Reference Signal Polarization Measurement With Adaptive Gap Timing
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Solution Overview
Problem
Existing wireless communication systems face challenges in accurately measuring reference signals due to polarization mismatches, which can lead to significant signal loss and reduced reliability, particularly in non-terrestrial networks where Doppler effects and frequency errors are prevalent.
Innovation Solution
The proposed solution involves determining and adjusting measurement gaps based on the polarization of reference signals, receiving and transmitting signals with indicated polarizations, and switching antenna polarizations as needed to optimize signal measurement and communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If polarization switching is implemented to improve measurement accuracy, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic polarization switching of antenna elements based on detected reference signal polarization. The system transitions from static antenna configuration to dynamic reconfiguration, allowing the antenna polarization to adapt in real-time to match the incoming reference signal polarization, thereby resolving the measurement accuracy issue while managing complexity through controlled dynamics
Solution Approach 2:
The system changes the polarization parameter of antenna elements from fixed to variable. By adjusting the polarization state of antenna elements (e.g., switching between vertical and horizontal polarization), the system optimizes signal reception for different reference signal polarizations, directly addressing the measurement precision problem
2Reliability
If measurement gaps are extended to accommodate polarization switching, then measurement reliability is improved, but loss of time increases
Solution Approach 1:
The system performs preliminary detection of reference signal polarization before the actual measurement. By detecting the polarization state in advance and pre-configuring the antenna elements accordingly, the system eliminates the need for extended measurement gaps, achieving reliable measurements without significant time loss
Solution Approach 2:
The patent implements rapid polarization switching that completes the antenna reconfiguration faster than traditional measurement gap durations. By rushing through the polarization switching process and completing it within or before the standard measurement gap, the system maintains reliability while minimizing time loss
Data Source
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AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a duration of a first gap that precedes a reference signal, based at least in part on a polarization of the reference signal. The UE may determine a duration of a second gap that succeeds the reference signal, based at least in part on the polarization of the reference signal. The UE may perform a measurement of the reference signal based at least in part on the first gap and the second gap. Numerous other aspects are provided.