Measurement Gap Configuration for Long-Duration PRS Signals
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Solution Overview
Problem
Existing measurement gap configurations in user equipment (UE) limit the ability to perform positioning reference signal (PRS) measurements due to the maximum allowed gap length of 5ms, which does not match configurations requiring longer measurement times.
Innovation Solution
A method for configuring extended and additional measurement gaps by using scaling factors and additional gap patterns to accommodate longer PRS configurations, allowing UE to perform more comprehensive signal measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the measurement gap length is extended to match long-duration PRS configurations, then the matching between measurement gap and PRS configuration is improved, but the device complexity increases due to the need for extended gap patterns and scaling factors
Solution Approach 1:
The patent introduces dynamic measurement gap configurations where the network can flexibly adjust gap lengths and repetition periods based on PRS configuration requirements. The UE receives dynamic indications of measurement gap parameters, allowing the system to adapt to varying PRS durations without being constrained by fixed gap patterns. This dynamic approach enables long-duration PRS measurements while maintaining configuration flexibility.
Solution Approach 2:
The patent employs parameter changes by introducing scaling factors that can modify the duration and repetition period of measurement gaps. Instead of using fixed gap patterns, the system applies scaling factors to adjust gap parameters dynamically, enabling the measurement gap to match various PRS configuration durations. This parameter-based approach resolves the contradiction by allowing flexible adaptation without fundamentally changing the gap configuration structure.
2Duration of action of moving object
If the measurement gap length is increased to accommodate long PRS configurations, then the measurement capability for long-duration PRS is improved, but the switching time and measurement execution time may be insufficient within the extended gap
Solution Approach 1:
The patent utilizes periodic measurement gap patterns where gaps are repeated at configured intervals. By adjusting the repetition period and combining multiple periodic gaps, the system can accumulate sufficient measurement execution time within the extended measurement window. This periodic structure allows the UE to perform measurements across multiple gap occurrences, effectively resolving the time constraint while maintaining the extended gap length needed for long-duration PRS.
3Measurement precision
If multiple PRS resources are configured with durations exceeding 5ms, then the positioning measurement accuracy is improved, but the existing measurement gap configuration cannot support these longer measurements
Solution Approach 1:
The patent segments the measurement gap configuration into multiple controllable parameters including gap length, repetition period, and scaling factors. This segmentation allows the system to configure measurement gaps in a structured manner that can be adjusted to match various PRS resource configurations. By dividing the gap configuration into discrete adjustable elements, the system can accommodate long-duration PRS measurements while maintaining configuration flexibility and manageability.
Data Source
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AI summary
The present invention provides a signal measurement method, a measurement gap configuration method, and related devices (50, 1100). The signal measurement method includes: obtaining (201) measurement gap configuration information, where the measurement gap configuration information includes at least one of first measurement gap configuration information and second measurement gap configuration information, and gap pattern configuration information indicated by the second measurement gap configuration information is different from gap pattern configuration information indicated by the first measurement gap configuration information; and performing (202) signal measurement within a measurement gap according to the measurement gap configuration information.