Sidelink PRS Resource Pool Sharing via PSCCH Blind Detection
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Solution Overview
Problem
The scarcity of transmission resources in sidelink communication for positioning measurement signals poses a challenge, making it difficult to configure dedicated resources for each terminal device, thereby limiting the communication capability of sidelink.
Innovation Solution
A method involving determining PSCCH frequency-domain resource ranges within a resource pool based on configuration parameters and performing SCI blind detection to allocate available transmission resources for PRS, allowing multiple terminal devices to share a slot for PRS transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If dedicated positioning measurement resources are configured for each terminal device, then positioning measurement capability is improved, but transmission resource consumption increases
Solution Approach 1:
The patent merges positioning measurement resources across multiple terminal devices by allowing them to share the same time-frequency resources. Multiple UEs perform positioning measurements simultaneously using common PRS resources, eliminating the need for dedicated resources per device while maintaining measurement capability through proper resource pooling and sharing mechanisms.
Solution Approach 2:
The patent creates universal positioning measurement resources that serve multiple terminal devices simultaneously. The resource pool is designed to be multi-functional, supporting positioning measurements for different UEs using the same PRS configurations, thereby reducing overall resource consumption while maintaining universal positioning capability across the network.
2Adaptability or versatility
If transmission resources are allocated for positioning measurement signals, then positioning functionality is enabled, but resource pool utilization efficiency decreases
Solution Approach 1:
The patent ensures continuous utilization of positioning resources by implementing a resource pooling mechanism where PRS resources are continuously available and shared among multiple terminal devices. Instead of allocating dedicated resources that may remain idle, the system maintains continuous useful action by allowing dynamic sharing of the same resource pool across different UEs and time instances.
3Productivity
If resource pooling for positioning measurement is implemented, then resource utilization efficiency is improved, but device complexity increases
Solution Approach 1:
The patent implements self-service mechanisms where terminal devices autonomously select and utilize positioning resources from the shared pool based on their own positioning needs. Each UE independently performs resource selection and PRS measurement without requiring complex centralized allocation, thereby reducing overall system complexity while maintaining high resource utilization efficiency through distributed self-organization.
Data Source
AI summary
A resource allocation method and apparatus, and a storage medium, where the method includes: a terminal device obtains a resource configuration parameter of a resource pool, determines at least one PSCCH frequency-domain resource range on a frequency domain of the resource pool based on the resource configuration parameter, and performs SCI blind detection in the at least one PSCCH frequency-domain resource range, to determine an available transmission resource of a PRS in the resource pool based on an SCI blind detection result.