Wireless Signal Phase Measurement for Synchronized NR Positioning
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Solution Overview
Problem
Existing wireless communication systems lack efficient methods for configuring and performing positioning-related phase measurements in wireless signal transmission and reception, particularly in New Radio (NR) systems, leading to inaccuracies and inefficiencies in carrier phase measurement-based positioning.
Innovation Solution
A method and apparatus for configuring and performing positioning-related phase measurements by receiving configuration information for resource sets and measurement durations through network signaling, allowing for accurate and synchronized phase measurements between user equipment (UE) and positioning reference units (PRUs) using downlink positioning reference signals (PRS) or sounding reference signals (SRS).
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If positioning-related phase measurement is performed without specific time duration configuration, then measurement flexibility is maintained, but measurement precision deteriorates due to lack of synchronization between devices
Solution Approach 1:
The network device performs preliminary configuration by providing time duration information to the terminal device before phase measurement occurs. This allows the terminal device to know in advance when to perform measurements, ensuring synchronization with the network device without adding complex real-time coordination mechanisms.
Solution Approach 2:
The measurement report mechanism provides feedback from the terminal device to the network device about phase measurement results. This feedback loop enables the network device to adjust future measurement configurations and improve positioning accuracy over time based on actual measurement quality.
2Measurement precision
If phase measurement is performed continuously across all resource sets, then measurement accuracy is maintained, but energy consumption increases
Solution Approach 1:
The phase measurement process is segmented by applying it only to specific resource sets identified in the measurement configuration, rather than continuously across all resource sets. The time duration information further segments the measurement opportunities into discrete windows, allowing the terminal device to conserve energy by remaining inactive outside these configured periods.
Solution Approach 2:
Phase measurement is performed periodically only during the configured time durations rather than continuously. This periodic approach allows the terminal device to alternate between measurement activities and low-power states, significantly reducing energy consumption while maintaining positioning functionality.
3Reliability
If multiple resource sets are configured for phase measurement, then positioning reliability is improved, but device complexity increases due to additional configuration management
Solution Approach 1:
The measurement configuration structure is designed to be universal and applicable across multiple resource sets. By using a standardized configuration format that can accommodate any number of resource sets, the system achieves multi-functionality without requiring separate complex configuration mechanisms for each resource set.
Data Source
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AI summary
A method for a first apparatus to measure a signal in a wireless communication system according to at least one of the examples disclosed herein may involve: receiving, through network signaling, first configuration information about reference signal resource sets and second configuration information about the measurement of a reference signal; measuring the reference signal on the basis of the first configuration information and the second configuration information; and transmitting a measurement report on the basis of the measurement of the reference signal, wherein the measurement of the reference signal includes positioning-related phase measurement, and the second configuration information includes information about at least one resource set, in which the positioning-related phase will be measured, among the reference signal resource sets, and information about at least one time period in which the positioning-related phase will be measured.