Sidelink Resource Pool Configuration for Accurate 5G Positioning
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Solution Overview
Problem
The increasing demand for accurate and rapid positioning in 5G wireless communication systems, particularly through sidelink, is not adequately addressed by existing methods, which lack efficient mechanisms for configuring and utilizing sidelink resources for precise location determination.
Innovation Solution
A method and apparatus for receiving SystemInformationBlock12 in a first cell and transmitting either a SL MAC CE or sidelink signals on configured resource pools, utilizing SL-ResourcePool IE and SL_Pos_ResourcePool IE, to enable sidelink positioning through synchronization signals and PRS transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sidelink positioning is implemented using existing methods, then basic positioning functionality is provided, but positioning accuracy and efficiency are insufficient
Solution Approach 1:
The patent divides sidelink resources into separate resource pools: SL-ResourcePool IE for general sidelink communication and SL_Pos_ResourcePool IE for positioning-specific resources. This segmentation allows positioning operations to use dedicated resources with optimized parameters, improving positioning accuracy while maintaining clear resource management boundaries.
Solution Approach 2:
The patent applies local quality by configuring positioning-specific resource pools with specialized parameters (SL_Pos_ResourcePool IE) that are optimized for positioning operations. These localized resource configurations provide tailored resource allocation for positioning signals, enhancing measurement precision without affecting general sidelink communication resources.
2Productivity
If multiple resource pools are configured for sidelink positioning, then positioning efficiency is improved, but system complexity increases
Solution Approach 1:
The patent creates a universal resource pool configuration framework where SL-ResourcePool IE serves general sidelink purposes and SL_Pos_ResourcePool IE serves positioning purposes. Both resource pool types follow similar configuration structures, allowing the system to handle multiple functions through a unified configuration approach, thereby improving positioning efficiency without proportionally increasing complexity.
Solution Approach 2:
The patent establishes resource pool configurations in advance through system information (SystemInformationBlock12) before positioning operations begin. By pre-configuring SL_Pos_ResourcePool IE with positioning-specific parameters, the system eliminates real-time configuration complexity during actual positioning operations, improving positioning efficiency while managing complexity through upfront planning.
3Measurement precision
If dedicated positioning resource pools are used, then positioning accuracy is enhanced, but resource allocation complexity increases
Solution Approach 1:
The patent introduces a new configuration dimension by adding SL_Pos_ResourcePool IE as a separate information element from general SL-ResourcePool IE. This dimensional separation in the configuration space allows positioning resources to be independently optimized with specific parameters while maintaining compatibility with the overall resource management framework, achieving enhanced accuracy without linearly increasing complexity.
Data Source
AI summary
A Method and Apparatus for sidelink positioning is provided. The method includes receiving a SystemInformationBlock12 in a first cell, and transmitting to a type1 UE either a SL MAC CE or a first sidelink signal or a second sidelink signal. The SystemInformationBlock12 includes a SL-ConfigCommonNR and a SL_Pos_ConfigCommon. The SL_Pos_ConfigCommon includes a one or more Sl_Pos_ResourcePool IEs. The first sidelink signal is transmitted on a second resource pool. The second sidelink signal is transmitted on a third resource pool. The first sidelink signal is Synchronization signal or PSBCH and the second sidelink signal is PRS. The first resource pool is configured by a first SL-ResourcePool IE in SystemInformationBlock12. The second resource pool is configured by a second SL-ResourcePool IE in SystemInformationBlock12. The third resource pool is configured by a SL_Pos_ResourcePool IE in the RRCReconfigurationSidelink. The SL MAC CE is transmitted on a first resource pool.