Sidelink PRS Segmentation Across Resources for Accurate Positioning
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing increasing data traffic and latency, particularly in sidelink communication for vehicle-to-everything (V2X) applications, requiring enhanced mobile broadband communication with improved reliability and positioning accuracy.
Innovation Solution
The method involves generating a first sidelink positioning reference signal (PRS) and spreading it into multiple sub-SL PRSs, transmitted on diverse resources for positioning, utilizing a resource pool, and performing positioning based on these sub-SL PRSs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single SL PRS is transmitted on a single resource, then the transmission complexity is low, but the positioning accuracy is insufficient
Solution Approach 1:
The patent divides a single SL PRS into multiple sub-SL PRSs and transmits them on different SL resources. This segmentation allows the receiving device to combine multiple signals for more accurate positioning while maintaining a manageable transmission structure through resource pool organization.
2Measurement precision
If multiple SL PRSs are transmitted on multiple resources, then the positioning accuracy is improved, but the resource consumption increases
Solution Approach 1:
The patent merges multiple sub-SL PRS transmissions into an organized resource pool structure with defined time-frequency resources. This combining approach allows efficient resource utilization through pooling and sharing among multiple devices while achieving improved positioning accuracy through multiple signal transmissions.
3Productivity
If SL PRS transmission is performed without resource pool management, then the system complexity is low, but the resource utilization efficiency is poor
Solution Approach 1:
The patent creates a universal resource pool that can be shared by multiple transmitting and receiving devices for SL positioning. This multi-functional resource pool structure enables efficient resource utilization across different device pairs while providing a standardized framework that manages complexity through organization rather than individual device complexity.
Data Source
AI summary
An operation method of a first device 100 in wireless communication system is proposed. The method may comprise: generating an SL PRS for positioning for the first device 100; spreading the first SL PRS into a plurality of first sub SL PRSs; transmitting the plurality of first sub SL PRSs based on a plurality of SL resources different from each other; and performing the positioning for the first device 100, based on the plurality of first sub SL PRSs.