Bluetooth Channel Selection Based on Wi-Fi Position
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In environments where Wi-Fi and Bluetooth communication standards using overlapping frequency bands coexist, existing systems face significant interference issues, particularly when Bluetooth channels overlap with Wi-Fi channels, leading to disrupted communication due to increased possibility of CSMA/CA preventing data transmission.
Innovation Solution
The proposed wireless communication system determines Bluetooth channels to be used based on the positional relationship between Bluetooth terminals and Wi-Fi access points, preferring channels that do not overlap with Wi-Fi channels or have minimal interference, ensuring independent communication based on both standards by utilizing channels outside the overlapping frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If Bluetooth communication uses channels overlapping with Wi-Fi channels, then Bluetooth communication can be established, but mutual interference occurs between Wi-Fi and Bluetooth standards
Solution Approach 1:
The patent applies local quality by determining Bluetooth channel allocation based on the specific positional relationship between Bluetooth terminals and Wi-Fi access points. Different Bluetooth terminals are assigned different channels depending on their local interference environment, rather than using a uniform channel allocation strategy. This allows each Bluetooth connection to use the most appropriate channel for its specific location, reducing overall interference while maintaining adaptability.
Solution Approach 2:
The patent changes the parameter of Bluetooth channel selection based on the detected Wi-Fi channel usage and positional relationships. By dynamically adjusting which Bluetooth channels are used according to the current Wi-Fi environment, the system reduces interference while maintaining communication flexibility. The channel allocation is not fixed but adapts to changing environmental parameters.
2Ease of operation
If CSMA/CA is used for channel access control, then wireless communication can be managed, but data transmission is prevented due to increased interference
Solution Approach 1:
The patent applies preliminary action by determining and allocating appropriate Bluetooth channels before data transmission begins. By pre-selecting channels that minimize interference with Wi-Fi communication based on positional relationships, the system reduces the likelihood of CSMA/CA collisions and backoffs, thereby improving actual data transmission efficiency while maintaining automatic access control.
3Quantity of substance
If the same frequency band is used by both Wi-Fi and Bluetooth standards, then spectrum utilization is improved, but communication reliability deteriorates due to interference
Solution Approach 1:
The patent applies segmentation by dividing the available Bluetooth channels into different groups based on their overlap with Wi-Fi channels. Bluetooth connections are segmented into those using non-overlapping channels and those using overlapping channels, with appropriate allocation strategies for each segment. This segmentation allows the system to utilize the full frequency band while maintaining reliability by avoiding interference-prone channel assignments.
Data Source
AI summary
A wireless communication system of the present disclosure includes a first wireless communication device that performs wireless communication in a first communication scheme, a terminal device that performs wireless communication in the first communication scheme with the first wireless communication device, and a plurality of second wireless communication devices that can perform wireless communication in a second communication scheme different from the first communication scheme, and function as access points.