RF Power Amplifier Sharing Without Bridge Loss or Leakage
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Solution Overview
Problem
Existing power sharing methods between multiple power amplifiers in a radio frequency unit introduce additional insertion loss and leakage interference due to the use of digital and analog bridges, and fail to efficiently manage heat dissipation across different power amplifiers with varying power requirements.
Innovation Solution
A method and apparatus that dynamically adjust power requirements and heat dissipation indexes between power amplifiers based on their positions and signal types within an antenna array, allowing power sharing without additional hardware and reducing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If power sharing between multiple power amplifiers is implemented using digital bridge and analog bridge, then power sharing between different power amplifiers is achieved, but additional insertion loss is introduced and additional power loss increases
Solution Approach 1:
The patent extracts and removes the digital bridge and analog bridge from the power sharing system. By eliminating these bridge components, the system achieves power sharing between power amplifiers without introducing additional insertion loss or power loss, directly resolving the technical contradiction between power sharing capability and energy efficiency
Solution Approach 2:
The patent introduces a power management unit as an intermediary that dynamically adjusts the operating powers of different power amplifiers based on their heat dissipation indexes and signal requirements. This mediator enables power sharing without requiring physical bridges, thereby avoiding the associated power losses while maintaining adaptability
2Adaptability or versatility
If digital bridge and analog bridge are introduced for power sharing, then power sharing between different power amplifiers is enabled, but leakage interference between different power amplifiers occurs
Solution Approach 1:
The patent removes the digital bridge and analog bridge components that cause leakage interference. By eliminating these bridging elements, the system achieves power sharing between power amplifiers without introducing the harmful leakage interference that would otherwise occur
Solution Approach 2:
The power management unit serves as an intermediary that coordinates power distribution among power amplifiers through software control rather than physical bridges. This approach enables power sharing while avoiding the leakage interference inherent in bridge-based architectures
3Power
If output power of first power amplifier is increased to meet high required power, then signal transmission requirement is satisfied, but heat dissipation index becomes insufficient and safety is compromised
Solution Approach 1:
The patent dynamically changes the heat dissipation index parameter of power amplifiers based on their actual output power requirements. The power management unit adjusts the heat dissipation indexes in real-time, allowing power amplifiers to operate at higher output powers while maintaining safety by coordinating heat dissipation management across the system
Solution Approach 2:
The patent makes the heat dissipation index a shared resource among multiple power amplifiers. The power management unit allocates and shares heat dissipation indexes dynamically, allowing any power amplifier to access the heat dissipation capacity of others when needed, thereby enabling high power operation while maintaining overall system safety
4Productivity
If heat dissipation index is shared between power amplifiers, then power amplifier efficiency is improved and power loss is reduced, but complex heat dissipation coordination is required
Solution Approach 1:
The power management unit acts as a centralized intermediary that handles all heat dissipation coordination among power amplifiers. By concentrating the coordination function in a single management unit, the system achieves efficient heat dissipation sharing and improved power amplifier efficiency while avoiding the complexity that would arise from distributed coordination mechanisms
Data Source
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AI summary
This application provides a power sharing method and an apparatus, to implement power sharing between different power amplifiers. The method includes: determining a first required power of a first power amplifier and a second required power of a second power amplifier; and transmitting a first signal on a basis that an output power of the first power amplifier is the first required power, and transmitting a second signal on a basis that an output power of the second power amplifier is the second required power, where the first required power is greater than or equal to a nominal power, the second required power is less than or equal to the nominal power, and a heat dissipation index of the first power amplifier is greater than a heat dissipation index of the second power amplifier, where the nominal power is an average maximum output power of all power amplifiers in a radio frequency unit, the radio frequency unit includes the first power amplifier and the second power amplifier, and the first power amplifier and the second power amplifier correspond to different radio frequency channels.