Burst Data Prioritization With Dual Queues for Lower Delay
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Solution Overview
Problem
In virtual reality (VR) applications, sudden bursts of data transmission due to events like camera angle changes cause delays due to insufficient link bandwidth, leading to frame freezing and poor user experience.
Innovation Solution
A data transmission method where burst data is prioritized over regular data, with associated data and data nearing timeout being sent first, using a dual-queue system to manage data transmission efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If burst data is transmitted using standard queue scheduling, then regular data transmission is maintained, but transmission delay increases due to insufficient link bandwidth
Solution Approach 1:
The patent segments data into two distinct queues: a high-priority queue for burst data and a low-priority queue for regular data. This segmentation allows burst data to be transmitted independently without being blocked by regular data, thereby reducing transmission delay while maintaining overall transmission efficiency.
Solution Approach 2:
The patent implements dynamic priority adjustment where the priority of data packets is changed based on their type. Burst data packets are assigned high priority while regular data packets are assigned low priority, enabling the system to adaptively respond to varying traffic conditions and reduce delay during burst periods.
2Loss of time
If burst data is prioritized over regular data, then transmission delay is reduced, but data sequence integrity may be compromised
Solution Approach 1:
The patent applies preliminary action by sending associated data (acknowledgments, control information) before the actual burst data. This ensures that the receiver is prepared to receive and process the burst data correctly, maintaining sequence integrity while enabling faster transmission of the burst data itself.
Solution Approach 2:
The patent incorporates feedback mechanisms where associated data is sent before burst data to establish proper sequencing context. The receiver uses this feedback information to correctly interpret and reassemble the burst data, ensuring that priority-based transmission does not compromise data sequence integrity.
3Reliability
If associated data is sent before burst data, then data accuracy is maintained, but transmission time increases
Solution Approach 1:
The patent applies partial action by sending only the necessary associated data (minimum required for accuracy) before the burst data, rather than sending all possible data. This partial preliminary action maintains data accuracy while minimizing the time overhead, achieving a balance between reliability and speed.
Data Source
AI summary
A data transmission method to reduce a delay. If a network device receives burst data, the network device preferentially sends the burst data. The burst data may be data whose data amount is greater than a data amount threshold.