Full Duplex Antenna Array Mode Switching
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Solution Overview
Problem
Full duplex wireless communication devices using either antenna sharing or isolation schemes face performance issues in varying wireless environments, failing to achieve high throughput consistently due to limitations in spatial multiplexing and self-interference suppression.
Innovation Solution
A method and device that switch between antenna sharing and isolation modes, allowing each antenna to be used for both transmission and reception at the same frequency band or non-overlapping subbands, enabling flexible operation to adapt to changing environments and enhance throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If antenna sharing scheme is applied, then antenna utilization efficiency is improved, but self-interference suppression performance deteriorates
Solution Approach 1:
The patent implements dynamic switching between antenna sharing mode and antenna isolation mode based on real-time channel conditions. The system transitions from a static antenna configuration to a dynamic one where the operating mode adapts to varying wireless environments, thereby resolving the contradiction between antenna utilization efficiency and self-interference suppression performance.
Solution Approach 2:
The system changes the operational parameter of antenna configuration by switching between two distinct modes: antenna sharing mode (for high utilization) and antenna isolation mode (for high self-interference suppression). This parameter change allows the system to optimize performance based on channel conditions, resolving the technical contradiction.
2Object-generated harmful factors
If antenna isolation scheme is applied, then self-interference suppression performance is improved, but antenna utilization efficiency deteriorates
Solution Approach 1:
The system dynamically adjusts the antenna operating mode based on channel conditions, switching from antenna isolation mode to antenna sharing mode when channel conditions improve. This dynamic adaptation resolves the contradiction by optimizing antenna utilization efficiency while maintaining adequate self-interference suppression performance.
Solution Approach 2:
The system changes the operational parameter of antenna configuration by switching between antenna isolation mode (for high self-interference suppression) and antenna sharing mode (for high utilization). This parameter change enables the system to resolve the technical contradiction by adapting to different wireless environments.
3Productivity
If fixed antenna sharing mode is used, then spatial multiplexing gains are improved, but performance in varying wireless environments deteriorates
Solution Approach 1:
The patent implements dynamic mode switching between antenna sharing and antenna isolation based on real-time channel conditions. This dynamic adaptation allows the system to maintain high spatial multiplexing gains when conditions are favorable while achieving high self-interference suppression when conditions deteriorate, thereby resolving the contradiction between spatial multiplexing gains and adaptability to varying environments.
Solution Approach 2:
The system changes the operational parameter of antenna configuration dynamically, switching between modes that optimize for spatial multiplexing and modes that optimize for self-interference suppression based on channel conditions. This resolves the technical contradiction by adapting the parameter to varying wireless environments.
4Object-generated harmful factors
If fixed antenna isolation mode is used, then self-interference suppression is improved, but spatial multiplexing gains deteriorate
Solution Approach 1:
The system dynamically switches between antenna isolation mode and antenna sharing mode based on channel conditions. When channel conditions are good, it transitions to antenna sharing mode to maximize spatial multiplexing gains, while maintaining antenna isolation mode when self-interference suppression is critical. This dynamic adaptation resolves the contradiction between self-interference suppression and spatial multiplexing gains.
Solution Approach 2:
The system dynamically changes the operational parameter of antenna configuration, switching between modes that prioritize self-interference suppression and modes that prioritize spatial multiplexing gains based on real-time channel conditions. This resolves the technical contradiction by adapting the parameter to optimize overall system performance.
Data Source
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AI summary
The present disclosure provides a method implemented by a full duplex wireless communication device for communications using an array of antennas and the full duplex wireless communication device. The method comprises switching an operation mode of the full duplex wireless communication device between an antenna sharing mode, in which each of the antennas is used for both transmission and reception at a same frequency band, and an antenna isolation mode, in which said each of the antennas is used for either transmission or reception at the frequency band or for both transmission and reception at non-overlapping frequency subbands. The method further comprises performing full duplex wireless communications in one of the antenna sharing mode and the antenna isolation mode.