User Equipment Polarization Correction via Signal Correlation
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Solution Overview
Problem
In urban environments, user equipment (UE) antennas receive mixed information due to misalignment of polarization orientations, causing horizontal and vertical polarized signals to be received by unintended antennas, leading to information overlap.
Innovation Solution
A method is implemented to determine correlation values for received signals at different times, calculate deviation angles between transmitted and received polarization orientations, and perform compensation using these angles to separate the information correctly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the UE uses antennas with fixed polarization orientations to receive signals, then the device complexity is reduced, but the information from different polarizations becomes mixed up due to misalignment
Solution Approach 1:
The patent applies dynamics by making the polarization orientation adjustable rather than fixed. The UE can dynamically adjust the polarization orientation of its antennas to match the transmitted signal's polarization, thereby preventing information mixing while maintaining simple antenna hardware architecture.
Solution Approach 2:
The patent changes the polarization orientation parameter of the antenna to resolve the mismatch between transmitted and received signals. By adjusting this parameter dynamically based on signal characteristics, the system maintains information separation without increasing device complexity.
2Loss of information
If the UE adjusts the polarization orientation to match transmitted signals, then the information separation is improved, but the device complexity increases due to additional adjustment mechanisms
Solution Approach 1:
The patent replaces mechanical polarization adjustment mechanisms with a signal processing approach. Instead of physically reorienting antennas, the system uses correlation analysis and mathematical transformations to separate polarized signals, achieving the same effect with simpler electronic processing.
Solution Approach 2:
The patent introduces correlation values as an intermediary to characterize the polarization relationship between transmitted and received signals. This intermediary enables the system to automatically determine appropriate polarization alignment without complex adjustment mechanisms.
3Area of stationary object
If the UE receives signals with mixed polarizations, then the coverage area is improved, but the signal leakage between polarizations increases
Solution Approach 1:
The patent extracts the polarization information from the received signals using correlation analysis. By separating the horizontal and vertical polarization components through mathematical processing, the system maintains wide reception coverage while eliminating harmful signal leakage between polarizations.
Data Source
AI summary
A method and device for compensation of received signal components at a user equipment (UE) used for receiving signal components from a radio base station (RBS). The signal components have at least a first and a second polarization orientation, respectively. The intended reception of the signal component (Yh(n)) having the first polarization deviates from the polarization orientation of the transmitted signal component (Xh(n)) having the first polarization by a first angle (φ), and the intended reception of the signal component (Yv(n)) having the second polarization deviates from the polarization orientation of the transmitted signal component (xv(n)) having the second polarization by a second angle (θ). The method comprises the steps: determining the correlation values (Ryvv, Ryvy, Ryyv, Ryyy) for the received signals (Yh, Yv) at a first time (k) and a second time (m); using these values to determine the deviation angles (φ, θ) performing said compensation using the deviation angles (φ, θ).