3results about How to "Implement retransmission" patented technology

The invention discloses an edge cloud node data adaptive transmission method, which relates to the technical field of information transmission, and comprises the following steps: firstly, starting information transmission, and starting to work by an edge cloud node; then, the edge cloud node sends a test information packet to an edge cloud server at the information acquisition starting time; the edge cloud server performs network state test based on the test information packet to obtain a network state index at the moment; after receiving the network state index, the edge cloud node evaluates the network state index to obtain a suitable optimal transmission strategy; the edge cloud server reads edge cloud node queue data; and finally, the edge cloud node transmits data to the edge cloud server based on the optimal transmission strategy or the normal transmission strategy. According to the invention, for an edge cloud node data transmission scene, the network state is obtained when the data is sent each time, the data transmission strategy is adaptively judged, and the efficiency of edge cloud collection of the data collected by the edge cloud node is improved.

A communication method, a communication device and a computer readable storage medium, the method comprising: receiving an emergency state report, the emergency state report being used to report a buffer abnormal event occurring to a receiving device, the buffer abnormal event being a first data packet receiving failure and an idle buffer capacity being less than or equal to a capacity threshold; and in response to the emergency state report, retransmitting the first data packet. The communication method provided by the present application helps to improve the communication performance.

The present invention relates to the field of multimedia transmission technology, and in particular, proposes a hierarchical multimedia transmission system. It aims to solve the challenges of delay, jitter and packet loss faced by multimedia data in network transmission. The system divides multimedia data into different priorities with a flexible time slice division mechanism, adopts differentiated exchange strategies, and realizes hierarchical service quality assurance of multimedia data. High-priority time slices adopt direct exchange based on connection matrix to minimize transmission delay; ordinary priority time slices adopt cache-based storage-forwarding mode for scheduling exchange, taking into account fairness and delay performance. In addition, the present invention also proposes a flexible heterogeneous network intercommunication mechanism and a high-precision time slice synchronization method to support end-to-end service quality assurance. Compared with traditional solutions, the hierarchical exchange system can better meet differentiated multimedia business needs, improve network real-time performance, reduce delay jitter, improve transmission efficiency, and has good application prospects.