UE Positioning via PRS Beam Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in accurately acquiring positioning information, particularly in environments requiring enhanced mobile broadband, massive machine-type communications, and ultra-reliable low-latency communications, where existing methods for positioning reference signals are inadequate for ensuring high precision and reliability.
Innovation Solution
The method involves a user equipment (UE) in a wireless communication system using positioning reference signals (PRS) to improve positioning accuracy, incorporating advanced signal processing and beam management techniques, such as AI-driven algorithms for enhanced signal detection and beam alignment, within the context of New Radio (NR) systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If positioning reference signals are transmitted using conventional methods, then the system is simpler to implement, but positioning accuracy is insufficient for high-precision applications
Solution Approach 1:
The patent applies preliminary action by performing beam management and signal processing preparations before actual positioning measurements. The network performs beam alignment and configuration in advance, and the UE performs reference signal reception preparation, enabling high-accuracy positioning without increasing real-time processing complexity during the actual positioning operation.
Solution Approach 2:
The patent segments the positioning process into multiple independent phases: beam management phase, reference signal reception phase, and positioning calculation phase. Each phase can be processed independently with appropriate complexity level, allowing high precision positioning while managing overall system complexity through modular processing.
2Measurement precision
If positioning measurements are performed with high precision requirements, then positioning accuracy improves, but measurement time increases
Solution Approach 1:
The patent implements continuous reference signal transmission and reception throughout the measurement period, eliminating idle time between measurements. The network continuously transmits positioning reference signals and the UE continuously processes them, ensuring that measurement time is fully utilized for productive positioning calculations rather than idle waiting periods.
Solution Approach 2:
By performing beam alignment and signal configuration in advance, the system reduces the time required during actual measurement operations. The preliminary beam management ensures that when measurements are taken, the optimal beams are already aligned, minimizing the time needed for high-precision measurements.
3Reliability
If multiple beams are used for positioning measurements, then positioning reliability improves, but the complexity of managing and measuring increases
Solution Approach 1:
The patent segments beam management into separate network-side and UE-side functions. The network manages beam configuration and transmission, while the UE manages reception and measurement processing. This segmentation reduces the complexity burden on any single device while maintaining high reliability through multi-beam measurements.
Solution Approach 2:
The patent implements feedback mechanisms where the UE reports measurement results for different beams back to the network, and the network adjusts beam configuration accordingly. This feedback loop enables the system to automatically optimize beam selection and management, reducing manual complexity while maintaining high reliability through iterative improvement.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present disclosure discloses a method of reporting positioning information by a UE in a wireless communication system. The method includes receiving a synchronization signal (SS)/physical broadcast channel (PBCH) block related to cell search, obtaining system information from a PBCH included in the SS/PBCH block, receiving information related to a plurality of positioning reference signal (PRS) resource sets including a plurality of PRS resources, and obtaining pieces of positioning information based on PRSs received through the plural PRS resources. At least one piece of positioning information among the pieces of positioning information and information related to a PRS resource for the at least one piece of positioning information are used for positioning reporting of the UE.