Two-Part PRS Segmentation for Accurate UE Positioning
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Solution Overview
Problem
Existing wireless communication systems, particularly in the context of 5G, face challenges in achieving highly accurate positioning due to limitations in the structure and utilization of positioning reference signals (PRS), which can be enhanced by employing a two-part PRS configuration to improve detection and measurement accuracy.
Innovation Solution
A two-part positioning reference signal (PRS) is introduced, comprising a first part PRS and a second part PRS separated by a time gap, with configuration information enabling detection and measurement processes in user equipment (UE) to enhance positioning accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single-part PRS is used, then the signal structure is simple, but the positioning accuracy is insufficient
Solution Approach 1:
The positioning reference signal is divided into two distinct parts: a first part PRS and a second part PRS, separated by a time gap. This segmentation allows each part to serve specific positioning functions, with the first part enabling initial signal detection and the second part providing additional measurement opportunities, thereby improving positioning accuracy without requiring complete system redesign
2Measurement precision
If detection of the first part PRS is attempted, then measurement opportunities increase, but processing time is consumed
Solution Approach 1:
The first part PRS is transmitted and processed in advance before the second part PRS is received. By attempting detection of the first part PRS and using configuration information from it, the system prepares measurement parameters and detection settings beforehand, which enables more efficient processing of the second part PRS and reduces overall processing time despite the additional measurement opportunity
Data Source
AI summary
Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives configuration information for a two-part positioning reference signal (PRS) transmitted by a transmission point, wherein the two-part PRS comprises a first part PRS and a second part PRS separated by a time gap, attempts to detect the first part PRS based on the configuration information, and obtains a positioning measurement of the second part PRS based on detection of the first part PRS and the configuration information.