Wireless Positioning Resource Priority for PRS and Data Conflicts
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Solution Overview
Problem
Future wireless communications networks face challenges in efficiently determining the location of a diverse range of devices with varying data traffic profiles and latency tolerances, particularly in high-priority scenarios like emergency calls, without disrupting regular data transmission.
Innovation Solution
Implementing a method that prioritizes aperiodic Positioning Reference Signals (PRS) transmission and reception based on relative priorities, ensuring high-priority positioning procedures are executed without interfering with other communications by allocating dedicated and non-conflicting resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If aperiodic Positioning Reference Signals are transmitted with high priority to ensure accurate and timely location determination, then positioning accuracy and latency are improved, but resource conflicts with data transmission may occur
Solution Approach 1:
The patent segments communication resources into distinct sets: first resources allocated for positioning signal transmission and second resources for data transmission. This segmentation ensures that positioning procedures and data transmission occur in separate resource domains, eliminating interference while maintaining high positioning accuracy through dedicated resources.
Solution Approach 2:
The patent resolves resource conflicts by introducing an additional dimension of resource allocation - separating resources not only in time and frequency but also in spatial/layer dimensions. The first resources and second resources operate in different resource dimensions, allowing simultaneous positioning and data transmission without interference.
2Loss of time
If dedicated resources are allocated for high-priority positioning procedures, then positioning latency is reduced, but overall resource utilization efficiency decreases
Solution Approach 1:
The patent implements dynamic resource allocation where the network device can flexibly assign first resources for positioning based on real-time positioning priority requirements. When high-priority positioning is needed, dedicated resources are allocated; when positioning priority is low, resources can be released or repurposed, maintaining optimal resource utilization while ensuring low latency when needed.
Solution Approach 2:
The patent changes the allocation parameters of communication resources dynamically. The network device adjusts the allocation of first resources versus second resources based on positioning priority levels, transforming the static resource allocation into a dynamic system that optimizes both latency and utilization efficiency through parameter adjustment.
Data Source
AI summary
A method of operating a communications device in a wireless communications network comprising determining first positioning signal resources, the first positioning signal resources comprising communication resources allocated for transmission or reception by the communications device of positioning signals associated with a positioning procedure, determining other communication resources allocated for transmission or reception by the communications device of other signals, determining that the communications device cannot use both the first positioning signal resources for the transmission or reception of the positioning signals and the other communication resources for the transmission or reception of the other signals, determining relative priorities of the first positioning signal resources and the other communication resources, and based on the relative priorities, controlling a transmitter or receiver of the communications device to transmit or receive the positioning signals using the first positioning signal resources or to transmit or receive the other signals using the other communication resources.