Dual-Mode Wireless Channel Control to Avoid Self-Interference
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Solution Overview
Problem
Existing wireless communication devices face challenges in efficiently managing channel usage when operating in both child and parent station modes, leading to potential radio wave interference and reduced convenience.
Innovation Solution
A communication apparatus is designed to operate in a first mode as a child station and a second mode as a parent station, with a control unit ensuring that channels used in one mode are not used in the other mode, utilizing a Dynamic Rapid Channel Switching (DRCS) function to manage concurrent operations and prevent interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the communication apparatus operates in both child station mode and parent station mode using the same channel, then device versatility is improved, but radio wave interference occurs and communication reliability deteriorates
Solution Approach 1:
The channel resource is segmented into separate channels for child station mode and parent station mode. The control unit configures the communication unit to use a first channel when operating as a child station and a second channel when operating as a parent station, preventing simultaneous transmission on the same channel and eliminating self-interference.
Solution Approach 2:
Different channel qualities are assigned to different operational modes. The system applies local quality control by configuring mode-dependent channel selection, where the child station mode uses channels optimized for client communication while the parent station mode uses channels optimized for access point communication, ensuring each mode operates on the most suitable channel.
2Manufacturing precision
If the communication apparatus searches for access points on all available channels while operating in parent station mode, then search completeness is improved, but channel interference increases and search efficiency deteriorates
Solution Approach 1:
The search process extracts and excludes the channel currently used for parent station operations from the set of channels to be searched. The control unit configures the communication unit to perform access point searches only on channels other than the second channel being used for parent station mode, reducing interference and improving search efficiency.
Solution Approach 2:
The system performs preliminary channel configuration before initiating the access point search. The control unit pre-configures the communication unit to exclude the parent station channel from the search channel list, ensuring that the search operation starts with the correct channel set and avoiding the need to interrupt or restart the search.
Data Source
AI summary
A communication apparatus is provided that is configured to perform an operation in a first mode in which the communication apparatus operates as a child station, and an operation in a second mode in which the communication apparatus operates as a parent station. The communication apparatus includes a control unit configured to perform control in such a manner that a channel which the communication apparatus uses in the second mode is not used in search while the communication apparatus is operating in the second mode.