Adaptive Retransmission Interval Control for Signal Reliability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In existing retransmission control methods, fixed retransmission intervals can lead to inefficient signal transmission, particularly in heavy traffic conditions, as they result in repeated retransmissions that occupy communication path bandwidth.
Innovation Solution
A communication apparatus that adjusts retransmission intervals based on actual transmission times, updating the interval value after receiving a positive response signal, allowing for more efficient signal retransmission by optimizing the retransmission timing according to the communication environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed retransmission intervals are used, then signal transmission reliability is improved, but transmission efficiency deteriorates due to repeated retransmissions occupying bandwidth
Solution Approach 1:
The patent applies dynamics by transitioning from fixed retransmission intervals to variable intervals that adapt based on actual transmission conditions. The retransmission interval is dynamically adjusted according to the time required for successful transmission, allowing the system to optimize between reliability and efficiency based on real-time performance data.
Solution Approach 2:
The patent changes the parameter of retransmission interval from a fixed value to a variable value that depends on transmission characteristics. By modifying this key parameter based on actual transmission time measurements, the system achieves both reliable delivery and efficient bandwidth utilization without repeated unnecessary retransmissions.
2Device complexity
If fixed retransmission intervals are used, then simple control is maintained, but bandwidth occupation increases due to repeated retransmissions
Solution Approach 1:
The patent implements feedback by measuring the actual time required for successful signal transmission and using this information to adjust retransmission intervals. This feedback mechanism allows the system to learn from actual performance and optimize bandwidth usage while maintaining manageable control complexity through automated adaptation.
Data Source
AI summary
The efficiency of signal transmission is improved. A communication apparatus includes a memory unit, a communication control unit, and an updating unit. A retransmission interval value is stored in the memory unit. The communication control unit transmits a first signal and receives a response signal corresponding to the first signal from a receiver. If the received response signal is a negative response signal, the first signal is retransmitted at a time interval longer than or equal to the retransmission interval value stored in the memory unit, from the transmission of the first signal. The updating unit updates the retransmission interval value stored in the memory unit, according to a time from the transmission of the first signal to the reception of the positive response signal corresponding to the first signal.