Steering Matrix Feedback for Beamforming Optimization
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Solution Overview
Problem
Existing wireless network devices face challenges in efficiently directing radio frequency signals, particularly in infrastructure and ad-hoc modes, which affects signal quality, range, and bandwidth.
Innovation Solution
A network device with a calibration module that receives a radio frequency signal to adjust beamforming weights based on a steering matrix, allowing for the transmission of this matrix to another device for beamforming optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If beamforming weights are adjusted using steering matrix feedback, then signal directionality and transmission efficiency are improved, but device complexity increases due to additional calibration and steering modules
Solution Approach 1:
The patent implements feedback mechanisms where receiving devices measure channel quality indicators (CQIs) and feed back steering matrices to transmitting devices. This feedback loop enables dynamic adjustment of beamforming weights based on actual channel conditions, improving transmission efficiency while managing complexity through standardized feedback protocols
Solution Approach 2:
The system enables devices to self-adjust beamforming parameters by autonomously determining steering matrices from feedback information and automatically updating beamforming weights without external intervention, reducing the need for complex centralized control mechanisms
2Reliability
If multiple transmit and receive antennas are employed to improve range and signal quality, then signal-to-noise ratio is enhanced, but device complexity and processing requirements increase
Solution Approach 1:
The patent introduces steering matrices as intermediary representations that capture essential channel state information. These matrices serve as compact mediators between the physical antenna array and the beamforming processing logic, enabling efficient computation and adjustment of beamforming weights without directly managing the full complexity of multiple antenna interactions
Solution Approach 2:
The system dynamically adjusts beamforming parameters (weights, steering matrices) based on changing channel conditions. By transforming the complex multi-antenna channel state into parameterized steering matrices, the system can efficiently adapt to varying signal quality requirements while managing computational complexity through parameter optimization
Data Source
AI summary
A first network device including a calibration module, a steering module, and a control module. The calibration module is configured to determine whether a second network device is capable of generating steering data for the first network device, wherein the steering data corresponds to data for steering signals in a desired direction. The steering module is configured to, if the second network device is not capable of generating the steering data for the first network device, receive channel state information from the second network device and determine the steering data based on the channel state information. The control module is configured to receive the steering data from the second network device if the second network device is capable of generating the steering data for the first network device.