Antenna Transmission Power Adjustment for Path Loss
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Solution Overview
Problem
Antenna devices experience performance degradation due to proximity of objects, leading to reduced communication range and battery life issues, as auto-tuning may not adequately increase transmission power to maintain communication links in non-ideal environments.
Innovation Solution
The antenna device adjusts its transmission power based on environmental conditions by querying its surroundings to determine path loss, using reflected signal amplitude and time to decide whether to increase power and maintain communication links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If auto-tuning is used to adjust transmission parameters for efficient operation, then energy efficiency is improved, but communication reliability deteriorates when path loss occurs
Solution Approach 1:
The system transmits query signals and analyzes reflected signals to detect path loss conditions, then provides feedback to adjust transmission power accordingly. This closed-loop feedback mechanism allows the system to maintain communication reliability while managing energy consumption by only increasing power when path loss is detected.
Solution Approach 2:
The system dynamically changes transmission power parameters based on detected environmental conditions. When path loss is detected through signal analysis, the transmission power is increased from the auto-tuned efficient level to maintain communication reliability, thus resolving the contradiction between energy efficiency and communication reliability.
2Reliability
If transmission power is increased to maintain communication links in non-ideal environments, then communication reliability is improved, but battery life deteriorates
Solution Approach 1:
Instead of continuously operating at high transmission power, the system applies partial action by increasing power only when and where needed - specifically when path loss is detected through query signal analysis. This selective power increase maintains communication reliability while minimizing the impact on battery life.
Solution Approach 2:
The system performs preliminary detection by transmitting query signals and analyzing reflected signals before attempting communication. This preliminary action identifies path loss conditions in advance, allowing the system to adjust transmission power proactively only when necessary, thus maintaining reliability while conserving battery life.
3Use of energy by moving object
If auto-tuning operates at the most efficient point, then energy efficiency is improved, but communication range deteriorates when objects cause path loss
Solution Approach 1:
The system dynamically adjusts transmission power based on real-time environmental conditions detected through query signal analysis. Rather than operating statically at the most efficient point, the system transitions between power levels as needed, maintaining effective communication range while preserving energy efficiency in ideal conditions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach ensures reliable message delivery in non-ideal environments by compensating for path loss, although it may temporarily reduce battery life, thereby maintaining communication links.
Implementation Method 1
receiving a reflected signal from an environment surrounding the antenna device
Data Source
AI summary
Example implementations relate to adjusting radiofrequency transmission power of antenna devices consistent with the disclosure. For example, a non-transitory machine-readable medium storing instructions executable by a processing resource to transmit a signal using a first transmission power to query an environment surrounding an antenna device to determine whether an object is causing path loss along a communication link, and adjust a transmission power of the antenna device to a second transmission power based on a determination that an object is causing path loss along the communication link.