Restricted TWT Traffic Classification for Priority Wi-Fi Scheduling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The aggregation of multiple traffic categories in a single bitmap for Restricted Target Wake Time (R-TWT) parameters makes it difficult to schedule traffic according to priority in resource-constrained environments, particularly in Wi-Fi networks with multiple access points.
Innovation Solution
Implementing a traffic type restriction policy that restricts parameter signaling to allowed traffic types, providing TID and/or AC level granularity by transmitting separate Broadcast TWT Parameters Sets for each traffic type, using mechanisms such as per-TID or per-AC restrictions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If multiple traffic categories are aggregated in a single bitmap for R-TWT parameters, then the device complexity is reduced and easier to manage, but the scheduling precision and priority-based traffic management capability deteriorates
Solution Approach 1:
The patent segments the single aggregated bitmap into multiple separate bitmaps, with each bitmap dedicated to a specific traffic category (e.g., voice, video, audio, data). This segmentation enables independent configuration and management of R-TWT parameters for each traffic type, resolving the contradiction by maintaining simplicity through structured organization while achieving precise priority-based scheduling control.
2Measurement precision
If separate Broadcast TWT Parameters Sets are transmitted for each traffic type, then the traffic scheduling precision and priority management improve, but the device complexity and signaling overhead increases
Solution Approach 1:
The patent divides the parameter signaling into separate Broadcast TWT Parameters Sets for each traffic category, allowing precise control of wake-up times and transmission parameters for voice, video, audio, and data traffic independently. This segmentation achieves high scheduling precision while managing complexity through standardized parameter structures for each traffic type.
Solution Approach 2:
Each traffic category receives customized R-TWT parameters tailored to its specific requirements (e.g., lower latency for voice, higher reliability for data). This local quality approach allows optimization of scheduling parameters for each traffic type individually, improving overall scheduling precision while maintaining manageable complexity through traffic-type-specific configurations.
3Productivity
If traffic parameters are restricted per traffic type, then the transmission efficiency and interference reduction improve, but the adaptability and versatility of the system decreases
Solution Approach 1:
The patent segments traffic management into separate parameter sets for different traffic categories, enabling optimized scheduling for each type (voice, video, audio, data). This segmentation improves transmission efficiency by preventing interference between traffic types while maintaining system adaptability through the ability to configure separate parameters for emerging traffic patterns and applications.
Solution Approach 2:
The patent implements dynamic traffic type restriction policies that can be adjusted based on network conditions and requirements. The system can adapt the restriction policy (e.g., allowing or disallowing specific traffic types) while maintaining per-type parameter control, thus improving transmission efficiency without sacrificing the ability to adapt to changing network needs and traffic patterns.
Data Source
AI summary
Aspects of the present disclosure are directed to modifying use of Restricted Target Wake Up Time Service to restrict broadcasting traffic parameters sets on a per traffic category basis between an access point and an end device in a wireless network. In one aspect, a method includes transmitting, by an access point, a message to an end device connected to the access point, the message identifying for the end device a traffic type restriction policy that the access point has on reporting Restricted Target Wake Time (R-TWT) parameters for a plurality of traffic types; and receiving, from the end device, a separate Broadcast TWT Parameters Set for each one of the plurality of traffic types in accordance with the traffic type restriction policy.