Sidelink Positioning Dedicated Resource Pool Configuration
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Solution Overview
Problem
Existing wireless communication networks face challenges in efficiently configuring and determining dedicated resource pools for sidelink positioning, which is crucial for accurate UE positioning and ranging, especially in scenarios like vehicle-to-everything (V2X) communications, where direct peer-to-peer communication is necessary without intermediary infrastructure.
Innovation Solution
The implementation of a method where user equipment (UE) obtains a message to configure a dedicated resource pool for sidelink positioning, determines sidelink positioning resources, and transmits a sidelink positioning reference signal (SL-PRS) using these resources, with features like SCI and SL-PRS sections, AGC symbols, and RSRP threshold adjustments to ensure effective resource allocation and communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a dedicated resource pool is configured for sidelink positioning, then positioning accuracy is improved, but resource allocation complexity increases
Solution Approach 1:
The resource pool is segmented into dedicated sidelink positioning resources and other communication resources. The message from the base station contains specific resource pool configurations that separate positioning resources (e.g., SL-PRS resources) from general sidelink communication resources, allowing independent management and allocation of positioning-specific resources while maintaining overall system organization.
2Adaptability or versatility
If UE autonomously determines positioning resources from dedicated pool, then resource allocation flexibility is improved, but risk of resource conflict increases
Solution Approach 1:
The base station performs preliminary configuration by providing the UE with a dedicated resource pool configuration message before sidelink positioning occurs. This message pre-defines the available positioning resources, their parameters, and allocation rules, enabling the UE to autonomously select resources without real-time coordination while avoiding conflicts through pre-established resource separation.
3Reliability
If SCI and SL-PRS sections are structured with multiple symbols, then communication reliability is improved, but transmission time increases
Solution Approach 1:
The SCI and SL-PRS sections are organized with periodic structures where multiple symbols are grouped into defined sections with specific time relationships. Gap symbols are periodically inserted between sections to provide processing time, creating a rhythmic transmission pattern that balances reliability through repeated symbol structures with time efficiency through standardized periodic intervals.
Data Source
AI summary
A processor is provided. The processor has circuitry that executes instructions to cause a user equipment (UE) to perform operations. The operations include obtaining a message that configures a dedicated resource pool for sidelink positioning. The operations include determining a sidelink positioning resource from the dedicated resource pool. The operations include transmitting a sidelink positioning reference signal (SL-PRS) using the sidelink positioning resource. A method and a UE are also provided.