A self-adapted real-time transmission method for mobile phone stream media

A mobile phone streaming media and real-time transmission technology, which is applied in transmission systems, digital transmission systems, and devices that provide special services in branches, etc., can solve the problems of intermittent real-time viewing of programs, inability to meet viewing requirements, and reduced picture quality.

Inactive Publication Date: 2008-09-10
陶忠伟 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Different network conditions have different requirements for streaming media transmission. Under the same network conditions, the bandwidth that streaming media can use is different due to the existence of multiple applications accessing the network, and the network transmission is affected by weather and geography. The signal is strong and sometimes weak, causing real-time viewing of programs intermittently, or the picture quality is degraded, which cannot meet the viewing requirements

Method used

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  • A self-adapted real-time transmission method for mobile phone stream media
  • A self-adapted real-time transmission method for mobile phone stream media
  • A self-adapted real-time transmission method for mobile phone stream media

Examples

Experimental program
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Embodiment Construction

[0024] The specific process of the method is described below in conjunction with the accompanying drawings.

[0025] As shown in Figure 1, the server's automatic bandwidth detection module uses the amount of data sent to the client within a period of time to test the current available bandwidth of the server, and the client's automatic bandwidth detection module counts the layers of layered coded messages received in the latest period Quantity, using an exponential weighting method to predict the current available bandwidth. The specific algorithm is as follows:

[0026] The data received by the client is Layer, the client maintains a timer, which is used to trigger bandwidth detection at regular intervals. A receiving window is defined between two triggers of the timer, and the client counts the actual received quantity B of data of each layer in the i-th receiving window. i j , and predict the available bandwidth at the next moment by weighting C ...

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Abstract

The invention relates to a method for transmitting mobile phone network signals. An automatic bandwidth module is used for detecting current available bandwidth and transmiting the result to an adaptive control algorithm module which calculates layer bitstream of layered and coded original data to be transmitted; the layered coding adopts H2.64 / AVC and a real-time transmission module is used for packaging the layer bitsteam to be transmitted into message to be sent to a client. The adaptive control algorithm in the method can predict data amount of certain layer needed by the client and reasonably arrange an opportunity to sending data continuously to ensure sufficient buffer before playing and avoid effect caused by insufficient bandwidth. The method calculates data needing sending by current bandwidth when the status of the current network is not stable or the network speed is low continuously to meet watching requirements of users, minimize the effect of website bandwidth, make most of bandwidth and provide best steam media quality for users.

Description

technical field [0001] The invention relates to a mobile phone network signal transmission method, in particular to a data transmission mode of layered coding of server data. Background technique [0002] With the rapid development of the Internet, the application of streaming media technology is becoming more and more popular. Mobile streaming media is another advancement in mobile platform content development after SMS. Technically speaking, mobile phone streaming media is a method of real-time data transmission. It is an application realized by using streaming media technology on mobile phone terminals through the mobile network. Typical application examples include mobile games, mobile video on demand, mobile video chat, mobile Karaoke etc. Mobile streaming media mainly provides five service contents including information, entertainment, communication, monitoring and positioning. It can also watch TV, movies, news and various entertainment and sports programs online a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L1/00H04L29/08H04L12/18H04Q7/22H04Q7/32H04N21/6437
Inventor 施新刚陶忠伟
Owner 陶忠伟
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