Radio Frequency Module with Change-over Switch for Flexible Signal Mode
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Solution Overview
Problem
Existing radio frequency modules, particularly dual and multiple frequency band modules, lack the ability to flexibly change between receiving and sending radio frequency signals for individual frequency bands and combined signals, limiting their operational versatility.
Innovation Solution
A radio frequency module design incorporating a first and second frequency band sub-module with a change-over switch that allows for flexible configuration to output signals from individual antenna interfaces or combine signals from both interfaces, enabling the module to switch between outputting a single frequency band, a dual frequency band, or a combined signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the A+B dual frequency band radio frequency module is configured to output combined signal of frequency band A and frequency band B, then the module can transmit multiple frequency bands through two antenna interfaces, but the module cannot receive or send individual frequency band signals separately in use
Solution Approach 1:
The patent applies dynamics by making the signal transmission path configurable through a switch mechanism. The switch can dynamically connect different signal lines (first signal line for frequency band A, second signal line for frequency band B, or third signal line for combined signal) to the antenna interface, allowing the module to adapt between single frequency band mode and combined frequency band mode without changing hardware structure.
Solution Approach 2:
The patent implements universality by designing the radio frequency module to perform multiple functions through a unified structure. The same antenna interface and basic module can handle both individual frequency band signals and combined frequency band signals by changing the connection configuration via the switch, eliminating the need for separate dedicated paths for different transmission modes.
2Adaptability or versatility
If the A+B dual frequency band radio frequency module is configured to output individual frequency band signals separately, then the module can receive or send frequency band A or frequency band B separately, but the module cannot output the combined signal of frequency band A and frequency band B in use
Solution Approach 1:
The switch mechanism enables dynamic reconfiguration of the signal transmission path. When individual frequency band transmission is needed, the switch connects the corresponding single frequency band signal line to the antenna interface. When combined signal transmission is needed, the switch connects the third signal line (carrying combined signal) to the antenna interface, providing flexible adaptation without structural changes.
Solution Approach 2:
The basic module is designed with universal capability to handle both individual and combined frequency band signals. By changing only the connection configuration via the switch rather than the hardware structure, the same physical module can serve multiple transmission modes, achieving multi-functionality with minimal complexity increase.
3Device complexity
If fixed connection between signal lines and antenna interfaces is used, then the module structure is simple, but the mode of receiving and sending radio frequency signal cannot be changed
Solution Approach 1:
The patent introduces a switch mechanism that adds minimal structural complexity while enabling dynamic reconfiguration of signal paths. The switch allows the system to transition between different transmission modes (single frequency band or combined frequency bands) by changing connections, providing adaptability without requiring complex reconfigurable hardware or multiple dedicated structures.
Data Source
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AI summary
The present invention discloses a radio frequency module, a device and a method for receiving and sending a radio frequency signal, and a base station system, relates to the field of communications technologies, and aims to flexibly change the mode of receiving and sending a radio frequency signal. The radio frequency module includes at least a first frequency band sub-module and a second frequency band sub-module. The first frequency band sub-module is connected with a first signal line, and an end of the first signal line is provided with a first antenna interface. The second frequency band sub-module is connected with a second signal line, and a third signal line is connected between the first signal line and the second signal line. A first change-over switch is arranged on the joint of the second signal line and the third signal line, and the first change-over switch can change over the mode of receiving and sending a radio frequency signal of the radio frequency module. The present invention is used to flexibly change the mode of receiving and sending a radio frequency signal.