Wi-Fi Power And Receive Attenuation In Dense RF Environments
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Solution Overview
Problem
Network devices in high-density environments, such as multi-dwelling units, experience interference and excessive channel demand due to competing wireless signals, leading to network congestion and poor performance.
Innovation Solution
Network devices determine signal information to calculate attenuation values, adjusting transmission power and attenuating receiving paths based on signal strength distributions to minimize interference and improve downlink performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If network devices transmit at high power to ensure coverage, then signal strength is improved, but interference with other network devices increases
Solution Approach 1:
The patent implements dynamic transmit power adjustment where each network device continuously monitors the received signal strength from other devices and adapts its own transmit power accordingly. This dynamic approach allows the system to optimize signal strength while minimizing interference in real-time, resolving the contradiction between transmission power and interference generation.
Solution Approach 2:
The patent employs feedback mechanisms where network devices receive signal strength information from neighboring devices and use this feedback to adjust their transmission parameters. This closed-loop control enables each device to modulate its transmit power based on actual channel conditions, achieving optimal signal strength without causing excessive interference to other devices.
2Area of stationary object
If multiple network devices operate on the same channel, then network coverage is expanded, but channel congestion increases
Solution Approach 1:
The patent implements dynamic channel selection and power adjustment where network devices continuously monitor channel conditions and adapt their operating parameters. When multiple devices are present, the system dynamically adjusts transmit power and selects optimal channels, allowing expanded network coverage while managing channel congestion through real-time adaptation rather than static operation.
Solution Approach 2:
The patent changes operational parameters such as transmit power, transmission time, and channel selection based on the number of active network devices. By monitoring device density and adjusting parameters accordingly, the system enables multiple devices to operate simultaneously with reduced congestion, balancing network coverage expansion with channel utilization efficiency.
3Productivity
If network devices attenuate receiving paths to reduce interference, then channel congestion is reduced, but signal strength for legitimate communications decreases
Solution Approach 1:
The patent implements dynamic attenuation control where network devices adjust the attenuation level on receiving paths based on real-time channel conditions and interference levels. Rather than applying fixed attenuation, the system dynamically modulates the attenuation to minimize the impact on legitimate communications while effectively suppressing interfering signals, thus resolving the contradiction between congestion reduction and signal strength preservation.
Solution Approach 2:
The patent applies different attenuation levels to different receiving paths depending on the specific interference conditions and signal requirements of each channel. By implementing local quality control, the system selectively attenuates only the necessary interference while preserving signal strength for legitimate communications, avoiding uniform attenuation that would degrade overall system performance.
Data Source
AI summary
Systems and methods for managing a network are disclosed. One method can comprise determining signal information relating to a first network device such as an access point. The signal information may be associated with signal characteristics such as a radio frequency signal strength over a communication channel. An attenuation value for one or more receiving paths of the first network device may be determined using the signal information. The one or more receiving paths of the first network device may be attenuated based on the determined attenuation value. A transmission power of the first network device may be configured based on the determined attenuation value.