Optical conversion unit, optical network device, signal processing method, and storage medium

A technology of optical signal and optical conversion, applied in the field of optical communication, can solve the problems of service data transmission interruption and long service data transmission interruption time, achieve small delay, less service data transmission interruption phenomenon, reduce service data transmission interruption and The effect of time-lapse

Active Publication Date: 2020-01-14
CHINA MOBILE COMM LTD RES INST +1
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  • Application Information

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Problems solved by technology

[0007] It has been found in practice that on such a mixed transmission path with SNCP protection and OLP protection, in the process of switching between the main path and the backup path on the SNCP-protected section, even if the SNCP-protected primary path and backup path are switched in time, the Causes a long-term interruption of business data transmission; therefore, this kind of business data transmission interruption for a long time is a problem that still needs to be further solved

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  • Optical conversion unit, optical network device, signal processing method, and storage medium
  • Optical conversion unit, optical network device, signal processing method, and storage medium
  • Optical conversion unit, optical network device, signal processing method, and storage medium

Examples

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example 1

[0158] This example provides an implementation method and device for avoiding long-term service interruption in the optical transport network protection cascading scenario, which can avoid the abnormal operation of the downstream OLP caused by the instantaneous service data transmission interruption due to the upstream switching action, and at the same time ensure the downstream OLP works normally.

[0159] The OTU board at the end of the standby route protected by the downstream OLP is provided with a delay device (corresponding to the aforementioned delay processing module) to avoid misoperation of the downstream OLP caused by instantaneous service interruption in the upstream.

[0160] like Figure 5 As shown, after the upstream switching action occurs, a signal failure (Signal Fail, SF) signal will be generated and transmitted to the downstream OTU1 and OTU3. OTU1 and OTU3 will not turn off the laser, but will transparently transmit the SF signal to OTU2 and OTU4. In orde...

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Abstract

The embodiment of the invention provides an optical conversion unit, optical network equipment, a signal processing method and a storage medium. The light conversion unit comprises: a photoelectric conversion module used for converting a received first light signal into a first electric signal; a delay processing module which is connected with the photoelectric conversion module and is used for receiving the first electric signal, transmitting the first electric signal in a delayed manner if the first optical signal carries an alarm signal, and transmitting the first electric signal in a non-delay mode if the first optical signal does not carry the alarm signal; an electro-optical conversion module which is connected with the delay processing module and is used for receiving the first electric signal and outputting a second optical signal based on the first electric signal, wherein the alarm signal is at least used for triggering an illuminator of the electro-optical conversion moduleto be restarted.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to an optical conversion unit, an optical network device, a signal processing method and a storage medium. Background technique [0002] In order to ensure the stability of optical network transmission, various transmission protection modes have been proposed in related technologies. The two protection methods are briefly introduced as follows: [0003] Subnet connection protection (Subnet connection protection, SNCP), the network structure of subnet connection protection can refer to figure 1 shown. In the network structure of subnet connection protection, optical transport network (Optical Transport Network, OTN) equipment (for example, see figure 1 There are active paths and backup paths established between the OTN1 equipment and OTN2 equipment in the network; usually, when the active path is normal, the standby path is generally in a non-working state; if an abn...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H04B10/032
CPCH04B10/032
Inventor李允博王东李晗王磊
OwnerCHINA MOBILE COMM LTD RES INST