WLAN QoS Policy Negotiation for Mixed-Protocol Traffic
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Solution Overview
Problem
Existing wireless local area networks (WLANs) face challenges in efficiently managing resources and providing quality of service (QoS) due to devices with varying communication protocols and hardware limitations, leading to bandwidth constraints and suboptimal response times.
Innovation Solution
Implementing a radio architecture that integrates WLAN and Bluetooth functionalities, with coexistence circuitry and shared or separate signal paths for both technologies, allowing for efficient negotiation of QoS policies based on layer-3 source and destination addresses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple devices with varying communication protocols share wireless resources, then device compatibility and versatility are improved, but bandwidth efficiency and response times deteriorate
Solution Approach 1:
The patent segments QoS policies into distinct components that can be independently negotiated and applied to different device types and traffic classes. This allows the system to maintain protocol compatibility while optimizing bandwidth efficiency for specific device categories through differentiated policy application.
Solution Approach 2:
The patent implements dynamic QoS policy negotiation where access points and stations can adapt their quality of service parameters in real-time based on current network conditions and device capabilities. This dynamic adjustment enables the system to optimize bandwidth efficiency while maintaining versatility across different protocols.
2Adaptability or versatility
If legacy protocol devices coexist with newer protocol devices, then network compatibility is improved, but resource allocation efficiency and response times worsen
Solution Approach 1:
The patent applies local quality differentiation by tailoring QoS policies to specific device types and traffic characteristics. Legacy devices receive policies optimized for their protocol requirements while newer devices receive policies leveraging advanced features, thereby maintaining compatibility while reducing response times for time-sensitive traffic.
Solution Approach 2:
The patent incorporates feedback mechanisms where devices report their protocol capabilities and network conditions to access points. This feedback enables continuous optimization of QoS policies, allowing the system to allocate resources more efficiently and reduce response times while maintaining broad compatibility.
3Reliability
If QoS policies are negotiated between stations and access points, then service quality is improved, but protocol complexity and device requirements worsen
Solution Approach 1:
The patent implements universal QoS policy negotiation mechanisms that can be applied across different protocol versions and device types. The standardized negotiation framework provides reliable service quality improvement while minimizing protocol complexity by using common understanding between access points and stations.
Data Source
AI summary
Methods, apparatuses, and computer readable media for quality-of-service policies in wireless local area networks. Apparatuses of a station (STA) are disclosed, where the apparatuses comprise processing circuitry configured to encode for transmission to an access point (AP) a quality of service (QoS) query frame and decode a QoS request frame from the AP, the QoS request frame indicating a plurality of QoS policies offered by the AP. The processing circuitry may be further configured to encode for transmission to the AP a QoS response frame, the QoS response frame indicating a status of a QoS policy of the plurality of QoS policies. Apparatuses of the AP are disclosed to encode QoS request frames and decode QoS response frames. The AP and STAs implement the negotiated QoS policies by using a QoS WLAN priority based on frames including packets being sent and received from specific addresses.