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Detection method and device of ONU (optical network unit) as well as passive optical network system

A technology of an optical network unit and a detection method, which is applied in the field of communication, can solve problems such as low detection efficiency and impact on ONU upstream services, and achieve the effect of reducing impact

Active Publication Date: 2011-08-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The above-mentioned detection method needs to check all the ONUs to open up the empty window one by one, the detection efficiency is low, and the transmission power of the ONU needs to be turned off one by one during the detection, which will affect the upstream business of the ONU

Method used

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  • Detection method and device of ONU (optical network unit) as well as passive optical network system
  • Detection method and device of ONU (optical network unit) as well as passive optical network system
  • Detection method and device of ONU (optical network unit) as well as passive optical network system

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Embodiment 1

[0031] This embodiment provides a detection method of ONU, such as figure 1 As shown, the method includes:

[0032] S102, the optical line terminal OLT detects the identity code of the optical network unit ONU within the open uplink empty window or blank time slot.

[0033] Wherein, the identity code of the optical network unit ONU is pre-configured and sent by the optical module of the ONU; or the identity code of the optical network unit ONU is acquired from the control module of the ONU by the optical module of the ONU within an unauthorized time and sent.

[0034] The identity code of the ONU is a code for identifying the specific sequence of optical paths of the ONU. The identity code of the ONU is configured by the system, and may also be the product code of the optical module. Specifically, it can be a specific sequence optical path code for identifying the ONU (also can be referred to as a specific code stream sequence of the ONU). The specific sequence optical path...

Embodiment 2

[0050] This embodiment provides an optical network unit ONU10, such as image 3 As shown, the ONU includes an optical module 102, and the optical module 102 includes:

[0051] Obtaining unit 1022, for obtaining the identity identification code of ONU;

[0052] The sending unit 1024 is configured to send the identity code of the ONU acquired by the acquisition unit, so that the OLT can detect the identity code of the ONU in an open uplink empty window or a blank time slot.

[0053] Wherein said acquisition unit 1022 obtains the mode of the identity code of ONU to have two kinds, and one is to read the identity code of this ONU from oneself; Its two is to obtain the identity code of this ONU from the control module of ONU, for the second In the second case, the ONU may further include a control module 104 .

[0054] The control module 104 is configured to send a non-enabled control signal and the identity code of the ONU to the optical module. Wherein, the shown control modul...

Embodiment 3

[0060] Such as Figure 4 An optical line terminal OLT20 is shown, and the OLT20 includes a detection module 202 and a processing module 204 .

[0061] The detection module 202 is used to detect whether the identity code of the optical network unit ONU is received in the uplink empty window or blank time slot of the OLT;

[0062] The processing module 204 is configured to determine that the ONU corresponding to the ONU's identity code is a rogue ONU when the detection module detects the ONU's identity code.

[0063] The identity code of the ONU is a code for identifying a specific sequence of optical paths of the ONU.

[0064] In the OLT of the present embodiment, if the ID code of the ONU is detected in the uplink empty window or blank time slot; then according to the ID code of the ONU, it can be determined that the ONU corresponding to the ID code of the ONU is The rogue ONU is convenient to quickly and accurately detect and determine the rogue ONU, which reduces the impac...

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Abstract

The embodiment of the invention discloses a detection method and device of an ONU (optical network unit) as well as a passive optical network system. The method comprises the following steps: in an uplink null window or blank timeslot, detecting an identification code of the ONU; and determining that the ONU corresponding to the identification code of the ONU as a rogue ONU according to the identification code of the ONU. The embodiment of the invention also provides a corresponding device and a passive optical network system. In the passive optical network system, fast and efficient detection is realized, the fast and efficient detection is realized, the rogue ONU is determined, and the influence on uplink business is reduced.

Description

technical field [0001] The invention relates to the communication field, in particular to a detection method and device of an optical network unit and a passive optical network system. Background technique [0002] In the access PON (passive optical network, passive optical network), an OLT (optical line terminal, optical line terminal) at the central office corresponds to more than one ONU (optical network unit, optical network unit) or ONT (optical network terminal, optical Network terminal), since the ONT can be regarded as a special ONU, the ONU will be used uniformly in this article. [0003] In the downstream direction, the downstream information of the OLT is uniformly sent to all ONUs through a fixed downstream optical wavelength; in the upstream direction, all ONUs emit light in specific time slots according to the rules of time division multiplexing The bandwidth allocation instruction of the OLT sends light upstream, and the rogue ONU is an ONU that does not emit...

Claims

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Application Information

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IPC IPC(8): H04B10/08H04Q11/00H04B10/272
CPCH04Q2011/0081H04Q11/0067H04J14/086H04Q2011/0083H04B10/272H04J14/0247H04J14/0252H04J14/0282H04B10/07H04B10/25H04B10/077H04B10/079
Inventor 万民曾小飞
Owner HUAWEI TECH CO LTD
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