Supercharge Your Innovation With Domain-Expert AI Agents!

Carrier synchronizing method and device

A carrier synchronization and carrier technology, applied in modulation carrier systems, digital transmission systems, electrical components, etc., can solve the problems of poor auto-correlation and cross-correlation characteristics, large carrier frequency offset deviation, inaccurate synchronization results, etc. The effect of partial precision and reducing the bit error rate

Active Publication Date: 2017-10-20
北京溢美四方软件技术有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a carrier synchronization method for the defects that the carrier frequency deviation is large and the synchronization result is inaccurate due to its poor autocorrelation and cross-correlation characteristics when the existing communication system uses m-sequence for carrier synchronization. Method and apparatus to solve the above problems

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
  • Carrier synchronizing method and device
  • Carrier synchronizing method and device
  • Carrier synchronizing method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0061] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Note that the aspects described below in conjunction with the drawings and specific embodiments are only exemplary, and should not be construed as limiting the protection scope of the present invention.

[0062] In addition to being used in OvTDM and OvFDM systems, the technologies described in this paper can also be widely used in practical mobile communication systems, such as TD-LTE, TD-SCDMA and other systems, and can also be widely used in satellite communication, microwave line-of-sight communication In any wireless communication system such as , scattering communication, atmospheric optical communication, infrared communication and aquatic communication. The terms "network" and "system" are often used interchangeably.

[0063] The continuous development of mobile communications and the emergence of new services have put forward higher a...

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 provides a carrier synchronizing method. The method includes performing cross-correlation operation on two training codes extracted from receiving signals so as to acquire frequency deviation of carriers between a receiving terminal and a transmitting terminal, wherein the receiving signals are time domain signals from the transmitting terminal and include a training code based training sequence and data, wherein the frequency width of the training sequence is greater than that of the data and the power spectrum density of the training sequence is lower than that of the data; and performing frequency deviation correction on the receiving signals based on the frequency deviation. According to the invention, system frequency deviation precision is improved and error code rate of the whole system is reduced.

Description

technical field [0001] The present invention generally relates to a wireless communication system, and in particular to a carrier synchronization method and device. Background technique [0002] Wireless communication networks are widely deployed to provide various communication services such as voice, video, packet data, messaging, broadcast, and so on. These wireless networks may be multiple-access networks capable of supporting multiple users by sharing available network resources. Examples of such multiple-access networks include Code Division Multiple Access (CDMA) networks, Time Division Multiple Access (TDMA) networks, Frequency Division Multiple Access (FDMA) networks, Orthogonal FDMA (OFDMA) networks, and Single-Carrier FDMA (SC-FDMA) networks. )The internet. [0003] With the ever-increasing demand for global mobile communications, the frequency resources for wireless communications are becoming increasingly tight. Therefore, in addition to the above-mentioned t...

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): H04L27/26
CPCH04L27/2659
Inventor 不公告发明人
Owner 北京溢美四方软件技术有限公司
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