Control method for processing network packet loss

Abstract

The invention discloses a control method for processing network packet loss. The method comprises the following steps: a transmitting end generates a data packet to be transmitted, wherein each data packet has a unique serial number, and the data packet is classified into a video packet and an audio packet which are used for packaging a video frame and an audio frame; the frame priority of the video frame or the audio frame is set, and a first time threshold and a second time threshold are determined according to the frame priority; the transmitting end transmits the data packet to the receiving end and starts timing; if the transmitting end does not receive the confirmation information of the receiving end on a certain data packet in the time period greater than the first time threshold and smaller than the second time threshold, the transmitting end retransmits the data packet; and if the transmitting end does not receive the confirmation information of the receiving end on the data packet in the time period greater than the second time threshold, the transmitting end discards the data packet. According to the control method, the transmission success rate of a key data packet can be improved, and the data transmission efficiency requirement and the data transmission real-time property requirement can be met.

Description

technical field [0001] The invention relates to the communication field, and more specifically, to a control method for processing network packet loss in video communication. Background technique [0002] Among network transmission protocols, User Datagram Protocol (UDP for short) and Transmission Control Protocol (TCP for short) are most commonly used. [0003] When using TCP to transmit audio and video information, the sending end and the receiving end establish a communication connection in advance, and the audio and video information is divided into easy-to-send data blocks, which can provide stable and reliable data transmission, and also have transmission verification and flow control, etc. function, but its too strict packet loss and retransmission mechanism will affect the real-time performance of data transmission efficiency in the 3G network environment; when applied to video communication, video conferencing and other occasions, TCP also has the advantages of real...

AI Technical Summary

Problems solved by technology

[0004] When using UDP to transmit audio and video information, the sending end and the receiving end do not establish a communication connection, and the receiving end does not confirm the received data packet, which has low overhead, high efficiency, and good real-time performance, but due to unstable network connection When data packets are lost, "frame skipping" will occur in video communication, which will bring troubles to video communication users

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