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Optical line terminal/optical network unit wavelength adjustment method and device

A technology of optical line terminal and wavelength adjustment, which is applied in the field of communication to achieve the effect of maintaining business continuity

Active Publication Date: 2019-05-07
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the existing TWDM PON standards and technology research, there is no effective communication channel and information interaction logic for this type of communication

Method used

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  • Optical line terminal/optical network unit wavelength adjustment method and device
  • Optical line terminal/optical network unit wavelength adjustment method and device
  • Optical line terminal/optical network unit wavelength adjustment method and device

Examples

Experimental program
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Embodiment Construction

[0039] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0040] Embodiment 1 of the present invention provides a method for adjusting the wavelength of an optical line terminal, which can be applied to a source optical line terminal (OLT). figure 2 It is a flowchart of a method for adjusting the wavelength of an optical line terminal according to Embodiment 1 of the present invention, as shown in figure 2 As shown, the method mainly includes the following steps (step S202-step S204):

[0041] Step S202, the source optical line terminal (OLT) sends an adjustment notification message to the target optical line terminal (OLT), wherein the adjustment notification message is used to indicate that the optical network unit (ONU) will be adjusted to the TWDM ch...

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PUM

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Abstract

The invention discloses a method and device for adjusting the wavelength of an optical line terminal / optical network unit. Wherein, the optical line terminal wavelength adjustment method includes: the source optical line terminal (OLT) sends an adjustment notification message to the target optical line terminal (OLT), wherein the adjustment notification message is used to indicate that the optical network unit (ONU) will be adjusted to the target OLT In the time division wavelength division multiplexing channel (TWDM CH); the source OLT receives the adjustment confirmation message provided by the target OLT, wherein the adjustment confirmation message is used to indicate that the adjustment process of the ONU has been completed. Through the present invention, the effect of maintaining the service continuity between the OLT and the ONU is achieved.

Description

technical field [0001] The present invention relates to the field of communications, in particular to an optical line terminal / optical network unit wavelength adjustment method and device. Background technique [0002] In the NG-PON2 system, there are multiple TWDM (Time-Wavelength Division Multiplexing, time division-wavelength division multiplexing) channels (TWDM CH), and each TWDM CH has at least one uplink wavelength channel (US CH) and downlink wavelength channel (DS CH); each TWDM CH has at least one transceiver device (including the receiver and transmitter, and the corresponding MAC processing logic, etc., similar to the OLT in the traditional TDM PON era) for processing, and the transceiver devices of different TWDM CHs can be It is integrated in a PON line card, and can also be distributed in different PON line cards. [0003] In a multi-wavelength TWDM PON system, it is necessary to support ONUs to switch between different TWDM CHs, and the requirements are vari...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q11/00H04L12/24
CPCH04Q2213/1301H04Q2011/0086H04Q2011/0088H04Q11/0067H04J14/0223H04J14/0238
Inventor 张德智袁立权张伟良耿丹
Owner ZTE CORP
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