Dynamic Transmission Window Adjustment for Synchronization
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Solution Overview
Problem
Current Wi-Fi enabled devices face challenges in synchronizing timing for peer-to-peer connectivity, leading to inefficient synch frame transmissions and potential congestion, as devices randomly backoff before transmitting synch frames without accurate neighborhood density estimation.
Innovation Solution
Implementing synch logic in devices to dynamically adjust the transmission window (TW) based on detection of synch frame transmissions, increasing TW if a frame is detected and decreasing it upon successful transmission, thereby balancing power consumption and discovery timing without estimating neighborhood size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If devices transmit synch frames at each discovery window to ensure network synchronization, then synchronization reliability is improved, but network congestion and power consumption increase
Solution Approach 1:
The patent implements dynamic adjustment of transmission window size based on detected network conditions. Devices adaptively modify their transmission behavior by adjusting the window size parameter, transitioning from static periodic transmission to dynamic adaptive transmission that responds to real-time network state, thereby resolving the contradiction between reliable synchronization and power consumption.
Solution Approach 2:
The system employs feedback mechanisms where devices monitor synch frame transmissions from other devices and use this information to adjust their own transmission parameters. The transmission window size is modified based on detected network activity, creating a closed-loop control system that balances synchronization reliability with energy efficiency through continuous adaptation to network conditions.
2Object-generated harmful factors
If devices use random backoff before synch frame transmission to avoid congestion, then network congestion is reduced, but discovery timing delays increase
Solution Approach 1:
The patent replaces static random backoff with dynamic transmission window adjustment. Instead of using unpredictable random delays that cause timing uncertainty, devices adaptively adjust the transmission window size based on network conditions, creating a dynamic system that reduces congestion while maintaining more predictable and efficient discovery timing.
Solution Approach 2:
The system changes the transmission parameter (window size) based on detected network conditions rather than using fixed random backoff values. By adjusting this key parameter dynamically, the system optimizes the balance between avoiding congestion and minimizing discovery timing delays, achieving better performance than static random backoff mechanisms.
3Adaptability or versatility
If devices attempt synch frame transmission at every discovery window to join a synch network, then network discovery capability is improved, but power consumption and collision probability increase
Solution Approach 1:
The patent implements dynamic adaptation of transmission behavior through window size adjustment. New devices can still discover and join the network effectively by monitoring and adapting to the dynamic transmission pattern, while the overall system reduces power consumption by avoiding unnecessary transmissions when the window size indicates low network activity or high congestion risk.
4Reliability
If multiple devices transmit synch frames simultaneously to maintain network synchronization, then synchronization coverage is improved, but collision probability and transmission inefficiency increase
Solution Approach 1:
The system uses feedback from detected synch frame transmissions to adjust individual device transmission parameters. When devices detect other transmissions, they modify their window size accordingly, creating a self-regulating mechanism that maintains adequate synchronization coverage while reducing simultaneous transmissions and improving overall transmission efficiency through coordinated adaptation.
Data Source
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AI summary
Logic to "loosely" manage synch frame transmissions in a synch network via the devices synced to the network that implement the logic. Logic may distributedly adjust the frequency of attempting synch frame transmissions without estimating the size of the neighborhood. Logic in devices of a synch network to let each device maintain a Transmission Window (TW). Logic to determine the frequency of attempting synch frame transmissions based upon the TW. Logic to increase TW if the device detects a synch frame transmission. Logic to decrease TW if the device successfully transmits a synch frame. Logic to balance power consumption and discovery timing by adjusting the decrease in TW responsive to a synch transmission in relation to the increase in TW responsive to detection of a synch transmitted by another device.