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Data communications method and system for transmitting multiple data streams calculating available bandwidth per stream and bit stream trade-off

A data flow and data technology, applied in the field of data communication, can solve the problem of data loss transmission rate without considering network congestion, and achieve the effect of smooth and stable state transmission rate

Inactive Publication Date: 2009-07-29
BRITISH TELECOMM PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, as previously discussed, UDP does not control the transfer rate taking into account network congestion and subsequent data loss due to such congestion

Method used

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  • Data communications method and system for transmitting multiple data streams calculating available bandwidth per stream and bit stream trade-off
  • Data communications method and system for transmitting multiple data streams calculating available bandwidth per stream and bit stream trade-off
  • Data communications method and system for transmitting multiple data streams calculating available bandwidth per stream and bit stream trade-off

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Embodiment Construction

[0059] Will now refer to Figure 3-11 The configuration and operation of various units constituting a preferred embodiment of the present invention are explained. It should be noted that the preferred embodiment described here is a non-limiting example of the application of the present invention to multimedia data transmission such as audio and video data, and the present invention can be used in almost any application that sends multiple data streams over a network.

[0060] in image 3 The two basic units constituting the preferred embodiment of the present invention are described in. Here, it can be seen that the server 40 in which the first video buffer 42 and the second video buffer 43 are provided is provided. The first video buffer 42 is set to store encoded video data that has been encoded at the first video encoding rate, and the second video buffer 43 is set to store more encoded videos that have been encoded at the second video encoding rate. Data, where the second video...

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PUM

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Abstract

A data transmission method and system are disclosed in which a transmission rate formula is used to calculate the available network bandwidth for each data stream to be transmitted. Multiple data streams are then sent at respective bit rates whose sum is not greater than the product of the number of data streams and the calculated available bandwidth per stream, but which can be increased at the loss of other streams sent The rate of individual data streams. The present invention is particularly useful in streaming multimedia and provides control over the rate at which each type of media is streamed at the appropriate rate. At the same time, a data receiving method and system suitable for receiving the data stream are also disclosed.

Description

Technical field [0001] The present invention relates to a method and system for data communication, and more specifically, to a method and system for sending multiple data streams through a network, and a method and system for receiving the above-mentioned sent data. system. In addition, the present invention also relates to a computer-readable storage medium storing a computer program. When the computer program runs on a computer, it controls the computer to execute the aforementioned data sending and receiving methods. Background technique [0002] In recent years, the number, scope, and number of users of telecommunications networks used for data communications have greatly increased. Previously, a feature of most data communications on such telecommunication networks was that the data was basically "message-based." "Message-based" means that the data transmitted on the network forms part of, for example, e-mail messages, files in transit, or other application data passed betw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L47/2416H04N7/24H04N7/52
CPCH04L47/12H04L47/10H04L47/2416H04N21/23406H04L65/607H04N21/44004H04L47/196H04N21/4341H04L29/06H04N21/658H04N21/2368H04N21/6373H04L29/06027H04N21/6377H04N21/2365H04L47/283H04L47/263H04N21/6125H04L65/4084H04L65/80H04L65/612H04L65/70H04L47/129
Inventor 爱德华·乌尔赛斯马滕·大卫·沃克
Owner BRITISH TELECOMM PLC