Passive optical network system, optical line terminal and optical network units

An optical network unit and optical line terminal technology, applied in the field of communication, can solve the problems of waste of bandwidth resources and unbalanced load, and achieve the effect of realizing load balancing and enhancing flexibility

Active Publication Date: 2010-01-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] But this will also bring the problem of load imbalance, that is, the flow of a certain group is very large or even exceeds the load of the device, while other groups are idle, so that Brings a great waste of bandwidth resources

Method used

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  • Passive optical network system, optical line terminal and optical network units
  • Passive optical network system, optical line terminal and optical network units
  • Passive optical network system, optical line terminal and optical network units

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Embodiment Construction

[0046] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0047] attached image 3 The process of a method embodiment of the present invention is shown. This embodiment is mainly aimed at the situation that the uplink traffic is unbalanced between different uplink wavelengths in a multi-wavelength uplink GPON system, and the steps are as follows:

[0048] Step 301, the optical line terminal (OLT) monitors the upstream traffic of at least one optical network unit (ONU) in real time, and calculates the upstream traffic corresponding to each upstream wavelength in the system according to the monitored upstream traffic of each ONU, and according to the preset to determine whether there is an unbalanced uplink traffic between different uplink wavelengths; the pre-set condition can be specified, for example: the difference between the uplink traffic of different uplink wavelengths cannot exceed a preset It can als...

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Abstract

The invention discloses a passive optical network system, an optical line terminal, optical network units and a method for realizing load balance. The system comprises the optical line terminal OLT and the optical network units ONU, wherein the OLT is used for monitoring the uplink flow rate of at least one ONU, counting the uplink flow rates of uplink wavelengths according to the monitored uplink flow rates of the ONUs, judging whether uplink flow rate unbalance occurs among the uplink wavelengths according to preset conditions, determining the ONUs needing wavelength adjustment if the uplink flow rate unbalance occurs, generating wavelength adjustment messages and transmitting the messages to the ONUs needing wavelength adjustment; and the ONUs receive the wavelength adjustment messages from the OLT and perform corresponding wavelength adjustment according to the wavelength adjustment messages.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a passive optical network system, an optical line terminal, an optical network unit and a method for realizing load balance. Background technique [0002] With the increasingly rich telecommunication services, users' demand for access bandwidth is also increasing; in various access technologies, because optical fiber access has huge bandwidth and is suitable for long-distance transmission, operators all over the world have adopted optical fiber FTTH (fiber to the home) is an inevitable choice for the access network. In the specific implementation of FTTH, the passive optical network (PON, passive optical network) technology is currently the most used technology. [0003] attached figure 1 It is a networking diagram of a PON network. PON adopts a point-to-multipoint architecture, in which the signal transmission in the direction from the optical line terminal (OLT, optica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/28H04L12/26H04J3/16H04B10/08H04B10/27H04B10/272
CPCH04B10/272H04J14/0252H04J14/0247H04J14/0282H04J14/025H04J14/0227H04B10/27H04J14/0254H04J14/0267H04J14/0269
Inventor 高波
Owner HUAWEI TECH CO LTD
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