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Method and system for implementing energy-saving mechanism management between onu and olt

An energy-saving control and mechanism technology, applied in optical multiplexing systems, selection devices for multiplexing systems, electromagnetic network arrangements, etc. question

Active Publication Date: 2015-09-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the user's actual use point of view, users often have no data traffic when surfing the Internet. At this time, the work of the ONU optical module is not required; however, in the standard definition mechanism of Ethernet PON (EPON), at this time, the ONU The optical module is still on / off constantly, and the normal data communication with the OLT not only consumes power consumption in vain, but also has no practical benefits for user services, which violates the requirements for energy saving and emission reduction

Method used

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  • Method and system for implementing energy-saving mechanism management between onu and olt
  • Method and system for implementing energy-saving mechanism management between onu and olt
  • Method and system for implementing energy-saving mechanism management between onu and olt

Examples

Experimental program
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Effect test

no. 1 example

[0107] In the first embodiment, the extended OAM frame is used to perform energy saving control of the fast sleep energy saving mechanism.

[0108] The OLT is in a normal state. During the normal communication with the ONU, it is assumed that a command from the network management to control the ONU to enter the fast sleep state is received. Alternatively, the media access control (MAC) of the OLT performs real-time detection of the upstream traffic of the ONU, and after finding that there is no upstream traffic for a preset period of time, the OLT is required to enter a fast sleep state. Among them, the specific implementation of real-time detection of upstream traffic belongs to the prior art and is not within the protection scope of the present invention, and its specific implementation is not used to limit the protection scope of the present invention.

[0109] First, the OLT sends to the ONU an extended OAM message for notifying fast sleep as shown in Table 1, which is also cal...

no. 2 example

[0119] In the second embodiment, the extended OAM frame is used to perform energy-saving control of the deep sleep energy-saving mechanism, and synchronization is directly performed after waking up from deep sleep.

[0120] Assume that the ONU is in a normal state, and it detects that there is no data traffic in the uplink and downlink that need to communicate with the OLT. Here, the ONU detecting whether there is uplink and downlink data traffic in a normal state belongs to a well-known technology in the art and is not within the protection scope of the present invention, and its specific implementation is not used to limit the protection scope of the present invention.

[0121] First, the ONU sends to the OLT the extended OAM message shown in Table 2-1 or Table 2-2 for notifying entering deep sleep, also known as the D-SLEEP notification message, to notify the OLT that the ONU itself will enter Deep sleep state, and the D-SLEEP notification message carries a deep sleep indication...

no. 3 example

[0136] In the third embodiment, the extended OAM frame is used to perform energy saving control of the deep sleep energy saving mechanism, and synchronization is performed after waiting for a period of time after waking from deep sleep.

[0137] Assume that the ONU is in a normal state, and it detects that there is no data traffic in the uplink and downlink that need to communicate with the OLT. Here, the ONU detecting whether there is uplink and downlink data traffic in a normal state belongs to a well-known technology in the art and is not within the protection scope of the present invention, and its specific implementation is not used to limit the protection scope of the present invention.

[0138] First, the ONU sends to the OLT the extended OAM message shown in Table 4-1 or Table 4-2 for notifying entering deep sleep, also known as the D-SLEEP notification message, to notify the OLT that the ONU itself will enter Deep sleep state, and the D-SLEEP notification message carries a...

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Abstract

The disclosure provides a method and system for realizing power saving mechanism management between an Optical Network Unit (ONU) and an Optical Line Terminal (OLT). The method includes: passing power saving information between the ONU and the OLT through an extended Operation Administration and Maintenance (OAM) frame; closing / opening an optical module of the ONU based on the obtained power saving information. With the method of the disclosure, the optical module is closed in time when the optical module of the ONU is not needed, thus reducing power consumption of the ONU, and enabling interaction between the ONU and the OLT to meet the requirement for power saving and emission reduction.

Description

Technical field [0001] The invention relates to energy-saving and emission-reduction technologies in passive optical networks, in particular to a method and system for realizing interaction between an optical network unit (ONU) and an optical line terminal (OLT). Background technique [0002] With the development of broadband access technology, operators are gradually accepting and deploying Optical Access Network (OAN) to provide users with faster speed and higher quality services. Passive Optical Network (PON, Passive Optical Network) technology is a point-to-multipoint optical fiber access technology. figure 1 Schematic diagram of the existing PON network architecture, such as figure 1 As shown, the PON is composed of an optical line terminal (OLT, Optical Line Terminal), an optical network unit (ONU, Optical Network Unit), and an optical distribution network (ODN, Optical Distribution Network). Among them, the ODN is a point-to-multipoint structure, and an OLT is connected to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/27H04Q11/00H04B10/272
CPCH04J14/0227H04B10/272H04Q2011/0079H04Q2011/0088H04Q11/0067
Inventor 张德智何苑凌臧美燕袁立权
Owner ZTE CORP