Encoding and decoding transmission method of multi-join data stream cracking as well as device and system thereof

A data flow and multi-connection technology, applied in the field of communication, can solve problems such as a large amount of signaling overhead and performance limitations of cracking schemes, and achieve high effective transmission rate, good adaptability, and good robustness

Active Publication Date: 2012-04-25
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the dynamic time-varying nature of the wireless channel, the performance of these cracking schemes that are highly dependent on the channel is limited.
[0006] Second, the need for a retransmission mechanism
[0007] 3. Requires a lot of signaling overhead

Method used

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  • Encoding and decoding transmission method of multi-join data stream cracking as well as device and system thereof
  • Encoding and decoding transmission method of multi-join data stream cracking as well as device and system thereof
  • Encoding and decoding transmission method of multi-join data stream cracking as well as device and system thereof

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Experimental program
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Embodiment Construction

[0034] In order to solve the deficiencies in the prior art, the embodiment of the present invention introduces digital fountain codes into the cracking solution of multi-connection data streams.

[0035] Digital fountain code means that after the original data packet is encoded, any number of encoded data packets can be generated, and the data receiving end only needs to receive a certain number (slightly greater than the number of encoded data packets) of encoded data packets , the original data packet can be successfully decoded with a high probability. This encoding process is like a fountain (encoder) that continuously produces water droplets (encoded data packets), and as long as a cup (decoder) receives a sufficient number of water droplets, the purpose of drinking (successful decoding) can be achieved . For this reason, this code is called a digital fountain code. The digital fountain code was proposed by M.Luby et al. At present, the typical fountain codes include LT...

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Abstract

The invention discloses an encoding transmission method of multi-join data stream cracking. The method comprises the following steps: digital fountain encoding is carried out on an original data packet; the encoded data packet is carried and transmitted by different radio access technologies (RAT); and encoding and transmission of the original data packet is stopped after a command of successful decoding of the original data packet is received. The invention further discloses a decoding transmission method of multi-join data stream cracking, an encoding transmission device, a decoding transmission device and a multi-join data stream cracking processing system. The method, the device and the system can help eliminate dependency on channels, prevent application of a retransmission mechanismand lower signaling cost.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method, device and system for encoding and decoding transmission of multi-connection data flow cracking. Background technique [0002] With the development of wireless communication, various radio access technologies (Radio Access Technology, RAT) emerge. These different wireless access technologies have different characteristics, such as coverage, transmission bandwidth, transmission delay, and cost. Utilizing the characteristics of these technologies and complementing each other to form a heterogeneous network that integrates multiple wireless access technologies can not only improve the utilization rate of network resources for operators, but also provide users with richer service experience. [0003] In a heterogeneous network, a multi-mode terminal can communicate through multiple wireless access technologies at the same time, that is, to implement "multiple radio ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L12/56H04W28/06
Inventor 胡南王军闫志刚谢芳李茗彭聪
Owner CHINA MOBILE COMM GRP CO LTD
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