Group Delay Timing Accuracy for New Radio Positioning
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Solution Overview
Problem
Conventional wireless communication systems face challenges in accurately performing timing measurements for positioning reference signals due to variations in group delay, which affect the precision of user equipment (UE) positioning in New Radio (NR) networks.
Innovation Solution
The implementation of a method where user equipment (UE) receives a configuration signal indicating properties of a positioning reference signal, allowing it to determine accuracy levels for timing measurements based on these properties, and transmits a measurement report to the base station, potentially bypassing certain components of the transmit or receive chain to enhance accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional timing measurement techniques are used for positioning reference signals, then the positioning process can be implemented, but the measurement precision is degraded due to group delay variations
Solution Approach 1:
The patent changes the parameter of timing measurement by introducing accuracy levels that account for group delay variations. The UE determines timing measurement accuracy based on properties of the positioning reference signal and transmits this accuracy information to the network, enabling the network to compensate for group delay effects and improve positioning accuracy.
2Measurement precision
If the UE determines and reports timing measurement accuracy, then positioning precision is improved, but the device complexity increases due to additional processing and reporting requirements
Solution Approach 1:
The UE performs preliminary determination of timing measurement accuracy based on properties of the positioning reference signal before reporting to the network. This preliminary action allows the network to pre-configure measurement opportunities and resources, reducing the need for complex real-time processing and reporting mechanisms.
3Measurement precision
If the network configures positioning reference signal properties, then measurement accuracy can be optimized, but the loss of time increases due to additional configuration signaling
Solution Approach 1:
The configuration signal serves multiple functions: it configures positioning reference signal properties, indicates accuracy levels, and provides timing measurement opportunities. This multi-functionality reduces the need for separate configuration messages, minimizing the time loss associated with configuration signaling while still optimizing measurement accuracy.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a configuration signal, the configuration signal indicating a configuration for a positioning reference signal. The UE may determine one or more properties associated with the positioning reference signal based on the configuration signal. The UE may determine an accuracy level associated with one or more timing measurements based on the one or more properties associated with the positioning reference signal, and transmit a measurement report associated with the positioning reference signal to a base station. In some examples, the measurement report may be related to the accuracy level associated with the one or more timing measurements.