time delay between the host service system and the intelligent card processor is reduced, and the data processing efficiency of the intelligent card is improved.

Provided is a downlink control information transmitting and receiving method which can maximize the use of limited radio resources by effectively forming an uplink signaling message to be transmitted from a base station to a terminal and transmitting the formed uplink signaling message with a minimum amount of radio resources occupied. The method for transmitting downlink data generation indication information for a base station to inform a terminal of packet data transmission in a packet-based cellular system, includes the steps of: a) generating the downlink data generation indication information; b) recording radio resource allocation information in downlink scheduling information for transmitting the downlink data generation indication information, and allocating information for the downlink data generation indication information to downlink-shared radio resources; and c) transmitting the downlink scheduling information and the information for the downlink data generation indication information according to a transmission cycle.

A data transmission method, apparatus, device, and storage medium are disclosed, relating to the field of communication technology. The method includes: a terminal device transmitting uplink data on a first channel, the first channel supporting the carrying of control information (510). Transmitting uplink data in a first channel supporting the carrying of control information, such as using an uplink control channel, helps improve the reliability and system efficiency of small packet data transmission.

An embodiment of the present application provides a data transmission method, which is applied to a terminal. The terminal is in a non-connected state. The method includes: the terminal obtains a first data packet, and the first data packet is a small packet of data; the terminal and a network device perform a small packet data transmission process; the small packet data transmission process includes the terminal sending a random access preamble, the first data packet, and a radio resource control (RRC) request message to the network device, and the terminal receiving an RRC response message sent by the network device; during the small packet data transmission process, the terminal obtains a second data packet; if the second data packet is a small packet of data, the terminal sends a first scheduling request (SR) to the network device, and the first SR is used to request scheduling resources; the terminal receives first transmission resources scheduled by the network device in response to the first SR; the terminal uses the first transmission resources to send the second data packet to the network device. By adopting the embodiment of the present application, the transmission delay of the second data packet can be reduced without affecting the transmission of the first data packet.

Provided is a downlink control information transmitting and receiving method which can maximize the use of limited radio resources by effectively forming an uplink signaling message to be transmitted from a base station to a terminal and transmitting the formed uplink signaling message with a minimum amount of radio resources occupied. The method for transmitting downlink data generation indication information for a base station to inform a terminal of packet data transmission in a packet-based cellular system, includes the steps of: a) generating the downlink data generation indication information; b) recording radio resource allocation information in downlink scheduling information for transmitting the downlink data generation indication information, and allocating information for the downlink data generation indication information to downlink-shared radio resources; and c) transmitting the downlink scheduling information and the information for the downlink data generation indication information according to a transmission cycle.

Provided in an embodiment of the present application are a communication method and a related device, the method being applied to a terminal in a non-radio resource control (RRC) connection state, comprising: when a first preset condition is satisfied, executing an RRC connection recovery process for updating an RNAU based on a notification area of a radio access network; the first preset condition comprises that the second timer is overtime and the first timer is not operated; or the first preset condition comprises that the terminal receives a system information block SIB1 of the service cell, the service cell does not belong to the configured notification area based on the wireless access network, and the first timer does not run; the first timer is started when the terminal initiates an RRC connection recovery process for packet data transmission (SDT), and the second timer is started when the terminal receives an RRC release message including the duration of the second timer. According to the method and the device, the RNAU can be prevented from being triggered in the SDT process, so that transmission of packet data is prevented from being influenced, and unnecessary power consumption and signaling overhead are avoided.

The present invention discloses a small packet transmission method, device, and storage medium, including: a base station allocating resources for small packet transmission to a terminal; the base station indicating the resources to the terminal; the terminal determining the resources allocated by the base station for small packet transmission; and the terminal transmitting the small packet using the resources. Using the present invention, the terminal selects appropriate air interface resources to complete small packet data transmission, while the base station implements the small packet transmission function and optimizes the air interface resources through reasonable configuration.

An embodiment of the present application provides a method and apparatus for configuring a transmission strategy, a network device, and a terminal device. The method includes: a base station receives first configuration information sent by a core network, and the first configuration information is used to determine a transmission strategy for small packet data; based on the first configuration information, the base station sends first indication information to the terminal device, wherein the first indication information is used to indicate whether to execute a small packet data transmission process.

The present invention relates to the field of wireless communication technology, and discloses a short packet data transmission method and system based on a hybrid sparse vector code, which is applied to a transmitting end. The method comprises: in response to a short packet data transmission signal sent by a receiving end, using a hybrid sparse mapping mode of non-zero block-scattered non-zero element-non-zero value for any bit data information, mapping the bit data information to an initial sparse vector to obtain a first sparse vector and a second sparse vector; randomly expanding the first sparse vector and the second sparse vector using different powers to obtain a hybrid sparse vector; converting the hybrid sparse vector to the time domain to obtain a corresponding hybrid sparse vector signal, and transmitting it to the receiving end. The present invention uses the hybrid sparse mapping mode of non-zero block-scattered non-zero element-non-zero value to map to a non-zero block index, a scattered non-zero element index, and a non-zero value, thereby improving the transmission efficiency of the short packet data, reducing the potential bit error rate, and ensuring the reliable transmission of the short packet data.

A communication device according to the present disclosure comprises a control unit. The control unit performs control to transmit first packet data to a terminal device. The control unit requests the first communication device to transmit second packet data to the terminal device. The control unit notifies the first communication device regarding at least one of first information relating to the second packet data and second information relating to transmission of the second packet data.