Mobile Wi-Fi Channel Synchronization for Stability
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Solution Overview
Problem
Current Mobile Wi-Fi devices face issues with compatibility, throughput, and stability due to independent channel switching between Wi-Fi access points and clients, leading to different communication channels being used for each.
Innovation Solution
A method and apparatus for a Mobile Wi-Fi device to receive a channel switching instruction from a Wi-Fi access point, switching both the communication channel between the Mobile Wi-Fi device and the access point, as well as the channel between the Mobile Wi-Fi device and a terminal, to a destination communication channel, ensuring both the Wi-Fi client and access point operate on the same channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If independent channel switching is performed between Wi-Fi access points and clients, then channel flexibility is improved, but compatibility, throughput, and stability deteriorate
Solution Approach 1:
The patent merges the channel switching operations of the Wi-Fi access point and Wi-Fi client into a unified coordinated switching process. Both devices switch to the same destination channel simultaneously based on DFS detection, ensuring they remain on the same channel and avoiding the compatibility and stability issues caused by independent switching.
Solution Approach 2:
The patent implements a feedback mechanism where the Wi-Fi access point detects radar signals or interference on the current channel, then initiates a coordinated channel switch. The system monitors the switching process and ensures both access point and client complete the transition to the destination channel, maintaining synchronization and reliability.
2Reliability
If the Wi-Fi access point switches channel independently, then the access point can avoid interference, but the client may be left on a different channel causing communication failure
Solution Approach 1:
The patent applies preliminary action by having the Wi-Fi access point detect interference or radar signals on the current channel before initiating the switch, then proactively coordinates the channel change with the Wi-Fi client. This ensures the client switches to the same destination channel in advance, preventing communication failures and maintaining continuity.
Solution Approach 2:
The Wi-Fi access point acts as an intermediary that mediates the channel switching process. It detects interference, selects a destination channel, and coordinates the switch for both itself and the Wi-Fi client, ensuring they remain synchronized and avoiding communication failures that would occur with independent switching.
3Speed
If channel switching is performed without coordination, then switching speed is improved, but system stability deteriorates
Solution Approach 1:
The patent applies dynamics by implementing a coordinated switching mechanism that adapts to the specific DFS detection results and interference conditions. The system dynamically adjusts the switching process to ensure both access point and client switch to the same destination channel, maintaining stability while achieving rapid channel transitions when needed.
Data Source
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AI summary
Embodiments of the present invention provide a channel switching method, apparatus, and device. The method includes: obtaining, by a mobile Wi-Fi device, a channel switching instruction sent by a Wi-Fi access point in a network, where the channel switching instruction carries a destination channel identifier; and switching, by the mobile Wi-Fi device according to the channel switching instruction, a communication channel between the mobile Wi-Fi device and the Wi-Fi access point, and a communication channel between the mobile Wi-Fi device and a terminal that accesses the mobile Wi-Fi device to a destination communication channel corresponding to the destination channel identifier carried in the channel switching instruction. In this way, a Wi-Fi client and a Wi-Fi access end of a mobile Wi-Fi device still work on a same communication channel after performing channel switching, thereby improving compatibility, a throughput, and stability of the mobile Wi-Fi device.