Wireless Coexistence Mechanism Selection Based on Signal Quality
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Solution Overview
Problem
Existing wireless communication systems face interference issues between Bluetooth and wireless LAN devices operating on the same 2.4 GHz frequency band, leading to reduced transmission rates and instability in coexistence mechanisms.
Innovation Solution
A wireless communication system that determines the target coexistence mechanism based on signal receiving quality by using a determining device to assess the signal-to-noise ratio and select from candidate mechanisms like AFH, TDM, or hybrid coexistence to maintain stable transmission rates for both devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional coexistence mechanisms (AFH, TDM, channel skipping) are used to reduce interference between Bluetooth and wireless LAN devices, then interference is reduced, but transmission rate is sacrificed or system stability time increases
Solution Approach 1:
The patent implements dynamic selection of coexistence mechanisms based on real-time signal quality detection. The system monitors signal-to-noise ratio and automatically switches between different coexistence mechanisms (AFH, TDM, channel skipping) depending on current interference conditions, thereby optimizing both interference reduction and transmission rate maintenance without fixed sacrifice of one for the other
Solution Approach 2:
The system changes operational parameters by selecting different coexistence mechanisms based on detected signal quality. When signal quality is good, the system may use less restrictive mechanisms to maintain higher transmission rates. When interference increases, it switches to more protective mechanisms, dynamically adjusting the balance between interference reduction and data throughput
2Object-affected harmful factors
If conventional coexistence mechanisms are used to reduce interference between Bluetooth and wireless LAN devices, then interference is reduced, but system stability time increases
Solution Approach 1:
The system performs preliminary signal quality detection and proactively selects appropriate coexistence mechanisms before interference problems manifest. By continuously monitoring signal conditions and pre-configuring suitable coexistence strategies, the system avoids the need for lengthy stabilization periods that would otherwise be required when interference occurs
Solution Approach 2:
The patent implements a feedback loop where signal quality is continuously monitored and used to adjust coexistence mechanism selection. This closed-loop control allows the system to quickly adapt to changing interference conditions and maintain stability without requiring extended stabilization times associated with conventional fixed mechanisms
3Ease of manufacture
If fixed coexistence mechanisms are used, then implementation is simple, but adaptability to different signal conditions is poor
Solution Approach 1:
The patent creates a universal coexistence management system that can handle multiple different signal conditions and interference scenarios through a single adaptive framework. The system incorporates multiple coexistence mechanisms (AFH, TDM, channel skipping) within one unified structure that automatically selects the appropriate mechanism based on current conditions, providing both implementation simplicity and broad adaptability
Data Source
AI summary
A wireless communication system includes a first wireless device, a second wireless device, a determining device and an executing unit. The first wireless device is arranged for receiving a first signal, and the second wireless device is arranged for transmitting a second signal, where the first wireless device and the second wireless device conform to different communication standards, respectively. The determining device may determine a signal quality of the first signal received by the first wireless device, and accordingly generates a determining result. The executing unit refers to the determining result to select a target coexistence mechanism, which is shared by the first and second wireless devices, from a plurality of candidate coexistence mechanisms.