5G PRS Configuration Coordination for Low-Interference Positioning
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Solution Overview
Problem
Existing positioning technologies in 5G cellular mobile communication face challenges with PRS interference due to static PRS configurations, leading to reduced PRS detection and positioning accuracy, especially when different user equipment requires varying positioning precision.
Innovation Solution
Implementing a dynamic PRS configuration mechanism where base stations adjust their PRS configurations based on existing configurations to minimize interference, using interference coordination and muting techniques, and adapting to different positioning service requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If static PRS configurations are used for positioning, then device complexity is reduced and ease of operation is improved, but PRS interference increases leading to reduced positioning accuracy
Solution Approach 1:
The patent implements dynamic PRS configuration where base stations adjust their PRS parameters (time, frequency, power) based on real-time interference conditions and positioning service requirements. This allows the system to adapt PRS configurations dynamically rather than using static configurations, thereby improving positioning accuracy while managing complexity through automated algorithms.
Solution Approach 2:
The patent changes multiple PRS parameters including time domain configuration, frequency domain configuration, and power configuration to optimize positioning performance. By adjusting these parameters based on interference levels and service requirements, the system achieves better positioning accuracy without requiring overly complex manual configuration processes.
2Measurement precision
If dynamic PRS configuration is implemented to reduce interference, then positioning accuracy is improved, but device complexity and configuration management difficulty increase
Solution Approach 1:
The patent enables base stations to automatically determine and adjust their own PRS configurations based on interference measurements and positioning service requirements. Each base station performs self-configuration and self-optimization, reducing the need for manual configuration management while improving PRS detection accuracy through adaptive interference coordination.
Solution Approach 2:
The patent implements feedback mechanisms where base stations measure interference levels from other base stations' PRS signals and use this feedback to adjust their own PRS configurations. This closed-loop approach automatically optimizes PRS parameters to minimize interference while maintaining positioning accuracy, without requiring complex external configuration management.
3Reliability
If PRS configurations are optimized for high positioning precision, then positioning success rate is improved, but interference coordination complexity increases
Solution Approach 1:
The patent segments the interference coordination process into distinct components: interference measurement, configuration determination, and configuration application. By dividing the complex interference coordination task into manageable segments, the system achieves high positioning success rates while keeping the coordination complexity tractable through modular processing.
Solution Approach 2:
The patent performs preliminary interference measurements and configuration determinations before actual PRS transmission. Base stations pre-determine optimal PRS configurations based on measured interference conditions, allowing them to transmit PRS signals with optimized parameters that ensure high positioning success rates while avoiding complex real-time coordination during positioning operations.
Data Source
AI summary
An information transmission method, the method includes: determining a first positioning reference signal (PRS) configuration for sending a first PBS, where the first PRS configuration is determined based on a second PRS configuration used when a second base station sends a second PRS, and an interference degree between the first PRS sent by the first base station according to the first PRS configuration and the second PRS sent by the second base station according to the second PRS configuration satisfies of a low interference condition.