Spatial QoS Prioritization for Wireless Media Streaming
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Solution Overview
Problem
Conventional wireless network QoS prioritization methods fail to effectively manage bandwidth in dense scenarios where multiple users share the same media stream, leading to inconsistent and suboptimal service experiences, especially when users are of the same class or type, resulting in random device selection and intermittent media reception.
Innovation Solution
A spatial QoS prioritization algorithm that determines the relative or absolute location of target devices and grants prioritized QoS reception to the furthest device within a group, ensuring the media stream is delivered intact to that device while stopping transmission to others, thereby optimizing resource allocation and media sharing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional one-dimensional prioritization rules are used to manage bandwidth, then scheduling simplicity is maintained, but service reliability deteriorates in dense scenarios where multiple users share the same media stream
Solution Approach 1:
The patent introduces spatial location as a new dimension for QoS prioritization. Instead of relying solely on conventional one-dimensional criteria (user class, group, device type), the system now considers the physical location of devices. This dimensional expansion allows the scheduler to differentiate between devices in the same class by their spatial positions, thereby resolving conflicts in dense scenarios where multiple users share identical stream types and priorities.
2Productivity
If arbitrary stream selection is used to favor one stream over another, then some streams are satisfied, but service consistency deteriorates as the choice is effectively random
Solution Approach 1:
The patent changes the prioritization parameter from arbitrary or random selection to spatial location-based selection. By using the physical location of devices as the deciding factor, the system transforms an inconsistent random process into a deterministic spatial process. This ensures that stream satisfaction is achieved through a consistent rule (spatial distribution) rather than random chance, improving service consistency while maintaining productivity.
3Ease of operation
If fair bandwidth sharing is implemented, then resource allocation fairness is improved, but media reception quality deteriorates as all users experience poor service in dense scenarios
Solution Approach 1:
The patent applies local quality by differentiating service delivery based on the local spatial position of each device. Instead of uniform fair sharing that treats all devices equally regardless of location, the system provides prioritized service to devices in specific spatial positions (e.g., furthest devices or those in underserved areas). This localized differentiation ensures that media reception quality is maintained for strategically selected devices while still preserving overall resource allocation fairness through spatially-aware scheduling.
4Adaptability or versatility
If best effort scheduling is used when prioritization rules fail, then system adaptability is maintained, but media stream integrity deteriorates resulting in intermittent reception
Solution Approach 1:
The patent applies preliminary action by establishing spatial location-based prioritization rules before congestion occurs or before best effort scheduling would be invoked. The system proactively determines which devices should receive prioritized service based on their spatial positions, creating a predetermined scheduling hierarchy. This preliminary spatial differentiation prevents the need to fall back to best effort scheduling, thereby maintaining both adaptability and media stream integrity by avoiding intermittent reception issues.
Data Source
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AI summary
A method and apparatus for spatial Quality of Service (QoS) in a wireless network include determining a relative or absolute location of target devices receiving or requesting a same media stream; determining a group of the target devices within a given proximity of one another utilizing resources from the same wireless access network; for each target device in the group while the resources remain in the wireless network: determining a target device based on relative spatial distance to other target devices in the group with prioritized reception of the media stream; and granting the determined target device prioritized reception of the media stream.