Sidelink Positioning Capability Negotiation for Efficient UE Selection
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Solution Overview
Problem
There is a need for improved methods and apparatuses to efficiently transmit sidelink positioning data in wireless communication systems, particularly in next-generation wireless access technologies like New Radio (NR), to support vehicle-to-everything (V2X) communication and address the growing demand for enhanced mobile broadband communication, massive machine type communication, and ultra-reliable and low latency communication.
Innovation Solution
A method and apparatus for a user equipment (UE) to transmit and receive sidelink positioning computational capability information, determining a sidelink positioning calculation UE through negotiation based on the exchanged capability information, including coverage situation and radio resource control state information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If sidelink positioning data is transmitted using existing methods, then basic positioning functionality is achieved, but transmission efficiency and resource utilization are insufficient
Solution Approach 1:
The patent combines positioning capability negotiation with existing sidelink communication setup procedures. The capability information exchange is integrated into the ongoing communication protocol framework, allowing positioning functionality to be established without separate dedicated signaling procedures, thereby improving transmission efficiency while reducing additional resource consumption.
Solution Approach 2:
The patent creates a universal capability negotiation mechanism that can be applied across different sidelink communication scenarios (V2V, V2I, V2P). The same negotiation framework supports various positioning methods and communication types, making the system more efficient by avoiding scenario-specific duplicate implementations and optimizing resource utilization across diverse applications.
2Measurement precision
If comprehensive capability information is exchanged between UEs, then accurate positioning calculation UE determination is achieved, but negotiation complexity increases
Solution Approach 1:
The patent segments the capability information exchange into structured fields including computation capability indicators, positioning method support, and coverage situation information. This segmentation allows UEs to exchange comprehensive capability data in an organized manner, enabling accurate determination of the positioning calculation UE while managing negotiation complexity through systematic information categorization.
Solution Approach 2:
The patent introduces specific parameters such as computation capability indicators and coverage situation information that change based on UE capabilities and environmental conditions. These parameter changes enable dynamic adaptation of the negotiation process, allowing accurate UE determination while keeping the negotiation framework manageable through standardized parameter sets rather than unstructured comprehensive exchanges.
3Measurement precision
If sidelink positioning calculation is performed with negotiated UE selection, then positioning accuracy is improved, but signaling overhead increases
Solution Approach 1:
The patent performs capability information exchange and UE selection negotiation in advance before actual positioning calculations are needed. By establishing the positioning calculation UE selection beforehand, the system improves positioning accuracy through proper UE selection while minimizing signaling overhead during the actual positioning process, as the negotiation results are reused for subsequent positioning operations.
Data Source
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AI summary
The present disclosure relates to a method of performing sidelink positioning by a user equipment (UE) in a wireless communication system. Specifically, the method comprises the steps of: transmitting first sidelink positioning calculation capability information to at least one anchor UE; receiving second sidelink positioning calculation capability information from the at least one anchor UE; and determining a sidelink positioning calculation UE among the at least one anchor UE and the UE on the basis of a negotiation considering the first sidelink positioning calculation capability information and the second sidelink positioning calculation capability information.