Wireless Device Time-Sensitive Queue Latency Reduction
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Solution Overview
Problem
Current wireless devices face challenges in providing stable, reliable, and low-latency transmission of time-sensitive data, particularly in applications like virtual reality and real-time gaming, due to limitations in existing communication protocols such as IEEE 802.11be.
Innovation Solution
A wireless device is designed with a time-sensitive queue and category queues, coupled with controllers and transmitters, which utilize enhanced distributed channel access mechanisms to prioritize and transmit time-sensitive data through multiple links, optimizing transmission opportunities and reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional wireless communication protocols (IEEE 802.11be) are used for data transmission, then high speed rate is achieved through multi-link multi-radio, 320 MHz bandwidth, and 4096-QAM, but latency cannot be sufficiently reduced for time-sensitive applications
Solution Approach 1:
The patent segments the queue structure into multiple categories (voice, video, best effort, background) with separate transmission opportunities for each category. This segmentation allows time-sensitive data to be transmitted through dedicated queues with prioritized access, reducing latency while maintaining reliable transmission through structured resource allocation.
Solution Approach 2:
The patent changes the transmission parameter by introducing separate transmission opportunity parameters for different queue categories. Each access category has its own contention parameters and transmission timing, allowing time-sensitive data to use optimized parameters that reduce latency while ensuring reliable delivery through category-specific resource allocation.
2Loss of time
If multiple access categories share the same transmission opportunity, then resource utilization is improved, but time-sensitive data transmission latency increases due to contention
Solution Approach 1:
The patent segments transmission opportunities into category-specific slots rather than allowing all categories to contend simultaneously. This segmentation reduces latency for time-sensitive data by providing dedicated transmission windows, while maintaining resource utilization through systematic allocation across all categories in a structured manner.
Solution Approach 2:
The patent applies local quality by providing different transmission opportunity characteristics to different access categories. Time-sensitive categories receive prioritized transmission opportunities with shorter waiting times, while less time-sensitive categories use standard contention parameters, optimizing latency for critical data while maintaining overall resource utilization.
3Reliability
If a single queue structure is used for all data types, then device complexity is reduced, but transmission reliability for time-sensitive data deteriorates due to mixed traffic handling
Solution Approach 1:
The patent segments the queue structure into multiple access categories with distinct transmission opportunities. This segmentation improves reliability for time-sensitive data by separating it from non-time-sensitive traffic, ensuring dedicated resource allocation. The complexity is managed through standardized category definitions and systematic transmission opportunity allocation.
Solution Approach 2:
The patent applies preliminary action by pre-configuring category-specific transmission opportunities and contention parameters before data arrival. This preliminary setup ensures that time-sensitive data automatically receives appropriate prioritized handling without real-time complex decision-making, improving reliability while controlling device complexity through pre-established rules.
Data Source
AI summary
A wireless device includes a time-sensitive queue, an access category queue, a controller, and a transmitter. The access category queue is associated with an access category and a link. The controller is coupled to the access category queue, and is used to acquire a transmission opportunity according to a set of contention parameters of the access category. The transmitter is coupled to the controller and the time-sensitive queue, and is used to when a transmission opportunity is acquired, if the time-sensitive queue contains data, generate a data frame according to the data in the time-sensitive queue, and transmit the data to another wireless device via a link.