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Optical communication system, optical communication method, and communication device

A technology for optical communication systems and communication devices, applied in transmission systems, digital transmission systems, electromagnetic wave transmission systems, etc., can solve problems such as difficulty in providing high-quality services, and achieve the effects of suppressing delays, high-quality services, and reducing frequency hopping times

Inactive Publication Date: 2011-12-14
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This store-and-forward process causes delays and fluctuations in information transmission, and it is conceivable that it is difficult to provide high-quality services in systems that require high delays and fluctuations, such as the above-mentioned grid computing.

Method used

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  • Optical communication system, optical communication method, and communication device
  • Optical communication system, optical communication method, and communication device
  • Optical communication system, optical communication method, and communication device

Examples

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Embodiment Construction

[0034] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0035] [a] Description of one embodiment of the present invention

[0036] figure 1 , image 3 is a block diagram showing an optical communication system 1 according to an embodiment of the present invention, figure 2 It is a block diagram emphatically showing the functions of the communication device 5 in the optical communication system 1 according to the present embodiment. exist figure 1 , image 3 The optical communication system 1 shown, with the aforementioned Figure 7 The illustrated system is the same, and constitutes a network system in which a PON 4 is accommodated in each node device 3 forming the metropolitan area ring 2 .

[0037] In addition, the PON 4 connects one communication device 5 having an OLT function and a plurality of ONUs 6 using, for example, a passive optical splitter 10 to form a tree-like distributed topology. In addition, refere...

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Abstract

A communication unit inhibits delay and jitter during network communication, improving the communication quality. For this purpose, the communication unit includes: a first terminator 25 that terminates a communication channel in the first optical communication scheme established between the communication unit and another communication unit; a second terminator 51-53 that terminates a signal in the second optical communication scheme; and a path setting switch that switches between a first signal path setting and a second signal path setting.

Description

technical field [0001] The present invention relates to an optical communication system, an optical communication method thereof, and a communication device, and particularly relates to a technique applied in an optical access network system for suppressing delay and fluctuating transmission of high-speed optical signals to be sent to users. Background technique [0002] In recent years, with the popularization of the Internet, the pursuit of high-speed and economical communication systems has become an important issue, and PON (Passive Optical Network, Passive Optical Network) is being used as a network of the access system. A typical PON refers to the following optical network structure, that is, using a "1×N" passive optical splitter (passive optical splitter), an optical line terminal device (OLT: Optical Line Termination) and multiple optical network units ( ONU: Optical Network Unit) is connected to form a tree-like decentralized network topology. [0003] With the de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04B10/20H04L12/44H04L12/701H04B10/25H04B10/2581H04B10/27H04L12/46
CPCH04L12/2852H04L45/62H04L45/124H04L45/04H04L12/42H04B10/25H04B10/2581H04B10/27
Inventor 曾根恭介木下进
Owner FUJITSU LTD