Power Modulator Switching for Simultaneous Multi-PA Uplink Transmission
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Solution Overview
Problem
Existing electronic devices face challenges in efficiently supporting uplink carrier aggregation (CA) and EN-DC operations in 4G/5G communication schemes due to limitations in power amplifier (PA) control, particularly when multiple PAs need to be controlled simultaneously.
Innovation Solution
The electronic device incorporates a wireless communication circuit with multiple power amplification circuits, a first and second power modulator, and a power switch. This configuration allows the device to identify and connect the appropriate power amplification circuits to either the first or second power modulator, enabling simultaneous transmission of signals across different frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple power amplification circuits are controlled simultaneously to support uplink carrier aggregation and EN-DC operations, then the communication functionality and frequency band coverage are improved, but the device complexity and circuit line complexity increase
Solution Approach 1:
The patent merges multiple power modulation functions into a single shared power modulator that can dynamically allocate power to multiple power amplification circuits. This consolidation reduces the number of separate power modulation paths and associated circuit lines, thereby maintaining support for uplink carrier aggregation and EN-DC operations while reducing overall circuit complexity.
Solution Approach 2:
The patent implements a universal power modulator that can serve multiple power amplification circuits across different frequency bands simultaneously. This multi-functional design allows a single power modulation unit to adaptively control multiple PAs, reducing the need for dedicated power modulation circuits for each PA and thereby simplifying the overall device architecture.
2Adaptability or versatility
If multiple power amplification circuits are controlled simultaneously, then the frequency band coverage is improved, but the mounting space requirements increase
Solution Approach 1:
The patent combines multiple power modulation functions into a single shared power modulator unit that can dynamically allocate power to multiple power amplification circuits. This merging approach reduces the total component count and mounting space required, while maintaining support for multiple frequency bands through efficient resource sharing.
Solution Approach 2:
The patent employs a universal power modulator designed to serve multiple power amplification circuits simultaneously across different frequency bands. This multi-functional component reduces the overall footprint by eliminating the need for separate dedicated power modulation circuits for each frequency band, thereby conserving mounting space while maintaining broad frequency coverage.
3Measurement precision
If separate power modulators are used for each power amplification circuit, then the power control precision is improved, but the device complexity and cost increase
Solution Approach 1:
The patent introduces a power switch as an intermediary component between the shared power modulator and multiple power amplification circuits. This power switch enables the single power modulator to precisely control and allocate power to different PAs dynamically, maintaining power control precision while avoiding the need for separate dedicated power modulators for each PA, thereby reducing device complexity and cost.
Solution Approach 2:
The patent implements dynamic power allocation through a controllable power switch that can rapidly redirect power from the shared modulator to different power amplification circuits based on real-time communication requirements. This dynamic switching mechanism maintains precise power control for each PA while using a single power modulator, thus reducing component quantity and overall device complexity.
Data Source
AI summary
An electronic device and a method for wireless communication are provided. The electronic device includes a wireless communication circuit, a plurality of power amplification circuits, a first power modulator and a second power modulator configured to adjust a voltage output to at least one power amplification circuit connected among the plurality of power amplification circuits, a power switch configured to connect a first power amplification circuit among the plurality of power amplification circuits to the first power modulator or the second power modulator, memory storing one or more computer programs, and one or more processors communicatively coupled to the wireless communication circuit and the memory, wherein the one or more computer programs include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the electronic device to identify power amplification circuits for amplifying, respectively, transmission signals input to the wireless communication circuit, based on the identified power amplification circuits being connected to the first power modulator, control the power switch to connect the first power amplification circuit among the identified power amplification circuits to the second power modulator to simultaneously transmit the transmission signals using the identified power amplification circuits, and based on the identified power amplification circuits being connected to the first power modulator and second modulator, respectively, control the power switch to connect the first power amplification circuit among the identified power amplification circuits to the first power modulator to simultaneously transmit the transmission signals using the identified power amplification circuits.