Wi-Fi Connection Configuration for Asymmetric AP–STA Bandwidth
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Solution Overview
Problem
The bandwidth asymmetry between access points (AP) and stations (STA) in Wi-Fi networks, particularly in IEEE802.11be, leads to insufficient spectrum utilization and unbalanced load distribution due to the AP's maximum operation bandwidth exceeding that of the STA, limiting simultaneous communication efficiency.
Innovation Solution
A method for configuring communication connections by explicitly indicating the operation bandwidth of the STA through message frames, allowing the AP to establish multiple Basic Service Sets (BSSs) based on the STA's bandwidth, and migrating connections to balance load across these sets when thresholds are reached, ensuring optimal bandwidth utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the AP operates at maximum bandwidth (320 MHz), then the AP's transmission capability is improved, but the STA cannot utilize the full bandwidth due to its limited operation bandwidth (80 MHz or 160 MHz), resulting in insufficient spectrum utilization
Solution Approach 1:
The patent divides the 320 MHz bandwidth into multiple 160 MHz segments (e.g., lower 160 MHz and upper 160 MHz). The AP establishes multiple BSSs, each operating on a different bandwidth segment that matches the STA's capability. This segmentation allows the AP to fully utilize its 320 MHz bandwidth while each STA operates at its supported bandwidth without waste.
2Adaptability or versatility
If the AP supports multiple bandwidths, then adaptability to different STAs is improved, but the complexity of connection management increases
Solution Approach 1:
The patent implements automatic bandwidth negotiation and BSS selection mechanisms. When a STA associates with the AP, the system automatically determines the STA's supported bandwidth, selects an appropriate BSS, and configures the connection without manual intervention. This self-service approach handles the complexity internally while presenting a simple interface to users.
3Device complexity
If a single BSS is used, then the system is simple to manage, but load distribution becomes unbalanced when multiple STAs with different bandwidth requirements connect
Solution Approach 1:
The patent segments the network into multiple BSSs, each handling specific bandwidth requirements. STAs are automatically directed to appropriate BSSs based on their capabilities, distributing load across multiple service sets. This segmentation improves load distribution efficiency while maintaining simple management through automated routing mechanisms.
Data Source
AI summary
A method for configuring communication connection, applied to a first communication device includes: receiving a first message frame, where the first message frame includes a first information element that indicates an operation bandwidth of a second communication device. The first message frame comprises receiving the first message frame through a first connection with the second communication device.