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Data transmission method, device and system

A technology for data transmission and transmission rate, which is applied in the field of data transmission and can solve the problems of incompatible transmission rate optical modules.

Active Publication Date: 2019-05-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a data transmission method, device and system to solve the problem in the prior art that the FlexE Shim layer cannot be compatible with optical modules whose transmission rate is not 100Gbit / s

Method used

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  • Data transmission method, device and system
  • Data transmission method, device and system
  • Data transmission method, device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] Embodiment 1, taking the interconnection between n*100G FlexE Shim layer and 2*n 50GE optical modules as an example, is used to solve the first problem.

[0085] see Figure 7 As shown, n*100G first FlexE Shim layer and 2*n 50GE first optical modules are used at the sending end, while n*100G second FlexE Shim layer and 2*n 50GE first optical modules are used at the receiving end Two optical modules. The transmission rate of the first 50GE optical module and the second 50GE optical module is 51.5625Gbit / s.

[0086] At the sending end, the first FlexE Shim layer of n*100G executes Image 6 Steps S601 to S604 are shown. specific:

[0087] A1, execute FlexE signal stream acquisition, n*100G first FlexE Shim layer acquires n FlexE signal streams, see step S601 for details.

[0088] A2, execute FlexE signal stream distribution, see step S602 for details, the first FlexE Shim layer distributes each FlexE signal stream into two sub-signal streams, as long as it is ensured ...

Embodiment 2

[0123] In the second embodiment, the interconnection between n*100G FlexE Shim layer and 4*n 25GE optical modules is used as an example to solve the first problem. see Figure 11 As shown, n*100G first FlexE Shim layer and 4*n 25GE first optical modules are used at the sending end, while n*100G second FlexE Shim layer and 4*n 25GE first optical modules are used at the receiving end Two optical modules.

[0124] Similar to Embodiment 1, at the sending end, the first FlexE Shim layer of n*100G executes Image 6 Steps S601 to S604. The difference lies in that the rate of the optical module used by the transmission device in this embodiment is different. When implementing FlexE signal flow distribution, several distribution methods for distributing each FlexE signal flow into 4 sub-signal flows are given below, specifically taking the first FlexE signal flow as an example.

[0125]The first possible distribution method: For the first FlexE signal flow, 4 FlexE instance frames ...

Embodiment 3

[0142] Embodiment 3 is used to solve the above problem 2. Take n*100G FlexE Shim layer interconnection with 4*A 25GE optical modules, 2*B 50GE optical modules, and C 100GE optical modules as an example for specific description. Wherein A+B+C=n, A, B and C are all integers greater than or equal to 0.

[0143] see Figure 13 As shown, the first FlexE Shim layer of 3*100G and four 25GE optical modules, two 50GE optical modules and one 100GE optical module are used at the sending end, and the second FlexE of n*100G is used at the receiving end Shim layer and four 25GE optical modules, two 50GE optical modules and one 100GE optical module.

[0144] After the first FlexE Shim layer obtains three 100G FlexE signal streams, it distributes the first 100G FlexE signal stream into four 25G sub-signal streams. For the specific implementation process, please refer to the implementation described in Embodiment 2. No more details here. For the distribution of the second 100G FlexE signal...

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Abstract

The invention discloses a data transmission method, device and system, which are used for solving the problem that a FlexE Shim layer and an optical module are incompatible when the transmission ratesare different. The method comprises the following steps: acquiring n FlexE signal streams, wherein the transmission rate of each FlexE signal stream is a first rate; distributing the ith FlexE signalstream into m sub-signal streams; Wherein each sub-signal stream in the m sub-signal streams carries a first identifier, and adopting the first identifier for indicating that the sub-signal stream carrying the first identifier belongs to the ith FlexE signal stream; respectively inserting each sub-signal stream in the m sub-signal streams into a preset number of filling code blocks to obtain m filling sub-signal streams, so that the transmission rate of the m filling sub-signal streams is equal to the rate of the first optical module; Wherein the rate of the first optical module is greater than the first rate / m, and the rate of the first optical module is less than the first rate;and sending m filling sub-signal streams through the m first optical modules.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a data transmission method, device and system. Background technique [0002] The Flexible Ethernet Implementation Protocol issued by the Optical Internetworking Forum (OIF) defines a Flexible Ethernet (Flex Ethernet, FlexE) shim layer in the Ethernet physical layer (PHY), and the FlexE shim layer can support Multiple Ethernet services with different rates are mixed and transmitted through bundled physical channels. The Ethernet physical layer can also be called an optical module. The optical module currently used can support a transmission rate of 100Gbit / s, and an optical module with a rate of 100Gbit / s can also be called a 100 Gigabit Ethernet (English: gigabit ethernet, Abbreviation: GE) optical module. The FlexE Shim layer of n*100G is based on the time division multiplexing distribution mechanism, and the data of multiple FlexE client (client) interface...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/16
CPCH04J3/1658H04J2203/0085H04B10/27H04Q11/0003H04Q11/0062H04Q2011/0088H04B10/40H04L1/0008H04L45/66
Inventor 苏伟
Owner HUAWEI TECH CO LTD