Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Billibit Ethernet passive light network system and medium access control method

A technology of passive optical network and bit Ethernet, which is applied in the field of GE-PON system and its media access control, and can solve the problem of wasting bandwidth of GE-PON system

Inactive Publication Date: 2003-05-14
SAMSUNG ELECTRONICS CO LTD
View PDF1 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, GE-PON systems have the downside of wasting bandwidth when there is no upstream / downstream data

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Billibit Ethernet passive light network system and medium access control method
  • Billibit Ethernet passive light network system and medium access control method
  • Billibit Ethernet passive light network system and medium access control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Now, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same or similar components are denoted by the same reference numerals even if they are shown in different drawings. For the sake of clarity and simplicity, for the known functions and configurations introduced here, since they may make the subject of the present invention unclear, their detailed description will be omitted.

[0025] 2a and 2b are block diagrams explaining a GE-PON system according to a preferred embodiment of the present invention. 2a and 2b, an OLT 100, an ODN 102 composed of a splitter as a passive component, a plurality of ONUs 104i (where i=a, b, and c; and a, b, and c represent natural numbers), and among them The connection structure between is similar to the corresponding elements shown in Figures 1a and 1b. The GE-PON system shown in Figure 2a or 2b includes an OLT as a long-distance telephone central ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A GE-PON (Gigabit Ethernet Passive Optical Network) system and media access control method for the same are disclosed. In the GE-PON system, by employing MAC attributes of the gigabit Ethernet frames, an OLT (Optical Line Termination) transmits a downstream window containing both a control frame having timeslot position and size information in association with at least two ONUs and Ethernet frames to an ODN (Optical Distribution Network). The OLT analyzes contents of RAUs in an upstream window transmitted from the ONUs in a TDMA method and received from the ODN, and permits timeslot position and size corresponding to each of the ONUs. A plurality of ONUs, connected to the ODN, have their respective timeslot position and size allocated in response to their respective information contained in the control frame of the downstream window. RAU frames are transmitted having queue information and Ethernet frames associated with the allocated timeslots. As a result, by the above MAC structure of the GE-PON system, the OLT can be quickly intercommunicated with a plurality of ONUs.

Description

Invention field [0001] The present invention relates to a passive optical network (PON) system, in particular to a GE-PON (Gigabit Ethernet Frame Passive Optical Network) system and its media access control (MAC) method. Background technique [0002] The PON system is usually configured to have passive splitters or WDM (wavelength division multiplexing) components arranged between user access nodes, such as FTTH (fiber to the home) or FTTC (fiber to the roadside) and NT (network terminal) nodes . In this type of configuration, all nodes are distributed in a bus or tree structure, thus forming an overall topology. ATM (Asynchronous Transfer Mode)-PON as a typical PON system is a known technology in the art, and its MAC technology is described in detail in ITU-T (International Telecommunication Union-T) G.983.1. [0003] U.S. Patent No. 5,978,374 and entitled "Protocol FOR DATA COMMUNICATION OVER APOINT-TO-MULTIPOINT PASSIVE OPTICAL NETWORK" authorized on November 2, 1999 and Conve...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/00H04L12/44H04Q11/00
CPCH04Q2011/0064H04Q11/0066H04Q11/0067H04B10/27H04B10/25
Inventor 崔道仁吴润济李民孝张顺镐成焕珍朴泰诚
Owner SAMSUNG ELECTRONICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com