Wireless Transmitter-Receiver Power Control Mechanism
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Solution Overview
Problem
Conventional wireless terminals lack user control over transmission power, leading to increased energy consumption and reduced continuous operation time, especially in environments with weak radio base station signals, as they operate at maximum power to maintain communication symmetry.
Innovation Solution
Incorporating a transmission power controlling means and a reception sensitivity controlling means that can be adjusted by a single user operation, allowing the wireless transmitter-receiver to decrease transmission power and adjust reception sensitivity accordingly to conserve energy while maintaining communication symmetry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If transmission power is decreased to save energy, then power consumption is reduced and continuous operation time is elongated, but communication symmetry becomes incompatible and reception sensitivity must be decreased accordingly
Solution Approach 1:
The patent combines the control of transmission power and reception sensitivity into a single integrated control mechanism. When the user operates to decrease transmission power, the system simultaneously adjusts reception sensitivity to maintain communication symmetry. This merging of previously independent controls resolves the contradiction by ensuring that energy savings do not compromise communication reliability.
Solution Approach 2:
The system changes multiple parameters (transmission power and reception sensitivity) in a coordinated manner. By adjusting both parameters together based on user operation, the system maintains the balance of communication symmetry while achieving energy conservation. The transmission power is decreased to save energy, and reception sensitivity is proportionally decreased to preserve symmetry.
2Duration of action of moving object
If transmission power is controlled by user operation, then energy consumption can be managed and continuous operation time is elongated, but the system complexity increases due to additional control means
Solution Approach 1:
The control means is designed to perform multiple functions simultaneously. A single user operation triggers both transmission power reduction and reception sensitivity adjustment, making the control mechanism universal rather than requiring separate controls for each parameter. This multi-functionality reduces the perceived complexity from the user's perspective.
Solution Approach 2:
The system automatically adjusts reception sensitivity in response to user-operated transmission power changes. The control mechanism serves itself by internally coordinating the two parameters without requiring additional user input or complex external control systems. This self-service capability simplifies the overall control architecture.
Data Source
AI summary
Provided is a wireless transmitter-receiver capable of suppressing undesirable power consumption and elongating the continuous operation time by operation of a user with the intention of controlling transmission power and also suitable to secure the “symmetry of communication”.The wireless transmitter-receiver decreases the upper limit value of transmission power by an operation of an operation means 114 and decreases the reception sensitivity in accordance with the decreased upper limit value of transmission power. Thereby, a user can determine the upper limit value of transmission power of the wireless transmitter-receiver and manage the transmission power to suppress power consumption and elongate a continuous operation time. Moreover, the wireless transmitter-receiver can eliminate the influence of radio frequency electromagnetic field on a human body. Furthermore, the degree of imbalance in the “symmetry of communication” can be minimized.