Power Amplifier Groups with Independent Modulators for Carrier Aggregation
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Solution Overview
Problem
Conventional electronic devices face inefficiencies in uplink carrier aggregation, particularly with multiple power amplifiers, as they struggle to support simultaneous operations across various frequency bands, leading to inadequate performance in uplink carrier aggregation and pseudo band operations.
Innovation Solution
The implementation of an electronic device with multiple power modulators and power amplifiers, along with a communication processor that controls voltage output for each group, enables efficient two-uplink and three-downlink carrier aggregation by selectively connecting antennas and power amplifiers to support diverse frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single power modulator is used to support multiple power amplifiers for uplink carrier aggregation, then device complexity is reduced, but the ability to efficiently support simultaneous uplink operations across multiple frequency bands deteriorates
Solution Approach 1:
The system divides the power modulation function into multiple independent power modulators (first power modulator and second power modulator), each dedicated to specific power amplifier groups. This segmentation allows each modulator to independently control power for different frequency bands, enabling efficient uplink carrier aggregation while maintaining manageable device complexity through modular architecture.
Solution Approach 2:
The power modulators and power amplifier groups are designed with multi-functionality to support various frequency bands (first frequency band, second frequency band, third frequency band). Each power modulator can serve multiple power amplifiers, and each power amplifier group can operate across different bands, providing universal support for diverse uplink carrier aggregation configurations.
2Adaptability or versatility
If multiple power amplifiers are configured for different frequency bands to support uplink carrier aggregation, then adaptability improves, but device complexity increases
Solution Approach 1:
Power amplifiers are designed as multi-functional components that can operate across multiple frequency bands. The first power amplifier group can support both the first frequency band and the second frequency band, while the second power amplifier group can support the second frequency band and the third frequency band. This universality reduces the total number of power amplifiers needed while maintaining comprehensive frequency band support.
Solution Approach 2:
The system implements dynamic switching capabilities through the antenna unit and path selector, allowing flexible allocation of power amplifiers to different frequency bands based on operational requirements. The antenna unit can selectively connect to different power amplifier groups, and the path selector dynamically routes signals between power amplifiers and frequency bands, enabling adaptive resource allocation that reduces overall device complexity.
3Adaptability or versatility
If power amplifiers are operated independently with different output powers for uplink carrier aggregation, then adaptability improves, but power efficiency deteriorates
Solution Approach 1:
The communication processor implements feedback control by monitoring the output power of power amplifiers and adjusting the voltage output from power modulators accordingly. The communication processor changes the voltage output based on the transmit power of connected power amplifiers, creating a closed-loop control system that optimizes power efficiency while maintaining independent power control capability for different frequency bands.
Solution Approach 2:
The system dynamically adjusts the voltage parameter output from power modulators based on operational requirements. The communication processor modifies voltage levels in real-time according to the transmit power demands of different power amplifier groups, enabling efficient power management across multiple frequency bands by changing electrical parameters adaptively rather than operating at fixed power levels.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enhances data transmission and reception rates while reducing power consumption by optimizing power output across multiple frequency bands, thereby improving the overall performance of carrier aggregation operations.
Implementation Method 1
a first power amplifier (PA) group and a second power amplifier (PA) group
Implementation Method 2
a first power modulator connected to the first PA group and a second power modulator connected to the second PA group
Data Source
AI summary
The present invention relates to an electronic device and, more particularly, to an electronic device and a method for transmitting and receiving signals. To this end, the electronic device according to the present invention may comprise: a transceiving unit comprising a first group of power amplifiers (PAs) including at least one PA and a second group of PAs including at least one PA; an antenna unit comprising a first antenna selectively coupled to a PA supporting a first frequency range or a second frequency range of the first group of PAs and the second group of the PAs, and a second antenna selectively coupled to a PA supporting the second frequency range or a third frequency range of the first group of PAs and the second group of the PAs; a power supply unit comprising a first power supply modulator connected to the first group of PAs and a second power supply modulator connected to the second group of PAs; and a communication processor for changing an output voltage at least in part on the basis of transmit power of the PA coupled to at least one of the first power supply modulator and the second power supply modulator, wherein at least one of the first group of PAs and at least one of the second group of PAs are capable of transmitting signals simultaneously.