Power Amplifier Gain Switching for Mobile Uplink Power Control
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Solution Overview
Problem
The increasing demand for radio bandwidth in mobile communication devices leads to higher power consumption in power amplifiers, which negatively impacts battery life and circuit performance due to the need for multiple gain modes that overlap, complicating the determination of power amplifier switch points.
Innovation Solution
A power control method that dynamically adjusts the gain switch range for power amplifiers based on transmit power control information and internal information, switching between low-gain and high-gain modes to optimize power usage and extend battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If multiple gain modes are deployed to increase Power Added Efficiency of the power amplifier, then power efficiency is improved, but device complexity increases due to overlapping gain modes complicating the determination of power amplifier switch points
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the power amplifier switch points (PASP) based on operating conditions. Instead of using fixed PASP values, the system modifies the switch point parameters in real-time to optimize the transition between gain modes, thereby simplifying the determination process while maintaining high power efficiency across varying operating conditions
Solution Approach 2:
The patent implements dynamics by making the power amplifier switch points adaptive rather than static. The PASP values are dynamically adjusted based on current operating conditions, allowing the system to automatically optimize the transition points between gain modes without requiring complex manual configuration or overlapping gain mode designs
2Stability of the object's composition
If multiple gain modes with overlapping coverage are used to ensure continuous power output, then power stability is improved, but battery life decreases due to increased power consumption
Solution Approach 1:
The patent changes the parameters of power amplifier switch points dynamically based on actual operating conditions. By adjusting PASP values in real-time, the system can maintain stable power output with fewer gain modes, reducing overall power consumption and extending battery life while ensuring continuous and stable linear transmit power
3Ease of operation
If fixed power amplifier switch points are used to simplify control, then ease of operation is improved, but adaptability decreases when communication conditions vary
Solution Approach 1:
The patent transforms the static control approach into a dynamic one by making power amplifier switch points adaptive. The system automatically adjusts PASP values based on varying communication conditions, maintaining both ease of operation (automatic adjustment) and high adaptability (condition-responsive optimization) without requiring complex manual intervention
Data Source
AI summary
Mobile devices and power control methods thereof are provided. The power control method, performed by a mobile device, includes: receiving internal information from a memory device; determining an output power range of an amplifier according to the internal information; determining a an amplifier gain switch range of the amplifier based on the output power range, when a transmit power of an uplink signal is within the amplifier gain switch range, amplifying the uplink signal with a first gain mode; and when the transmit power of the uplink signal is outside of the amplifier gain switch range, amplifying the uplink signal with a second gain mode.