Method, system and equipment for distributing bandwidth of optical network

A bandwidth allocation method and bandwidth allocation technology, applied in the field of optical networks, can solve problems such as unsupportable, discarded, and small bandwidth

Active Publication Date: 2008-12-24
HUAWEI TECH CO LTD
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  • Abstract
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Problems solved by technology

[0008] However, the minimum BWmap length supported by ONU / ONT chips of many manufacturers is far greater than 2 bytes. If the BWmap allocated by the DBA functional entity is smaller than the minimum value supported by the ONU / ONT chip, the T-CONT of the ONU / ONT will fail because it cannot Support such a small bandwidth and discard uplink packets

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  • Method, system and equipment for distributing bandwidth of optical network
  • Method, system and equipment for distributing bandwidth of optical network
  • Method, system and equipment for distributing bandwidth of optical network

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Embodiment Construction

[0037] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the drawings and implementations.

[0038] The embodiment of the present invention aims at reporting by the ONU / ONT to the OLT when the minimum BWmap length supported by the ONU / ONT chip cannot meet the minimum 2-byte DBRu and the minimum 6-byte GEM frame required in the existing standard Its T-CONT bandwidth processing capability parameter, OLT carries out bandwidth adaptation according to different T-CONT bandwidth processing capability parameters, determines the bandwidth allocation map BWmap of the transport layer channel of ONU / ONT, then sends the determined BWmap to the ONU / ONT ONT, so as to realize the adaptation of the BWmap required by each T-CONT, so that the optical network can be compatible with a variety of ONU / ONT with different capab...

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Abstract

The invention discloses a bandwidth allocation method in an optical network and a system thereof. The method comprises the following steps: acquiring the bandwidth processing capacity parameters of a transmission container passage of an optical network unit (ONU) or an optical network terminal (ONT) by an optical line terminal (OLT); conducting bandwidth adaptation according to the bandwidth processing capacity parameters, and determining a bandwidth allocation diagram of the transmission container passage of the ONU or the ONT; sending the bandwidth allocation diagram to the ONU or the ONT. The invention further discloses an optical line terminal (OLT) and an optical network terminal (ONT). The method can compromise the ONTs with different capacities, and realize allocation and setting of any bandwidth values in the transmission container passage.

Description

technical field [0001] The optical network technology of the present invention specifically relates to a bandwidth allocation method, system and equipment in an optical network. Background technique [0002] PON (Passive Optical Network, Passive Optical Network) technology is a point-to-multipoint optical fiber access technology, which consists of OLT (Optical Line Terminal, Optical Line Terminal) on the office side, ONU (Optical Network Unit, Optical Network Unit) or ONT (Optical Network Terminal, Optical Network Terminal) and ODN (Optical Distribution Network, Optical Distribution Network). The so-called "passive" means that there are no active electronic devices and electronic power sources in the ODN, and all of them are composed of passive devices such as optical splitters (Splitter), so the cost of management and maintenance is relatively low. [0003] The passive optical network system mainly adopts a tree topology, such as figure 1 Shown: [0004] In this topology...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04Q11/00H04B10/12H04J3/16
CPCH04J3/1694
Inventor 高海吴炜
Owner HUAWEI TECH CO LTD
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