WIFI Terminal Scan Time Adjustment for Power Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional WIFI channel scan methods result in high power consumption due to long scan time periods, which are not effectively adjusted based on the channel environment, leading to inefficient scanning and potential failure to detect new wireless access points in real time.
Innovation Solution
An adjusting method for WIFI channels that involves obtaining channel parameters such as energy value and idle slot ratio within a preset time period to determine the channel environment type, and subsequently shortening or extending the scan time period accordingly to optimize power usage and scanning efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a uniform residence time is set for all channels, then the scanning process is simplified, but the scanning efficiency and power consumption optimization are compromised
Solution Approach 1:
The patent applies local quality by setting different residence times for different channels based on their individual environment types. Instead of using a uniform residence time for all channels, the system evaluates each channel's environment (simple or complicated) and assigns an appropriate residence time (first residence time for simple environments, second residence time for complicated environments), thereby optimizing scanning efficiency for each specific channel while maintaining overall system simplicity.
2Reliability
If the scan time period is extended to ensure detection of all channels, then detection completeness is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamics by making the scan time period adjustable based on channel environment conditions. The system dynamically selects between a first (shorter) residence time for channels with simple environments and a second (longer) residence time for channels with complicated environments. This dynamic adjustment ensures reliable detection across all channel types while minimizing unnecessary power consumption on channels that require less scanning time.
3Use of energy by moving object
If the scan time period is shortened to reduce power consumption, then energy efficiency is improved, but the ability to detect new access points in real time deteriorates
Solution Approach 1:
The patent applies parameter changes by modifying the residence time parameter based on the evaluated channel environment type. For channels with simple environments, a shorter first residence time is used to reduce power consumption while maintaining adequate detection capability. For channels with complicated environments, a longer second residence time is used to ensure real-time detection of new access points. This parameter adaptation resolves the contradiction between energy efficiency and real-time detection capability.
4Device complexity
If a fixed scan time period is used, then system complexity is reduced, but adaptability to different channel environments deteriorates
Solution Approach 1:
The patent implements preliminary action by evaluating the channel environment type before executing the scanning process. The system performs a preliminary assessment of each channel's environment (determining whether it is simple or complicated) and uses this information to select the appropriate residence time for subsequent scanning. This preliminary evaluation enables the system to adapt to different channel environments effectively while maintaining relatively simple scanning operations.
Data Source
AI summary
An adjusting method for a terminal includes obtaining at least one channel parameter of a wireless fidelity (WIFI) channel within a first preset time period; and shortening a scan time period of the WIFI channel from a preset scan time period to a value smaller than a second preset time period in response to the at least one channel parameter of the WIFI channel representing that a channel environment type of the WIFI channel is simple. A terminal and a non-transitory computer-storage are also provided.