Wireless Relay Buffer Priority Control
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Solution Overview
Problem
In wireless relay systems, the reduction of retransmission buffer capacity to miniaturize relay stations leads to delays in transmitting high-priority data, as existing buffer control methods do not effectively manage data priority, causing overflow and increased delay times.
Innovation Solution
A wireless relay device with a buffer control unit that compares the priority of incoming data with stored data, removing lower-priority data to store higher-priority data, thereby optimizing buffer usage and reducing delays in transmitting high-priority data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the retransmission buffer capacity is reduced to miniaturize the relay station, then the device size is reduced, but the delay time increases and buffer overflow occurs more frequently
Solution Approach 1:
The patent applies local quality by differentiating data storage priorities within the buffer. Instead of treating all data equally, the system assigns different priority levels to different data packets based on their characteristics (e.g., QoS requirements, data type). This allows the buffer to optimize space utilization by storing high-priority data while evicting low-priority data, thereby reducing the required buffer capacity while maintaining timely transmission of critical data.
Solution Approach 2:
The patent implements dynamics through the priority-based buffer management mechanism that adapts to changing traffic conditions. The buffer control dynamically adjusts which data to retain or evict based on real-time priority assessments. This dynamic approach allows the system to respond flexibly to varying data arrival patterns and channel conditions, preventing buffer overflow in small buffers while minimizing delays for high-priority data.
2Volume of moving object
If the retransmission buffer capacity is reduced to miniaturize the relay station, then the device size is reduced, but the reliability of data transmission deteriorates due to buffer overflow
Solution Approach 1:
The patent applies local quality by differentiating data storage priorities within the buffer. Instead of treating all data equally, the system assigns different priority levels to different data packets based on their characteristics (e.g., QoS requirements, data type). This allows the buffer to optimize space utilization by storing high-priority data while evicting low-priority data, thereby reducing the required buffer capacity while maintaining timely transmission of critical data.
Solution Approach 2:
The patent implements feedback through the priority-based buffer management mechanism that continuously monitors buffer status and data characteristics. The system uses this feedback to make informed decisions about data eviction and retention, adjusting buffer operations based on real-time conditions. This feedback loop ensures that buffer overflow is minimized while maintaining transmission reliability for high-priority data packets.
3Device complexity
If conventional buffer control methods are used, then the buffer management is simple, but high-priority data experiences delays due to ineffective priority management
Solution Approach 1:
The patent applies local quality by differentiating data storage priorities within the buffer. Instead of treating all data equally, the system assigns different priority levels to different data packets based on their characteristics (e.g., QoS requirements, data type). This allows the buffer to optimize space utilization by storing high-priority data while evicting low-priority data, thereby reducing the required buffer capacity while maintaining timely transmission of critical data.
Solution Approach 2:
The patent implements preliminary action by pre-assessing and tagging data packets with priority information before they enter the buffer. This preliminary classification allows the buffer control mechanism to quickly identify and retain high-priority data without complex real-time decision-making, thereby reducing delays while maintaining manageable system complexity.
Data Source
AI summary
A wireless relay device relays data from a transmitting device to a receiving device by wireless communication. The wireless relay device includes a buffer and a buffer control unit. The buffer temporarily stores relay target data. The buffer control unit controls the buffer, based on comparison of priority of first data received from the transmitting device with priority of second data stored in the buffer, (i) to remove the second data from the buffer and to store the first data in the buffer or (ii) not to store the first data in the buffer.