Adaptive Beamforming Receiver for Wireless Networks
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Solution Overview
Problem
Existing multiple antenna wireless communication systems face challenges in determining the optimal beamforming scheme between digital and analog beamforming, as current methods do not adapt effectively to varying wireless channel conditions, leading to suboptimal performance in terms of coverage and capacity.
Innovation Solution
A method for a receiver to determine the wireless channel status based on SNR and SIR thresholds, selecting either digital or analog beamforming schemes accordingly, and adjusting the beamforming scheme dynamically to improve SNR for coverage-limited scenarios or system capacity for capacity-limited scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If digital beamforming is used, then receiving performance is improved, but implementation complexity increases
Solution Approach 1:
The patent implements a dynamic beamforming scheme that adapts between digital and analog beamforming based on channel conditions. The receiver determines wireless channel status and selects the appropriate beamforming mode (digital or analog) dynamically, allowing the system to optimize performance while managing complexity according to actual network conditions.
2Device complexity
If analog beamforming is used, then implementation complexity is reduced, but receiving performance deteriorates
Solution Approach 1:
The patent changes the operational parameters of the beamforming system by switching between digital and analog beamforming modes based on channel conditions. When channel conditions are good, analog beamforming is selected to reduce complexity; when conditions deteriorate, digital beamforming is activated to maintain performance, thus optimizing the trade-off between complexity and performance.
3Stability of the object's composition
If fixed beamforming scheme is used, then system stability is improved, but adaptability to channel conditions deteriorates
Solution Approach 1:
The patent implements a dynamic beamforming adaptation mechanism where the receiver continuously monitors wireless channel status (SNR, SIR) and selects between digital and analog beamforming schemes accordingly. This dynamic approach maintains system stability through structured decision-making while achieving high adaptability to varying channel conditions.
Solution Approach 2:
The patent employs feedback mechanisms where the receiver determines channel status based on measured SNR and SIR values, then uses this feedback to select the appropriate beamforming mode. This closed-loop feedback ensures the system adapts to channel conditions while maintaining stable operation through systematic decision-making.
Data Source
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AI summary
The embodiments of the present invention disclose a method for a receiver communicating with a transmitter in wireless network. The method comprises a step of determining a wireless channel status, a step of selecting a beamforming scheme according to the determined wireless channel status, the beamforming scheme being digital beamforming or analog beamforming, and a step of receiving data from the transmitter according to the selected beamforming scheme. There are also provided embodiments of receivers for adaptive beamforming in the wireless network.