Satellite Signal Relay System for Base Station Synchronization

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Solution Overview

Problem

The increasing number of mobile communication base stations and the need for satellite signals for synchronization lead to higher construction costs and reduced spatial and installation efficiency, with potential service failures due to environmental factors or jamming.

Innovation Solution

A satellite signal relay system comprising remote units that convert analog satellite signals to digital, generate characteristic signals, and create transmission frames, which are then relayed through an optical medium to a central unit for conversion back to analog signals, allowing for selective output and delay compensation, thereby eliminating the need for dedicated antennas at each baseband unit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If each baseband unit is provided with a dedicated antenna for receiving satellite signals, then synchronization reliability is improved, but construction cost increases and spatial efficiency decreases

Engineering Contradiction:

Improvesynchronization reliabilityVSAvoidconstruction cost

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the satellite signal receiving function into a single centralized antenna system served by multiple remote units, eliminating the need for separate antennas at each baseband unit. This merging approach maintains synchronization reliability while reducing construction cost and spatial requirements.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent introduces a remote unit as an intermediary device that receives the satellite signal through a centralized antenna and distributes it to multiple baseband units. This intermediary approach allows one antenna to serve multiple purposes, resolving the contradiction between reliability and cost.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If each baseband unit is provided with a dedicated antenna for receiving satellite signals, then synchronization reliability is improved, but space utilization efficiency decreases

Engineering Contradiction:

Improvesynchronization reliabilityVSAvoidspace utilization efficiency

Core Design Contradiction:

ReliabilityVSArea of stationary object

Solution Approach 1:

The patent merges multiple satellite signal receiving functions into a single centralized antenna system, significantly reducing the total space required for installation while maintaining synchronization reliability across all baseband units.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The centralized antenna system serves multiple baseband units simultaneously, making the antenna system universal rather than dedicated to a single unit. This multi-functionality improves space utilization efficiency while preserving synchronization reliability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Ease of operation

If baseband units are centrally installed in the central office, then management efficiency is improved, but the ability to receive satellite signals is reduced due to installation environment constraints

Engineering Contradiction:

Improvemanagement efficiencyVSAvoidsatellite signal reception capability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent segments the base station into remote units deployed at remote sites with good satellite signal reception conditions and a central unit in the central office for management functions. This segmentation allows each component to operate in its optimal environment while maintaining overall system reliability and management efficiency.

Inventive Principle:

Principle #1Segmentation

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution reduces construction costs, enhances spatial and installation efficiency, and prevents service failures by ensuring stable satellite signal synchronization, improving overall base station reliability.

Implementation Method 1

convert the analog satellite signal into a digital satellite signal

Methodology Applied

Scientific EffectAnalog-to-digital conversion:

Implementation Method 2

convert optical transmission frames received from the plurality of remote units into transmission frames through an optical transmission medium

Methodology Applied

Scientific EffectOptical-to-electrical conversion:

Implementation Method 3

perform low-noise amplification on the analog satellite signal

Methodology Applied

Scientific EffectLow-noise amplification:

Implementation Method 4

frequency down-convert the low-noise amplified analog satellite signal

Methodology Applied

Scientific EffectFrequency down-conversion:

Data Source

PatentUS11438060B2Satellite signal relay system

Publication Date: 2022.09.06 SOLID

AI summary

A satellite signal relay system according to an embodiment of the inventive concept includes: a plurality of remote units configured to receive an analog satellite signal, to convert the analog satellite signal into a digital satellite signal, to generate a characteristic signal for the analog satellite signal, to generate a transmission frame based on the digital satellite signal and the characteristic signal, and to convert the transmission frame into an optical transmission frame; and a central unit configured to convert optical transmission frames received from the plurality of remote units into transmission frames through an optical transmission medium, respectively, to extract a digital satellite signal and a characteristic signal from each of the converted transmission frames, and to convert any one of the extracted digital satellite signals into an analog satellite signal based on the extracted characteristics signals.