Beam Weight Switching for Polarization Imbalance Mitigation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The use of UE cases and/or covers can cause polarization imbalances in wireless communication systems, particularly in 5G NR technology, due to the distortion of signal strength balance between dual-polarized antennas at FR2-1 frequencies.
Innovation Solution
A method is provided where a UE performs polarization imbalance measurements associated with its external covering or case, and then switches to a set of beam weights to mitigate the measured polarization imbalances. This adaptive switching is done to ensure effective communication between the UE and a network node.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If UE cases or covers are used to protect the device, then device protection is improved, but polarization imbalance occurs causing communication performance degradation
Solution Approach 1:
The patent changes the beamforming parameters (beam weights) dynamically based on detected polarization imbalance conditions. When a UE case or cover causes polarization imbalance, the system adjusts the beam weights to compensate for the distortion, thereby maintaining communication performance while allowing the use of protective cases.
Solution Approach 2:
The patent implements a feedback mechanism where the UE measures polarization imbalance caused by its case or cover and reports this information to the network node. The network node then adjusts beamforming parameters based on this feedback, creating a closed-loop system that maintains optimal communication performance despite the presence of protective accessories.
2Productivity
If dual-polarized antennas are used to increase data rate, then productivity is improved, but polarization imbalance sensitivity increases
Solution Approach 1:
The patent makes the beamforming configuration dynamic by allowing real-time adjustment of beam weights based on detected polarization imbalance conditions. This enables the system to adapt to case-induced distortions while maintaining the benefits of dual-polarized antenna operation for high data rates.
Solution Approach 2:
The system changes beamforming parameters dynamically in response to polarization imbalance measurements, allowing dual-polarized antennas to maintain their high data rate capability while compensating for case-induced polarization distortions through adaptive parameter adjustment.
Data Source
AI summary
Beam management triggers due to polarization imbalance with UE cases and covers are described. An apparatus is configured to perform a polarization imbalance measurement(s), for a UE external covering or case, of a signal transmission(s). The apparatus is configured to switch to a set of beam weights for communication between the UE and a network node for polarization imbalance mitigation. The apparatus is configured to communicate, with the network node, based on the set of beam weights. Another apparatus is configured to transmit, for a UE, a signal transmission(s) for a polarization imbalance measurement(s) for an external covering or case of the UE. The apparatus is configured to receive, from the UE, a beamforming indication indicative of a request to switch to a set of beam weights for polarization imbalance mitigation. The apparatus is configured to communicate, with the UE, based on the set of beam weights.