Co-site Interference Reduction via Receive-Transmit Coordination
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Solution Overview
Problem
Co-site interference between radio transmitters and receivers in aircraft communication systems, particularly due to uncoordinated receive and transmit operations and frequency congestion, leads to interruptions and inefficient channel utilization.
Innovation Solution
A method and system that coordinate receive and transmit operations by detecting incomplete receive paths and delaying speech message transmissions or power amplifier activation to minimize interference, allowing for efficient channel use without altering existing infrastructure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If physical separation and shielding of transmit and receive antennas are employed, then co-site interference is reduced, but device complexity and space requirements increase
Solution Approach 1:
The system performs preliminary detection of receive path operations before initiating transmit operations. By checking whether a receive path is currently engaged and predicting potential interference, the system can delay or prevent transmit operations that would cause co-site interference, thereby resolving the contradiction without requiring physical separation or shielding
Solution Approach 2:
The system continuously monitors the status of receive paths and uses this feedback to control transmit operations. The coordinated management system receives feedback about ongoing receive operations and adjusts transmit timing accordingly, eliminating the need for physical isolation while maintaining low interference levels
2Productivity
If multiple voice communications are allowed on a single channel, then channel capacity increases, but co-site interference and congestion increase
Solution Approach 1:
The system dynamically manages channel access by coordinating transmit and receive operations in real-time. Instead of static channel allocation, the system adjusts transmit timing based on the dynamic state of receive operations, allowing multiple communications to share the channel efficiently while preventing interference through coordinated scheduling
Solution Approach 2:
The system performs preliminary checks to determine if a receive path is engaged before allowing transmit operations. By predicting potential interference in advance and delaying transmit operations when necessary, the system enables higher channel utilization while preventing congestion-related interference
3Adaptability or versatility
If independent federated communication subsystems are used, then system modularity increases, but coordination between receive and transmit operations decreases
Solution Approach 1:
The patent introduces a coordinated management system that acts as an intermediary between independent federated communication subsystems. This intermediary coordinates transmit and receive operations across the modular subsystems, enabling them to maintain their independence and modularity while preventing uncoordinated interference through centralized scheduling and control
Data Source
AI summary
The present invention is a method and system for managing a transmitter located in close proximity to a sensitive receiver. In an exemplary embodiment, the method may include recognizing incomplete receive operations on frequencies that may be affected by co-site transmit operations. Further, the method may include detecting the beginning of a speech message and delaying the speech message up to a selected maximum amount of time. The speech message may be delayed to correspond to required communications performance, allowing receive and transmit operations to be coordinated and thus, reducing the possibility of the receiver to be interrupted or affected by the transmitter operating on a relatively nearby frequency.