UE Positioning Reference Signal Selection for Noise Distinction
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Solution Overview
Problem
Existing wireless communication systems face challenges in accurately distinguishing reference signals (RS) for UE positioning from noise signals, particularly in environments with multiple beams, leading to reduced positioning accuracy.
Innovation Solution
A method and apparatus for selecting reference signals (RS) in a wireless communication system based on propagation time and signal quality measurements, using thresholds and percentages configured by location management functions or base stations, to enhance signal quality and improve positioning accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If reference signals are transmitted using multiple beams for positioning, then positioning coverage and reliability are improved, but the ability to distinguish reference signals from noise signals deteriorates
Solution Approach 1:
The patent applies local quality by evaluating different characteristics of reference signals transmitted through different beams. Instead of treating all beams uniformly, the system measures propagation time for each beam and selects only those meeting specific criteria (e.g., propagation time within a threshold range). This allows the system to distinguish reliable signals from noise on a per-beam basis, improving both reliability and measurement precision simultaneously.
2Ease of operation
If only propagation time measurement is used for reference signal selection, then measurement simplicity is maintained, but positioning accuracy deteriorates
Solution Approach 1:
The patent extends the selection criteria from a single parameter (propagation time) to multiple parameters by introducing signal quality thresholds and percentage-based filters. The system measures propagation time for each beam and then applies additional filtering based on signal quality metrics, such as selecting only beams where propagation time falls within a specific percentage range (e.g., top 10-50%) of all measured beams. This multi-parameter approach improves positioning accuracy while maintaining operational simplicity through automated processing.
Data Source
AI summary
Various embodiments of the present disclosure relate to a next generation wireless communication system for supporting a data transmission rate and the like higher than that of a 4th generation (4G) wireless communication system. According to the various embodiments of the disclosure, a method for transmitting and receiving a signal in a wireless communication system, and a device for supporting same can be provided.