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Optical transmission system equipment, conversion unit, conversion method and storage medium

A technology for converting units and system equipment, applied in the field of communications, can solve the problems of difficult hardware development and many types of hardware, and achieve the effect of reducing the types and difficulties of hardware development, eliminating optical fiber transmission, and reducing the types and difficulties of hardware development.

Active Publication Date: 2020-01-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the above-mentioned defects, the technical problem to be solved by the present invention is to provide an optical transmission system equipment, a conversion unit, a conversion method and a storage medium to solve the problem of the large variety of hardware and the difficulty in hardware development in OTN / SDH hybrid optical transmission system equipment. The problem

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  • Optical transmission system equipment, conversion unit, conversion method and storage medium
  • Optical transmission system equipment, conversion unit, conversion method and storage medium
  • Optical transmission system equipment, conversion unit, conversion method and storage medium

Examples

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Embodiment 1

[0038] An embodiment of the present invention provides a conversion unit of optical transmission system equipment, such as Figure 3 to Figure 6 As shown, the conversion unit 5 is used to convert the SDH dispatching unit mapping the synchronous digital sequence SDH format client side service into an optical transport network OTN dispatching unit during the cross-scheduling process from the client side service to the line side; During the cross-scheduling process to the client side, the OTN dispatching unit mapped to the OTN format line-side service is converted into an SDH dispatching unit.

[0039] The SDH scheduling unit includes one of the following: virtual container VC, VC cell and VC of each order; the OTN scheduling unit includes one of the following: optical channel data unit ODU and ODU cell. The conversion unit may be in the form of a conversion board.

[0040] In the embodiment of the present invention, through the use of the switching unit 5, the SDH client side s...

Embodiment 2

[0045] An embodiment of the present invention provides an optical transmission system device, such as image 3 As shown, the device includes a crossover unit 3 and a conversion unit 5;

[0046] The conversion unit 5 is used to convert the SDH scheduling unit mapping the synchronous digital sequence SDH format client side service into an optical transport network OTN scheduling unit during the cross scheduling process from the client side service to the line side; During the cross-connect scheduling process, the OTN scheduling unit mapped to the line-side service in the OTN format is converted into an SDH scheduling unit.

[0047] The cross-connect unit 3 is used for cross-scheduling the OTN dispatching unit converted by the conversion unit to the OTN line-side unit during the cross-scheduling process from the client side service to the line side; during the cross-scheduling process from the line-side service to the client side , cross-schedule the SDH scheduling unit converte...

Embodiment 3

[0061] An embodiment of the present invention provides an optical transmission system device, such as Figure 4 As shown, the equipment OTN client side unit 1, SDH client side unit 2, cross unit 3, OTN line side unit 4 and conversion unit 5; wherein, the cross unit 3 is a dual-plane cross unit, and the SDH scheduling unit is The virtual container VC, when the OTN scheduling unit is an ODU, the conversion unit 5 is specifically used to convert the VC mapping the SDH format client-side service into an ODU during the cross-scheduling process from the client-side service to the line side; During the cross-scheduling process of the service to the client side, the ODU mapped to the line-side service in the OTN format is converted into a VC.

[0062] In detail, the OTN client side unit 1 completes the access of OTN services, such as the access of OTUk (k=1, 2, 3, 4) services of different rate levels, OTUk (k = 1, 2, 3, 4) to ODUk (k=0, 1, 2, 3, 4) mapping / demapping function, and OTN...

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Abstract

The invention discloses optical transmission system equipment, a conversion unit, a conversion method and a storage medium. The conversion unit is used for converting an SDH scheduling unit mapping asynchronous digital sequence SDH format client side service into an optical transmission network OTN scheduling unit in a cross scheduling process from the client side service to a line side, and converting the OTN scheduling unit mapping the OTN format line side service into an SDH scheduling unit in the cross scheduling process from the line side service to the client side. According to the invention, the cross scheduling function of the SDH scheduling unit is realized on the OTN optical transmission system, and the hardware development type and difficulty are effectively reduced, and the intermediate optical fiber transmission is omitted, and the network level is effectively reduced, and the flexibility of system cross scheduling is effectively improved at the same time.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to an optical transmission system device, a conversion unit, a conversion method and a storage medium. Background technique [0002] In the optical transport network system, an OTN (Optical Transport Network, Optical Transport Network) optical transport system and an SDH (Synchronous Digital Hierarchy, Synchronous Digital Hierarchy) optical transport system are two independent optical transport systems. [0003] Optical transmission system equipment mainly handles Ethernet services. Among them, the scheduling unit of SDH optical transmission system equipment is VC (Virtual Container, virtual container). As the rate of Ethernet services becomes higher and higher, VC becomes difficult to install high-speed Ethernet services. is severely limited. The OTN optical transport system equipment scheduling unit is ODun, which is very suitable for installing various high-speed Ethernet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/16
CPCH04J3/1664H04J3/16H04Q11/00H04J3/1611H04Q11/0062
Inventor 孙玉洁
Owner ZTE CORP