Sidelink Positioning Reference Signal Resource Request Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in efficiently requesting and allocating sidelink positioning reference signal resources, particularly in scenarios requiring high bandwidth for accurate positioning, where existing methods lack effective mechanisms for resource management and allocation.
Innovation Solution
The method involves a User Equipment (UE) requesting sidelink positioning reference signal resources from a network node, with the UE configured to determine and derive the required resources based on specific parameters such as priority, bandwidth, and timing, and transmitting a scheduling request to the network for resource allocation, utilizing sidelink resource pools and control channels for efficient resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high bandwidth is allocated for sidelink positioning reference signal transmission, then positioning accuracy is improved, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent implements dynamic resource allocation where the network node adjusts the bandwidth and timing of sidelink positioning reference signals based on real-time UE requests and current resource utilization status. This allows the system to allocate high bandwidth only when needed for accurate positioning while maintaining efficiency during normal operations through adaptive resource management.
Solution Approach 2:
The system changes key parameters including bandwidth, timing, and frequency of sidelink positioning reference signals based on UE positioning requirements and network conditions. By dynamically adjusting these parameters rather than maintaining fixed high bandwidth allocation, the system achieves both positioning accuracy and resource efficiency.
2Reliability
If sidelink positioning reference signal resources are allocated based on UE requests, then positioning reliability is improved, but system complexity increases
Solution Approach 1:
The network node serves as an intermediary that manages the complexity of resource allocation between UEs and available sidelink resources. It processes UE positioning requests, determines appropriate resource allocations, and coordinates timing and bandwidth parameters, thereby ensuring reliable positioning while centralizing the complexity management in the network infrastructure.
Solution Approach 2:
The system implements feedback mechanisms where UEs indicate their positioning requirements and the network node responds with appropriate resource allocations. This feedback loop ensures reliable positioning by adapting to actual UE needs while managing complexity through structured request-response protocols rather than complex autonomous decision-making at the UE level.
3Productivity
If sidelink grant utilization for positioning is optimized, then resource efficiency is improved, but positioning speed decreases
Solution Approach 1:
The network node performs preliminary actions by pre-configuring sidelink resource pools and preparing positioning reference signal transmissions before actual positioning operations are needed. This allows for efficient resource utilization through advance resource preparation while maintaining the ability to quickly activate positioning services when required, balancing efficiency with speed.
Data Source
AI summary
Methods, systems, and apparatuses are provided for a first device receiving configuration of one or more sidelink resource pools enabled or supported for sidelink reference signal transmission, triggering one or more sidelink reference signal resource requests for performing one or more sidelink reference signal transmissions, generating a first message for sidelink reference signal, wherein the first message for sidelink reference signal comprises information of the one or more sidelink reference signal resource requests, and wherein information of a sidelink reference signal resource request comprises any of a priority of sidelink reference signal, a destination index or Identity (ID) of sidelink reference signal, and a bandwidth (requirement) of sidelink reference signal, and transmitting the first message for sidelink reference signal to a network node.