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Wavelength distribution method in optical communication system, optical network unit and optical network system

A technology of optical network unit and optical communication system, which is applied in the field of optical network unit and optical network system, and can solve problems such as time-consuming, poor user experience, and complexity

Inactive Publication Date: 2012-03-21
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the current hybrid PON system, the wavelength allocation is performed by the OLT according to the serial number sent by the ONU. Since the ONU needs to send and receive information during the wavelength allocation process, the ONU must first adjust the receiving wavelength and the sending wavelength, which leads to the current based on The process of assigning wavelengths by serial number is too complicated, time-consuming, and poor user experience

Method used

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  • Wavelength distribution method in optical communication system, optical network unit and optical network system
  • Wavelength distribution method in optical communication system, optical network unit and optical network system
  • Wavelength distribution method in optical communication system, optical network unit and optical network system

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Embodiment 1

[0024] An embodiment of the present invention provides a wavelength allocation method in an optical communication system, such as figure 1 As shown, the method includes the following steps:

[0025] 101. Set a wavelength allocation table on the ONU in advance, where the wavelength allocation table includes: service provider information and wavelength information corresponding to the service provider.

[0026] Wherein, the wavelength information corresponding to the service provider in the wavelength allocation table includes: an uplink wavelength corresponding to the service provider, and a downlink wavelength corresponding to the service provider. It can be understood here that the wavelength information corresponding to the service provider includes: the uplink wavelength corresponding to the service provider, or the uplink wavelength corresponding to the service provider, or the wavelength corresponding to the service provider The information includes: an uplink wavelength...

Embodiment 2

[0042] An embodiment of the present invention provides a wavelength allocation method in an optical communication system, such as figure 2 As shown, the method includes the following steps:

[0043] 201. After the ONU is powered on, a downlink wavelength is randomly selected and set as a temporary working wavelength of the optical module.

[0044] After the unregistered ONU is powered on, it will randomly select a downstream wavelength among its pre-stored downstream wavelengths, and set the selected downstream wavelength as the temporary working wavelength of the adjustable receiver of the optical module in the ONU. The temporary working wavelength is used for A first message delivered by the OLT is received, where the first message includes: a service provider and wavelength information corresponding to the service provider.

[0045] 203. The ONU receives the first message sent by the optical line terminal OLT, where the first message includes: a service provider and wavel...

Embodiment 3

[0081] The embodiment of the present invention provides an optical network unit ONU, such as image 3 As shown, the ONU includes:

[0082] An information setting unit 31, configured to pre-set a wavelength allocation table on the ONU, the wavelength allocation table including: service provider information, wavelength information corresponding to the service provider;

[0083] The wavelength selection unit 32 is used to obtain wavelength information corresponding to the service provider where the ONU is located through the wavelength allocation table according to the service provider where the ONU is located; and according to the obtained service provider where the ONU is located Provider corresponding wavelength information, send or receive optical signal.

[0084] Further, such as Figure 4 As shown, the ONU also includes:

[0085] The information receiving unit 33 is configured to receive a first message sent by the OLT, the first message includes: a service provider, wav...

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PUM

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Abstract

The embodiments of the invention provide a wavelength distribution method in optical communication system, an optical network unit and an optical network system, which relate to communication field. Work wavelength of an optical module can be set according to the information of the service provider, and wavelength distribution process can be simplified. The method includes the steps of setting a wavelength distribution table on the optical network unit beforehand; obtaining wavelength information of the service provider where the optical network unit is situated through the wavelength distribution table according to the service provider where the optical network unit is situated; and sending or receiving optical signals according to the corresponding wavelength information of the service provider where the optical network unit is situated. The invention simplifies wavelength distribution process, improves service quality, and enhances user experience.

Description

technical field [0001] The invention relates to the communication field, in particular to a wavelength allocation method in an optical communication system, an optical network unit and an optical network system. Background technique [0002] A hybrid passive optical network (Passive Optical Network, PON) based on a wavelength division multiplexing / time division multiplexing (Wavelength Division Multiplexing / Time Division Multiplexing, WDM / TDM) technology combines WDM and TDM technologies. [0003] In a WDM / TDM hybrid PON system, the message sent by the Optical Line Terminal (OLT) to the Optical Network Unit (ONU) is called a downlink message, and the wavelength carrying the downlink message is called a downlink wavelength; The message sent by the OLT is called an uplink message, and the wavelength carrying the uplink message is called an uplink wavelength. After the ONU is registered, the OLT communicates with the registered ONU normally. A plurality of downstream waveleng...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J14/02
CPCH04J14/0246H04J14/0282H04J14/025
Inventor 叶飞高建河周小平
Owner HUAWEI TECH CO LTD
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