Dynamic Measurement Gap Configuration for 5G Positioning Accuracy
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Solution Overview
Problem
Current 5G wireless communication systems face challenges in achieving accurate positioning and reduced latency due to limitations in scheduling measurement gaps for positioning reference signals, which affect spectral efficiency and concurrent measurement capabilities across different frequency ranges.
Innovation Solution
The implementation of a method where user equipment (UE) and network entities communicate to schedule and configure measurement gaps, allowing for per-UE or per-FR measurement gaps to optimize positioning signal measurement accuracy and latency by ensuring proper timing for signal tuning and reducing noise from other signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If measurement gaps are scheduled for positioning reference signals, then positioning accuracy is improved, but latency increases and spectral efficiency deteriorates
Solution Approach 1:
The patent implements dynamic measurement gap configuration where the network entity and user equipment negotiate and adjust measurement gap parameters (timing, duration, frequency) based on real-time positioning requirements and channel conditions. This allows the system to optimize the balance between positioning accuracy and latency by adapting gap schedules rather than using fixed patterns.
Solution Approach 2:
The patent changes key parameters including measurement gap timing offsets, gap durations, and frequency resource allocations to resolve the contradiction. By adjusting these parameters dynamically, the system can minimize positioning measurement errors while reducing the time loss from measurement gaps and improving overall spectral efficiency.
2Measurement precision
If measurement gaps are scheduled for positioning reference signals, then positioning accuracy is improved, but spectral efficiency deteriorates
Solution Approach 1:
The patent applies local quality by configuring measurement gaps specifically for positioning purposes only in certain time-frequency resources, while other resources continue normal data transmission. This localized approach ensures positioning accuracy is maintained in designated measurement resources without degrading overall spectral efficiency across the entire system.
Solution Approach 2:
The patent uses partial action by scheduling measurement gaps only when positioning measurements are actually required, rather than continuously. The network entity can dynamically activate or deactivate measurement gap patterns based on positioning service requirements, thereby maintaining positioning accuracy when needed while preserving spectral efficiency during normal operation.
3Measurement precision
If per-UE measurement gaps are configured, then positioning measurement accuracy is improved, but device complexity increases
Solution Approach 1:
The patent implements self-service by enabling user equipment to autonomously determine and report its measurement gap requirements and capabilities to the network entity. The UE can self-configure its measurement needs based on its positioning performance requirements, reducing the signaling overhead and configuration complexity that would otherwise be imposed on both the UE and network entity.
Data Source
AI summary
A positioning signal measurement method includes: transmitting, from a user equipment to a network entity, a positioning measurement gap indication corresponding to a positioning measurement gap supported by the user equipment for measurement of a positioning reference signal; receiving, at the user equipment from the network entity, an indication of a scheduled positioning measurement gap; receiving, at the user equipment, the positioning reference signal; and measuring, at the user equipment, the positioning reference signal.