Access Point Signal Delay for Wireless Mesh Pollution
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Solution Overview
Problem
Wireless communication systems face signal pollution and reduced system capacity due to continuous transmission of acquisition pilots by multiple access points, especially in wireless mesh networks with few user devices, which degrades performance and increases overhead.
Innovation Solution
User devices initiate signal requests to access points, which respond with signals only during limited periods, and access points delay or cancel transmissions based on received signal strength and response from other access points to minimize signal pollution and optimize access point selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple access points continuously transmit acquisition pilots, then user devices can maintain reliable connection, but signal pollution increases and system capacity decreases
Solution Approach 1:
The patent implements periodic action by transitioning from continuous pilot transmission to on-demand transmission triggered by user device requests. Access points transmit signals only during limited periods when needed, rather than continuously, thereby reducing signal pollution while maintaining connection reliability when required.
Solution Approach 2:
The patent extracts the harmful continuous transmission component and replaces it with targeted on-demand transmission. By removing the continuous pilot transmission and keeping only the necessary signal responses to user requests, the system reduces signal pollution while preserving essential communication functionality.
2Productivity
If access points transmit signals in response to user requests, then system capacity increases, but signal pollution occurs if multiple access points transmit simultaneously
Solution Approach 1:
The patent implements feedback mechanisms where access points monitor received signal strength and responses from other access points. This feedback allows access points to adjust their transmission behavior, delaying or canceling transmissions when appropriate, thereby reducing signal pollution while maintaining system capacity through coordinated on-demand transmission.
Solution Approach 2:
The patent applies preliminary action by having access points evaluate signal strength and potential conflicts before transmitting responses. Access points perform preliminary assessments of the signal request strength and check for competing transmissions, making informed decisions about whether to transmit, thereby preventing signal pollution before it occurs.
3Measurement precision
If access points delay signal transmission based on signal strength, then the strongest signal is selected, but transmission time increases
Solution Approach 1:
The patent changes the parameter of transmission timing based on signal strength parameters. Access points use the received signal strength as a parameter to determine delay duration, creating a proportional relationship where stronger signals receive shorter delays. This resolves the contradiction by making the delay adaptive rather than fixed, ensuring accurate strongest-signal selection while minimizing unnecessary time loss.
Data Source
AI summary
Apparatuses and methodologies are described that mitigate signal pollution in a wireless communication system. According to one aspect, user devices can request signals for use in access point selection. Access points can be selected based upon the received strength of their signals. In one aspect, access points can delay the transmission of signals based upon the strength of the received request. In addition, if sufficient access points respond during the delay, an access point can refrain from transmitting signals in response to signal requests, further reducing signal pollution.