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Uplink bandwidth assignment method for Ethernet passive optical network system

A bandwidth allocation method and passive optical network technology, applied in multiplexing system selection devices, transmission systems, digital transmission systems, etc., can solve problems such as system resource occupation, reduce allocation frequency, reduce interaction, The effect of facilitating unified planning

Inactive Publication Date: 2011-02-02
南京扬舟信息科技有限公司
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Problems solved by technology

[0007] The purpose of the present invention is to provide a flexible Ethernet passive optical system for the existing EPON / 10GEPON system, which needs to frequently and repeatedly allocate bandwidth when performing dynamic bandwidth allocation (DBA) for ONUs, resulting in the occupation of a large number of system resources. The upstream bandwidth allocation method of the network system, so as to facilitate the unified planning and processing of the upstream bandwidth by the ONU

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  • Uplink bandwidth assignment method for Ethernet passive optical network system
  • Uplink bandwidth assignment method for Ethernet passive optical network system

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] Such as figure 1 shown.

[0026] A method for distributing upstream bandwidth of an Ethernet passive optical network system, used to realize OLT distributing upstream bandwidth to an ONU in an EPON / 10GEPON system, comprising the following steps:

[0027] Step (1), when the OLT allocates upstream bandwidth to the ONU, the OLT sets the corresponding attributes for the upstream bandwidth, including the following categories: permanent or long-term use, use within a predetermined time and the length of the predetermined time, periodic use, recycling or cancellation distribute.

[0028] In step (2), the OLT sends the uplink bandwidth and corresponding attributes to the ONU, and informs the ONU to use the corresponding uplink bandwidth according to the uplink bandwidth attributes.

[0029] In step (2), if the attribute of the uplink bandwidth is perm...

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Abstract

The invention discloses an uplink bandwidth assignment method for an Ethernet passive optical network system, which is characterized by comprising the following steps that: firstly, an optical line terminal (OLT) automatically sets corresponding attributes for an uplink bandwidth of an optical network unit (ONU) when assigning the uplink bandwidth to the ONU; secondly, the OLT transmits the uplink bandwidth and the corresponding attributes to the ONU and informs the ONU of using the corresponding uplink bandwidth according to the attributes of the uplink bandwidth; and finally, the ONU transmits data by utilizing the uplink bandwidth according to the received attributes set by the OLT. In the method, the attributes are set for the assigned uplink bandwidth, so that the ONU can use the uplink bandwidth permanently or periodically for long and the OLT does not need to periodically assign the uplink bandwidth frequently. Therefore, the method can reduce interaction between the OLT and the ONU, reduce the assignment frequency of the uplink bandwidth and the occupation of downlink bandwidth resources and simultaneously bring convenience for the ONU to perform unified planning on the use of the uplink bandwidth.

Description

technical field [0001] The present invention relates to the field of optical communication, in particular to a flexible uplink in an EPON (Ethernet Passive Optical Network, Ethernet Passive Optical Network) / 10GEPON (10 Gigabit Ethernet Passive Optical Network, 10 Gigabit Ethernet Passive Optical Network) system The bandwidth allocation method is specifically an uplink bandwidth allocation method of an Ethernet passive optical network system. Background technique [0002] As we all know, the EPON / 10GEPON system is composed of OLT (Optical Line Terminal, Optical Line Terminal), ONU (Optical Network Unit, Optical Network Unit) and ODN (Optical Distribution Network, Optical Distribution Network). , optical network terminal) is a kind of ONU, which is applied to the scenario of fiber-to-the-home FTTH (that is, Fiber To The Home fiber-to-the-home). ODN is a point-to-multipoint structure, and one OLT is connected to multiple ONUs through ODN. [0003] The EPON / 10GEPON system is a...

Claims

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Application Information

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IPC IPC(8): H04Q11/00H04L12/56H04L12/743
Inventor 李青松
Owner 南京扬舟信息科技有限公司
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