Qos control method suitable for real-time streaming media transmission of mobile videos

A control method and media transmission technology, applied in transmission systems, network traffic/resource management, electrical components, etc., can solve problems such as low image quality, large video jitter, and packet loss rate, and improve transmission service quality, mosaic Effect resolved, good effect

Inactive Publication Date: 2010-12-08
ZHEJIANG UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the shortcomings of existing real-time streaming media transmission, such as large video jitter, packet loss rate, and low image quality, the present invention provides a method that r...

Method used

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  • Qos control method suitable for real-time streaming media transmission of mobile videos
  • Qos control method suitable for real-time streaming media transmission of mobile videos
  • Qos control method suitable for real-time streaming media transmission of mobile videos

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings.

[0033] refer to Figure 1~Figure 3 , a kind of Qos control method that is applicable to mobile video real-time streaming media transmission, described Qos control method comprises the following steps:

[0034] 1) The media receiving end obtains video data packets from the streaming media sending end;

[0035] 2) The real-time transmission protocol / real-time transmission control protocol is used at the media receiving end to judge the current network status and feed back to the media sending end in the form of a report from the receiving end. The specific process is as follows:

[0036] Set the upper threshold M and the lower threshold N. When the packet loss rate is greater than the upper threshold M, it is determined that the network is overloaded at this time; when the packet loss rate is lower than the lower threshold N, it is determined that the network is light. ...

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Abstract

The invention relates to a Qos control method suitable for real-time streaming media transmission of mobile videos, which comprises the following steps: (1) acquiring video data packets by a media receiving terminal from a streaming media sending terminal; (2) judging the current state of the network by adopting the real-time transport protocol (RTP)/real-time transport control protocol (RTCP) at the media receiving terminal, and feeding the state back to the media sending terminal in a form of a receiving terminal report; (3) adjusting the video transmission rate by the media sending terminal by adjusting the video resolution and the frame rate; and transmitting the streaming media in real time according to the transmission rate. The Qos control method suitable for real-time streaming media transmission of mobile videos, which is provided by the invention, completely reduces the video jitter and the packet loss rate and effectively improves the transmission service quality of the streaming media.

Description

technical field [0001] The invention belongs to the technical field of wireless network transmission, and relates to a Qos control method suitable for real-time streaming media transmission of mobile video. Background technique [0002] At present, the transmission quality of service (Qos) in real-time streaming media has attracted much attention, and the quality of service is ultimately reflected in the customer's perception of service quality, which requires high real-time data transmission while ensuring good image transmission quality. At present, the Qos problem of real-time streaming media based on the constant parameter channel of the wired network has been well solved. However, in the wireless network, the mobility of equipment and the poor transmission channel make the Qos guarantee of mobile streaming media more complicated. For example, problems such as frame skipping and mosaics in the CDMA2000 streaming media service are related to the quality of service of the ...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04W28/24
Inventor 孟利民王莹王学智
Owner ZHEJIANG UNIV OF TECH
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