Antenna Path Loss Ratio for Wireless Power Efficiency
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Solution Overview
Problem
In wireless communication systems, using multiple transmit (TX) antennas for signal transmission improves reliability but leads to significant power consumption, necessitating a method to enhance output efficiency.
Innovation Solution
An electronic device determines the path loss for each antenna and sets a power ratio based on this information to optimize TX power distribution across antennas, improving efficiency by differentially controlling power for each antenna.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the same signal is transmitted by using a plurality of TX antennas, then reliability of transmission is improved, but power consumption increases significantly
Solution Approach 1:
The patent applies local quality by differentiating the transmission characteristics of each antenna based on its specific path loss characteristics. Instead of uniform transmission across all antennas, each antenna is assigned a tailored power level according to its individual channel conditions, optimizing both reliability and power efficiency locally at each antenna element.
Solution Approach 2:
The patent implements dynamics by making the transmission power of each antenna adjustable and adaptive rather than fixed. The base station dynamically determines the power ratio for each antenna based on real-time path loss measurements, allowing the system to adapt to changing channel conditions and optimize power consumption while maintaining transmission reliability.
2Productivity
If uniform power is allocated to all TX antennas, then implementation is simple, but antenna output efficiency is reduced
Solution Approach 1:
The patent employs feedback mechanisms where the electronic device measures reference signals from each antenna and reports path loss information back to the base station. This feedback loop enables the base station to make informed decisions about power allocation, optimizing antenna output efficiency while managing complexity through structured information exchange rather than arbitrary complexity.
Solution Approach 2:
The patent applies parameter changes by modifying the transmission power parameter for each antenna based on measured path loss characteristics. Instead of using fixed power levels, the system dynamically adjusts power parameters according to channel conditions, thereby improving antenna output efficiency while maintaining manageable complexity through systematic parameter optimization.
Data Source
AI summary
Various embodiments of the disclosure relate to a 5th generation (5G) or pre-5G communication system for supporting a data transfer rate higher than that of a 4th generation (4G) communication system such as LTE (long term evolution). An operating method of an electronic device according to various embodiments may include: receiving a reference signal from a base station via a plurality of antennas; acquiring path loss values respectively corresponding to the antennas, based on the reference signal; determining at least two antennas among the antennas, based on frequency band information received from the base station; acquiring a ratio for the path loss values corresponding to the determined at least two antennas; and transmitting a signal via the at least two antennas, based on the acquired ratio.