Wireless Channel Scanning Method for Throughput Optimization
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Solution Overview
Problem
As the number of wireless LAN specifications increases, wireless network cards face longer channel scanning times due to broader channel ranges, leading to hindered data throughput and performance, as they cannot perform data transmission during scanning and must wait for the process to complete before resuming data transmission.
Innovation Solution
Implementing a channel scanning method that divides channels into sets and scans them in multiple periods, allowing for target channel selection and verification, reducing the overall scanning time by focusing on previously identified capable channels and distributing scanning interruptions across intervals, thereby minimizing data transmission interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wireless network card scans all channels to ensure comprehensive channel detection, then the reliability of channel selection is improved, but the scanning time increases and data throughput is reduced
Solution Approach 1:
The patent segments the channel scanning process into two distinct phases: a first channel scanning procedure that scans all channels to build a comprehensive channel capability database, and a second channel scanning procedure that scans only target channels for quick verification. This segmentation allows the system to balance comprehensive detection with fast response, resolving the contradiction between reliability and productivity.
2Measurement precision
If the wireless network card performs comprehensive channel scanning, then the accuracy of channel capability detection is improved, but the time required for scanning increases
Solution Approach 1:
The patent performs preliminary channel scanning to establish a comprehensive database of channel capabilities before actual data transmission begins. By conducting the thorough scanning process in advance (preliminary action), the system ensures high detection accuracy while enabling faster subsequent operations, thus resolving the contradiction between measurement precision and time loss.
3Reliability
If the wireless network card performs channel scanning frequently to ensure up-to-date channel information, then the reliability of connection establishment is improved, but the frequency of data transmission interruptions increases
Solution Approach 1:
The patent implements a dynamic channel scanning strategy where the scanning frequency and scope are adjusted based on system state. The first scanning procedure establishes comprehensive channel information, while the second procedure provides quick updates only when necessary. This dynamic approach maintains connection reliability while minimizing interruptions to data transmission.
Data Source
AI summary
A channel scanning method applied to a wireless communication system for scanning a plurality of channels to select target channels capable of establishing corresponding connections is disclosed. The channel scanning method includes scanning a plurality of channels for determining if any of the channels is capable of establishing a corresponding connection; setting the channels capable of establishing corresponding connections to be a plurality of target channels; and scanning the target channels for determining if the target channels are capable of establishing corresponding connections, respectively.