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

Method and system for calculating link asymmetry error caused by wavelength difference

An error calculation and symmetry technology, applied in time division multiplexing systems, complex mathematical operations, multiplexing communications, etc. Quantity and the effect of improving deployment accuracy

Active Publication Date: 2021-07-09
FENGHUO COMM SCI & TECH CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in 5G applications, this error cannot meet the 20-hop 200ns precision index requirement proposed by the synchronization network carried by 5G

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 system for calculating link asymmetry error caused by wavelength difference
  • Method and system for calculating link asymmetry error caused by wavelength difference
  • Method and system for calculating link asymmetry error caused by wavelength difference

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] see figure 1 As shown, Embodiment 1 of the present invention provides a method for calculating a link asymmetry error caused by a wavelength difference, and the method includes the following steps:

[0078] S1. Obtain the refractive index of the medium in the sending direction, the link length in the sending direction, the refractive index of the medium in the receiving direction, and the link length in the receiving direction of the local end;

[0079] S2. Calculate the first asymmetric delay value of the sending direction of the local end relative to the receiving direction and the second asymmetric delay value of the receiving direction of the local end relative to the sending direction;

[0080] The first asymmetry delay value ΔT txdelay Determined according to the following formula:

[0081]

[0082] The second asymmetry delay value ΔT rxdelay Determined according to the following formula:

[0083] in,

[0084] C is the speed of light in vacuum, n tx is ...

Embodiment 2

[0171] see figure 2 , 3 As shown, the second embodiment of the present invention provides a link asymmetry error calculation system caused by wavelength difference, and the system includes:

[0172]A local synchronous measurement module arranged at the local end, which is used to obtain the medium refractive index in the sending direction and the link length in the sending direction of the local end;

[0173] The opposite-end synchronous measurement module arranged at the opposite end is used to obtain the receiving direction medium refractive index and the receiving direction link length of the local end;

[0174] An asymmetry error correction module, which is used to calculate the first asymmetric delay value of the sending direction of the local end relative to the receiving direction and the second asymmetric delay value of the receiving direction of the local end relative to the sending direction;

[0175] The first asymmetry delay value ΔT txdelay Determined accordin...

Embodiment 3

[0270] The third embodiment of the present invention provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, all or part of the method steps in the first embodiment are implemented.

[0271] The present invention realizes all or part of the processes in the above-mentioned first embodiment, and it can also be completed by instructing related hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor , the steps in each of the foregoing method embodiments can be implemented. Wherein, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying computer program code, recording medium, U disk, removab...

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 system for calculating a link asymmetry error caused by wavelength difference, and relates to the technical field of error correction, and the method comprises the following steps: obtaining a transmitting direction medium refractive index, a transmitting direction link length, a receiving direction medium refractive index and a receiving direction link length of a home terminal; and calculating a first asymmetry delay value of the sending direction of the home terminal relative to the receiving direction and a second asymmetry delay value of the receiving direction of the home terminal relative to the sending direction. According to the method, the link asymmetry error caused by the wavelength difference can be calculated, so that the link asymmetry error condition is known, later correction is facilitated, and the time synchronization networking deployment precision is improved.

Description

technical field [0001] The invention relates to the technical field of error correction, in particular to a method and system for calculating link asymmetry errors caused by wavelength differences. Background technique [0002] In the field of 5G technology, high-precision time synchronization is a key requirement for 5G bearer. Different synchronization accuracy needs to be provided according to different technical implementations or business scenarios. The 5G synchronization requirements are mainly reflected in three aspects: basic business time synchronization requirements, collaborative Business time synchronization requirements and new business synchronization requirements. [0003] The time synchronization accuracy requirement for 5G basic services is 3us, the time synchronization accuracy requirement for collaborative services is 300ns, and the time synchronization requirements for new services such as positioning are increased to 10ns. With the improvement of time s...

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): H04J3/06G06F17/18
CPCH04J3/0667H04J3/0682G06F17/18
Inventor 陈朝辉杜希
Owner FENGHUO COMM SCI & TECH 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