PRS Beam Direction Grouping for Positioning Accuracy
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Solution Overview
Problem
In wireless communication systems, especially in multi-node environments, efficiently receiving and measuring positioning reference signals (PRS) is challenging due to the complexity of beam management and interference, which affects positioning accuracy and reliability.
Innovation Solution
A method where a user equipment (UE) receives PRS configuration information from multiple antenna ports, measures PRS groups with specific beam direction information, and reports the measurement results to a serving base station, utilizing precoding matrices to optimize beam direction and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If beam direction related information is applied to PRS from multiple antenna ports, then positioning accuracy is improved, but device complexity increases
Solution Approach 1:
The patent segments the PRS measurement process by grouping antenna ports based on beam direction related information. The UE measures PRS from different antenna ports separately according to their beam directions, then combines the measurement results. This segmentation allows the system to maintain high positioning accuracy while managing complexity through structured processing of beam direction information.
Solution Approach 2:
The patent introduces beam direction as an additional dimension for organizing PRS measurements. Instead of treating all antenna ports uniformly, the system adds beam direction information as a new organizational dimension, grouping antenna ports by their beam directions. This dimensional approach enables accurate positioning while providing a systematic method to manage the complexity of multi-antenna beam management.
2Object-affected harmful factors
If multiple antenna ports transmit PRS with different beam directions, then interference is reduced, but measurement processing complexity increases
Solution Approach 1:
The patent segments the measurement processing by organizing antenna ports into groups based on beam direction. The UE performs measurements for PRS from different antenna ports separately according to their beam direction groups, then combines the results. This segmentation reduces interference by isolating different beam directions while managing processing complexity through systematic grouping.
Solution Approach 2:
The patent adds beam direction as an additional organizational dimension for measurement processing. By grouping antenna ports according to their beam directions, the system creates a structured approach to processing measurements from multiple antennas. This dimensional organization reduces interference between different beam directions while providing a manageable framework for processing complexity.
3Reliability
If PRS configuration information is received from multiple antenna ports, then positioning reliability is improved, but reception time increases
Solution Approach 1:
The patent segments the PRS reception process by organizing antenna ports into beam direction groups. The UE receives and measures PRS from different antenna ports according to their beam directions, then combines the measurement results. This segmentation improves reliability by utilizing multiple antenna ports while managing reception time through efficient organized processing of beam direction information.
Solution Approach 2:
The patent introduces beam direction as an additional organizational dimension for PRS reception. By grouping antenna ports according to their beam directions, the system creates a structured reception approach that improves reliability through multiple antenna ports while managing time consumption through systematic organization of the reception process.
Data Source
AI summary
A method for receiving a reference signal for position determination in a wireless communication system according to one embodiment of the present invention may comprise the steps of: receiving configuration information regarding a positioning reference signal (PRS), the method thereof being performed by user equipment (UE) and that is transmitted from a plurality of antenna ports, wherein the PRS related configuration information includes information regarding a beam direction applied to the PRS; measuring each PRS group to which the same beam direction related information is applied; and reporting the measurement results of the respective PRS group to a serving base station.