TX Power Amplifier Inter-Ramp Control Curve
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional TX power amplifiers in wireless communication systems consume excessive power, especially in the inter-ramp division where no data is transmitted, and require large memory spaces to store numerous power control curves due to linear power variation methods.
Innovation Solution
A method and apparatus that generate a power control curve with a concave inter-ramp control curve, reducing power amplitude in guard areas by dividing the original curve into sections and scaling them based on transmission power values, thereby reducing power consumption and memory requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If linear power control curves are used in the inter-ramp division, then power transformation between time slots is achieved, but excessive power is consumed in guard areas where no data is transmitted
Solution Approach 1:
The patent applies a concave curve instead of a straight line for the inter-ramp power control. This curved approach allows the power amplitude to dip below the linear path during the guard period, reducing power consumption when no data is transmitted, while still ensuring reliable power transformation between time slots with different power levels.
2Speed
If numerous ramp-up and ramp-down control curves are stored in memory for various power amplitudes, then rapid power control is achieved, but large memory space is required
Solution Approach 1:
The patent segments the power control function into distinct components: ramp-up curves, ramp-down curves, and inter-ramp curves. By separating these functions and storing them independently, the system can rapidly select and apply the appropriate curve segment without requiring memory to store all possible combined power control scenarios, thus reducing memory requirements while maintaining fast power control response.
Solution Approach 2:
The patent generates inter-ramp control curves on-demand using a generation unit that combines stored ramp-up and ramp-down curve segments. Instead of pre-storing all possible inter-ramp curves for every power amplitude combination, the system generates only the specific inter-ramp curve needed at each transition, reducing memory requirements while ensuring appropriate power control for each scenario.
3Adaptability or versatility
If many inter-ramp control curves are pre-calculated and stored for all possible power amplitude combinations, then complete power transformation coverage is achieved, but operational complexity increases
Solution Approach 1:
The patent creates a universal power control architecture where the same ramp-up and ramp-down curve segments can be combined in different ways to serve multiple inter-ramp scenarios. The inter-ramp generation unit acts as a multi-functional component that can generate appropriate control curves for any power amplitude transition by combining the stored basic curve segments, thereby achieving complete power transformation coverage without requiring separate pre-calculated curves for each scenario.
Data Source
AI summary
A method and an apparatus for controlling a TX power amplifier are provided in the present invention. The invention is applied for generating a power control curve in a power variation area to control the power variation for signal transmission when the TX power amplifier transmits the data during two continuous time slots, which are a first time slot and a second time slot, respectively have a first transmission power value K1 and a second transmission power value K2. The invention is aimed at producing a concave inter-ramp control curve in a inter-ramp division of the power variation area for controlling the power variation of the TX power amplifier, where the power for signal transmission is transformed from the first transmission power value K1 to the second transmission power value K2.