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

A wavelength division multiplexing system, local end device and remote device

A wavelength division multiplexing, remote technology, applied in the field of communication, can solve the problem that WDM technology cannot meet the requirements of 5G fronthaul network system

Active Publication Date: 2021-10-26
CHINA MOBILE COMM LTD RES INST +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The embodiment of the present invention provides a wavelength division multiplexing system, a central office device and a remote device to solve the problem that the existing WDM technology cannot meet the system requirements of the 5G fronthaul network

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
  • A wavelength division multiplexing system, local end device and remote device
  • A wavelength division multiplexing system, local end device and remote device
  • A wavelength division multiplexing system, local end device and remote device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] 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 some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0047] In the embodiments of the present invention, words such as "exemplary" or "for example" are used as examples, illustrations or illustrations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present invention shall not be construed as being more preferred or more advantageous than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "such as" is intended ...

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

An embodiment of the present invention provides a wavelength division multiplexing system, a local end device, and a remote device. The wavelength division multiplexing system includes: a plurality of optical modules, a pair of multiplexer A pair of multiplexers and demultiplexers are connected by an optical fiber link; the center wavelength spacing of each channel of the multiplexer and demultiplexer is equal; the distance between the center wavelengths of the transmitted light of the optical module in adjacent wavelength channels is not equal, and the odd wavelength channels The distances between the central wavelengths of the transmitted lights of the optical modules are equal, and the distances between the central wavelengths of the transmitted lights of the optical modules with even wavelength channels are equal. In the embodiment of the present invention, an optical module with non-equally spaced wavelength channels and a multiplexer / demultiplexer with equidistant wavelength channels are used to meet the system requirements of the 5G fronthaul network.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of communications, and in particular to a wavelength division multiplexing system, a central office device, and a remote device. Background technique [0002] With the increasingly prominent problems of computer room construction and rising maintenance costs, the fronthaul network of the fifth generation communication technology (5th generation, 5G) will undergo major structural changes, and the cloud radio access network (Cloud-Radio AccessNetwork, C-RAN) is expected to become the future 5G network. The mainstream networking method of the fronthaul network. At present, C-RAN is mainly centralized, and a single distribution unit (Distribute Unit, DU) centralized computer room connects 5-10 physical stations. Considering that 1 physical station corresponds to 3 active antenna units (Active Antenna Unit, AAU), Under the 160M frequency spectrum, each AAU has two 25G optical modules, 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 Patents(China)
IPC IPC(8): H04Q11/00H04B10/572H04B10/40H04B10/27
CPCH04Q11/0062H04B10/572H04B10/40H04B10/27H04J14/0256
Inventor 李晗张德朝王东李允博蔡谦赵阳韩柳燕周恩波
Owner CHINA MOBILE COMM LTD RES INST
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