CSI-RS Measurement Precision Adjustment for Timing Differences
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Solution Overview
Problem
The existing 3GPP protocol TS38.133 leads to inaccurate evaluation of CSI-RS measurement results due to the use of a single set of measurement precision requirement parameters, which are insufficient for handling timing differences between synchronization reference cells and neighboring cells, resulting in unreliable measurement reports.
Innovation Solution
A method and apparatus that determine the timing difference between synchronization timings of synchronization reference and neighboring cells, allowing for the adjustment of measurement precision requirement parameters based on this difference, enabling accurate evaluation of CSI-RS measurement results by setting different parameters for varying timing differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single set of measurement precision requirement parameters is used for all CSI-RS measurements, then the evaluation process is simple and fast, but the measurement precision and reliability deteriorate when timing differences exceed the limit
Solution Approach 1:
The patent applies dynamics by transitioning from a static, fixed measurement precision requirement parameter to a dynamic parameter that adapts based on the timing difference between synchronization reference cell and neighboring cell. The system calculates the timing difference and selects appropriate measurement precision requirement parameters accordingly, allowing the evaluation criteria to change dynamically with the measurement conditions.
Solution Approach 2:
The patent implements parameter changes by modifying the measurement precision requirement parameter based on the timing difference value. Different timing difference ranges correspond to different measurement precision requirement parameters, allowing the system to adjust the evaluation threshold dynamically rather than using a fixed parameter for all scenarios.
2Device complexity
If the UE measures CSI-RS based on synchronization timing of synchronization reference cell only, then the measurement process is simple, but the measurement reliability deteriorates when timing difference exceeds the limit
Solution Approach 1:
The patent applies feedback by having the UE report the timing difference information back to the base station. The base station then uses this feedback information to determine appropriate measurement precision requirement parameters, creating a closed-loop system that adjusts evaluation criteria based on actual measurement conditions.
Solution Approach 2:
The patent implements preliminary action by having the UE determine and report the timing difference before the final measurement evaluation. This allows the base station to prepare the appropriate measurement precision requirement parameters in advance, ensuring that the evaluation is conducted with the correct criteria already in place.
3Ease of manufacture
If a fixed measurement precision requirement parameter is used, then the system is easy to implement, but the adaptability to different timing conditions deteriorates
Solution Approach 1:
The patent applies segmentation by dividing the timing difference range into multiple segments or categories. Different timing difference ranges are associated with different measurement precision requirement parameters, allowing the system to handle various timing conditions with specialized parameters rather than a single universal parameter.
Solution Approach 2:
The patent implements parameter changes by modifying the measurement precision requirement parameter based on the timing difference value. Different timing difference ranges correspond to different measurement precision requirement parameters, allowing the system to adjust the evaluation threshold dynamically rather than using a fixed parameter for all scenarios.
Data Source
AI summary
A measurement data processing method and apparatus, a communication device, and a storage medium are provided. In the measurement data processing method, a base station determines a timing difference between synchronization timing of a synchronization reference cell and synchronization timing of a neighboring cell when a user equipment (UE) performs channel state information reference signal (CSI-RS) measurement; and according to the timing difference, a measurement precision requirement parameter corresponding to a CSI-RS measurement result obtained by the UE performing the CSI-RS measurement is determined.