Antenna Power Control for 5G Devices
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Solution Overview
Problem
In wireless communication systems, particularly in 5G and pre-5G networks, controlling transmission power across multiple antennas increases power consumption, as each antenna requires independent power amplification, leading to inefficiencies and higher energy usage.
Innovation Solution
An electronic device implements a method to differentially control transmission power across multiple antennas by calculating a target transmission power based on antenna gain differences, allowing for optimized power allocation between 'good' and 'bad' antennas, thereby reducing overall power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple antennas are used to simultaneously output the same PCC signals in a transmission diversity system, then transmission reliability is improved, but power consumption increases
Solution Approach 1:
The patent applies local quality by differentiating the power control approach for different antennas. Instead of uniform power control, the system identifies 'good' antennas with higher gain and 'bad' antennas with lower gain, then applies different power control strategies to each. Good antennas receive higher power allocation while bad antennas receive reduced power, optimizing the balance between transmission reliability and power consumption.
Solution Approach 2:
The patent implements dynamic power control where the base station determines power control parameters based on real-time antenna performance feedback. The system dynamically adjusts power allocation for each antenna based on measured gain characteristics, allowing the transmission diversity system to adaptively optimize reliability and power consumption under varying channel conditions.
2Reliability
If transmission power is increased to compensate for antenna efficiency reduction due to surrounding environment, then signal transmission reliability is maintained, but power consumption increases
Solution Approach 1:
The patent addresses environmental impact on antenna efficiency by applying local quality through differential power control. Instead of uniformly increasing power for all antennas, the system identifies which specific antennas are affected by environmental factors and compensates only those, while maintaining reduced power for antennas operating in favorable conditions.
Solution Approach 2:
The patent employs feedback mechanisms where the base station receives information about antenna performance and surrounding environmental conditions, then uses this feedback to determine appropriate power control parameters. This closed-loop approach allows the system to compensate for environmental effects on antenna efficiency while minimizing unnecessary power consumption increases.
Data Source
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AI summary
An electronic device includes a housing; a first antenna located at a first part of the housing; a second antenna located at a second part separated from the first part of the housing; a transceiver configured to generate a first signal and a second signal; a first coupler electrically connected between the first antenna and the transceiver and configured to receive the first signal from the transceiver and provide the received first signal to the first antenna; a second coupler electrically connected to the second antenna and the transceiver and configured to receive the second signal from the transceiver and provide the received second signal to the second antenna; and a control circuit operationally connected to the transceiver, wherein the control circuit is configured to determine at least one value related to gains of the first signal and the second signal based at least partially on the signals provided from the first coupler and the second coupler, determine whether the first signal has a higher gain than that of the second signal, and allow the first signal to have increased transmission power and the second signal to have reduced transmission power based at least partially on the at least one value related to the gains.