Wireless Positioning Signal Reporting With LoS/NLoS Method Switching
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in performing wireless signal transmission and reception procedures, particularly in selecting appropriate positioning methods based on channel environments and conditions, leading to inaccurate and resource-intensive operations.
Innovation Solution
A method and apparatus that allow a user equipment (UE) to receive configuration information for different positioning-related configurations, enabling event-based selection of phase measurement-based or timing-based positioning, and transmitting measurement reports accordingly, optimizing the selection process based on line of sight (LoS)/non-line of sight (NLoS) determination and reference signal received power (RSRP).
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single positioning method is used regardless of channel conditions, then the system operation is simple, but positioning accuracy deteriorates
Solution Approach 1:
The patent implements dynamic positioning method selection where the UE switches between phase measurement-based positioning and timing-based positioning based on real-time channel conditions (LoS/NLoS determination). The system transitions from static single-method positioning to dynamic adaptive positioning, improving accuracy by selecting the appropriate method according to current environmental conditions.
Solution Approach 2:
The patent changes the positioning method parameter based on channel condition parameters. When LoS conditions are detected, phase measurement-based positioning is selected; when NLoS conditions are detected, timing-based positioning is selected. This parameter change approach allows the system to adapt to different channel environments and maintain high positioning accuracy.
2Measurement precision
If multiple positioning methods are always used, then positioning accuracy is improved, but resource consumption increases
Solution Approach 1:
The patent segments the positioning process into two distinct paths: phase measurement-based positioning for LoS conditions and timing-based positioning for NLoS conditions. Instead of always executing both methods, the system segments the operation to execute only the appropriate method based on channel conditions, reducing energy consumption while maintaining accuracy.
Solution Approach 2:
The patent applies partial action by selecting only the necessary positioning method based on channel conditions rather than always performing both phase measurement and timing-based positioning. This partial execution approach reduces redundant operations and energy consumption while maintaining sufficient positioning accuracy for the given conditions.
3Reliability
If positioning methods are selected without event conditions, then the system operation is simple, but positioning reliability deteriorates
Solution Approach 1:
The patent performs preliminary LoS/NLoS determination and event condition evaluation before selecting the positioning method. By preliminarily assessing channel conditions and determining the appropriate positioning approach in advance, the system ensures reliable positioning while managing complexity through structured preliminary evaluation rather than complex real-time decisions.
Solution Approach 2:
The patent implements feedback mechanisms where the UE continuously monitors channel conditions (LoS/NLoS) and adjusts positioning method selection accordingly. The measurement reports and event condition evaluations provide feedback loops that enhance positioning reliability by ensuring the selected method matches current channel conditions, while the feedback structure manages complexity through standardized evaluation procedures.
Data Source
AI summary
A method in which a first device operates in a wireless communication system according to at least one of examples disclosed in the present specification may comprise: receiving configuration information including different types of positioning-related configurations; receiving a reference signal for positioning; and transmitting a measurement report for the reference signal on the basis of at least one of the different types of positioning-related configurations, wherein event conditions are associated with the different types of positioning-related configurations, respectively, and on the basis of satisfaction of a first event condition, the first device transmits a measurement report for the reference signal on the basis of a first type of positioning-related configuration associated with the first event condition.