Distributed Wi-Fi Access Point Topology for Interference Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional Wi-Fi systems face challenges with interference, congestion, and coverage issues, particularly in residential environments, due to overlapping networks, signal attenuation, and the limitations of traditional mesh or repeater systems which often reduce network capacity and increase interference.
Innovation Solution
A distributed Wi-Fi system with multiple access points that communicate via cloud-based control, optimizing topology and configuration in real-time to minimize interference and congestion, using different channels for backhaul and client links, and employing a tree topology with a single data path to ensure robust and reliable connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a single powerful access point is used to improve coverage and signal strength, then signal strength is improved, but interference between networks increases and the system cannot transmit through additional walls
Solution Approach 1:
The system divides the coverage area into multiple zones served by different access points, each transmitting at lower power. This segmentation reduces individual AP interference while collectively covering the entire area, solving the contradiction between signal strength and interference.
Solution Approach 2:
The patent introduces a new dimension of network architecture by deploying multiple access points in a coordinated mesh topology rather than relying on a single high-power AP. This dimensional change from vertical power scaling to horizontal spatial distribution resolves the wall penetration and interference issues.
2Area of stationary object
If repeaters or mesh Wi-Fi devices are used to improve coverage, then coverage is improved, but network capacity is reduced and airtime is consumed
Solution Approach 1:
The system enables simultaneous data transmission across multiple parallel paths in the mesh network, ensuring continuous useful action. Unlike traditional repeaters that sequentially relay data, the coordinated APs transmit concurrently on different channels, maintaining network capacity while extending coverage.
Solution Approach 2:
The patent introduces a cloud-based coordinator as an intermediary that manages the mesh network, optimizing routing and channel allocation. This intermediary enables efficient use of network resources, allowing coverage extension without the capacity loss typical of traditional repeater systems.
3Reliability
If transmit power is increased to improve coverage through walls, then signal penetration is improved, but the difficulty and expense grows exponentially and interference increases
Solution Approach 1:
Instead of one AP attempting to penetrate multiple walls with high power, the system segments the signal path so that multiple APs each transmit through fewer obstacles. This reduces the complexity of achieving reliable penetration while maintaining signal strength through coordinated low-power transmissions.
Solution Approach 2:
The patent merges the capabilities of multiple low-power access points to achieve the coverage effect of a single high-power AP. By combining their transmissions in a coordinated mesh topology, the system achieves reliable wall penetration without the exponential complexity and interference of high-power transmission.
4Area of stationary object
If multiple Wi-Fi networks overlap to provide coverage, then coverage is improved, but interference between networks increases
Solution Approach 1:
The system assigns different local qualities to different parts of the network by allocating specific frequency channels to different APs and their surrounding areas. This local differentiation reduces interference between overlapping coverage zones while maintaining comprehensive area coverage.
Solution Approach 2:
The patent dynamically changes network parameters such as operating channels and transmit power levels based on local conditions. This parameter adaptation allows multiple networks to coexist with reduced interference, as each AP adjusts its parameters to minimize conflict with neighboring networks while maintaining coverage.
Data Source
AI summary
Systems and methods for setting up an access point in a Wi-Fi system, subsequent to booting up, determining whether the access point is a gateway node with a connection to a modem/router or a Wi-Fi node without a connection to the modem/router; connecting to a cloud configuration service when the access point is a gateway node for obtaining configuration parameters of the Wi-Fi system; and connecting to a predefined Service Set Identifier (SSID) when the access point is a Wi-Fi node for obtaining the configuration parameters from the gateway node.