Adjustable Wireless Leak Guard for Power-Save Packet Loss
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Solution Overview
Problem
Wireless communication devices face increased power consumption when not actively transmitting or receiving due to inefficient power save modes, leading to packet loss and reduced throughput.
Innovation Solution
Implementing an adjustable 'leak guard' mechanism that delays the entry into power save mode based on previous communication history to minimize packet loss and optimize power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wireless communication device delays entering power save mode to prevent packet loss, then packet loss is reduced, but power consumption increases
Solution Approach 1:
The patent implements a dynamic leak guard mechanism where the delay period before entering power save mode is adjusted based on communication history and packet transmission patterns. The device transitions from a static delay approach to a dynamic one where the leak guard timer is reset or extended when packets are detected in the AP's transmit queue, allowing optimization between reliability and power consumption in real-time
Solution Approach 2:
The patent employs feedback mechanisms where the wireless communication device monitors packet acknowledgments and queue status from the AP. Based on this feedback, the device adjusts its leak guard behavior - extending the delay period when packets are pending and reducing it when the queue is clear, thereby resolving the contradiction adaptively
2Use of energy by moving object
If the wireless communication device enters power save mode immediately to conserve power, then power consumption is reduced, but packet loss increases
Solution Approach 1:
The patent implements preliminary action by establishing a leak guard delay period before the device enters power save mode. This delay allows the AP to clear its transmit queue and prevent packet loss. The mechanism proactively manages the transition to power save mode rather than reactively responding to packet loss events
Solution Approach 2:
The patent changes the time parameter dynamically by adjusting the leak guard delay duration based on communication conditions. The delay period is not fixed but is modified according to packet transmission patterns and queue status, allowing optimization of both power consumption and packet loss prevention
3Reliability
If the wireless communication device remains active to ensure reliable packet reception, then packet loss is minimized, but throughput decreases due to increased power consumption
Solution Approach 1:
The patent implements periodic action through the leak guard mechanism that rhythmically manages power save mode entry and exit. The device alternates between active and power save states based on the leak guard timer and packet queue status, creating an optimized periodic pattern that balances reliability and throughput
Data Source
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AI summary
This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for adjusting a time period to delay entering a power save mode (leak guard) for wireless communications. In one aspect, a wireless communication device may adjust a time period to delay entering a power save mode. The time period is associated with the wireless communication device remaining awake to prevent an access point from transmitting to the wireless communication device while the wireless communication device is in the power save mode. The wireless communication device also may provide, to the AP, an indication that the wireless communication device is entering a power save mode, and the wireless communication device may enter the power save mode. Entering the power save mode is at least the adjusted time period after providing the indication to the AP.