Wireless Transmitting Apparatus Auto Channel Selection
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Solution Overview
Problem
Conventional wireless communication systems face co-channel interference issues when access points are in Ad Hoc or station mode, as the auto channel selection function is not supported, leading to interference in Wi-Fi networks.
Innovation Solution
A wireless communication system and method that includes a transmitting apparatus with a processing unit to determine a wireless transmission channel on a first frequency band, a transmitting antenna unit to broadcast channel information on a second frequency band, and a wireless sensing unit to perform sensing, allowing for auto channel selection and interference prevention by adjusting the channel based on received information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the transmitting apparatus operates in Ad Hoc or station mode, then the device can function in flexible communication modes, but co-channel interference occurs because auto channel selection is not supported
Solution Approach 1:
The system performs preliminary channel sensing and detection before actual communication. The transmitting apparatus senses the channel state information on the first frequency band, detects available channels, and stores this information for future use, enabling automatic channel selection without requiring AP mode
Solution Approach 2:
The system implements feedback mechanisms where channel state information is transmitted between devices. The transmitting apparatus sends channel state information to the receiving apparatus, which then provides feedback about the detected channel quality, allowing both devices to adjust their communication parameters and avoid interfering channels
2Reliability
If channel state information is transmitted on a different frequency band, then channel information can be shared without interfering with data transmission, but additional frequency band requirements increase system complexity
Solution Approach 1:
The system segments the communication functions by separating control plane (channel state information) and data plane (actual communication) transmissions. Channel state information is transmitted on the second frequency band while data communication occurs on the first frequency band, allowing simultaneous operation without interference
Solution Approach 2:
The transmitting and receiving apparatus are designed to operate on multiple frequency bands simultaneously. The same hardware components handle both first frequency band (data communication) and second frequency band (channel state information) operations, making the system multi-functional without proportionally increasing complexity
Data Source
AI summary
A wireless communication system includes a receiving apparatus and a transmitting apparatus. The transmitting apparatus includes a transmitting processing unit, configured to determine a wireless transmission channel on a first frequency band when in a first mode; a transmitting antenna unit, configured to transmit information of the wireless transmission channel and a channel state information of the wireless transmission channel on a second frequency band when in the first mode of the transmitting apparatus; and a wireless sensing unit, configured to perform a wireless sensing on the wireless transmission channel when in a second mode of the transmitting apparatus.