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Method and system for realizing energy-saving mechanism management between Optical Network Unit (ONU) and Optical Line Terminal (OLT)

An energy-saving control and mechanism technology, applied in transmission systems, electromagnetic wave transmission systems, optical multiplexing systems, etc., can solve the problems of user services without practical benefits, violation of energy conservation and emission reduction, and power consumption.

Active Publication Date: 2012-04-04
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 realizing energy-saving mechanism management between Optical Network Unit (ONU) and Optical Line Terminal (OLT)
  • Method and system for realizing energy-saving mechanism management between Optical Network Unit (ONU) and Optical Line Terminal (OLT)
  • Method and system for realizing energy-saving mechanism management between Optical Network Unit (ONU) and Optical Line Terminal (OLT)

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0107] In the first embodiment, the energy saving control of the fast sleep energy saving mechanism is performed by using the extended OAM frame.

[0108] The OLT is in a normal state, and in the process of 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. It may also be that the media access control (MAC) of the OLT detects the upstream traffic of the ONU in real time, and requires the OLT to enter a fast sleep state after finding that there is no upstream traffic within a preset period of time. Wherein, the specific implementation of real-time detection of uplink traffic belongs to the prior art, and is not within the protection scope of the present invention, and its specific implementation manner is not intended to limit the protection scope of the present invention.

[0109] First, the OLT sends an extended OAM message for notifying the fast sleep to the ONU as shown in...

no. 2 example

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

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

[0121] First, the ONU sends to the OLT the extended OAM message for notification of entering deep sleep as shown in Table 2-1 or Table 2-2, also known as deep sleep (D-SLEEP) notification message, to inform the OLT that the ONU itself will enter Deep sleep state, and the D-SLEEP notifi...

no. 3 example

[0134] In the third embodiment, the extended OAM frame is used to perform the energy-saving control of the energy-saving mechanism of the deep sleep, and the synchronization is performed after waiting for a period of time after waking up from the deep sleep.

[0135] Assume that the ONU is in a normal state and detects that there is no data traffic in the uplink and downlink and needs to communicate with the OLT. Here, the ONU detects whether there is uplink and downlink data traffic in a normal state, which belongs to the well-known technology in the art, and is not within the protection scope of the present invention, and its specific implementation method is not used to limit the protection scope of the present invention.

[0136] First, the ONU sends to the OLT the extended OAM message for notification of entering deep sleep as shown in Table 4-1 or Table 4-2, also known as deep sleep (D-SLEEP) notification message, to inform the OLT that the ONU itself will enter Deep sle...

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Abstract

The invention discloses a method and a system for realizing energy-saving mechanism management between an Optical Network Unit (ONU) and an Optical Line Terminal (OLT). The method comprises the steps of: transferring energy saving information through extended Operation and Maintenance (OAM) frames between the ONU and the OLT; and closing / opening the ONU optical module according to acquired energy saving information. The method disclosed by the invention, when the ONU optical module is not needed to work, closes the optical module in time, thus reducing power consumption of the ONU and meeting the demands on energy saving and emission reduction aspects of interactions between the ONU and the OLT.

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 an optical access network (OAN, Optical Access Network) 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 It is a schematic diagram of the network architecture of the existing PON, 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). Wherein, the ODN is a point-to-mul...

Claims

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Application Information

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IPC IPC(8): H04B10/08H04B10/00H04B10/272
CPCH04B10/272H04Q2011/0079H04Q11/0067H04Q2011/0088H04J14/0227
Inventor 张德智何苑凌臧美燕袁立权
Owner ZTE CORP
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