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Communication method and device for application forward error correction mechanism of carrier-class Ethernet

A forward error correction and communication method technology, which is applied in the field of communications and equipment using forward error correction mechanism for carrier-class Ethernet, can solve problems such as data loss, and achieve the effect of improving adaptability

Active Publication Date: 2008-06-04
FENGHUO COMM SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0090] The use of FEC technology can solve the problem of data loss caused by channel errors and improve the adaptability of Ethernet to physical channels

Method used

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  • Communication method and device for application forward error correction mechanism of carrier-class Ethernet
  • Communication method and device for application forward error correction mechanism of carrier-class Ethernet
  • Communication method and device for application forward error correction mechanism of carrier-class Ethernet

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Experimental program
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Embodiment Construction

[0139] The core content of the present invention is realized by Field Programmable Gate Array (FPGA) and applied in the invented device.

[0140] The present invention adopts the FEC mechanism to improve the performance of the Ethernet physical channel, which sets forward error correction logic sublayer between the Ethernet PHY layer and the MAC layer, relies on the FEC mechanism to correct the error code caused by the PHY layer of the physical channel, and sends it to the MAC layer processing.

[0141] The present invention proposes a new frame structure, and the forward error correction logic sublayer uses this frame structure, such as figure 1 shown. figure 1 It is the frame structure used by the forward error correction logic sublayer of the present invention.

[0142] 101 represents the length of the original Ethernet data packet (IEEE802.3 protocol frame, equivalent to the payload of the new frame structure) contained in the frame structure of the present invention. ...

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Abstract

The invention provides a communication method and a device with forward error correction mechanism applied used for the carrier grade Ethernet. The Ethernet comprises an Ethernet port and the Ethernet port comprises a media access control MAC layer, a forward error correction logic sub-layer and a physical PHY layer. The method comprises the following steps that: A. when the sending is carried out through the Ethernet, the entity at the sending side receives the Ethernet data packet from the home MAC layer and applies the FEC coding to the Ethernet data packet, and then sends the data packet after being coded to the PHY layer; B. when the receiving is carried out through the Ethernet, the entity at the receiving side receives the Ethernet data packet after being coded from the home terminal PHY layer and applies the FEC decoding to the Ethernet data packet after being coded, and then delivers the data packet after being decoded to the MAC layer. The invention achieves the goal of improving the transmission performance of the physical channel and acquiring the transmission performance meeting the requirement for application with the minimum overhead, and simultaneously the invention ensures the intercommunication and interconnection with the common Ethernet port to which the FEC mechanism is not applied so as to realize the backward compatibility of the invention.

Description

technical field [0001] The invention relates to a communication method for transmitting information on the carrier Ethernet, in particular to an FEC (Forward Error Correction, the same below) method for improving physical channel performance on the carrier Ethernet. Background technique [0002] 1. Ethernet technology. [0003] From the birth of Ethernet to the present, its development history is short, but its development momentum is extremely rapid. [0004] In 1973, two researchers at Xerox's Palo Alto Research Center, Robert Metcalfe and David Boggs, developed a network technology to connect multiple computer devices in the laboratory. The clock for this technology is taken from the Alto's system clock, and the initial data transfer rate is 2.94Mbps. Meltacafe named this technology "Ethernet". [0005] In 1980, Digital Corporation, Intel Corporation and Xerox Corporation jointly proposed the 10Mpbs Ethernet standard. [0006] In 1992, Grand Junction Corporation propo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L12/28
Inventor 戴锦友余少华
Owner FENGHUO COMM SCI & TECH CO LTD
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