RF Processing Circuit Antenna Switching for Wireless Interference
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Solution Overview
Problem
Conventional wireless communication devices face inefficiencies due to the inability to select the optimal antenna for wireless signals based on channel qualities and operation frequency bands, leading to mutual interference between signals operating on the same or neighboring frequency bands.
Innovation Solution
The implementation of a radio-frequency (RF) processing circuit that dynamically adjusts connections between communication modules and antennas according to operation frequency bands and channel conditions, utilizing a control unit and RF front-end circuit with a switch module and frequency multiplexing module to optimize antenna selection for each communication module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple wireless communication modules operate on the same frequency band simultaneously, then the device can support multiple communication standards, but mutual interference occurs between signals and transmission efficiency deteriorates
Solution Approach 1:
The patent segments the antenna resources by introducing multiple antenna groups (first antenna group and second antenna group) that are separately coupled to different communication modules. This segmentation allows simultaneous operation of multiple communication standards without mutual interference, as each module has dedicated antenna resources.
Solution Approach 2:
The patent introduces an RF processing circuit as an intermediary component that manages the coupling between communication modules and antenna groups. This intermediary enables dynamic switching and routing of signal paths, allowing the system to adapt to different communication standards while preventing interference through controlled signal routing.
2Device complexity
If a single antenna is shared by multiple communication modules, then device complexity is reduced, but transmission efficiency deteriorates due to inability to select optimal antenna based on channel conditions
Solution Approach 1:
The patent implements dynamic antenna selection by enabling communication modules to switch between different antenna groups based on channel conditions. The RF processing circuit dynamically adjusts the coupling state between modules and antenna groups, allowing the system to adapt to varying transmission environments and select optimal antenna configurations in real-time.
Solution Approach 2:
The patent creates a universal antenna system where multiple antenna groups serve multiple communication modules. Each antenna group can be coupled to different modules through the RF processing circuit, allowing the antenna resources to be universally utilized across different communication standards and channel conditions, thereby improving transmission efficiency without proportionally increasing device complexity.
3Reliability
If wireless signals of different frequency bands use different antennas, then channel quality optimization is improved, but device complexity and antenna management complexity increase
Solution Approach 1:
The patent implements feedback mechanisms where communication modules evaluate channel conditions and provide feedback to the RF processing circuit. Based on this feedback, the RF processing circuit adjusts the coupling configuration between modules and antenna groups, enabling automatic optimization of channel quality without requiring complex manual antenna management.
Solution Approach 2:
The patent enables communication modules to autonomously select and couple with appropriate antenna groups based on their own channel quality assessments. Each module can independently manage its antenna coupling through the RF processing circuit, reducing the overall system complexity by distributing the antenna management function to individual modules rather than requiring centralized complex control.
Data Source
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AI summary
A radio frequency (RF) processing circuit used in a wireless communication device for processing a plurality of wireless signals is disclosed. The RF processing circuit comprises an RF front-end circuit, coupled to a plurality of antennas and a plurality of communication modules for switching connections between the plurality of antennas and the plurality of communication modules according to a control signal; and a control unit, coupled to the RF front-end circuit for generating the control signal according to a frequency band and operation conditions of each communication module; wherein the control unit controls the RF front-end circuit to connect each communication module and one of the plurality of antennas, and the wireless communication modules which are connected to a same antenna correspond to different frequency bands.