A coding and modulation method and device supporting robust channel rc

A channel and encoding technology, applied in the network field, can solve the problems of high throughput, no encoding protection, and inability to ensure the security of information transmission, and achieve the effect of improving the encoding rate and ensuring security.

Active Publication Date: 2018-09-21
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After obtaining the RC bit data from the RC channel and the bit data from the data channel to form a DMT data frame, if all the bit data of the DMT data frame are encoded, the encoding rate of the DMT data frame will be affected and the decodi

Method used

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  • A coding and modulation method and device supporting robust channel rc
  • A coding and modulation method and device supporting robust channel rc
  • A coding and modulation method and device supporting robust channel rc

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Embodiment Construction

[0050] 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 making creative efforts belong to the protection scope of the present invention.

[0051] Embodiments of the present invention provide a coding and modulation method and device supporting robust channel RC, which can not only improve the coding and decoding efficiency of data frames but also ensure the security of information transmission. Each will be described in detail below.

[0052] Please refer to figure 1 , figure 1 It is a flowchart of a coding and modulation method supporting robust channel RC proposed by an embodiment of the pres...

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Abstract

The embodiment of the present invention provides a coding and modulation method supporting a robust channel RC, comprising: forming a data frame with bit data carried by a DMT symbol at the interface of the PMD and the PMS-TC; The interface of PMS-TC determines the first part of bit data including the RC bit data in the data frame as non-coded bit data, and encodes the second part of bit data in the data frame to obtain coded bits Data; in the PMD, the non-coded bit data and the coded bit data are mapped to multiple subcarriers corresponding to the data frame for modulation to obtain modulated subcarriers, and the RC bit data is mapped to the at least one on the RC subcarrier. The invention also provides an encoding and modulating device supporting RC channel. By adopting the invention, the encoding and decoding rate of the data frame can be improved, and the security of information transmission can be guaranteed.

Description

technical field [0001] The present invention relates to the field of network technology, in particular to a coding and modulation method and device supporting robust channel RC. Background technique [0002] Communication systems generally have a management and maintenance channel. In some systems, the management and maintenance channel is embedded in the data channel, so the reliability of the management and maintenance channel is the same as that of the data channel. In order to improve the reliability of the management and maintenance channel, some systems specially adopt some methods to improve the reliability, such as taking out some subcarriers, increasing the SNR (Signal to Noise Ratio, signal-to-noise ratio) margin of these subcarriers, and using these The subcarriers form an independent channel, which is called RC (Robust Channel, robust channel), and these subcarriers are called RC subcarriers. Some communication systems can establish channels with different relia...

Claims

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Application Information

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IPC IPC(8): H04L29/10H04L27/12
CPCH04L27/12H04L5/0007H04L5/0046H04L69/32H04W72/541H04L1/0057H04L5/006
Inventor 刘建华何孝月
Owner HUAWEI TECH CO LTD
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