A method and device for reducing the freezing rate of video network playback

A technology of freezing rate and network, applied in the field of computer network, can solve the problem of high freezing rate, and achieve the effect of reducing the freezing rate and waiting time.

Active Publication Date: 2019-08-09
UCLOUD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, the current technical solution has the problem of high freeze rate for services that require fast data transmission, such as live broadcast.

Method used

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  • A method and device for reducing the freezing rate of video network playback
  • A method and device for reducing the freezing rate of video network playback
  • A method and device for reducing the freezing rate of video network playback

Examples

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Embodiment Construction

[0058]The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.

[0059] figure 1 It is a schematic structural diagram of a device for reducing the freeze rate of video network playback in an embodiment of the present invention, and the device is based on a CDN node network using TCP as a transmission protocol for transmission. The device 1 for reducing the freezing rate of video network playback includes a prediction unit 101 , a comparison unit 102 and a retransmission unit 103 . Wherein, the prediction unit 101 can judge the current network condition according to the smooth RTT and retransmission rate of the current network, and the prediction unit 101 actively predicts the packet loss probability of the data packet periodically; the comparison unit 102 compares the packet loss probability of the data packet with the threshold Comparison; the retransmission unit 103 can actively retransmit data packets. figur...

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Abstract

The present invention relates to a method and a device for reducing the stalling rate of network video playing. The device includes a prediction unit, a comparison unit, and a retransmission unit. The method comprises the following steps: determining the current network status according to the smooth RTT and the retransmission rate of the current network; proactively predicting the packet loss probability of the data packets; comparing the packet loss probability of the data packets with a threshold; when the packet loss probability of the data packets is greater than the threshold, retransmitting the data packets. The method and the device of the invention can proactively predict the condition of the network, proactively trigger the retransmission mechanism and reduce the network stalling rate of network video playing.

Description

technical field [0001] The invention relates to a method and a device for reducing the freezing rate of video network playback, belonging to the field of computer networks. Background technique [0002] Retransmission is an important mechanism for the TCP (Transmission Control Protocol) protocol to ensure data reliability. The TCP protocol requires that each time a segment is sent at the sending end, a timer is started and waiting for confirmation information; the receiving end returns after successfully receiving new data. Confirm the information. If the data is not confirmed before the timer expires, TCP considers that the data in the message segment has been lost or damaged, and needs to reorganize and retransmit the data in the message segment. [0003] The basis for the TCP protocol to control whether a data segment needs to be retransmitted is to set up a retransmission timer. A retransmission is started while sending a data segment. If an acknowledgment (ACK, Acknow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/442H04N21/6375H04N21/647
CPCH04N21/44227H04N21/6375H04N21/64738H04N21/64776
Inventor 杨伟邱模炯曾福振
Owner UCLOUD TECH CO LTD
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