Method for transmitting signal of optical channel transmission unit and device

A technology of a transmission unit and a transmission method, which is applied in the field of optical communication, can solve problems such as incomplete transparent transmission of OTUk signals, and achieve the effect of transparent transmission

Active Publication Date: 2010-09-22
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a transmission method and device for an optical channel transmission unit signal, which solves the problem that the existing OTUk signal cannot be completely transparently transmitted

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  • Method for transmitting signal of optical channel transmission unit and device
  • Method for transmitting signal of optical channel transmission unit and device
  • Method for transmitting signal of optical channel transmission unit and device

Examples

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Embodiment Construction

[0036] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0037] figure 1 It is a schematic flowchart of a method according to the first embodiment of the present invention. This embodiment is directed to the uplink direction, that is, the direction in which a low-order (Low Order, LO) electrical signal is converted to a high-order (High Order, HO) electrical signal. see figure 1 , this example includes:

[0038] Step 11: the OTU signal transmission device receives the first OTU signal (OTUk signal) after photoelectric conversion;

[0039] Step 12: the device encapsulates the OTUk signal into an ODU signal;

[0040] Step 13: The device multiplexes and maps the ODU signal to an OPUj signal, and the OPUj signal is a high-order signal of the ODU signal;

[0041] Step 14: the device encapsulates the OPUj signal into an ODUj signal and a second OTU signal (OTUj signal) and sen...

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Abstract

The invention discloses a method for transmitting a method for transmitting signal of optical channel transmission unit and a device. The method comprises the following steps of: receiving an OTUk signal of an optical channel transfer unit after the photoelectric conversion; packaging the OTUk signal into an ODU signal of an optical channel data unit; multiplexing and mapping the ODU signal to the OPUj signal of an optical channel payload unit, wherein the OPUj signal is the high-order signal of the ODU signal; and packaging the OPUj signal into the ODUj and OTUj signals and then transmitting the ODUj and OTUj signals. The embodiment of the invention can realize the completely transparent transmission of the OTU signal.

Description

technical field [0001] The invention relates to optical communication technology, in particular to a method and device for transmitting signals of an optical channel transmission unit. Background technique [0002] With the rapid development of data services, the transmission network of data services has also been greatly developed. A wavelength division multiplexing (Wavelength Division Multiplexing, WDM) system can meet the ever-increasing demand for bandwidth required by data services. An Optical Transport Network (OTN) can solve the problem of flexible scheduling and grooming of wavelengths and sub-wavelengths in a WDM system. Therefore, the OTN network is gradually being developed. In an OTN network, it is first necessary to perform photoelectric conversion of optical signals into electrical signals, wherein the most basic electrical signal unit is an optical channel transport unit (Optical Channel Transport Unit-k, OTUk). The OTUk structure includes an Optical Channe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00
CPCH04J3/1652H04Q11/00
Inventor 肖新吴秋游马腾·维塞斯
Owner HUAWEI TECH CO LTD
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