Method and device for capacity enhancement in passive optical network

A passive optical network and capacity enhancement technology, applied in the field of capacity enhancement, can solve problems such as increased DSP storage and power consumption, inability to achieve baseband processing compatibility, and degradation of optical line performance, to achieve capacity enhancement, increase front-end capacity, and DSP cost low effect

Active Publication Date: 2016-11-23
ALCATEL LUCENT SHANGHAI BELL CO LTD
View PDF11 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The second is reflected in the compatibility of existing baseband processing: neither the pre-emphasis algorithm in the first scheme nor the carrier aggregation in the downlink direction of the second scheme can achieve compatibility with existing baseband processing
The third is reflected in the limitations of the technology itself and the computational complexity: due to the frequency multiplexing method used in these two schemes, carrier intermodulation causes serious signal damage, and the peak-to-average ratio of power introduced with the increase in the number of carriers is too high The resulting degradation of optical line performance, in

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 and device for capacity enhancement in passive optical network
  • Method and device for capacity enhancement in passive optical network
  • Method and device for capacity enhancement in passive optical network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] In the following detailed description of the preferred embodiment, reference is made to the accompanying drawings which form a part hereof. The accompanying drawings show, by way of example, specific embodiments in which the invention can be practiced. The illustrated embodiments are not intended to be exhaustive of all embodiments in accordance with the invention. It should be noted that although the steps of the relevant methods in the present invention are described in a specific order herein, this does not require or imply that these operations must be performed in this specific order, or that all shown operations must be performed to achieve the desired As a result, instead, the steps described herein may be performed in a different order. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into one step for execution, and / or one step may be decomposed into multiple steps for execution.

[0045] The following will combine ...

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 method and a device for capacity enhancement in a passive optical network. The method comprises the following steps: (A) caching digital electrical signals of baseband signals of N sequences, wherein N represents the number of baseband signal sequences needing to be cached; and (B) sequentially connecting the digital electrical signals of the baseband signals of the N sequences in series, and then, carrying out digital-to-analog conversion in a first digital-to-analog conversion unit, wherein the sampling frequency of the first digital-to-analog conversion unit is N times that of the digital electrical signal of a single baseband signal sequence. The first digital-to-analog conversion unit includes a narrowband-to-broadband converter and a digital-to-analog format converter. The method and device of the invention have the advantages of capacity enhancement, performance improvement, low DSP cost and reasonable PAPR.

Description

technical field [0001] The present invention mainly relates to the technical field of optical communication, and in particular relates to a method and a device for capacity enhancement in a passive optical network. Background technique [0002] Basic consensus on cloud-coordinated radio access network (C-RAN: Coordinated Radio Access Network) leading next-generation mobile network (NGMN: Next Generation Mobile Network) for the ever-increasing bandwidth demand in 4G LTE or upcoming 5G mobile network Has been reached between organizations and leading companies in the industry / market. Because front-haul (FH: FrontHaul) service congestion using CPRI has become a bottleneck in the development of 5G, in order to vigorously support and promote the implementation of C-RAN, the key technological breakthrough of large-capacity front-haul will become a powerful technology and business power. [0003] Recently, standardization organizations such as Full Service Access Network (FSAN: F...

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
IPC IPC(8): H04L5/00H04Q11/00H04B10/40
CPCH04B10/40H04L5/001H04Q11/0001
Inventor 叶晨晖张凯宾
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap