Acknowledgement Transmission Parameter Adjustment for Data Reliability
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Solution Overview
Problem
Existing data transmission systems experience unnecessary retransmissions due to lost or corrupted acknowledgement signals, leading to reduced throughput, as they cannot reliably distinguish between properly received data and data that requires retransmission.
Innovation Solution
A system and method that measure the quality of acknowledgement reception and modify acknowledgement transmission parameters to enhance reliability when reception is poor, and optimize other system performance when reception is high, thereby reducing unnecessary retransmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional acknowledgement mechanism is used, then data transmission reliability is improved, but unnecessary retransmissions occur reducing throughput
Solution Approach 1:
The system measures the quality of acknowledgement reception and uses this feedback to dynamically modify acknowledgement transmission parameters. This closed-loop feedback mechanism allows the system to adapt to channel conditions and reduce unnecessary retransmissions while maintaining reliability.
Solution Approach 2:
The acknowledgement transmission parameters are made dynamic rather than fixed. The system continuously adjusts parameters such as transmission power, modulation scheme, or encoding based on measured acknowledgement quality, allowing optimal performance across varying channel conditions.
2Reliability
If acknowledgement transmission parameters are made robust, then acknowledgement reliability is improved, but system complexity increases
Solution Approach 1:
The system modifies transmission parameters such as power level, modulation type, or error correction coding based on measured acknowledgement quality. By changing parameters rather than adding complex new mechanisms, the system achieves robustness with minimal additional complexity.
Solution Approach 2:
The system uses its own measured performance data (acknowledgement quality) to automatically adjust its behavior. This self-service approach eliminates the need for external control or complex management mechanisms, reducing overall system complexity.
Data Source
AI summary
A system for transmitting data between a first device and a second device, the first device being arranged to transmit data to the second device and the second device being arranged to transmit an acknowledgement to the first device if the data transmitted by the first device is properly received by the second device; wherein the system comprises means to measure the quality of reception of acknowledgements by the first device and to modify one or more acknowledgement transmission parameters depending on the measurement. The parameters may include: transmission rate, degree of forward error correction coding, and output power. The parameters may be modified to improve the quality of reception of acknowledgements if the measured quality falls below a threshold. The means to measure the quality of reception may comprise means to determine a measure of the number, or relative number, of acknowledgements that were not properly received by the first device. In an embodiment the first device is arranged to retransmit the data if an acknowledgement is not properly received, and the means to determine a measure of the number of acknowledgements that were not properly received by the first device comprises means to determine the number of data packets that have been received by the second device which were previously properly received by the second device.