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Self-adaptive forward error correction (FEC) method, device and system

A forward error correction and self-adaptive technology, applied in the field of data transmission, can solve problems such as not considering the characteristics of the transmission content, and achieve the effect of improving the effect

Inactive Publication Date: 2010-03-31
HUAWEI TECH CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0007] The embodiment of the present invention aims at the shortcomings of the existing forward error correction process, which only focuses on network parameters without considering specific transmission content characteristics, and provides an adaptive forward error correction method, device and system

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  • Self-adaptive forward error correction (FEC) method, device and system

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0029] The embodiment of the present invention provides a method of combining the quality of service parameters of the transmission network with the transmission content and applying it to adaptive forward error correction. figure 1 It is a schematic flowchart of Embodiment 1 of the adaptive forward error correction method of the present invention, as shown in figure 1 shown, including the following steps:

[0030] Step 101, acquiring current transmission network ...

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Abstract

The present invention provides a self-adaptive forward error correction (FEC) method, a device and a system, wherein, the self-adaptive FEC method comprises steps of obtaining data of the quality of a current transmission network and determining an FEC strategy according to the data of the quality of the current transmission network, expectant transmission quality data and selected parameters having influences on network transmission content quality. The self-adaptive FEC device comprises an obtaining module for obtaining the data of the quality of the current transmission network; a strategy determining module for determining an FEC strategy according to the data of the quality of the current transmission network, expectant transmission quality data and selected parameters having influences on network transmission content quality. The present invention also provides a self-adaptive FEC system. According to the invention, because influence of parameters having influences on network transmission content quality is considered in the selecting process of an FEC strategy, the FEC effect can be improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of data transmission, and in particular to an adaptive forward error correction method, device and system. Background technique [0002] In a packet-based communication network, especially an Internet Protocol (Internet Protocol, IP) network that does not have a guaranteed quality of service, data transmission often suffers from an indefinite number of packet losses, and there are many reasons for packet loss. For example, it may be caused by router or data segment overload, bit errors in data packets; in streaming media transmission, especially the transmission of compressed video data, it is greatly affected by packet loss. [0003] In the technical solution for data packet recovery, retransmission, forward error correction (Forward Error Correction, hereinafter referred to as FEC) or a combination of retransmission and FEC can be used to recover data packets, but for streaming me...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L12/56
Inventor 陈兵张卫娥艾常权鲁亚东张庚向少华
Owner HUAWEI TECH CO LTD
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