Antenna Transmit Power Adjustment for Radiation Safety
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Solution Overview
Problem
Existing electronic devices face challenges in balancing transmit power to ensure safe electromagnetic radiation levels while maintaining communication quality, especially when multiple antennas simultaneously transmit signals.
Innovation Solution
A method and apparatus for dynamically adjusting the transmit power of each antenna based on their location relationship, ensuring that the communication performance is optimized while keeping the user in a safe radiation range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the transmit power of the antenna is reduced to lower electromagnetic radiation, then user safety is improved, but communication quality deteriorates
Solution Approach 1:
The patent implements dynamic transmit power adjustment by continuously monitoring the distance between antennas and dynamically changing power levels accordingly. The system transitions from static power settings to dynamic adaptation, allowing the transmit power to be adjusted in real-time based on antenna proximity, thus resolving the contradiction between safety and communication quality.
Solution Approach 2:
The system changes the transmit power parameter based on the distance parameter between antennas. When antennas are close together, the transmit power is reduced to minimize electromagnetic radiation; when antennas are far apart, higher power is permitted. This parameter-based adaptation allows the system to optimize both safety and communication quality under different operating conditions.
2Reliability
If the transmit power is increased to improve communication quality, then communication performance is improved, but electromagnetic radiation increases beyond safe levels
Solution Approach 1:
The system incorporates feedback mechanisms by monitoring antenna distance and using this information to adjust transmit power levels. The feedback loop continuously evaluates the spatial relationship between antennas and modifies power settings accordingly, ensuring that communication quality is maintained while electromagnetic radiation remains within safe limits.
Solution Approach 2:
The transmit power parameter is adjusted based on the distance parameter between antennas. The system establishes a relationship where power levels are modified according to spatial configuration, allowing high power when antennas are separated (reducing radiation overlap) and low power when antennas are close (preventing excessive cumulative radiation).
3Reliability
If multiple antennas simultaneously transmit at high power, then communication coverage is improved, but the superposition effect increases electromagnetic radiation beyond safe levels
Solution Approach 1:
The patent segments the power control for each antenna based on its spatial relationship with other antennas. Instead of uniform power control across all antennas, the system individually adjusts each antenna's transmit power according to its specific position and proximity to other transmitting antennas, thereby managing the superposition effect locally for each antenna pair.
Solution Approach 2:
The system modifies the transmit power parameter for each antenna based on the distance parameter to other antennas. When multiple antennas are close together, their individual power levels are reduced to prevent excessive superposition of electromagnetic fields. When antennas are well-separated, higher power levels are permitted, maintaining communication coverage while controlling cumulative radiation exposure.
Data Source
AI summary
A transmit power adjustment method, apparatus, and a system. The system is configured for obtaining a first distance between a first antenna and a second antenna, determining a first transmit power of the first antenna, and a second transmit power of the second antenna, wherein, when the first distance is greater than a first value, the first transmit power is at or below a first limit power, and the second transmit power is at or below a second limit power, or wherein, when the first distance is less than the first value, a sum of a first exposure ratio of the first transmit power and a second exposure ratio of the second transmit power is less than or equal to 1, and transmitting, a signal at the first transmit power through the first antenna and a signal at the second transmit power through the second antenna.