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Method, device and system for sending and receiving data

A technology of data and data blocks, which is applied in the field of communication, can solve problems such as difficulty in implementation, and achieve the effects of flexible cycle, reduced complexity, and reduced overhead

Inactive Publication Date: 2010-01-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above method deletes and increases part of the IPG data sent by the MAC, resulting in a change in the data rate, which makes the clock of data transmission and reception also change accordingly, which brings difficulties to the implementation.

Method used

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  • Method, device and system for sending and receiving data
  • Method, device and system for sending and receiving data
  • Method, device and system for sending and receiving data

Examples

Experimental program
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no. 1 example approach

[0100] Such as figure 2 The flow chart of the method of the first embodiment of sending data is shown, and the method of sending data is:

[0101] S101. Perform line coding on the Ethernet data, and detect an inter-frame interval of the Ethernet data to be sent.

[0102] The line encoding is 64B / 66B line encoding, and the Ethernet data is subjected to 64B / 66B line encoding, and the Ethernet data output after the line encoding is identified according to the line encoding rules, and the data blocks containing IPG data in the data are identified , to get the position of the IPG in the data.

[0103] S102. Extract idle control blocks from the inter-frame space of Ethernet data within a predetermined data length.

[0104] In this embodiment, the data of the predetermined data length includes at least N idle control blocks that can be extracted, and the value of N is the number of channels for sending data plus 1. In the step of extracting idle control blocks, the number of idle...

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Abstract

The embodiment of the invention provides a method for sending and receiving data without changing data rate. The sending method comprises the following steps: performing line coding on Ethernet data and detecting the inter-frame interval of to-be-sent Ethernet data; extracting free control blocks from the inter-frame interval of the Ethernet data within a preset data length; inserting a preset length of data into the to-be-sent data by taking the preset data length as a cycle, wherein the preset length of data consists of free control blocks of synchronous character identifiers; scrambling the to-be-sent data, wherein synchronous identifiers of each data block are not scrambled; and identifying the data blocks in the preset length of data, replacing at least one data block with a channel alignment character and sending the data completing the replacement of the channel alignment character. The invention also discloses a data-ending method, as well as a device and a system for implementing the same.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method, device and system for sending and receiving data in Ethernet. Background technique [0002] With the rapid development of communication technology, the industry's demand for bandwidth is increasing. For end users, the industry is increasing the bandwidth of residential users from 1-6 Mbps to 25-30 Mbps or even 100 Mbps, which requires an expansion of 1 to 2 orders of magnitude at the aggregation level. For the home market, IPTV is also a fast-growing high-broadband business. Providing personalized content services is a killer application. For example, many content service providers also have a huge demand for bandwidth. Bandwidth requirements for data centers, high-performance computing centers, and research institutions are also increasing. 10G Ethernet can no longer meet the current needs, so the emergence of higher-speed 40G / 100G Ethernet has become an urgen...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/06
Inventor 李靖封东宁耿东玉梁伟光曾理
Owner HUAWEI TECH CO LTD
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