Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for maintaining the compatibility of legacy receivers, optical distributing network structure

A technology of network structure and receiver, applied in the direction of electromagnetic network arrangement, selection device of multiplexing system, electrical components, etc., can solve problems such as synchronization

Inactive Publication Date: 2008-12-10
ALCATEL LUCENT SAS
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Again, there is an ongoing problem of synchronizing legacy receivers

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
  • Method for maintaining the compatibility of legacy receivers, optical distributing network structure
  • Method for maintaining the compatibility of legacy receivers, optical distributing network structure
  • Method for maintaining the compatibility of legacy receivers, optical distributing network structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] figure 1 The optical distribution network structure according to the present invention is shown.

[0022] On the left, there is a central office, usually called an Optical Line Terminal (OLT) in this type of network. The central station is the interface to the worldwide communication network. On the right, three so-called optical network terminals can be seen, which form the transit points to the end-user equipment, commonly referred to as terminal equipment. Between them there is a passive, here tree-shaped, distributed network DN.

[0023] The distributed network DN shows a single split point SP as representative for all the split points. Typically, such a distributed network includes not just one split point at which the downstream signal path branches, but many such branch points, just as a tree has more than one branch and tip. As mentioned above, the number of users can in principle reach thousands, which means that the network must branch to the end of this n...

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

The invention relates to a method for maintaining the compatibility of legacy receivers in network termination units (ONTl) of an optical distributing network structure, especially in a passive optical network, when in the distributing network structure advanced receivers with a multiple of the data rate of the legacy receivers shall be operated too, in which signals for the advanced receivers are transmitted on the same wavelength and using the same physical paths as signals for the legacy receivers, that while transmitting signals for the advanced receivers at the same time also signals for the legacy receivers are transmitted, and that the amplitude of the signals for the advanced receivers compared to the amplitude of the signals for the legacy receivers are chosen such that the signals for the advanced receivers do not block the legacy receivers in the receipt of the signals intended for them. It further relates to an optical distributing network structure, and parts thereof including a method for using such part.

Description

technical field [0001] The present invention relates to a method for maintaining compatibility of existing receivers, an optical distribution network, a central station, a method for receiving signals, a receiver and a network terminal. Background technique [0002] The invention starts with a so-called Passive Optical Network or PON. These PONs are tree-shaped optical access networks with a central station, a distributed network structure, and multiple subscriber stations. At the user end, the equipment is divided into the optical network terminal responsible and controlled by the network provider and the terminal equipment responsible and controlled by the user. [0003] Each central station has tens to tens of thousands of user stations. [0004] The actual development is towards networks which also include optical amplifiers or regenerators, ie active elements. However, their names still include the term "passive", at least for now. [0005] Although these networks a...

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): H04Q11/00H04B10/27
CPCH04B10/27
Inventor H·克里梅尔T·普法伊费尔L·延奇
Owner ALCATEL LUCENT SAS
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com