Robust channel RC-supporting coding and modulation method and apparatus
First Claim
1. A robust channel (RC)-supporting coding and modulation method, the method comprising:
- forming, on an interface between a physical media dependent (PMD) layer and a physical media specific transmission convergence (PMS-TC) layer, a data frame by using bit data carried in a discrete multi-tone (DMT) symbol, wherein the bit data carried in the DMT symbol comprises RC bit data that is obtained from an RC and service bit data that is obtained from a service data channel;
determining first-part bit data in the data frame as uncoded bit data on the interface between the PMD layer and the PMS-TC layer, wherein the first-part bit data comprises the RC bit data, and coding second-part bit data in the data frame to obtain coded bit data, wherein the data frame comprises the first-part bit data and the second-part bit data;
mapping, at the PMD layer, the uncoded bit data and the coded bit data onto multiple subcarriers corresponding to the data frame; and
performing modulation to obtain modulated subcarriers;
wherein the multiple subcarriers corresponding to the data frame comprise at least one RC subcarrier, and the RC bit data is mapped onto the at least one RC subcarrier.
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Abstract
Embodiments of the present invention provide a robust channel (RC)-supporting coding and modulation method and apparatus. The method comprises: forming, on an interface between a PMD layer and a PMS-TC layer, a data frame by using bit data carried in a DMT symbol; determining first-part bit data in the data frame as uncoded bit data on the interface between the PMD layer and the PMS-TC layer, where the first-part bit data includes RC bit data, and coding second-part bit data in the data frame to obtain coded bit data; and mapping, at the PMD layer, the uncoded bit data and the coded bit data onto multiple subcarriers corresponding to the data frame, and performing modulation to obtain modulated subcarriers, where the RC bit data is mapped onto at least one RC subcarrier.
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Citations
10 Claims
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1. A robust channel (RC)-supporting coding and modulation method, the method comprising:
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forming, on an interface between a physical media dependent (PMD) layer and a physical media specific transmission convergence (PMS-TC) layer, a data frame by using bit data carried in a discrete multi-tone (DMT) symbol, wherein the bit data carried in the DMT symbol comprises RC bit data that is obtained from an RC and service bit data that is obtained from a service data channel; determining first-part bit data in the data frame as uncoded bit data on the interface between the PMD layer and the PMS-TC layer, wherein the first-part bit data comprises the RC bit data, and coding second-part bit data in the data frame to obtain coded bit data, wherein the data frame comprises the first-part bit data and the second-part bit data; mapping, at the PMD layer, the uncoded bit data and the coded bit data onto multiple subcarriers corresponding to the data frame; and performing modulation to obtain modulated subcarriers; wherein the multiple subcarriers corresponding to the data frame comprise at least one RC subcarrier, and the RC bit data is mapped onto the at least one RC subcarrier. - View Dependent Claims (2, 3, 4, 5)
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6. A robust channel (RC)-supporting coding and modulation apparatus, comprising:
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a network interface; a processor; and a memory, the memory comprising instructions that, when executed by the processor, cause the apparatus to; form, on an interface between a physical media dependent (PMD) layer and a physical media specific transmission convergence (PMS-TC) layer, a data frame by using bit data carried in a discrete multi-tone (DMT) symbol, wherein the bit data carried in the DMT symbol comprises RC bit data that is obtained from an RC channel and service bit data that is obtained from a service data channel, determine first-part bit data in the data frame as uncoded bit data on the interface between the PMD layer and the PMS-TC layer, wherein the first-part bit data comprises the RC bit data, and coding second-part bit data in the data frame to obtain coded bit data, wherein the data frame comprises the first-part bit data and the second-part bit data, map, at the PMD layer, the uncoded bit data and the coded bit data onto multiple subcarriers corresponding to the data frame, and perform modulation to obtain modulated subcarriers; wherein the multiple subcarriers corresponding to the data frame comprise at least one RC subcarrier, and the RC bit data is mapped onto the at least one RC subcarrier. - View Dependent Claims (7, 8, 9, 10)
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Specification