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Registration method of optical network, olt, onu, optical network system

An optical network and optical network unit technology, applied in the field of communication, can solve the problems of intolerable quiet window, ONU unable to send uplink data, unable to meet low latency requirements of low-latency services, etc.

Active Publication Date: 2022-06-21
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the quiet window period when the OLT is open, the OLT does not allocate upstream bandwidth to the ONUs that have completed registration. Therefore, within the time corresponding to the quiet window, the ONUs that have completed registration cannot send upstream data. If there are ONUs that have completed registration and transmit low-latency services in the system , the ONU transmits low-latency services, and cannot bear the large quiet window opened by the PON system, because the large quiet window will cause delayed transmission of low-latency services
In the existing PON system, the OLT will periodically open the quiet window for ONU registration, which cannot meet the low-latency requirements of low-latency services
[0004] For the above-mentioned problems existing in related technologies, no effective solution has been found yet

Method used

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  • Registration method of optical network, olt, onu, optical network system
  • Registration method of optical network, olt, onu, optical network system
  • Registration method of optical network, olt, onu, optical network system

Examples

Experimental program
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Embodiment 1

[0023] This embodiment of the present application can run in figure 1 on the network architecture shown.

[0024] In this embodiment, a method for registering an optical network running on the above-mentioned network architecture is provided, figure 2 is a flowchart of a method for registering an optical network according to an embodiment of the present invention, such as figure 2 As shown, the process includes the following steps:

[0025] Step S202, according to the received optical power value of the ONU of the optical network unit, the ONUs under the jurisdiction of the OLT are grouped;

[0026] Step S204: Allocate corresponding upstream bandwidths to ONUs in different groups, wherein the upstream bandwidths are used for the ONUs to be registered to send registration information.

[0027] Through the above steps, by grouping the ONUs under the jurisdiction of the OLT, the ONUs in each group are allocated different upstream bandwidths, and the ONUs to be registered in ...

Embodiment 2

[0039] This embodiment also provides an optical network registration device, an optical network system, the device includes an OLT, an ONU, and is used to implement the above embodiments and preferred implementations, and what has been described will not be repeated. As used below, the term "module" may be a combination of software and / or hardware that implements a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, implementations in hardware, or a combination of software and hardware, are also possible and contemplated.

[0040] Figure 4 is a structural block diagram of an OLT according to an embodiment of the present invention, such as Figure 4 As shown, the device includes:

[0041] The grouping module 40 is used to group the ONUs under the jurisdiction of the OLT according to the received optical power value of the ONU of the optical network unit;

[0042] The allocation module 42 is configured ...

Embodiment 3

[0051] In this embodiment, the OLT allocates different uplink bandwidths for sending registration information to different groups of ONUs according to the different ranges of the optical signal transmission loss value (corresponding to the received optical power value) between the OLT and the ONU. The data of the registration message sent by the distanced ONU conflicts with the upstream data sent by the ONU that has already completed. The OLT will not allocate the upstream bandwidth to any registered ONU when the data of the registration message sent by the ONU that has not been ranged, forming a quiet window. , the OLT estimates the time period during which the upstream signal of the ONU reaches itself according to the optical signal transmission loss value range (and system topology) between the ONU and the ONU, and the OLT does not allocate the upstream bandwidth to any registered ONU within the above-mentioned time period, Forms a smaller quiet window. It solves the impact...

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Abstract

The invention provides an optical network registration method, OLT, ONU, and optical network system, wherein the method includes: grouping the ONUs under the jurisdiction of the OLT according to the received optical power value of the optical network unit ONU; grouping the ONUs in different groups The ONU allocates corresponding uplink bandwidth, wherein the uplink bandwidth is used for the ONU to be registered to send registration information. The invention solves the technical problem in the related art that the time delay caused by opening the quiet window is too large.

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to an optical network registration method, an OLT, an ONU, and an optical network system. Background technique [0002] With the development of network technology, a large number of voice, data, video and other services can be transmitted through the network, so the requirements for bandwidth are constantly increasing. Passive Optical Network (PON) is generated under this demand. [0003] figure 1 is the topological structure diagram of the PON system in the related art of the present invention, such as figure 1 As shown, a PON system usually consists of an optical line terminal (OLT) on the central office side, an optical network unit (ONU) on the user side, and an optical distribution network (ODN), and usually adopts a point-to-multipoint network structure. ODN is composed of single-mode fiber, optical splitter, optical connector and other passive optical components, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q11/00
CPCH04Q11/0067H04Q2011/0086H04Q2011/0079H04Q2011/0064H04B10/2589H04L5/0053H04Q2011/0088
Inventor 耿丹张伟良袁立权马壮
Owner ZTE CORP
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