Wireless Channel Switch Configuration for Multi-Standard Compatibility
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Solution Overview
Problem
Current channel switch techniques in wireless communications devices cannot handle different bandwidth values for various types of station devices compatible with different IEEE 802.11 standards, such as IEEE 802.11be, IEEE 802.11ax, and IEEE 802.11ac, leading to inefficiencies in channel switching and connectivity.
Innovation Solution
A wireless device with a controller configured to announce different channel configurations, including bandwidth, puncture, and transmit power information, for devices compatible with different IEEE 802.11 protocols during channel switching, using elements like Enhanced Wide Bandwidth Channel Switch and Channel Switch Wrapper to accommodate diverse standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If identical bandwidth values are used for all station devices, then channel switch implementation is simplified, but compatibility with different IEEE 802.11 standards (EHT, HE, VHT) is lost
Solution Approach 1:
The patent segments the channel switch announcement into separate configuration sets for different STA types (EHT, HE, VHT). Each configuration set contains specific bandwidth, puncture, and power parameters tailored to the capabilities of that STA type, allowing the AP to provide optimized configurations without requiring a single complex unified announcement
Solution Approach 2:
The patent implements dynamic configuration selection where the AP determines which configuration set to provide based on the capabilities of the connected STA. The system dynamically adapts the channel switch parameters (bandwidth, puncture patterns, power levels) to match the specific STA type, enabling both simplicity and compatibility
2Adaptability or versatility
If different channel configurations are announced for different STA types, then compatibility with various IEEE 802.11 standards is improved, but channel switch complexity increases
Solution Approach 1:
The patent applies local quality by providing different configuration parameters specifically tailored to each STA type's capabilities. EHT STAs receive configurations optimized for their wider bandwidth support, while HE and VHT STAs receive configurations matching their respective capabilities, ensuring each STA type operates at its optimal performance level
Solution Approach 2:
The patent creates a universal channel switch mechanism that can handle multiple STA types (EHT, HE, VHT) through a unified announcement structure. The AP uses a single channel switch announcement that contains multiple configuration sets, making the system universally compatible while maintaining the ability to differentiate configurations for each STA type
Data Source
AI summary
Embodiments of a method and apparatus for wireless communications are disclosed. In an embodiment, a wireless device includes a wireless transceiver configured to communicate with a first device that is compatible with a first wireless communications protocol and a second device that is compatible with a second wireless communications protocol and a controller configured to announce different channel configurations for the first device that is compatible with the first wireless communications protocol and the second device that is compatible with the second wireless communications protocol when performing channel switch.