Control method for processing network packet loss

A technology for processing network and control method, which is applied to the control field of processing network packet loss in video communication, can solve the problems of video communication user trouble, small extra overhead, data packet loss, etc., to meet the requirements of data transmission efficiency and data transmission. Real-time requirements, the effect of improving the transmission success rate

Inactive Publication Date: 2012-11-28
SUZHOU KEDA TECH +1
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  • Abstract
  • Description
  • Claims
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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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  • Control method for processing network packet loss
  • Control method for processing network packet loss
  • Control method for processing network packet loss

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Embodiment Construction

[0024] The specific embodiment of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] It should be noted that the embodiments of the present invention are preferentially applied to the problem of network packet loss at the sending end in video communication systems. The data packets in the embodiments of the present invention are specifically classified as video packets or audio packets, which are used to encapsulate video frames and audio packets respectively. Audio frame, but it does not mean that the data packet is composed of two parts: video packet and audio packet. The present invention sets different priority levels for each video frame and audio frame. However, it should be understood that the idea of ​​the present invention can also be applied to other communication systems, as long as the communication system adds a priority judgment mechanism when transmitting data packets, and realizes the control ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04N7/26
Inventor 徐晓明郁雷沈伟平郑功赞周圣强聂际敏
Owner SUZHOU KEDA TECH
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