Sidelink PRS Resource Linking for Reliable Positioning
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Solution Overview
Problem
The increasing demand for mobile broadband communication and V2X services requires improved sidelink communication solutions to manage data traffic and ensure reliability and low latency, particularly in vehicle-to-everything scenarios.
Innovation Solution
A method and device for transmitting sidelink positioning reference signal (PRS) control channels and PRS to determine the location of resources in conjunction, enhancing wireless communication capabilities for precise positioning and efficient resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If SL PRS CCH and SL PRS are transmitted separately with independent resource locations, then resource allocation flexibility is improved, but positioning accuracy and reliability deteriorate due to resource misalignment
Solution Approach 1:
The patent combines the resource location determination of SL PRS CCH and SL PRS into a unified framework. The transmitting device determines resource locations for both control channel and reference signal in conjunction, ensuring they are properly aligned. This merging approach maintains flexibility in resource allocation while ensuring the reliability of positioning operations through coordinated resource management.
Solution Approach 2:
The patent performs preliminary determination of resource locations for both SL PRS CCH and SL PRS before actual transmission. By pre-configuring and aligning the resource locations in conjunction, the system ensures that when transmission occurs, the resources are already optimized for both flexibility and reliability, avoiding last-minute conflicts or misalignments.
2Ease of operation
If SL PRS CCH and SL PRS use independent resource locations, then transmission independence is improved, but resource utilization efficiency deteriorates due to potential conflicts
Solution Approach 1:
The patent implements a dynamic resource location determination mechanism where the resource locations of SL PRS CCH and SL PRS are determined in conjunction based on system conditions and requirements. This dynamic approach allows the system to adapt resource allocation to current traffic patterns and positioning needs, maintaining transmission independence while optimizing resource utilization efficiency through coordinated management.
3Device complexity
If resource locations are determined independently, then configuration complexity is reduced, but positioning accuracy deteriorates due to lack of coordination
Solution Approach 1:
The patent merges the configuration processes of SL PRS CCH and SL PRS resource locations into a unified determination mechanism. By determining resource locations in conjunction rather than independently, the system ensures proper coordination between control channel and reference signal resources, thereby maintaining positioning accuracy while managing configuration complexity through an integrated approach.
Data Source
AI summary
Provided are a method by which a first device performs wireless communication, and a device for supporting same. The method may comprise the steps of: acquiring SL PRS configuration information including information related to a sidelink (SL) positioning reference signal (PRS) resource; transmitting an SL PRS control channel (CCH) to a second device, and transmitting an SL PRS to the second device. For example, the position of a resource related to the SL PRS CCH and the position of a resource related to the SL PRS are linked to each other, and thus can be determined.