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Data transmission method and related device

A data transmission method and data packet technology, applied in the field of data transmission methods and related equipment, can solve problems such as high average packet loss rate, decoding failure, and 3G network packet loss, so as to improve decoding efficiency, avoid loss, and improve decoding success rate effect

Active Publication Date: 2013-08-28
HUAWEI TECH CO LTD
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Problems solved by technology

The traffic of the 3G network has the characteristics of high speed and high bandwidth occupation, which leads to the serious packet loss phenomenon of the 3G network compared with the ordinary network, which is manifested in the high average packet loss rate and sudden packet loss.
[0004] Although the above method can be used to complete the data transmission, the packet loss phenomenon of the 3G network is more serious than that of the ordinary network, especially the problem of losing the key decoded data packets is more prominent, causing the client to obtain the XORed data packets. , decoding fails due to missing key packets for decoding

Method used

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  • Data transmission method and related device
  • Data transmission method and related device

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Embodiment Construction

[0040] 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.

[0041] First introduce the data transmission method provided by the embodiment of the present invention, figure 1 The flow of the data transmission method provided by an embodiment of the present invention is described. The processing flow of the server in the communication network described in this embodiment includes:

[0042] 101. Read the current packet queue to be sent from the packet buffer pool;

[0043] After the server obtains the source data, it divides ...

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Abstract

The invention relates to the field of a communication technology and discloses a data transmission method and related device. The data transmission method comprises the following steps: reading a packet queue to be sent currently from a packet cache pool; coding packets in the packet queue by virtue of a coding method based on a fountain coding model to obtain XOR (exclusive OR) packets; performing forward error correction coding on the XOR packets; sending the XOR packets subjected to the forward error correction coding to a client; and if an automatic repeat request from the client is received in the process of sending the XOR packets subjected to the forward error correction coding to the client, sending a decoding key packet subjected to the forward error correction coding to the client, wherein the automatic repeat request comprises the identifier of the decoding key packet required by the client. According to the invention, the decoding success rate of the client in a 3G (3rd generation) network can be improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a data transmission method and related equipment. Background technique [0002] With the third generation of mobile communication (3G: 3 rd Generation) technology has been rapidly developed and has been used more and more in operators. The traffic of the 3G network has the characteristics of high speed and high bandwidth occupation, which leads to serious packet loss in the 3G network compared with the ordinary network, which is manifested in the high average packet loss rate and sudden packet loss. [0003] The existing communication network uses Forward Error Correction Coding (FEC: Forward Error Correction) to encode the transmitted data packets, and the transmitted data packets may be XORed data packets encoded using the fountain model encoding method. In the existing 3G network, when the server sends data to the client, the following process is used for data transm...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/18H04W28/04
Inventor 李庆亮吴志刚迟忠惠张小敏孙知信
Owner HUAWEI TECH CO LTD
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