Sensing Signal Phase Coherence Segmentation for Sub-CPI Processing
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Solution Overview
Problem
Existing wireless communication systems, particularly 5G NR, face challenges in managing phase coherence discontinuities in sensing signals, which affect the reliability and efficiency of communication processes.
Innovation Solution
A method and apparatus are introduced to transmit and receive phase coherence indications based on phase coherence discontinuities, allowing for the configuration of sub-coherent processing intervals (sub-CPIs) to mitigate these discontinuities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If phase coherence discontinuities are present in sensing signals, then signal processing complexity increases, but measurement precision deteriorates
Solution Approach 1:
The patent segments the coherent processing interval (CPI) into multiple sub-CPIs based on phase coherence discontinuities. Each sub-CPI contains continuous phase information, allowing separate processing of coherent segments. This segmentation resolves the contradiction by enabling precise measurements within each sub-CPI while managing overall processing complexity through structured division of the signal processing task.
2Reliability
If sub-CPI configuration is implemented to mitigate phase coherence discontinuities, then reliability improves, but device complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring sub-CPI structures and anticipating phase coherence discontinuities before they affect measurement accuracy. The system prepares sub-CPI boundaries and processing parameters in advance, allowing reliable sensing measurements even when discontinuities occur. This approach improves reliability while managing device complexity through proactive rather than reactive processing.
3Productivity
If phase coherence discontinuities occur in sensing signals, then productivity decreases, but loss of information increases
Solution Approach 1:
The patent employs feedback mechanisms where the system monitors phase coherence conditions in real-time and adjusts sub-CPI configuration accordingly. When discontinuities are detected, the feedback loop triggers reconfiguration of processing parameters and boundaries. This maintains productivity by adapting to changing conditions while minimizing information loss through continuous optimization of the sensing signal processing based on actual coherence conditions.
Data Source
AI summary
A first node may transmit a set of sensing signals. The first node may transmit a phase coherence indication based on a set of phase coherence discontinuities associated with the set of sensing signals to a second node. The second node may receive the set of sensing signals. The set of sensing signals received by the second node may be reflected off of a target object. The second node may receive the phase coherence indication based on the set of phase coherence discontinuities associated with the set of sensing signals. The second node may measure the set of sensing signals based on the phase coherence indication. The first node may be a transmitter node. The second node may be a receiver node. The first or second node may be one of a transmission reception point (TRP), a user equipment (UE), a sensing reference unit, or a positioning reference unit.