Beacon Detection for Satellite Spectrum Utilization
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Solution Overview
Problem
Current satellite service protection schemes are inefficient due to conservative interference thresholds and inaccurate propagation models, leading to over-protection of FSS sites and underutilization of the C-band downlink spectrum, as they lack real-time monitoring and reporting of operating parameters and actual path loss measurements.
Innovation Solution
A measurement-based protection system using beacon transmitters and detectors to create a closed loop for accurate path loss determination and dynamic resource allocation, allowing for real-time interference management and optimization of spectrum usage without impairing satellite receiver protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conservative interference thresholds and inaccurate propagation models are used to protect FSS sites, then satellite receiver protection is ensured, but spectrum utilization is reduced and over-protection occurs
Solution Approach 1:
The patent implements a feedback mechanism where beacon detectors at FSS sites continuously monitor and report received beacon signal power levels to a central server. This real-time feedback enables dynamic adjustment of terrestrial transmitter parameters, replacing static conservative thresholds with actual measured data, thus optimizing spectrum utilization while maintaining reliable satellite protection.
Solution Approach 2:
The system transitions from static interference thresholds to dynamic, real-time monitoring and adjustment of protection parameters. Beacon detectors continuously measure actual path loss conditions, and the central server dynamically updates transmitter power and frequency allocations based on current environmental conditions, enabling adaptive spectrum sharing that maximizes utilization while ensuring protection.
2Measurement precision
If real-time beacon detection and reporting systems are implemented, then accurate path loss measurement and dynamic resource allocation are achieved, but device complexity increases
Solution Approach 1:
The patent introduces beacon transmitters and beacon detectors as intermediary components that simplify the measurement process. Instead of complex direct measurements between terrestrial transmitters and satellite receivers, the beacon system acts as an intermediary that emits detectable signals, allowing FSS sites to report received power levels, which the central server uses to calculate accurate path loss values without requiring complex measurement equipment at each site.
3Productivity
If measurement-based protection systems with beacon detectors are deployed at FSS sites, then unnecessary protection is reduced and spectrum usage is optimized, but initial system setup and infrastructure complexity increase
Solution Approach 1:
The beacon detectors serve multiple functions: they detect beacon signals from terrestrial transmitters, measure received signal power levels, identify specific transmitters through unique beacon identifiers, and report measurements to the central server. This multi-functionality reduces the need for separate specialized equipment at each FSS site, simplifying infrastructure while enabling comprehensive real-time monitoring and optimization of spectrum usage.
Data Source
AI summary
A communication system includes an earth station configured to receive a downlink transmission from a satellite and transmit an uplink transmission to the satellite. The communication system further includes a server in operable communication with the earth station, a beacon detector in operable communication with the server, an access point configured to operate within a proximity of the earth station, and a beacon transmitter disposed within close proximity to the access point. The beacon transmitter is configured to transmit a beacon signal to one or more of the server and the beacon detector. The beacon signal uniquely identifies the access point. The server is configured to implement a measurement-based protection scheme with respect to at least one of the downlink transmission and the uplink transmission.