Optical Transmission Device Beam-Pointing Optimization
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Solution Overview
Problem
In wireless optical communication systems, optimizing beam-pointing is crucial to maximize the signal-to-noise ratio (SNR) at reception terminals, especially when the number of transmission terminals differs from the number of reception terminals.
Innovation Solution
The method involves an optical transmission device receiving feedback information from an optical reception device about the power of received light and the coordinate values of reception terminals. Using this information, the transmission device determines the coordinate values that maximize the SNR and adjusts the beam direction accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam-pointing is optimized to maximize SNR at reception terminals, then communication performance is improved, but system complexity increases due to coordinate calculation and feedback mechanisms
Solution Approach 1:
The patent implements a feedback mechanism where reception terminals send coordinate information and power of received light back to transmission terminals. This feedback enables the transmission terminal to calculate optimal beam-pointing coordinates iteratively, resolving the contradiction by using information feedback to achieve SNR maximization without requiring complex pre-computation or manual configuration
Solution Approach 2:
The patent performs preliminary coordinate calculations and beam-direction adjustments before actual data transmission begins. By pre-optimizing beam-pointing coordinates based on initial feedback, the system establishes optimal transmission paths in advance, reducing real-time complexity during active communication while maintaining high SNR performance
2Adaptability or versatility
If the number of transmission terminals differs from the number of reception terminals, then system flexibility is improved, but beam-pointing optimization becomes more difficult
Solution Approach 1:
The patent creates a universal beam-pointing optimization method that works regardless of whether transmission terminals equal reception terminals. The coordinate calculation algorithm and feedback mechanism are designed to handle asymmetric configurations universally, allowing the system to adapt to any terminal distribution scenario without requiring separate optimization strategies for different configurations
Solution Approach 2:
The patent divides the optimization problem into individual terminal-level coordinate calculations rather than treating the entire system as a single optimization unit. Each transmission terminal independently calculates optimal coordinates based on feedback from reception terminals, breaking down the complex asymmetric optimization problem into manageable segments that can be solved independently and then combined
Data Source
AI summary
An embodiment of the present disclosure relates to a method for optimizing beam-pointing in a wireless optical communication system may comprise receiving, from an optical reception device by an optical transmission device, information related to power of a light, which is transmitted from a specific transmission terminal among one or more transmission terminals of the optical transmission device and is received by one or more reception terminals of the optical reception device on the basis of coordinate values associated with the one or more reception terminals; determining, by the optical transmission device, coordinate values which maximize a signal-to-noise ratio on the basis of the determined power of the received light; and transmitting a beam from the specific transmission terminal toward the optical reception device by the optical transmission device on the basis of the determined coordinate values.