Satellite Interference Mitigation via GNSS Feedback
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Solution Overview
Problem
In satellite communication, interference between devices can occur when the GNSS downlink frequency band overlaps with the satellite uplink frequency band, preventing other devices from performing a GNSS position fix.
Innovation Solution
The implementation of electronic devices equipped with multiple antennas, receive and transmit circuitry, and processing circuitry that can detect interference and request nearby devices to adjust their transmission power or cease transmission to mitigate interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a device transmits on satellite uplink frequency band, then satellite communication capability is improved, but interference to other devices performing GNSS position fix occurs
Solution Approach 1:
The system implements feedback by having the processing circuitry receive an indication that interference is causing another device to fail to receive the location signal, then transmit a request to mitigate the interference. This closed-loop feedback mechanism allows the transmitting device to adjust its behavior based on the impact it has on other devices.
Solution Approach 2:
The processing circuitry acts as an intermediary by receiving interference failure indications from other devices and translating them into mitigation requests. This intermediary function coordinates between the transmitting device and the affected receiving device, enabling interference management without direct hardware modification.
2Productivity
If multiple devices transmit simultaneously on satellite uplink frequency band, then satellite communication productivity is improved, but interference between devices increases
Solution Approach 1:
The system applies dynamics by making the transmission characteristics adjustable based on real-time interference conditions. When interference is detected, the transmitting device dynamically modifies its transmission parameters (power, timing, or cessation) in response to mitigation requests from other devices, allowing the system to adapt between high productivity and low interference states.
Solution Approach 2:
The invention utilizes parameter changes by modifying transmission power or transmission timing based on interference conditions. The processing circuitry requests changes to transmission parameters when interference is detected, allowing the system to adjust operational parameters dynamically to balance productivity and interference mitigation.
Data Source
AI summary
This disclosure is directed to systems and methods for interference mitigation in satellite communication. For satellite communication, an electronic device may perform a GNSS position fix prior to establishing satellite communication. In some cases, a GNSS downlink frequency band may be close to a satellite uplink frequency band, and as a result a first device communicatively connecting to a satellite downlink frequency band may interfere with one or more other devices in close proximity attempting to connect to the GNSS uplink frequency band, and consequently the first device may prevent the one or more other devices from performing the GNSS position fix. Because of this, one electronic device may block satellite communication for multiple other electronic devices. This may be particularly relevant in situations involving large crowds (e.g., festivals, sporting events), during calamity events, and/or in outdoor scenarios (e.g., group hikes).