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Encoding method and device, decoding method and device as well as communication system

A coding method and a technology of a coding device, which are applied in transmission systems, selection devices, digital transmission systems, etc., can solve the problems that circuit chips cannot be realized, and the capacity and rate cannot reach 100G, etc.

Inactive Publication Date: 2010-11-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the research on the prior art, the inventor found that: since the capacity and rate of the existing circuit chips (such as field programmable gate array devices and application specific integrated circuit devices) cannot reach 100G, if the above-mentioned coding is used The method and decoding method process 100G high-speed service data, which cannot be realized by using existing circuit chips

Method used

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  • Encoding method and device, decoding method and device as well as communication system
  • Encoding method and device, decoding method and device as well as communication system
  • Encoding method and device, decoding method and device as well as communication system

Examples

Experimental program
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Embodiment 1

[0052] Embodiment 1, Embodiment 1 describes the encoding method, figure 1 The process of Embodiment 1 is described, including:

[0053] 101. Distribute the received high-speed service data into at least two channels of low-speed service data;

[0054] The received high-speed service data may be 100G OTU4 service data, or other service data, such as 100GE Ethernet data, etc. The 100GE Ethernet data may be service data carried by Category 5 twisted pair cables.

[0055]The high-speed service data is composed of high-speed service data frames. In an embodiment of the present invention, distributing the received high-speed service data into at least two channels of low-speed service data may specifically include: distributing the high-speed service data in the received high-speed service data The frame is distributed into at least two channels of low-speed service data in units of high-speed service data frames. At this time, the low-speed service data is composed of high-speed s...

Embodiment 2

[0062] Embodiment 2, Embodiment 2 describes the decoding method, figure 2 The process of the second embodiment is described, including:

[0063] 201. Receive at least two channels of FEC-encoded low-speed service data;

[0064] 202. Perform FEC decoding on the FEC-encoded low-speed service data respectively to obtain the FEC-decoded low-speed service data;

[0065] The decoding method used to perform FEC decoding on low-speed service data corresponds to the encoding method used to perform FEC encoding on low-speed service data. For example, when the low-speed service data is FEC encoded using the RS (255, 239) encoding method described in G.709 Annex A , using the RS (255, 239) decoding method described in G.709 Annex A to perform FEC decoding on the FEC-encoded low-speed service data. When the low-speed service data is FEC encoded by using the encoding method described in G.975.1Appendix I, the FEC-encoded low-speed service data is FEC-decoded using the decoding method des...

Embodiment 3

[0068] Embodiment 3, what the embodiment 3 describes is the decoding method, image 3 The process of Embodiment 3 is described, including:

[0069] 301. Receive FEC-encoded high-speed service data;

[0070] 302. Distribute the FEC-encoded high-speed service data into at least two channels of FEC-encoded low-speed service data after descrambling;

[0071] Specifically, according to the encoding end, the high-speed service data can be distributed into several channels of low-speed service data for FEC encoding respectively, and it is determined to distribute the FEC-encoded high-speed service data into several channels of low-speed service data for FEC decoding respectively. For example, when the encoding end distributes high-speed service data into 10 low-speed service data for FEC encoding, the FEC-encoded high-speed service data can be distributed into 10 FEC-encoded low-speed service data for FEC decoding respectively; When the high-speed service data is distributed into 2...

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Abstract

The invention relates to the technical field of communication and discloses encoding method and device, decoding method and device as well as a communication system, wherein the encoding method comprises the following steps of: distributing received high-speed service data into at least two paths of low-speed service data; respectively carrying out FEC (Forward Error Correction) encoding on each path of low-speed service data; and outputting the service data through the FEC encoding. By using the technical scheme provided by the embodiment of the invention, the FEC encoding / decoding of the high-speed service data can be carried out by using a traditional line chip.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to an encoding method and device, a decoding method and device, and a communication system. Background technique [0002] Optical Transport Network (OTN: Optical Transport Network), as the core technology of the next-generation transport network, includes the technical specifications of the electrical layer and the optical layer, and has rich operation, management, maintenance (OAM: Operation, Administration, Maintenance) functions, powerful serial Connection monitoring (TCM: Tandem Connection Monitoring) capability and out-of-band Forward Error Correction (FEC: Forward Error Correction) capability enable flexible scheduling and management of large-capacity services, and are increasingly becoming mainstream technologies in backbone transport networks. At the same time, with the acceleration of the standardization process of 100GE (100GE: 100gigabit Ethernet), t...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04Q11/00
CPCH04L2001/0096H04L1/0043
Inventor 向俊凌向晖青华平谷云波
Owner HUAWEI TECH CO LTD
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