Adaptive Mode Optimizer Frequency Shifting for Interference
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Solution Overview
Problem
Fixed frequency band systems are not suitable for all environments due to interference, regulatory compliance issues, and varying propagation characteristics, requiring multiple or more expensive systems to accommodate different settings and jurisdictions.
Innovation Solution
A frequency band conversion circuit that connects to the antenna port of a transceiver to shift the native center frequency and allows for the use of different antennas, leveraging various frequency propagation characteristics with adaptable antenna shapes and formats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed frequency band system is used, then the device is simple and cost-effective, but it cannot adapt to different environments and regulatory requirements
Solution Approach 1:
A frequency band conversion circuit is introduced as an intermediary device between the fixed-frequency transceiver and the antenna. This converter shifts the signal frequency to match different operating bands (e.g., 700MHz, 850MHz, 1.9GHz, 2.1GHz) without modifying the transceiver itself, enabling environmental adaptability while keeping the core device simple.
Solution Approach 2:
The system achieves multi-functionality by combining a universal frequency band conversion circuit with a fixed transceiver. The converter can operate across multiple frequency bands, allowing a single device configuration to serve multiple environmental requirements and regulatory jurisdictions without needing separate transceivers for each band.
2Adaptability or versatility
If multiple transceivers with different frequency bands are acquired to satisfy different requirements, then adaptability improves, but cost and device complexity increase
Solution Approach 1:
Instead of acquiring multiple separate transceivers, the invention uses a single transceiver combined with a multi-band frequency conversion circuit. This universal approach allows one physical system to comply with regulations across different jurisdictions by switching frequency bands through the converter, eliminating the need for multiple systems.
Solution Approach 2:
The invention merges the fixed transceiver with the frequency band conversion circuit into a single integrated system. This combination achieves the functionality of multiple separate transceivers while reducing the total number of devices needed, lowering both cost and complexity.
3Reliability
If higher power systems are purchased to satisfy site requirements, then transmission capability improves, but cost increases
Solution Approach 1:
The system improves transmission capability not by increasing power, but by changing the frequency parameter. The frequency band conversion circuit shifts signals to optimal bands (e.g., lower frequencies like 700MHz for penetration through obstacles, or higher frequencies for line-of-sight transmission), achieving better signal transmission without additional power expenditure.
Data Source
AI summary
A mode shifter connects via an input port to an antenna port of a transceiver. A port signal analyzer monitors the signal at the input port and informs a signal switch whether the signal power exceeds a threshold value. When the signal power does not exceed the threshold value, the signal switch connects the input port (and consequently the antenna port of the transceiver) to a receive path comprising a receive signal processor, an antenna selection processor, and an antenna port. When the signal exceeds the threshold value, the signal switch connects the input port (and consequently the antenna port of the transceiver) to a transmit path comprising a transmit signal processor, the antenna selection processor, and an antenna port.