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

Forward transmission system based on wavelength division multiplexing

A wavelength division multiplexing and wavelength technology, which is applied in the field of fronthaul systems based on wavelength division multiplexing, and can solve problems such as the inability to meet the expansion of operating wavelengths, the increase in the number of carrier frequencies, and the immaturity of the industrial chain.

Active Publication Date: 2021-12-03
CHINA TELECOM CORP LTD
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has the problem that the industrial chain is immature and cannot meet the needs of working wavelength expansion.
Therefore, it is difficult for the solution of the related art to support the sharp increase in the number of base stations and the number of carrier frequencies

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
  • Forward transmission system based on wavelength division multiplexing
  • Forward transmission system based on wavelength division multiplexing
  • Forward transmission system based on wavelength division multiplexing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] The relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0028] At the same time, it should be understood that, for the convenience of d...

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 discloses a forward transmission system based on wavelength division multiplexing, and relates to the technical field of communication. The forward transmission system based on wavelength division multiplexing comprises one or more coarse wavelength division multiplexing assemblies, each coarse wavelength division multiplexing assembly comprises one or more coarse wavelength division multiplexing color light modules, the color light modules are single-fiber bidirectional, and each color light module corresponds to a preset working wavelength; one or more dimmable modules, wherein the dimmable modules are single-fiber bidirectional, and each dimmable module corresponds to one extended operating wavelength; a WDM passive device is connected with the color light module and the dimmable module through distribution fibers. According to the embodiment of the invention, the increase of the forward bandwidth and the carrier frequency quantity can be supported.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a fronthaul system based on wavelength division multiplexing. Background technique [0002] In the 5G era, with the sharp increase in the fronthaul bandwidth, the number of base stations, and the number of carrier frequencies, the optical fiber occupancy is particularly important in the optical fiber direct drive solution. The optical direct drive solution is suitable for areas with abundant optical fiber resources. In areas where optical fiber resources are scarce, a wavelength division multiplexing (Wavelength Division Multiplexing, WDM for short) solution may be used to overcome the shortage of optical fiber resources. At present, the 5G fronthaul WDM solution mainly includes the coarse wavelength division passive colored light system based on the O-band. However, this method has the problem that the industrial chain is immature and cannot meet the expansion of working...

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): H04B10/25H04B10/2575H04J14/02
CPCH04B10/25752H04J14/0202
Inventor 杜喆闫飞蒋铭张德智程明
Owner CHINA TELECOM CORP 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