Protected Management Frames for Wi-Fi Capability and Dynamic QoS
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Solution Overview
Problem
Existing wireless networks lack mechanisms for non-AP STAs to convey their IEEE and Wi-Fi Alliance generational capabilities to APs without violating privacy, and they do not support dynamic stream classification services (SCS) for frequently changing traffic patterns, leading to interference and disrupted latency-sensitive applications.
Innovation Solution
Implement mechanisms for non-AP STAs to transmit IEEE and Wi-Fi Alliance generational capability information using protected management frames, and enable dynamic SCS setup between APs and non-AP STAs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If non-AP STAs transmit generational capability information using traditional management frames, then capability information can be conveyed, but privacy is violated and the frames are susceptible to injection attacks
Solution Approach 1:
The patent introduces a protected management frame mechanism that acts as an intermediary between non-AP STAs and APs. This protected frame structure includes authentication tags and encryption fields that mediate the capability information transmission, ensuring privacy protection while maintaining the essential communication function between devices.
Solution Approach 2:
The patent modifies the traditional management frame parameters by adding protection fields such as authentication tags, encryption indicators, and integrity check values. These parameter changes transform the frame structure to provide privacy protection and resistance against injection attacks while preserving the original frame's functional parameters.
2Productivity
If static QoS profiles are used in traditional SCS, then setup is simple, but dynamic traffic patterns cause interference and disrupted latency-sensitive applications
Solution Approach 1:
The patent implements dynamic SCS by allowing STAs to request and activate multiple QoS profiles with different priority levels. The system transitions from static QoS configuration to dynamic profile selection, where STAs can switch between profiles based on changing traffic patterns, enabling adaptive QoS management that responds to real-time network conditions.
Solution Approach 2:
The patent segments the QoS configuration into multiple discrete profiles, each with specific priority levels and characteristics. This segmentation allows the system to manage different traffic types independently, enabling selective activation of appropriate profiles based on current network conditions and application requirements.
3Reliability
If multiple QoS profiles are supported for dynamic traffic patterns, then latency-sensitive applications improve, but frame processing complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the AP responds to STA capability indication frames with protected frames containing acceptance or rejection indications. This feedback loop allows the STA to receive authenticated confirmation of QoS profile acceptance, ensuring reliable QoS establishment while maintaining security through the same protected frame infrastructure used for capability negotiation.
Data Source
AI summary
A first electronic device includes a processor, and a transceiver operably coupled to the processor. The transceiver is configured to transmit, to a second electronic device, a first frame including a first indication element indicating a generational capability of the first electronic device. The transceiver is also configured to receive, from the second electronic device, in response to transmitting the first frame, a second frame including a second indication element indicating a generational capability of the second electronic device.