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102results about How to "Reduce transmission delay" patented technology

Method and equipment for transmitting data

The invention discloses a method and equipment for transmitting data. The method includes that relay nodes RN acquire transmission layer care-of addresses distributed by a target donor evolved node B DeNB for the relay nodes RN; the relay nodes RN inform serving gateways S-GW corresponding to user equipment UE of the transmission layer care-of addresses, and the serving gateways S-GW transmit the data which are required to be transmitted to the relay nodes RN to the target donor evolved node B DeNB by the aid of the transmission layer care-of addresses. The method and the equipment in an embodiment of the invention have the advantages that the relay nodes RN inform the serving gateways S-GW corresponding to the user equipment UE of the transmission layer care-of addresses which are distributed to the relay nodes RN by the target donor evolved node B DeNB, so that the serving gateways S-GW corresponding to the user equipment UE can directly transmit the data to the target donor evolved node B DeNB, the data can be prevented from being transmitted through P-GW (data packet networks gateway) (RN)/S-GW (RN) in data transmission procedures, the UE data packet transmission delay can be shortened, transmission load on a network can be reduced, return link resources between the P-GW (RN)/S-GW (RN) and the target donor evolved node B DeNB can be saved, and the user experience can be improved.
Owner:DATANG MOBILE COMM EQUIP CO LTD

Power transmission and transformation equipment state online monitoring method integrating edge calculation and deep learning

The invention discloses a power transmission and transformation equipment state online monitoring method integrating edge calculation and deep learning. According to the invention, the method comprises the steps: completing the acquisition of power transmission and transformation equipment image information through a monitoring equipment layer; enabling an edge network layer to realize the mutualcommunication between the monitoring equipment layer and an edge server layer; enabling the edge server layer to preprocess the acquired image information of the power transmission and transformationequipment; enabling a mobile core network layer to realize mutual communication between the edge server layer and the cloud server layer; and enabling the cloud server layer to complete the power transmission and transformation equipment state classification and fault identification according to the fusion edge calculation and a trained deep learning model. Compared with an existing power transmission and transformation equipment state on-line monitoring method, the power transmission and transformation equipment state on-line monitoring technology has the advantages of being high in recognition precision, low in transmission time delay, low in cost and the like.
Owner:EAST CHINA JIAOTONG UNIVERSITY

Time-sensitive network data transmission system and transmission method

The invention discloses a time-sensitive network data transmission system and transmission method. The system comprises end equipment serving as a data transceiving point, a clock synchronization module for providing an accurate synchronous clock for a network, and bridge equipment playing a switching role, in the bridge equipment, a port flow monitoring and filtering module provides a supervisionmechanism for port data entry management and control, priority queues provide at most eight priority queues, a transmission scheduling module provides a transmission mechanism for time-sensitive datatransmission, and the scheduling module is preempted to optimize time-sensitive data transmission delay. The internal memory unit performs centralized management on the to-be-converted data frames. The system adopts a perfect data shaping scheduling mechanism, so that strong real-time data can preempt weak real-time data, the preempted data can continuously occupy a channel to be transmitted after the strong real-time data is transmitted, a set of rapid transmission solution is provided for future deterministic data, the transmission delay of the data is greatly reduced. The reliability and stability of data transmission are improved.
Owner:ZHEJIANG LAB

UAV communication TDMA networking method, system, device and storage medium

ActiveCN107911866AImprove reliability and transmission efficiencyReduce transmission delayTime-division multiplexWireless communicationData transmissionFixed time
The invention relates to a UAV communication TDMA networking method, system, device and storage medium. The UAV communication TDMA networking method includes that a base station sends broadcast signals to a UAV so as to enable TDMA time slot synchronization of a UAV and the base station; the base station receives UAV time slot distribution requests; the base station generates TDMA time slots according to the quantity of the received UAV time slot distribution requests so as to enable the UAV to perform data transmission on the corresponding TDMA time slots. Dynamic generation and distributionof the quantity of the TDMA time slots of the base station are realized and the quantity of the TDMA time slots is decided according to the number of UAVs. Therefore, defects of channel waste when thequantity of UAVs is small and time slot distribution incapability when UAV data is excessive due to fixed time slot quantity in a prior TDMA communication method are made up. According to the invention, the UAV performs data transmission on the TDMA time slots, so that transmission efficiency and reliability are improved effectively, interaction time requesting is not required and transmission time delay is reduced.
Owner:丰翼科技(深圳)有限公司

Space coupling based LDPC code HARQ retransmission mechanism

The invention discloses a space coupling based LDPC code HARQ retransmission mechanism, and belongs to the technical field of error control. A receiving end stores old code sequences failed in transmission in a buffer; a transmitting end constructs a coupling basis matrix and generates a coupling extension verification matrix, codes the old information sequences failed in transmission and to-be-transmitted new information sequences after being subjected to splicing so as to obtain new code word sequences, stores the new code word sequences in the buffer after the punching positions of the old information sequences and the new information sequence are removed from the new code word sequences, and then selects a code sequence with a certain length and transmits the code sequence through a channel; and the receiving end decodes the received code sequence and the old code sequences in the buffer by utilizing the coupling extension verification matrix and an old decoding verification matrix. By utilizing the error correction performance and retransmission chance of the newly transmitted sequences to restore the sequences failed in transmission in an IR-HARQ mechanism, the space coupling based LDPC code HARQ retransmission mechanism can reduce the ARQ retransmission probability and system delay and can improve the throughput of the system while improving the reliability of a communication system.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
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