5G NR Measurement Reporting With Time-Domain Correlation
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Solution Overview
Problem
Current measurement result reporting mechanisms in communication systems, particularly in 5G NR systems, are inadequate for sensing signals as they lack time-domain correlation, leading to invalidity and incompleteness of measurement results.
Innovation Solution
A communication method where a first communication apparatus reports a measurement result along with measurement time information, such as system frame numbers, slot indices, or time domain offsets, enabling a second communication apparatus to determine the measurement time point or window, thereby improving the validity and completeness of the measurement result.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a terminal device reports measurement results without time information, then the reporting mechanism is simple, but the measurement results lack time-domain correlation and become invalid
Solution Approach 1:
The patent combines measurement results with time information (system frame number, slot index, symbol index) into a single reporting message. This merging ensures that the measurement result maintains time-domain correlation while keeping the reporting mechanism integrated and cohesive, resolving the contradiction between reliability and complexity.
Solution Approach 2:
The patent introduces time information as an intermediary element that bridges the measurement result and the network device's understanding of when the measurement was taken. This intermediary (time stamp) enables the network device to correctly interpret and use the measurement result without requiring complex additional signaling.
2Measurement precision
If measurement time information is reported in detail, then the time-domain correlation is improved, but the signaling overhead increases
Solution Approach 1:
The patent segments time information into hierarchical levels (system frame number, slot index within frame, symbol index within slot). This segmentation allows precise time-domain correlation to be established while efficiently packing the time information into compact fields, reducing overall signaling overhead compared to reporting absolute time values.
Solution Approach 2:
The patent applies different precision levels to different time components based on their significance. The system frame number provides coarse time positioning, while slot and symbol indices provide finer local time resolution. This local quality approach ensures measurement precision where needed while minimizing unnecessary signaling overhead in less critical time dimensions.
3Adaptability or versatility
If the terminal device determines measurement moments independently, then the measurement flexibility is improved, but the network device cannot determine the measurement time point
Solution Approach 1:
The patent employs preliminary action by having the terminal device independently determine measurement moments based on pre-configured measurement configurations and criteria. The terminal device autonomously selects when to perform measurements without real-time network intervention, maintaining flexibility while ensuring measurements occur at appropriate times according to predefined rules.
Solution Approach 2:
The patent implements feedback by having the terminal device report both the measurement result and the associated time information back to the network device. This feedback loop allows the network device to understand when measurements were taken independently by the terminal, maintaining both measurement flexibility and network awareness of measurement timing.
Data Source
AI summary
A first communication apparatus measures a measurement signal to obtain a measurement result; and the first communication apparatus sends the measurement result and measurement time information to a second communication apparatus, where the measurement time information indicates a measurement time point or a measurement time window at which the first communication apparatus performs the measurement. In this manner, the first communication apparatus may report the measurement time information of the measurement result. Therefore, the measurement time information of the measurement result is provided.