Transceiver Amplifier Switching to Cut Receive-Mode Power Use
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Solution Overview
Problem
Current wireless communication devices face challenges in improving energy efficiency, particularly in managing power consumption between transmission and reception operations.
Innovation Solution
The implementation of a transceiver architecture that uses switches and amplifiers to disconnect the power amplifier during reception, allowing the first and second amplifiers to handle signal amplification, thereby reducing power consumption and enhancing overall efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the power amplifier is continuously connected to handle both transmission and reception, then the device can maintain high transmission power capability, but power consumption increases significantly during reception operations
Solution Approach 1:
The patent segments the amplification function into two separate paths: a power amplifier path for transmission and an amplification path for reception. The power amplifier is dedicated to transmit operations while the amplification path (comprising first and second amplifiers) handles receive operations, allowing independent optimization and energy-saving operation of each path.
Solution Approach 2:
The patent extracts the power amplifier from the receive signal path by using switches to disconnect it during reception. This separation allows the power amplifier to be turned off or idle during receive operations, eliminating unnecessary power consumption while maintaining receiver performance through the dedicated amplification path.
2Use of energy by moving object
If the power amplifier is disconnected during reception to save power, then energy efficiency improves, but the device must maintain alternative amplification capability
Solution Approach 1:
The patent merges the transmit and receive amplification functions into a unified architecture where the power amplifier and the amplification path share common components (first switch, second switch, third switch) and can operate sequentially. This consolidation reduces overall system complexity compared to having completely separate transmit and receive chains while enabling energy-efficient operation.
Solution Approach 2:
The patent employs dynamic switching between transmit and receive modes using controllable switches. The first switch connects the power amplifier during transmission and disconnects it during reception, while the second switch routes signals appropriately. This dynamic reconfiguration allows the system to adapt its amplification path based on operational mode, optimizing energy efficiency without sacrificing functionality.
Data Source
AI summary
Disclosed is an apparatus comprising means for transmitting a first signal via at least a first switch, a first amplifier, a second switch and a power amplifier, wherein an output of the second switch is connected to a power amplifier path comprising at least the power amplifier, while transmitting the first signal. An input of the first switch and the output of the second switch are switched to switch between transmitting and receiving. A second signal is received via at least the first switch, the first amplifier and the second switch, wherein the output of the second switch is disconnected from the power amplifier path while receiving the second signal.