Base Station Positioning via Multi-Terminal Signal Fusion
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Solution Overview
Problem
Current positioning technologies based on cellular communication networks face challenges with low accuracy and high costs, particularly in indoor environments, due to the limited coverage radius of 5G base stations.
Innovation Solution
A method involving a base station that receives positioning reference signals from a primary and secondary terminal device, determines position information through a weighted average of these signals, and sends the corrected information back to the devices, improving accuracy by utilizing a binding relationship between the devices and configuring time-frequency resources for efficient signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If positioning is performed using only the first terminal device's reference signal, then the positioning process is simple, but the positioning accuracy is insufficient especially in indoor environments
Solution Approach 1:
The patent combines positioning reference signals from multiple terminal devices (first terminal device and second terminal device) to perform joint positioning. The base station receives and processes signals from both devices, merging the measurement data to calculate position information, thereby improving positioning accuracy through signal fusion while managing the increased processing complexity.
Solution Approach 2:
The base station acts as an intermediary that receives positioning reference signals from multiple terminal devices, processes these signals through weighted average calculation, and returns the calculated position information to the terminal devices. This intermediary processing resolves the complexity by centralizing the computation burden at the base station rather than requiring complex interactions between terminal devices.
2Measurement precision
If multiple terminal devices are used for joint positioning, then the positioning accuracy is improved, but the resource allocation and signal coordination become more complex
Solution Approach 1:
The base station pre-configures time-frequency resources for positioning reference signals before the actual positioning process. By allocating specific time slots and frequency resources in advance to different terminal devices, the system simplifies signal coordination and avoids interference, making the multi-device positioning process more manageable while maintaining improved accuracy.
3Reliability
If time-frequency resources are not pre-configured, then the system is more flexible, but signal interference and resource conflicts increase
Solution Approach 1:
The base station performs preliminary allocation of time-frequency resources to terminal devices before positioning operations begin. This advance configuration ensures that each device has dedicated resources for transmitting positioning reference signals, eliminating signal interference and resource conflicts while improving transmission reliability. The resource management complexity is handled centrally by the base station.
Data Source
AI summary
A positioning processing method applied to a base station is provided. The positioning processing method includes: receiving a first positioning reference signal from a first terminal device; receiving a second positioning reference signal from a second terminal device bound to the first terminal device; determining position information of the first terminal device based on the first positioning reference signal and the second positioning reference signal; and sending the position information to at least one of the first terminal device or the second terminal device.