Prediction method of self-adapting digital home network flow media transmission band width

A technology for digital home network and streaming media transmission, applied in the direction of digital transmission system, data exchange network, transmission system, etc., can solve problems such as inability to achieve

Inactive Publication Date: 2010-01-20
SOUTH CHINA UNIV OF TECH
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  • Description
  • Claims
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Problems solved by technology

However, the existing home network equipment adopts a fixed codec s...

Method used

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  • Prediction method of self-adapting digital home network flow media transmission band width
  • Prediction method of self-adapting digital home network flow media transmission band width
  • Prediction method of self-adapting digital home network flow media transmission band width

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Embodiment

[0057] In this embodiment, an adaptive digital home network streaming media transmission bandwidth prediction method, such as image 3 shown, including the following steps:

[0058] (1) After the system is initialized, the server sends a packet string to the client that needs to measure the transmission bandwidth in the network, and performs transmission bandwidth measurement to obtain the initial transmission bandwidth value B(t) between the server and the client;

[0059] (2) The server determines the numerical upper limit B of the transmission bandwidth according to the obtained initial transmission bandwidth value B(t) th_H and a numerical lower limit B th_L , and determine the encoding scheme and encoding rate f for the transmission bandwidth at this value s (t);

[0060] (3) Every time t′, the client sends the current decoding rate f to the server in real time r (t), recorded by the server for backup; at the same time, the server according to the determined coding sc...

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PUM

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Abstract

The invention provides a prediction method of self-adapting digital home network flow media transmission band width. A server is used for transmitting a package train to a client for measuring to obtain an initial transmission band width value; the bound of the value is determined, and the coding scheme and the coding ratio used for the value band width are determined; then, the server predicts practical transmission band width according to the initial transmission band width value, the coding ratio and a decoding ratio fed back by the client, and the band width is compared with the bound of the initial band width value to determine whether the next practical transmission band width value is predicted or not. The invention can predict the initial transmission band width which can be used in a digital home network and can predict the practical transmission band width in the digital home network flow media in a self-adapting mode so as to ensure that video images can code in a self-adapting mode and transmit according to the network band width condition, which better utilizes limited network band width.

Description

technical field [0001] The invention relates to digital home network technology, in particular to an adaptive digital home network stream media transmission bandwidth prediction method. Background technique [0002] Digital home refers to various family and personal digital products, which integrate audio-visual entertainment, information service and home control functions according to the needs of modern family life, and realize information interaction and communication with the outside world through cable TV, broadband communication, wireless communication, etc. A comprehensive intelligent system for socialized family services. The digital home is a specific product of the high integration of IT, information appliances, and communications. The concept of digital home emerged in North America in the late 1990s and reached a relative climax in 2001. In the early digital homes, only a few technical elites could own and use luxurious decorations—the system design emphasized ...

Claims

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Application Information

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IPC IPC(8): H04L12/18H04L12/56H04L12/911
Inventor 余荣高如超谢胜利黄明
Owner SOUTH CHINA UNIV OF TECH
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