5G NR UE Positioning via Measurement Configuration Messages
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Solution Overview
Problem
The 5G NR system lacks a UE positioning scheme, which is essential for accurate user equipment (UE) location determination in communication technologies, despite supporting various reference signals for synchronization and channel state information.
Innovation Solution
A positioning method and apparatus that utilize measurement configuration messages to instruct User Equipment (UE) to perform measurements based on Synchronization Signal block (SS block) and Channel State Information-Reference Signal (CSI-RS) configurations, reporting Reference Signal Received Power (RSRP) and Time Difference of Arrival (TDOA) to enable UE positioning within the 5G NR system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UE positioning scheme is not introduced in 5G NR system, then the system maintains simplicity without dedicated positioning functionality, but the capability to determine UE location accurately is lost
Solution Approach 1:
The patent makes existing reference signals (SS block and CSI-RS) serve dual purposes: their primary functions for synchronization and channel state information, plus an additional positioning function. By configuring these existing signals with positioning-related parameters and having the UE report measurements (SS-RSRP, CSI-RSRP, SS-TDOA), the system achieves UE positioning without introducing entirely new signaling mechanisms, thus adding positioning capability while minimizing complexity increase
2Measurement precision
If measurement configuration messages include comprehensive UE-level measurement reference signal configuration information, then positioning accuracy is improved, but the message size and processing complexity increase
Solution Approach 1:
The patent combines positioning configuration information with existing measurement configuration messages that are already part of the 5G NR protocol stack. Instead of creating separate dedicated positioning configuration messages, the positioning-related parameters (SS block configuration, CSI-RS configuration, measurement types) are integrated into the existing measurement configuration framework, reducing overall system complexity while maintaining comprehensive positioning capability
Solution Approach 2:
The measurement configuration message serves multiple functions simultaneously: it configures measurements for both traditional purposes (RSRP, RSRQ, SINR for mobility and resource management) and positioning purposes (SS-TDOA, timing measurements). This multi-functionality allows the system to achieve accurate positioning without increasing the number of separate configuration messages
Data Source
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AI summary
Disclosed are a positioning and measurement reporting method and apparatus, used for implementing a solution regarding UE positioning in a 5G NR system. The present application provides a positioning method, comprising: determining a measurement configuration message of a user equipment (UE), the measurement configuration message comprising UE-level measurement reference signal configuration information; sending the measurement configuration message to the UE to instruct the UE to report the measurement; and positioning the UE on the basis of the measurement result reported by the UE.