Network congestion detection method and device

A technology of network congestion and detection method, which is applied in two-way working systems, electrical components, video conferencing systems, etc., and can solve problems such as performance degradation of upper-layer application systems, lower service quality, and lack of admission control

Active Publication Date: 2020-10-02
BEIJING JIAXUN FEIHONG ELECTRIC CO LTD
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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,

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  • Network congestion detection method and device
  • Network congestion detection method and device
  • Network congestion detection method and device

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Embodiment Construction

[0051] The technical content of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0052] In the process of realizing the present invention, the inventors found that in the current calculation of the network congestion trend, the method of one-time exponential smoothing filter can generally be used, and the one-time exponential smoothing filter method is generally applied to linear data and the time series has no obvious trend change At the same time, an exponential smoothing has obvious hysteresis, so that the estimated network congestion trend value cannot reflect the current real-time network status in time. Based on the network model in reality, it usually presents a linear trend with the change of time series, and there will be obvious lag deviation in prediction with an exponential smoothing filter method.

[0053] In order to overcome the above shortcomings, such as figure 1 As shown...

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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...

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Application Information

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IPC IPC(8): H04N7/15H04N21/647
CPCH04N7/15H04N21/64738
Inventor 杨晓云
Owner BEIJING JIAXUN FEIHONG ELECTRIC CO LTD
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