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Media data transmission method and device

A media data and transmission method technology, applied in the network field, can solve problems such as bottleneck link congestion routing, data throughput drop, queuing packet loss, etc., to achieve the effect of reducing network congestion, reducing network delay, and maintaining transmission performance

Active Publication Date: 2017-01-04
BIGO TECH PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing TFRC-based UDP network transmission framework estimates the available bandwidth of the network by detecting the frequency of packet loss events, and determines the sending rate of streaming media data. In the case of a bottleneck in the network, such a mechanism will inevitably lead to bottleneck link congestion and routing queuing packet loss
In this case, the streaming media transmission system will not only lose packets, but also increase the delay, and the retransmission caused by packet loss will also lead to a decrease in data throughput.

Method used

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  • Media data transmission method and device

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Embodiment approach

[0040] In the first optional implementation manner, if the change trend is a continuous upward trend, then reduce the sending rate of the streaming media data sent by the sending end to the receiving end;

[0041] Specifically, optionally, the reducing the sending rate at which the sending end sends streaming media data to the receiving end includes:

[0042] When it is detected that the receiving rate of the receiving end is greater than the sending rate, stop reducing the sending rate of the streaming media data sent by the sending end to the receiving end.

[0043] Specifically, if the change trend of the at least two network delays is a continuous upward trend, it means that the current network is congested, because when the route is congested, the routing cache queue of the routing node continues to increase, resulting in the network delay of the data packet is also increasing, it indicates that the transmission rate of streaming media data sent from the sending end to th...

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Abstract

The embodiment of the invention relates to the technical field of a network and discloses a media data transmission method and device. The method comprises the steps of obtaining at least two network time delays between a sending end and a receiving end; determining a change trend of the at least two network time delays; and adjusting a sending rate of sending streaming media to the receiving end according to the change trend. Through adoption of the method and the device, the network time delays can be reduced, the network congestion can be reduced, and the good transmission performance of the system can be kept under a relatively bad network environment.

Description

technical field [0001] The invention relates to the field of network technology, in particular to a media data transmission method and device. Background technique [0002] In recent years, the explosive development of computer networks, especially the widespread application of a large number of multimedia real-time services, poses new challenges to the traditional transport layer protocols based on Transmission Control Protocol (TCP). Most multimedia applications are very sensitive to delay, but they have a certain fault-tolerant mechanism and can tolerate a small amount of packet loss. Such applications require a transport protocol with low overhead and fast response, and the transport does not have to be completely reliable. In addition, jitter is also a problem that has a great impact on multimedia applications, and the Additive Increase Multiplicative Decrease (AIMD) strategy used by TCP congestion control will cause a large jitter in the transmission rate. At present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L12/801
CPCH04L1/0002H04L47/12
Inventor 廖琦宇
Owner BIGO TECH PTE LTD