Wireless Transceiver Signal Switching for Shared Observer Reception
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Solution Overview
Problem
The existing wireless transceiver systems require additional observer circuits for pre-distortion processing, leading to increased hardware costs due to the need for new circuitry.
Innovation Solution
A wireless transceiver design that reuses existing components, such as the down converter and digital-to-analog converter, using control switches to selectively connect signal paths, allowing the same components to function as both an observer and a receiver, thereby eliminating the need for new observer circuitry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If observer circuits are added to perform pre-distortion processing, then pre-distortion functionality is improved, but hardware costs increase
Solution Approach 1:
The patent makes the down converter and analog-to-digital converter perform dual functions: serving as both receiver components and observer circuit components for pre-distortion processing. By using control switches to selectively connect these components to different signal paths, the system eliminates the need for separate dedicated observer circuits, thereby reducing hardware costs while maintaining pre-distortion functionality
Solution Approach 2:
The patent merges the receiver signal path and the observer signal path by using the same down converter and analog-to-digital converter for both purposes. The control switches enable selective routing of signals to combine the functions of receiver and observer into a unified architecture, reducing overall system complexity and hardware requirements
Data Source
AI summary
Embodiments of the present disclosure disclose a wireless transceiver. The wireless transceiver includes a second control switch, and the second control switch may selectively connect a signal output end of a coupler or a signal output end of a low noise amplifier LNA to a signal input end of the down converter. Therefore, when the signal output end of the coupler is connected to the down converter, the coupler, the down converter, and the analog-to-digital converter ADC form an observer; when the second control switch connects the signal output end of the low noise amplifier LNA to the signal input end of the down converter, a transceiver antenna, the low noise amplifier LNA, the down converter, and the analog-to-digital converter ADC form a receiver. Therefore, the embodiments of the present disclosure can greatly save hardware costs of a system for implementing an observer circuit.