Aperiodic Reference Signal Configuration for Uplink Positioning
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Solution Overview
Problem
Current uplink positioning technologies in mobile communication systems face challenges in achieving high accuracy, necessitating optimization to improve positioning precision.
Innovation Solution
A reference signal configuration determining method and apparatus that allow a network device to dynamically configure aperiodic reference signals for terminals, enabling adaptive configuration based on the latest terminal reporting conditions and improving uplink positioning accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If periodic reference signal configuration is used, then the configuration is stable and easy to manage, but the positioning accuracy cannot adapt to latest terminal reporting conditions
Solution Approach 1:
The patent transforms the static periodic reference signal configuration into a dynamic aperiodic configuration that can be adjusted in real-time based on terminal reporting conditions. The network device determines aperiodic reference signal configuration parameters and sends them to the location management function, enabling the system to adapt to changing terminal conditions while maintaining positioning accuracy.
2Measurement precision
If aperiodic reference signal configuration is implemented, then the positioning accuracy adapts to latest terminal reporting conditions, but the system complexity increases
Solution Approach 1:
The patent divides the aperiodic reference signal configuration into distinct parameters including timing information, frequency information, and measurement configuration parameters. This segmentation allows the network device to determine and transmit configuration information in a structured manner to the location management function, managing complexity through organized parameter decomposition.
Solution Approach 2:
The patent introduces the location management function as an intermediary between the network device and the terminal. The network device sends configuration information to the location management function, which then manages the aperiodic reference signal configuration and coordinates with measurement network elements, simplifying the overall system architecture while enabling adaptive positioning.
3Measurement precision
If real-time configuration updates are performed, then the positioning accuracy is improved, but the signaling overhead increases
Solution Approach 1:
The patent uses aperiodic reference signals that are triggered based on terminal reporting conditions rather than continuous periodic updates. The configuration is determined and transmitted only when needed based on actual terminal conditions, reducing unnecessary signaling overhead while maintaining the ability to update positioning parameters in real-time when required.
Data Source
AI summary
A reference signal configuration determining method and apparatus are provided. The method includes: a network device determines a first configuration for sending an aperiodic reference signal by a to-be-positioned terminal; and the network device sends the first configuration to a location management function. The network device is a serving base station of a terminal. The serving base station of the terminal may determine an aperiodic reference signal configuration of the terminal at any time. The first configuration of the aperiodic reference signal is sent to the location management function, so that the location management function can be notified of the aperiodic reference signal configuration in time. According to the application, the location management function obtains positioning measurement information from a measurement network element based on the first configuration, thereby optimizing an uplink positioning technology and improving uplink positioning accuracy.