Dynamic Energy Detection Threshold for Unlicensed Spectrum Access
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Solution Overview
Problem
Current radio resource management systems using a single preset energy detection threshold for unlicensed spectrum access lead to inefficient spectrum utilization and increased risk of data transmission collisions due to changing spectrum conditions.
Innovation Solution
A transceiving apparatus and method that dynamically modifies the energy detection threshold based on feedback information, such as signal strength and channel conditions, to determine whether to access the unlicensed spectrum, thereby optimizing spectrum utilization and avoiding collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single preset energy detection threshold is used for unlicensed spectrum access, then the device complexity is reduced and operation is simplified, but the spectrum utilization efficiency deteriorates and data transmission collisions increase
Solution Approach 1:
The patent applies dynamics by transforming the static energy detection threshold into a dynamic parameter that automatically adjusts according to channel conditions. The threshold is no longer fixed but varies based on detected signal strength and channel state, allowing the system to adapt to changing spectrum environments and improve utilization efficiency while maintaining operational simplicity.
Solution Approach 2:
The patent implements parameter changes by modifying the energy detection threshold value based on channel conditions. Instead of using a single preset threshold, the system changes the threshold parameter dynamically according to detected signal strength and channel state, enabling efficient spectrum access decisions across varying environmental conditions.
2Ease of operation
If a single preset energy detection threshold is used for unlicensed spectrum access, then the ease of operation is improved, but the reliability of data transmission deteriorates due to increased collision risk
Solution Approach 1:
The patent applies self-service by enabling the system to automatically adjust its own energy detection threshold without external intervention. The transceiving device monitors channel conditions and autonomously modifies the threshold parameter, eliminating the need for manual configuration while improving transmission reliability through adaptive collision avoidance.
Solution Approach 2:
The patent implements feedback by using detected channel conditions and signal strength information to continuously adjust the energy detection threshold. The system monitors the spectrum environment and feeds this information back into the threshold adjustment mechanism, creating a closed-loop control system that improves transmission reliability while maintaining ease of operation.
3Productivity
If the energy detection threshold is dynamically adjusted based on channel conditions, then the spectrum utilization efficiency is improved and collisions are reduced, but the device complexity increases
Solution Approach 1:
The patent resolves the complexity issue by implementing a dynamic threshold adjustment mechanism that responds automatically to channel conditions. The system uses real-time signal strength detection and channel state information to adjust the threshold, creating an adaptive system that improves spectrum utilization without requiring complex manual configuration or external control.
Solution Approach 2:
The patent manages complexity through parameter changes by modifying the energy detection threshold based on detected channel conditions. The system changes the threshold parameter dynamically using straightforward comparisons between detected signal strength and threshold values, enabling efficient spectrum access with a relatively simple adjustment mechanism.
4Adaptability or versatility
If frequent threshold modifications are performed to optimize spectrum access, then the adaptability to channel changes is improved, but the power consumption increases
Solution Approach 1:
The patent applies periodic action by adjusting the energy detection threshold at specific intervals or under specific triggering conditions rather than continuously. The system performs threshold modifications periodically or when channel conditions change significantly, maintaining adaptability to channel variations while reducing unnecessary processing and power consumption during stable conditions.
Data Source
AI summary
A transceiving apparatus and a spectrum access controlling method thereof are provided. The transceiving apparatus may utilize an unlicensed spectrum. In the method, feedback information related to accessing the unlicensed spectrum is received. An energy detection threshold is modified according to the feedback information. Whether to access the unlicensed spectrum is determined according to the modified energy detection threshold. If a signal strength detected on the unlicensed spectrum is greater than the energy detection threshold, an access to the unlicensed spectrum is disabled. If the signal strength detected on the unlicensed spectrum is not greater than the energy detection threshold, the access to the unlicensed spectrum is performed. Accordingly, the chance that a data transmission collision occurs is decreased, and a utilization rate of the unlicensed spectrum is improved.