Wireless Transmission Rate Selection for Lower Retransmission Power
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Solution Overview
Problem
Existing electronic devices face challenges in optimizing data transmission rates to balance power consumption and reliability, leading to increased power usage due to retransmissions when data fails at higher transmission rates.
Innovation Solution
An electronic device adjusts data transmission rates based on expected power consumption and failure rates, selecting the most efficient rate to minimize power usage while ensuring reliable data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a high transmission rate is selected based on expected throughput, then data transmission speed is improved, but power consumption increases due to retransmissions
Solution Approach 1:
The system estimates the failure rate of data transmission based on signal attenuation and adjusts the transmission rate dynamically. By incorporating feedback about transmission conditions and failure rates, the system optimizes the transmission rate to balance speed and power consumption, avoiding excessive retransmissions that would increase energy use.
Solution Approach 2:
The system changes the transmission rate parameter based on estimated failure rates and signal conditions. By adjusting this key parameter dynamically rather than using a fixed high rate, the system achieves optimal balance between transmission speed and power consumption, reducing unnecessary retransmissions.
2Productivity
If a high transmission rate is selected, then throughput is improved, but reliability of data transmission deteriorates
Solution Approach 1:
The system uses feedback about signal attenuation and estimated failure rates to adjust the transmission rate. This closed-loop approach ensures that throughput is maximized while maintaining reliability by adapting to changing channel conditions and avoiding rates that would cause excessive failures.
Solution Approach 2:
The transmission rate is made dynamic rather than static, adjusting based on real-time estimates of failure rate and signal conditions. This dynamic adaptation allows the system to maintain high throughput when conditions permit while ensuring reliability when signal quality degrades.
3Reliability
If retransmission is performed to ensure reliable data transmission, then reliability is improved, but active time of wireless circuit increases
Solution Approach 1:
The system performs preliminary estimation of the failure rate based on signal attenuation before actual data transmission. By predicting potential failures in advance, the system can pre-adjust the transmission rate to prevent failures, thereby improving reliability without requiring retransmissions that would extend active circuit time.
Solution Approach 2:
The system takes preliminary action to counteract potential transmission failures by estimating failure rates and adjusting the transmission rate beforehand. This preventive approach opposes the harmful effect of retransmissions by eliminating the need for them, thus reducing active circuit time while maintaining reliability.
Data Source
AI summary
The disclosure relates to a device and a method for adjusting a transmission rate in an electronic device. The electronic device includes a memory, a communication circuit, and at least one processor operatively connected to the memory and the communication circuit, wherein the at least one processor when wireless communication with an external electronic device is performed, identifies an expected first power consumption amount of a first transmission rate on the basis of the first transmission rate and a failure rate of data transmission related to the first transmission rate, identifies an expected second power consumption amount of a second transmission rate on the basis of the second transmission rate and a failure rate of data transmission related to the second transmission rate, selects, as a data transmission rate, the first transmission rate or the second transmission rate on the basis of the first power consumption amount and the second power consumption amount, and transmits data to the external electronic device on the basis of the selected data transmission rate.