Network congestion detection method and device

Abstract

The invention discloses a network congestion detection method and device. The method comprises the following steps: sending a network data packet to a network receiving end in real time; receiving feedback data packets sent by the network receiving end in real time, and obtaining sending moment information and receiving moment information of each data packet group carried by each feedback data packet; wherein the data packet group is obtained by grouping network data packets received in real time by the network receiving end according to a preset duration period; determining balanced smooth delay corresponding to each data packet group by adopting a double-exponential smooth filtering method according to the sending moment information and the receiving moment information of each data packet group; determining a network congestion trend value according to the sending moment information and the receiving moment information of each data packet group and the balanced smooth delay corresponding to each data packet group; and determining the current network congestion condition according to the network congestion trend value. According to the invention, the requirement of a video conference system on network congestion detection can be better met.

Description

technical field [0001] The invention relates to a network congestion detection method and a corresponding network congestion detection device, belonging to the technical field of video conferencing. Background technique [0002] As multimedia becomes the basic trend of network communication system development, the demand for multimedia network communication based on services such as audio and video conferencing becomes increasingly strong. Among them, compared with other data services, video conferencing has higher requirements on network bandwidth. However, the current network often cannot meet the bandwidth requirements of video transmission data on the network due to bandwidth limitations such as low bandwidth and drastic changes. Therefore, video transmission Packet loss, picture mosaic, and freeze often occur in the data, which affects the quality of video playback and makes the quality of service unguaranteed. [0003] Among them, the degree of network congestion cont...

AI Technical Summary

Problems solved by technology

Due to the lack of "admission control" capability due to the Internet mechanism, when the network resources are insufficient, the usage cannot be limited, but the user can only continue to serve users by reducing the quality of service, that is, "best effort" service

[0004] In the video conferencing system, due to the large amount of data that needs to be transmitted by the network, it is easy to cause network congestion, so that the video conferencing system will show phenomena such as increased packet delay, increased packet loss probability, and decreased performance of the upper-layer application system.

Images