Satellite Beam Frequency Reuse via Dynamic Cell Configuration
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Solution Overview
Problem
Current satellite communication networks face inefficiencies due to insufficient frequency bandwidth allocation, leading to inflexibility in cell dimensions and position, resulting in wasted frequency resources and inability to adapt to varying traffic demands.
Innovation Solution
A device for multiple-beam communication satellites that dynamically defines and configures cells with chosen dimensions and positions, using active-type antennas and processing means to allocate specific carrier frequencies and bandwidths based on requirements, allowing for flexible frequency reuse at the individual carrier level.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If frequency re-use technique with fixed regular cell patterns is applied to increase transmission capabilities, then frequency resources can be multiplied, but flexibility is lost and frequency waste occurs due to inability to adapt to varying traffic demands
Solution Approach 1:
The patent implements dynamic cell configuration where the control means can define cells of variable dimensions and positions, and dynamically assign sub-bandwidths based on real-time traffic requirements. This allows the system to adapt frequency allocation to varying traffic demands while maintaining high transmission capabilities through frequency re-use.
Solution Approach 2:
The system changes the parameters of cell dimensions, positions, and sub-bandwidth allocations dynamically based on traffic conditions. The control means adjusts these parameters to optimize frequency utilization, allowing cells to expand or contract in size and frequency allocation based on demand patterns.
2Productivity
If fixed regular cell patterns are used for frequency re-use, then frequency resources can be multiplied, but frequency waste occurs in cells with below-average traffic while cells with above-average traffic cannot obtain additional resources
Solution Approach 1:
The control means dynamically adjusts sub-bandwidth allocation parameters based on actual traffic measurements. Cells experiencing high traffic receive expanded frequency allocations, while cells with low traffic reduce their allocations, eliminating frequency waste while maintaining the ability to multiply resources through frequency re-use in the overall system.
Solution Approach 2:
The system incorporates feedback mechanisms where traffic conditions are continuously monitored and used to adjust frequency allocations. The control means receives information about actual traffic patterns and modifies cell configurations and sub-bandwidth assignments accordingly, ensuring optimal frequency utilization without waste.
3Productivity
If identical sub-bandwidths are assigned to isolated cells for frequency re-use, then frequency resources can be multiplied, but any modification to cell dimensions or sub-bandwidth width disrupts the entire frequency allocation system
Solution Approach 1:
The system transitions from static identical sub-bandwidth assignments to dynamic variable sub-bandwidth allocations. The control means independently configures each cell's frequency parameters based on local requirements, allowing modifications without disrupting the entire system while maintaining frequency re-use benefits through coordinated allocation.
Data Source
AI summary
A device (D) is dedicated to transmitting and/or receiving signals representative of data in a communication satellite (SAT) having a fixed frequency bandwidth. This device (D) comprises transmission and/or reception means (MER) responsible for sending and/or receiving signals in multiple beams, and control means (MC) responsible for defining a chosen number of cells of chosen dimensions and positions, and configuring the transmission and/or reception means (MER) so as to define beams each associated with at least one of the defined cells, with a chosen carrier frequency based on the requirements of each of the cells and taking into account the frequency bandwidth available on the satellite (SAT).