Terminal Positioning With Multi-Beam Reference Signal Measurement
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Solution Overview
Problem
Current methods for terminal positioning in 5G NR mobile communications systems suffer from inaccuracies due to single beam measurements, leading to errors in determining the angle of departure and reducing overall positioning accuracy.
Innovation Solution
The terminal measures downlink positioning reference signals using multiple reception beams to obtain multiple measurement results, which are then transmitted to the network, along with reception beam indication information, to improve accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If single beam measurement is used for terminal positioning, then the measurement process is simple, but the positioning accuracy deteriorates due to measurement errors
Solution Approach 1:
The patent segments the positioning measurement process by dividing it into multiple beam measurements instead of using a single beam. The terminal measures downlink positioning reference signals through multiple reception beams, obtaining multiple measurement results that are then processed to determine position information, thereby improving accuracy while managing complexity through structured segmentation
Solution Approach 2:
The patent applies partial action by measuring only the necessary subset of beams required for accurate positioning rather than exhaustively measuring all possible beams. The terminal determines position information based on measurement results from multiple beams, optimizing the balance between measurement effort and positioning accuracy
2Measurement precision
If multiple reception beams are used to measure downlink positioning reference signals, then positioning accuracy is improved, but the quantity of measurement data increases
Solution Approach 1:
The patent extracts only the essential measurement results needed for positioning from the multiple beam measurements. The terminal determines position information by processing measurement results from multiple reception beams, extracting the critical positioning data while filtering out redundant information, thus improving accuracy without proportionally increasing data volume
Solution Approach 2:
The patent uses partial action by performing measurements on multiple beams but processing only the necessary subset of results for positioning. The terminal obtains measurement results from multiple reception beams but determines position information using a optimized subset, avoiding the need to process all possible measurement combinations
Data Source
AI summary
A method and a device for positioning a terminal are provided. The method includes: measuring, by the terminal, a downlink positioning reference signal of a TRP, to obtain a measurement result for the downlink positioning reference signal, where at least one downlink positioning reference signal is measured by using at least two reception beams to obtain at least two measurement results; and transmitting, by the terminal, the measurement result for the downlink positioning reference signal of the TRP to a network.