Transceiver Attenuation Estimation Power Control
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Solution Overview
Problem
Transceiver devices consume excessive power due to compliance with IEEE standards for output power, even for short transmission paths where signal attenuation is minimal, leading to power waste.
Innovation Solution
A transceiver device with an attenuation estimation module and control module that adjusts transmitter output power based on estimated attenuation values, reducing power consumption by lowering output power when attenuation is below a default value, and ensuring signal integrity through confirmation signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transmitter outputs signal at the output power prescribed by IEEE standard, then the signal transmission quality is ensured, but the power consumption increases significantly for short transmission paths
Solution Approach 1:
The transmitter's output power is made dynamic rather than fixed. The control module adjusts the output power based on real-time attenuation estimation, allowing the system to adapt to different transmission path conditions. This resolves the contradiction by enabling low power consumption for short paths while maintaining sufficient power for long paths with high attenuation.
Solution Approach 2:
The system changes the power parameter based on attenuation conditions. By estimating the attenuation value and comparing it with threshold values, the control module adjusts the output power parameter accordingly. This allows the transmitter to operate at optimal power levels for different transmission scenarios, reducing unnecessary power waste while ensuring signal quality.
2Adaptability or versatility
If the transmitter uses fixed output power compliant with IEEE standard, then the signal can be transmitted reliably over long distances, but power is wasted unnecessarily for short transmission paths
Solution Approach 1:
The system implements feedback through attenuation estimation. The control module continuously monitors the transmission path conditions by estimating attenuation values and uses this feedback to adjust the output power. This feedback mechanism allows the transmitter to adapt to different transmission distances and conditions, eliminating power waste while maintaining versatility.
Solution Approach 2:
The system performs preliminary attenuation estimation before actual signal transmission. By assessing the transmission path conditions in advance and adjusting the output power accordingly, the system avoids power waste from the outset. This preliminary action enables the transmitter to be optimized for the specific transmission scenario before operation begins.
Data Source
AI summary
A transceiver device and a power saving method thereof are provided. The transceiver device includes an attenuation estimation module, a transmitter, and a control module. The attenuation estimation module is coupled to a transmission path for estimating an attenuation value caused when a signal passes through the transmission path. The transmitter is coupled to the transmission path, for outputting a transmission signal. The control module is coupled to the attenuation estimation module and the transmitter. When the attenuation value is smaller than a default value, the output power of the transmitter is adjusted to be lower. Thereby, the power consumption of the transceiver device is decreased.