Mobile Station Antenna Diversity Control
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Solution Overview
Problem
Receiving diversity in mobile stations increases power consumption and can degrade performance due to high attenuation in different antenna paths, and existing methods fail to dynamically control the main antenna and often result in performance degradation.
Innovation Solution
A method for controlling receiving diversity by determining single antenna receiving quality indicators for all activated antennas and deactivating all except the one with the best quality when the receiver quality is above a certain threshold, and dynamically turning on or off antennas based on quality indicators to reduce power consumption and prevent performance degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If receiving diversity is activated using multiple antennas, then signal quality and reliability are improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic antenna selection where the receiver evaluates receiving quality indicators (such as signal strength, SNR, or BER) from multiple antennas and dynamically selects the single antenna with the best quality. This dynamic switching allows the system to maintain signal quality when needed while consuming minimal power by activating only one antenna at a time, rather than keeping multiple antennas continuously active.
Solution Approach 2:
The system changes the operational state of antennas based on received signal quality parameters. When the receiving quality indicator exceeds a predetermined threshold, the system transitions from diversity mode to single-antenna mode, adjusting the number of active antennas according to the measured signal conditions to optimize the power-quality tradeoff.
2Reliability
If receiving diversity is activated using multiple antennas, then channel diversity is enhanced, but device complexity increases
Solution Approach 1:
The patent extracts the essential function of diversity reception by selectively using only the single antenna that provides the best receiving quality, rather than continuously processing signals from all antennas. This extraction approach maintains the benefits of having multiple antennas available while simplifying the active receiver configuration to a single antenna, reducing processing complexity.
Solution Approach 2:
The system dynamically adjusts the number of active antennas based on channel conditions. When channel diversity is needed (poor signal conditions), multiple antennas are available for selection. When channel conditions are good, only the best antenna is activated. This dynamic adaptation reduces the average complexity of the receiver while maintaining diversity benefits when required.
3Reliability
If all activated antennas are kept on continuously, then receiving quality is maintained, but power consumption increases
Solution Approach 1:
The patent implements dynamic antenna selection where the receiver evaluates receiving quality indicators (such as signal strength, SNR, or BER) from multiple antennas and dynamically selects the single antenna with the best quality. This dynamic switching allows the system to maintain signal quality when needed while consuming minimal power by activating only one antenna at a time, rather than keeping multiple antennas continuously active.
Solution Approach 2:
The system changes the operational state of antennas based on received signal quality parameters. When the receiving quality indicator exceeds a predetermined threshold, the system transitions from diversity mode to single-antenna mode, adjusting the number of active antennas according to the measured signal conditions to optimize the power-quality tradeoff.
Data Source
AI summary
A method for controlling receiving diversity of a receiver and a mobile station are provided. The method comprises determining single antenna receiving quality indicators for all activated antennas if a receiver receiving quality indicator of the receiver is above a first threshold, and deactivating all the activated antennas except one activated antenna with a single antenna receiving quality indicator indicating best receiving quality based on the determined single antenna receiving quality indicators.