Variable Channel Scanning Duration for Wireless Devices
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Solution Overview
Problem
Wireless communication devices face inefficiencies in scanning for wireless devices due to fixed dwell times, which can disrupt ongoing operations and increase power consumption, affecting battery life and communication quality.
Innovation Solution
The method involves adjusting the duration of scanning channels based on the device's current operations, such as reducing dwell time when power consumption is low or when an active connection is already established, to balance detection efficiency with power conservation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the device scans channels for a fixed duration, then detection efficiency is maintained, but power consumption increases and ongoing operations may be disrupted
Solution Approach 1:
The patent applies dynamics by making the scanning duration variable rather than fixed. The system dynamically adjusts the dwell time based on device state - using longer durations when the device is idle to improve detection efficiency, and shorter durations when operations are active to reduce power consumption and minimize disruption to ongoing tasks.
Solution Approach 2:
The patent changes the parameter of scanning duration based on device operations. By monitoring whether the device is in an idle state or performing operations, the system adjusts the dwell time parameter accordingly - increasing it during idle periods for better detection and decreasing it during active operations to conserve energy and maintain task performance.
2Reliability
If the device scans channels for a longer duration, then detection efficiency improves, but disruption to ongoing operations increases
Solution Approach 1:
The system changes the scanning duration parameter based on operational context. When device operations are detected, the dwell time is reduced to minimize interruption and maintain productivity. When no operations are occurring, the dwell time is increased to improve detection efficiency, thus balancing both requirements dynamically.
3Use of energy by moving object
If the device reduces scanning duration to save power, then power consumption decreases, but detection efficiency deteriorates
Solution Approach 1:
The system implements periodic scanning with variable duration based on device state. During idle periods, longer scans are performed to ensure detection efficiency. During active operations, shorter scans are used to conserve power. This periodic adaptation ensures that detection efficiency is maintained when possible while minimizing power consumption during active use.
Data Source
AI summary
A device that includes one or more processors may receive instructions to scan, at a given time, one or more channels in one or more frequency bands for presence of wireless devices in an environment of the device. The device may also identify one or more operations of the device that are occurring at the given time. The device may also adjust a duration of scanning the one or more channels based on the identified operations. The device may also cause a wireless receiver of the device to scan, for the adjusted duration, the one or more channels for the presence of the wireless devices.