NTN UE Measurement Reporting with Position and Signal Quality
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Solution Overview
Problem
In Non-Terrestrial Network (NTN) scenarios, the signal quality state cannot accurately reflect the difference between the cell edge and the cell center due to large coverage, leading to inaccurate measurement reporting by User Equipment (UE).
Innovation Solution
The UE simultaneously reports a first measurement result related to position and a second measurement result related to signal quality, such as RSRP, RSRQ, or SINR, to provide a more reliable basis for network handover decisions in NTN scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If only signal quality measurement is performed in NTN, then the measurement process is simple, but the measurement precision is insufficient due to large coverage area
Solution Approach 1:
The patent segments the measurement reporting into two distinct parts: position measurement results and signal quality measurement results. This segmentation allows each type of measurement to be optimized independently, with position measurements providing spatial context and signal quality measurements providing connection status, thereby resolving the contradiction between measurement precision and device complexity.
Solution Approach 2:
The patent introduces a new dimension (position/space) to the traditional signal quality measurement. By adding position measurement results to the measurement reporting, the system transitions from one-dimensional signal quality assessment to two-dimensional assessment (position + signal quality), thereby improving measurement precision without excessive complexity increase.
2Reliability
If dual measurement reporting (position and signal quality) is implemented, then the basis for handover decision is more accurate, but the reporting complexity increases
Solution Approach 1:
The patent merges position measurement results and signal quality measurement results into a single unified measurement report. This merging approach ensures that both types of information are transmitted together in one reporting mechanism, improving the reliability of handover decisions while avoiding the need for separate reporting procedures that would increase complexity.
Solution Approach 2:
The measurement report is designed with multi-functionality, serving both position tracking and signal quality assessment purposes simultaneously. This universal reporting structure eliminates the need for separate specialized reports, thereby improving reliability through comprehensive data collection while maintaining reporting efficiency.
3Measurement precision
If traditional measurement reporting is used in NTN, then the reporting process is simple, but the handover decision accuracy deteriorates due to inability to reflect cell edge and center differences
Solution Approach 1:
The patent performs preliminary position measurement before signal quality measurement and incorporates both results into the measurement report. This preliminary action of measuring position first provides the necessary spatial context that enhances the interpretation of signal quality measurements, thereby improving handover decision accuracy and preventing information loss about the UE's location relative to cell boundaries.
Data Source
AI summary
Disclosed are a measurement reporting method and apparatus in an NTN, a receiving method and apparatus, and a device and a medium, the measurement reporting method in an NTN being applied to a terminal. The method includes: receiving a measurement configuration; and reporting a first measurement result and a second measurement result according to the measurement configuration, wherein the first measurement result is a position-related measurement result, and the second measurement result is a measurement result of at least one of the signal quality of a serving cell and the signal quality of a neighbor cell.