Unlock instant, AI-driven research and patent intelligence for your innovation.

Method, device and system for signal synchronization of satellite communication system

A satellite communication system and signal synchronization technology, applied in the field of satellite communication, can solve problems such as increasing the complexity of satellite communication system design, and achieve the effect of reducing complexity

Active Publication Date: 2017-12-29
CHINA ELECTRONICS TECH GRP NO 7 RES INST
View PDF13 Cites 39 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a signal synchronization method, device and system for a satellite communication system for the problem that the signal synchronization method of the traditional TtT single-hop relay mode increases the complexity of the satellite communication system design

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, device and system for signal synchronization of satellite communication system
  • Method, device and system for signal synchronization of satellite communication system
  • Method, device and system for signal synchronization of satellite communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and do not limit the protection scope of the present invention.

[0040] See figure 1 Shown is a schematic flowchart of a signal synchronization method of a satellite communication system according to an embodiment of the present invention. The signal synchronization method of the satellite communication system in this embodiment includes the following steps:

[0041] Step S110: Obtain the first transmission delay of the feeder link of the satellite communication system, and acquire the second transmission delay of the user link of the satellite communication system; where the feeder link is between the ground gateway and the satellit...

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 present invention relates to a method, a device and a system for signal synchronization of a satellite communication system. The method comprises: obtaining the first transmission delay of the feed link of a satellite communication system and the second transmission delay of the user link of the satellite communication system, obtaining a time sequence regulation value according to the difference of the first transmission delay and the second transmission delay, transmitting the time sequence regulation value to a communication terminal, and regulating a signal emission time sequence according to the time sequence regulation value through the communication terminal. A LTE downlink transmission channel is ground gateway station-satellite-communication terminal, the TtT uplink transmission channel of the communication terminal is communication terminal-satellite, and for a receiver of the satellite after regulation, the subframe boundaries of the TtT uplink transmission and the LTE downlink transmission are aligned to satisfy the signal synchronization requirement of the TtT and LTE transmission modes with no need for improvement of a TtT physical layer so as to reduce the complexity of the satellite communication system design while realizing signal synchronization.

Description

Technical field [0001] The present invention relates to the technical field of satellite communication, in particular to a signal synchronization method, device and system of a satellite communication system. Background technique [0002] The mobile communication system based on the geosynchronous orbit satellite (hereinafter referred to as the satellite communication system) has the incomparable wide coverage characteristics of the ground mobile communication system, but the propagation delay far higher than the ground mobile communication system also brings many challenges to the system design . Especially for voice services with high real-time requirements, the design of the satellite communication system needs to consider as much as possible to minimize the negative impact of the long-delayed voice services of the satellite communication channel. [0003] In the satellite communication system, each wireless node relies on satellite relay to communicate. In order to reduce the ...

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): H04B7/185H04W56/00H04J3/06
CPCH04B7/18513H04B7/18582H04J3/0682H04W56/0045
Inventor 刘为温文坤张景闵铁锐
Owner CHINA ELECTRONICS TECH GRP NO 7 RES INST