Wi-Fi Proxy Device Buffering Access Point Communications
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Solution Overview
Problem
Current Wi-Fi technologies face inefficiencies in power management, leading to increased battery consumption and reduced performance, especially in scenarios where devices need to constantly listen for communications, causing spurious wake-ups and decreased data throughput due to shared communication mediums and limited frequency availability.
Innovation Solution
Implementing a system where a secondary, wall-powered device acts as a proxy for a primary, battery-powered device, buffering communications from an access point and reducing the need for the primary device to constantly listen, thereby minimizing power consumption and maintaining connectivity while asleep.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a battery-powered device constantly listens for communications on Wi-Fi, then connectivity and data reception are maintained, but battery consumption increases significantly
Solution Approach 1:
A wall-powered proxy device is introduced as an intermediary between the access point and the battery-powered device. The proxy continuously monitors and buffers communications intended for the mobile device, then transfers them when the mobile device is ready to receive data. This eliminates the need for the battery-powered device to constantly listen, dramatically reducing its power consumption while maintaining connectivity.
2Area of stationary object
If Wi-Fi communications use a shared medium with multiple devices, then network coverage is extended, but data throughput decreases due to collisions and retransmissions
Solution Approach 1:
The system segments the communication path into two distinct channels: a wired connection between the proxy and access point, and a wireless connection between the proxy and mobile device. This segmentation isolates the mobile device from Wi-Fi medium collisions and retransmissions, allowing it to receive data efficiently through the proxy without being affected by shared medium contention.
3Reliability
If limited Wi-Fi frequencies are used to avoid interference, then signal quality is maintained, but the number of available communication channels is restricted
Solution Approach 1:
The wall-powered proxy acts as an intermediary that handles frequency channel management and interference avoidance. It receives communications from the access point on one frequency and can forward them to the mobile device on potentially different frequencies or through alternative paths, thereby expanding the effective frequency availability without compromising signal quality.
Data Source
AI summary
In example embodiments disclosed herein, a primary wireless device infrequently sends a ping to a secondary device to determine if there are any communications from an access point intended for the primary wireless device. The secondary device, ideally connected to wall power, is wirelessly connected to the access point, acting as a connected proxy so that the primary wireless device, typically battery powered, does not always have to be connected. In a situation in which an incoming communication is intended for the primary device, the secondary device receives the notification and buffers whatever is sent from the access point intended for the primary wireless device and acknowledges the receipt. Then, when the primary wireless device pings the secondary device, the secondary device sends the buffered communication to the primary wireless device. As far as the access point is concerned, it thinks it is communicating directly with primary wireless device.