2results about How to "Improve retransmission efficiency" patented technology

The invention discloses a method for ensuring the reliability of multicast transmission, which belongs to the technical field of local area networks, and comprises the following steps: step 1, a sender allocates a globally unique and progressively increasing serial number for each multicast data packet, and adds FEC (Forward Error Correction) redundant code in multicast data; 2, a receiver receives a multicast data packet, records continuous serial numbers through a sliding window, traverses the serial numbers in the sliding window, judges whether the serial numbers are continuous or not, if yes, it is judged that packet loss does not occur, the step 7 is executed, and if not, the step 3 is executed; 3, the receiver identifies redundant packets for receiving the multicast data packets according to the FEC redundant codes, counts the number of the redundant packets and judges whether the number of the redundant packets is larger than or equal to a threshold value or not, if yes, local error correction is carried out to recover data, then the step 7 is executed, and if not, the step 4 is executed. According to the method, the'confirmation storm 'is inhibited fundamentally, and the efficient balance of the network load is realized.

The embodiment of the present application provides a data timeout retransmission method, device, equipment, storage medium and product. The technical scheme provided by the embodiment of the present application determines the forward packet loss prediction probability from the sending end to the receiving end and the reverse packet loss prediction probability from the receiving end to the sending end in the case of network connection, determines the packet loss coefficient of the receiving end sending the confirmation information, and determines the data packet loss prediction probability according to the packet loss coefficient and the reverse packet loss prediction probability. The data timeout retransmission strategy can be determined according to the forward packet loss prediction probability and the data packet loss prediction probability, and the data timeout retransmission processing is performed based on the data timeout retransmission strategy. The data timeout retransmission processing is accurately determined whether to be performed in combination with the network condition and the forward and backward packet loss prediction condition, unnecessary data retransmission can be effectively reduced, the data retransmission amount is effectively reduced while the function of the timeout active retransmission is realized, the data retransmission efficiency is improved, and the data timeout retransmission effect is improved.