UE Ray-Tracing Configuration for Wireless Channel Modeling
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Solution Overview
Problem
Existing ray-tracing (RT) methods for wireless communication systems are computationally expensive and require validation using real-world measurements, which can be challenging to implement efficiently without reporting data to the network.
Innovation Solution
User equipment (UE) performs ray-tracing procedures based on an environment model and configuration, transmitting a report to a network component to update a digital twin of the environment, facilitating more efficient and accurate RT procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ray-tracing procedures are performed using existing methods, then wireless channel modeling accuracy is improved, but computational complexity and processing time increase significantly
Solution Approach 1:
The network component performs ray-tracing procedures in advance to generate predicted wireless channel characteristics before actual communication occurs. These pre-computed results are stored and reused, eliminating the need for real-time ray-tracing calculations at the user equipment, thus reducing computational complexity while maintaining modeling accuracy.
Solution Approach 2:
Instead of performing complex ray-tracing calculations at the user equipment, the patent uses pre-generated ray-tracing results from the network component as copies. The user equipment receives and utilizes these pre-computed wireless channel models, avoiding the need to replicate the entire ray-tracing computational process locally.
2Manufacturing precision
If ray-tracing procedures are performed with high accuracy, then digital twin modeling quality is improved, but processing time and computational resources increase
Solution Approach 1:
The network component performs comprehensive ray-tracing procedures and generates accurate digital twin models in advance. These pre-computed high-accuracy models are stored in the network and retrieved when needed, allowing high-quality digital twin modeling without incurring real-time processing delays at the user equipment.
3Measurement precision
If ray-tracing configuration is determined and executed at user equipment, then RT procedure accuracy is improved, but ease of operation and implementation difficulty worsen
Solution Approach 1:
The network component acts as an intermediary that performs the complex ray-tracing configuration and execution tasks. Instead of requiring user equipment to independently determine and execute RT configurations, the network component handles these operations centrally and provides results to user equipment, maintaining accuracy while simplifying operation.
Data Source
AI summary
Aspects of the disclosure are directed to ray-tracing (RT) configurations (e.g., RT parameters such as the number of reflections, refractions (transmissions through walls), diffractions, scattering type/modeling, etc., and so on) for a RT procedure associated with modeling one or more wireless channels in an environment. In an aspect, a user equipment (UE) performs the RT procedure based on a model of the environment and a respective RT configuration. The UE transmits a RT report based on the RT procedure to a network component (e.g., a digital twin (DT) entity, location management function (LMF), or sensing management function (SnMF)), which may then utilize the RT report to update a digital twin (DT) of the environment. Such aspects may provide various technical advantages, such as more efficient RT procedures, higher quality RT procedures, more accurate DT modeling, etc.