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Data transmission method and device

The technology of a data transmission method and a data transmission device, which is applied in the field of data communication, can solve problems such as low reliability of transmission pipelines and no business protection method, and achieve the effects of improving low reliability, improving reliability, and ensuring transmission quality

Pending Publication Date: 2019-02-05
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above problems, the present invention proposes a data transmission method and device, which can solve the problems of low reliability of the transmission pipeline and no service protection method when the FLEXE protocol is commercially used in the communication network

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment 1

[0123] Such as Figure 7A As shown, it is a 1:1 protection scheme. In the group of the FLEXE protocol, there are two members, one is the working channel and the other is the protection channel. In the FLEXE protocol, the member number is represented by an 8-bit PHY number, among which 0 and 255 member numbers are reserved. In a specific implementation, in order to easily distinguish between the working channel and the protection channel, the number of the protection channel can be set to 255 (it can also be member 0, or the member number with the smallest number in the group, or the member number with the largest number). In this example, the PHY numbers of the two members are programmed as 1 and 255, No=1 is the working channel, and No=255 is the protection channel. Two members form a group of the FLEXE protocol, with a total of 2*20 time slots. Important customer services are all carried by the time slots corresponding to the working channel. In this example, important cu...

Embodiment 2

[0128] In another embodiment of the present invention, as Figure 7C As shown, it is a 1:4 protection scheme. There are 5 members in the group of the FLEXE protocol, 4 are working channels, and the member numbers are 1, 2, 3, 4; one is the protection channel, and the member number is 255. There are 5*20=100 time slots in the group, the first 80 time slots (carried by member numbers 1-4) are used to carry important customers, and the last 20 time slots (carried by member numbers 255) are used to carry ordinary customers . At the sending end, after all members are ready for business, members 1-4 send to the corresponding PHY through the 2-to-1 selector (selector A, B, C, D), and member 255 sends it to the corresponding PHY through the 5-to-1 selector ( The selector E) is sent to the corresponding PHY5. When all channels are normal, selector A, selector B, selector C, and selector D all select the business of input port 1 and then send it to PHY, and selector E selects the bus...

Embodiment 3

[0131] In yet another embodiment of the present invention, as Figure 7E As shown, it is a 2:3 protection scheme. There are 5 members in the group of the FLEXE protocol, 3 are working channels, member numbers are 1, 2, 3; 2 are protection channels, member numbers are 254, 255. There are 5*20=100 time slots in the group, the first 60 time slots (carried by member numbers 1-3) are used to carry important customers, and the last 40 time slots (carried by member numbers 254 and 255) are used to carry ordinary customer. After all members are ready for business, members 1-3 send to the corresponding PHY through 3-to-1 selectors (selectors A, B, C), and members 254 and 255 pass 4-to-1 selectors (selectors D, The selector E) is sent to the corresponding PHY. When all channels are normal, selector A, selector B, and selector C all select the business of input port 1 and then send it to PHY, and selector D and selector E select the business of input port 4 and send it to PHY, so that...

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Abstract

The invention provides a data transmission method and device. The method comprises the following steps: transmitting service data through a logic channel, transmitting data of the first class servicethrough work members; transmitting data of the second class service through protection members, wherein the priority of the first class service is higher than that of the second class service, variousphysical channels in the logic channel are divided into work members of protection members, and various physical channels are in one-to-one correspondence to various work members or protection members; and interchanging the physical channels corresponding to the work members and the physical channels corresponding to the protection members when the work members satisfy a preset switching condition. Through the scheme provided by the invention, when partial logic physical channels are in fault, transmission service on the physical channels corresponding to the protection members and the transmission service on the physical channels in fault are interchanged, thereby guaranteeing the transmission quality of partial important service data; for normal service data, the delay requirement is relatively low, and the transmission can be recovered after the fault is recovered, and the problem that a transmission pipeline defined by a FLEXE protocol is low in reliability and free from a serviceprotection method in communication network commercial use is improved, and the reliability of the whole network is improved.

Description

technical field [0001] The invention relates to the field of data communication, in particular to a data transmission method and device. Background technique [0002] The rapid increase of user network information flow has promoted the rapid development of communication network information transmission bandwidth. The interface bandwidth speed of communication equipment has increased from 10M (unit: bit / second, the same content below) to 100M, and 1G and 10G. To achieve the bandwidth speed of 100G, a large number of 100G optical modules have been commercially used in the market. At present, 400G optical modules have been developed, but the price of 400G optical modules is expensive, exceeding the price of four 100G optical modules, resulting in the lack of commercial economic value of 400G optical modules. In order to deliver 400G services on 100G optical modules, the International Standards Organization has defined the FLEXE protocol. The FLEXE protocol bundles multiple 10...

Claims

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Application Information

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IPC IPC(8): H04B10/25H04B10/03H04B10/032
CPCH04B10/03H04B10/032H04B10/25
Inventor 刘峰
Owner ZTE CORP