16 results about "Successful transmission" patented technology

The utility model relates to the technical field of water search and rescue, provide a kind of split type personnel position mark, including upper part mark, lower part mark, rope and magnetic attraction structure.The density of upper part mark is less than water, and its inside is equipped with positioning and communication unit;The outside of lower part mark is equipped with water contact switch, and its inside is equipped with control unit and power unit;Rope is built-in cable, and is connected between upper part mark and lower part mark;Therefore, the utility model is by the position mark into the density less than water upper part mark and lower part mark, and utilize magnetic attraction structure connection.When water contact switch detects falling signal, control unit immediately controls magnetic attraction structure release, so that built-in positioning and communication unit upper part mark is quickly floated to water surface under the action of buoyancy, completely avoids the signal serious attenuation and transmission failure problem caused by human body or clothing obstruction, equipment sinks underwater, greatly improves the successful transmission rate of positioning and distress signal.

The present application is applied to the technical field of communications. Provided are a data transmission method and apparatus, and an electronic device, a storage medium and a chip. In the method, a network device caches a plurality of data frames, and each data frame is to be transmitted to one terminal device; and the network device calculates the priority of each data frame on the basis of a transmission success probability of each data frame, so as to determine a first data frame which is currently to be transmitted. Since the transmission success probability used for determining the priority is related to a remaining transmission time and a complete transmission time which correspond to the data frame, when determining the first data frame to be transmitted, the number and quality of successful transmissions of the data frame are taken into consideration, so that as many data frames as possible are successfully transmitted.

The present application relates to predictive early release of uplink retransmission memory based on uplink retransmission indicator. Disclosed is a user equipment (UE) circuit, comprising: a radio frequency (RF) circuit configured to transmit uplink data; an uplink retransmission memory configured to store the transmitted uplink data for later retransmission; and a baseband circuit configured to: before receiving an uplink retransmission indicator from a base station, release the uplink retransmission memory based on a predicted value of the uplink retransmission indicator, wherein the uplink retransmission indicator indicates successful transmission of the uplink data stored in the uplink retransmission memory.

To position a terminal device, at least one transmission-reception point, or corresponding apparatus, the terminal device and a network entity exchange information. A transmission-reception point receives from the network entity a first signal comprising at least one parameter setting for positioning reference signal transmissions. The terminal device receives from the network entity a second signal comprising at least the parameter setting. The network entity receives from the transmission-reception point a first report indicating at least an occurrence time of a successful transmission of a positioning reference signal and from the terminal device a measurement report comprising information on at least the positioning reference signal. The network entity determines a position of the terminal device based on at least the first report and the measurement report.

The present disclosure provides a communication method, a communication device, a communication system and a storage medium. The method comprises: in response to a resource conflict between a transmission resource of a first downlink control indication (DCI) and a first resource, performing a first operation; wherein the first DCI is carried by a data channel, the first resource is used to carry a first channel and / or a first information, the first channel is different from the data channel carrying the first DCI, the first information is different from the first DCI, and the first operation comprises an operation required to be performed by the network device in the case of resource conflict. The method of the present disclosure avoids resource conflict, ensures the successful transmission of the first DCI in the data channel, and guarantees the communication performance and communication efficiency.

The present disclosure provides a communication method, a communication device, a communication system and a storage medium. The method comprises: determining one or more first reference signal resources, wherein the first reference signal resources are determined based on an indicated transmission configuration indication state (indicated TCI state); and transmitting first information on a first channel resource, wherein the first reference signal resources satisfy a first event a first threshold number of times within a first time window. The present disclosure ensures successful transmission of the first information, reduces repeated transmission of the terminal, and reduces signaling overhead of the terminal.

In certain embodiments, higher-level octree telepresence data for a point cloud of a 3D object is transmitted using a reliable transport mechanism that ensures successful transmission, e.g., via re-transmission of dropped packets, and lower-level octree data for the point cloud is transmitted using a non-reliable transport mechanism that does not guarantee successful transmission. When the lower-level data is contained in one or more of the bottom-most layers in the octree representation, at least some of the point cloud might be able to be reconstructed using successfully received data even when some lower-level data is lost and not re-transmitted. Using non-reliable transmission can reduce latency by avoiding time-consuming re-transmissions. The resulting reconstructed point cloud will be incomplete, but it might be sufficiently complete to provide satisfactory user experience with lower latency that using reliable transport for the entire octree.

The application discloses a kind of high-low altitude platform cooperation's V2X system hybrid transmission capacity optimization method and system, belong to vehicle networking technical field.The method includes: considering the heterogeneous channel characteristics, spectrum resource multiplexing mechanism and LAP distribution characteristics, construct three-layer heterogeneous V2X communication system model, design the mixed transmission strategy based on scene perception;Combining direct connection and relay link scene, construct time-varying CSI estimation model based on least square criterion;Based on time-varying CSI estimation model, combined with Palm theory and Laplace transform, deduce LAP existence probability, relay link distance expected value and system successful transmission probability;Establish relay transmission and direct transmission double scene capacity analysis model, extend the capacity expression under variable V2X link distance is deduced.The application improves transmission capacity and reliability under complex dynamic scene, provides theoretical basis and technical support for the deployment and optimization of high-low altitude cooperative V2X system.

The application relates to the field of communication, in particular to a communication method and a communication device. After modulation signals are subjected to layer mapping, if no other processing is performed, the modulation signals are directly subjected to antenna port mapping and resource mapping, each modulation signal is actually mapped to a subcarrier for transmission; if a subcarrier mapped by a modulation signal belongs to a deep fading frequency band, the transmission reliability of the modulation signal is reduced. In the application, after the modulation signals are subjected to layer mapping, the modulation signals are subjected to mapping again to obtain j second signal sets, the transmission resource corresponding to each signal in the j second signal sets comprises a plurality of frequency domain units, in this way, after each signal in the j second signal sets is subjected to precoding, the signal is finally mapped to the plurality of frequency domain units for transmission, if part of the plurality of frequency domain units belong to a deep fading frequency band, the signal mapped to the remaining frequency domain units still has a high probability of successful transmission, thereby improving the reliability of wireless transmission.

The present disclosure provides a message transmission method, device, equipment and storage medium. The method comprises: sending a sidelink positioning protocol (SLPP) message and / or a ranging and sidelink positioning protocol (RSPP) message, wherein the SLPP message and / or the RSPP message comprises indication information for indicating that acknowledgement (ACK) feedback is required for the SLPP message and / or the RSPP message. The method of the present disclosure ensures the successful transmission of the SLPP message and / or the RSPP message for the second UE, guarantees the transmission stability of the SLPP message and / or the RSPP message, and further guarantees the stability of SL positioning and / or SL ranging.

This invention provides a data transmission method for low-level control, comprising: performing low-level initialization on the PS side; mapping all registers of the DMA controller and the physical addresses of the DMA buffer to user-space virtual addresses based on the UIO framework, with the physical addresses of the DMA buffer becoming shared memory; directly writing waveform data into the mapped DMA buffer; before each transmission, writing transmission parameters to the mapped DMA controller and initiating DMA transmission, so that the waveform data is transmitted to the PL side; the DAC control module reading waveform data from memory and outputting analog radio frequency signals; and after transmission is completed, confirming successful transmission in user space. This invention, through the advantages of the Zynq architecture and the memory mapping of the UIO framework, allows direct control of the PL hardware by writing simple user-space code on the PS side, greatly reducing development difficulty and maintenance costs, while maintaining kernel simplicity and stability.

This application provides a data transmission method and apparatus. The method includes: dividing a first image into multiple image blocks; determining at least one first image block and at least one second image block from the multiple image blocks based on the throughput of a first channel, wherein the total data volume of the first image block is less than or equal to the minimum throughput of the first channel; transmitting the first image block and the second image block through the first channel, wherein the transmission priority of any first image block is greater than the transmission priority of any second image block. By dividing the image into first and second image blocks, setting the total data volume of the first image block to be less than or equal to the minimum throughput of the first channel, and setting the transmission priority of the first image block to be greater than the transmission priority of the second image block, the successful transmission of the first image block can be effectively guaranteed under the current throughput of the first channel, avoiding the problem of unstable data transmission.

The application discloses a wireless federated learning method based on gradient hierarchical transmission, comprising the following steps: each device separates the local gradient into a sign and an absolute value, and calculates the gradient norm as a device importance reference; a single-step convergence performance characterization model is established, and the loss expectation drop is expressed as a function of the sign and absolute value data packet successful transmission probability and the gradient importance; based on the model, a resource joint optimization problem is constructed, the device internal power allocation is solved by the Newton-Raphson method, the bandwidth allocation between devices is solved by the SCA method, the joint optimization is realized by alternating iteration, and the sign packet transmission reliability is preferentially guaranteed; the parameter server determines whether to keep the gradient according to the sign packet receiving result, introduces a reference absolute value for compensation reconstruction when the sign is correct and the absolute value is wrong, and obtains the global aggregated gradient estimation through normalization correction; and the application effectively improves the convergence efficiency and stability of the federated learning under the condition of limited resources.

Novel tools and techniques are provided for implementing intelligent queuing with feedback-driven admission controls. In various embodiments, a computing system may send, to a downstream system, first data among a plurality of data that is stored in a queue; May determine whether or not the first data has been successfully transmitted to and received by the downstream system; based on a determination that the first data has not been successfully received by the downstream system and when the first queue is in a first state, may analyze a number of successful transmission attempts and a number of unsuccessful transmission attempts within a first predetermined window, to determine whether a first trigger event has occurred; and if so, may change a state of the queue from the first state to a second state, the first and second states of the queue defining how data is enqueued by the queue.

The present disclosure provides a communication method, a communication device, a communication system and a storage medium. The method comprises: determining one or more first reference signal resources, wherein the first reference signal resources are determined based on an indicated transmission configuration indication state (indicated TCI state); determining that the first reference signal resources satisfy a first event; and transmitting a first report corresponding to the first reference signal resources. The method provided in the present disclosure can realize successful transmission of the first report, ensure the accuracy of the first report, reduce signaling overhead, and ensure communication quality.

This invention discloses a high-concurrency real-time message storage method, device, and medium, relating to the field of message storage technology. The method includes: receiving messages sent by a client and writing them to a first-level cache; responding to the message being written to the first-level cache by returning a successful transmission response to the client; generating a globally unique sequence identifier for each message, used to determine the message's temporal order; determining the target storage shard corresponding to the message according to preset sharding rules; publishing messages carrying sequence identifiers to a second-level message queue bound to the target storage shard, the second-level message queue used to buffer messages according to the sequence identifier order; monitoring the second-level message queue and writing messages in batches to a third-level persistent storage unit corresponding to the target storage shard according to the sequence identifier order. This invention supports real-time storage of high-concurrency instant messages, ensuring strict message ordering, system stability and reliability, and efficient storage.