Method and frame structure for realizing several functions in billion ethernet passive light network

A passive optical network, Ethernet technology, applied in the field of passive optical network, can solve the problem that the format is not defined

Inactive Publication Date: 2003-07-30
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, point-to-multipoint connections are not implemented by GE-PON, and the format used for frames between OLT and ONU in GE-PON systems has not yet been defined

Method used

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  • Method and frame structure for realizing several functions in billion ethernet passive light network
  • Method and frame structure for realizing several functions in billion ethernet passive light network
  • Method and frame structure for realizing several functions in billion ethernet passive light network

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Embodiment Construction

[0053] Now, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same or similar elements are denoted by the same reference numerals even if they appear in different drawings. Also, in the following detailed description of the present invention, when describing descriptions that are not essential to the description of the present invention, detailed descriptions of known functions and configurations involved will be omitted.

[0054] Fig. 3 is a diagram schematically showing the configuration of a GE-PON system according to the present invention.

[0055] The GE-PON system shown in FIG. 3 includes an OLT 20, an ODN 26 having an optical splitter as a passive device, ONUs 22a, 22b and 22c, and end users 24a, 24b and 24c. The connection structure between the components included in the GE-PON system shown in FIG. 3 is similar to that between the components included in the ATM-PON system shown ...

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Abstract

A GE-PON (Gigabit Ethernet-Passive Optical Network) system is provided that configures upstream and downstream frames on the basis of a variable-length Ethernet frame. The GE-PON system employs TDM (Time Division Multiplexing) for upstream packet transmission in a tree structure for a point-to-multipoint connection. A structure of a frame format is also provided that is capable of effectively accommodating Gigabit Ethernet traffic in the GE-PON system and a method is provided for implementing various functions such as initial ONU registration, late ONU registration, ranging, and dynamic bandwidth allocation in the GE-PON system.

Description

field of invention [0001] The invention relates to a passive optical network, especially a method for realizing multiple functions in a Gigabit Ethernet passive optical network (GE-PON) system and the structure of an Ethernet frame implementing the method. Background technique [0002] In order to configure the optical subscriber network from the central office to buildings or ordinary homes, such as x-digital subscriber line (xDSL), hybrid fiber-coaxial (HFC), fiber-to-the-building (FTTB), and fiber-to-the-curb (FTTC) have been proposed. , Fiber to the home (FTTH) and other network structures. In these network structures, FTTx (x=B, C or H) can be divided into active FTTx based on AON (Active Optical Network) configuration and passive FTTx based on PON (Passive Optical Network) configuration. Because the network configuration of PON has a point-to-multipoint topology, it is considered to be a more economical optical user network in the future. [0003] PON is an optical s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/44H04J3/06H04L12/28H04Q11/00
CPCH04Q11/0071H04Q2011/0079H04J3/0682H04Q11/0066H04Q11/0067H04Q2011/0088H04L12/2801H04L12/28
Inventor 李民孝朴泰诚元信喜成焕珍张顺镐金洙亨崔道仁
Owner SAMSUNG ELECTRONICS CO LTD
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