WLAN Operating Mode Request for STA Mode Negotiation
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Solution Overview
Problem
Existing WLAN systems lack the ability for an initiating station to request a responding station to change its operating mode or parameters, limiting network performance enhancements such as improved coexistence and reduced interference in scenarios like multi-AP and peer-to-peer connections.
Innovation Solution
Implementing an operating mode request (OMR) mechanism that allows an initiating station to request a responding station to change its operating mode or parameters, including bandwidth, number of spatial streams, and other settings, with an expected start time and response handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing WLAN notification mechanisms (OMN/OMI) are used, then operating mode changes can be notified, but the initiating STA cannot request the responding STA to change its operating mode
Solution Approach 1:
The patent combines the operating mode notification functionality with a new request mechanism into a unified OMR (Operating Mode Request) framework. This merging allows the system to both notify and request mode changes through integrated message types (OMR, OMR Response, OMN) that consolidate previously separate functions, enabling the initiating STA to both request and negotiate mode changes with the responding STA.
Solution Approach 2:
The OMR message structure is designed as a universal framework that can handle multiple types of operating mode requests (bandwidth changes, spatial stream changes, other parameter changes) through a single standardized mechanism. This multi-functional design allows different types of mode negotiations to follow the same request-response pattern, improving adaptability while maintaining consistent complexity management.
2Productivity
If STAs can dynamically adjust operating modes based on network conditions, then WLAN performance and coexistence are improved, but the ability to negotiate mode changes between STAs is limited
Solution Approach 1:
The patent implements a feedback mechanism where the responding STA sends an OMR Response message back to the initiating STA, indicating whether the requested operating mode change is accepted or rejected. This feedback loop enables dynamic adaptation based on network conditions, as the initiating STA can adjust its requests according to the responses received, thereby improving WLAN performance through negotiated optimizations.
Solution Approach 2:
The system enables dynamic operating mode adjustments by allowing STAs to initiate mode change requests at any time based on current network conditions. The standardized OMR request-response mechanism provides the flexibility needed for dynamic negotiation, while the structured approach ensures that changes are coordinated and validated, preventing conflicts and improving overall network performance.
Data Source
AI summary
A system and a method are disclosed for performing operating mode changes in a wireless system. A method performed by a first device includes transmitting, to a second device, an operating mode request (OMR) indicating a requested operation mode change by the second device and an expected start time; receiving, from the second device, a response to the OMR; and transmitting or receiving data, to or from the second device, based on the response to the OMR.