Dynamic Wireless Access Point Power Control
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Solution Overview
Problem
Conventional wireless networks transmit at maximum power levels, leading to lower signal-to-noise ratios and interference with neighboring stations, resulting in inefficient use of the wireless spectrum due to unnecessary high power levels.
Innovation Solution
A method where a primary wireless access point monitors nearby stations, performs a power transmit test by broadcasting communications at different levels, and adjusts its power output based on feedback from neighboring access points to minimize interference while maintaining sufficient signal strength for its own devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless access points transmit at maximum power levels, then signal coverage and quality are improved, but wireless interference and noise increase for neighboring stations
Solution Approach 1:
The patent implements dynamic transmit power adjustment by continuously monitoring received signal strength indicators (RSSI) from neighboring access points and adapting the transmit power level accordingly. The system transitions from static maximum power transmission to dynamic power control, where the transmit power is adjusted in real-time based on environmental conditions and neighboring station signals, thereby reducing interference while maintaining adequate coverage.
Solution Approach 2:
The patent employs feedback mechanisms where wireless access points monitor the RSSI of received communications from neighboring stations and use this information to adjust their own transmit power levels. This closed-loop control system allows each access point to respond to changes in the wireless environment, reducing interference to neighbors while maintaining sufficient signal strength for client devices.
2Reliability
If wireless access points transmit at maximum power levels, then communication quality for connected devices is maintained, but efficient use of wireless spectrum is reduced
Solution Approach 1:
The patent changes the transmit power parameter dynamically based on monitored RSSI values from neighboring access points. By adjusting this critical parameter in response to environmental conditions, the system optimizes the balance between maintaining communication quality for connected devices and improving overall spectrum efficiency through reduced unnecessary transmission power.
3Illumination intensity
If wireless access points transmit at high power levels, then signal strength is sufficient, but signal-to-noise ratio for other wireless stations deteriorates
Solution Approach 1:
The system dynamically adjusts transmit power based on real-time monitoring of neighboring station RSSI, transitioning from static high-power transmission to adaptive power control. This allows the system to maintain adequate signal strength for clients while improving the signal-to-noise ratio for neighboring stations by reducing unnecessary high-power transmissions.
Solution Approach 2:
The patent uses feedback from monitored RSSI values of neighboring access points to adjust transmit power levels. This feedback loop enables the system to maintain sufficient signal strength for connected devices while improving the signal-to-noise ratio in the overall wireless environment by reducing interference to neighboring stations.
Data Source
AI summary
To reduce wireless interference (noise) in a network environment, a management resource communicates a notification to multiple wireless access points. The notification indicates a wireless power transmit test to be performed with respect to the primary wireless access point in a vicinity of the multiple wireless access points. In accordance with the wireless power transmit test, the primary wireless access point transmits multiple test communications at different wireless power levels from the primary wireless access point to the multiple wireless access points. The multiple wireless access points generate feedback based on their ability to receive the test communications. The feedback indicates wireless power levels at which the multiple wireless access points receive the test communications at different power levels from the primary wireless access point. Based on feedback, a controller adjusts its transmit power level of the primary wireless access point to reduce its interference with other wireless access points.