Terminal Positioning and Environment Sensing via LOS/NLOS Path Integration
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Solution Overview
Problem
Current 5G mobile communication technologies primarily focus on UE positioning using line-of-sight path measurements, neglecting non-line-of-sight path measurements necessary for accurate environment sensing, which is crucial for enhancing communication and sensing capabilities.
Innovation Solution
A method that simultaneously determines location information of a UE and environmental information through both line-of-sight and non-line-of-sight path measurement information, utilizing channel estimation, geometric models, and weighted least squares estimation to enhance positioning accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If only LOS path measurement is used for UE positioning, then the positioning method is simple, but the positioning accuracy and environment sensing capability are insufficient
Solution Approach 1:
The patent combines LOS path measurement and NLOS path measurement into a unified positioning framework. By merging these two measurement approaches and establishing an association relationship between them, the system achieves both accurate UE positioning and environment sensing capabilities while managing complexity through integrated processing.
Solution Approach 2:
The positioning system is designed to perform multiple functions simultaneously: it determines UE location information using both LOS and NLOS paths, and also extracts environment sensing information from the NLOS paths. This multi-functional approach improves measurement precision without requiring separate systems for positioning and sensing.
2Adaptability or versatility
If NLOS path measurement is added to achieve environment sensing, then the sensing capability is enhanced, but the system complexity increases
Solution Approach 1:
The patent merges UE positioning and environment sensing into a single integrated system that processes both LOS and NLOS path measurements simultaneously. By combining these functions and establishing mathematical associations between the measurement parameters, the system achieves enhanced sensing capability while avoiding the complexity of separate independent systems.
3Measurement precision
If both LOS and NLOS path measurements are integrated, then positioning accuracy and sensing information are improved, but the processing complexity increases
Solution Approach 1:
The patent performs preliminary channel estimation to extract measurement parameters from both LOS and NLOS paths before conducting the actual positioning and sensing calculations. By preparing the measurement parameters in advance and establishing the association relationship matrix beforehand, the system reduces the processing difficulty during the final computation stages.
Solution Approach 2:
The patent segments the complex processing task into distinct stages: channel estimation, extraction of LOS and NLOS measurement parameters, establishment of association relationship matrix, and final positioning/sensing calculation. This segmentation makes the overall processing more manageable and reduces the difficulty by breaking down the complex integrated processing into smaller, more tractable steps.
Data Source
AI summary
Provided are a terminal positioning and sensing method, an electronic device and a storage medium. The method includes: performing a channel estimation according to a received echo signal, and acquiring a channel parameter of the channel estimation; determining a line-of-sight path measurement parameter and a non-line-of-sight path measurement parameter based on the channel parameter; determining an association relationship matrix of the line-of-sight path measurement parameter and the non-line-of-sight path measurement parameter according to a preset echo geometric model; and determining positioning information and environment sensing information based on the association relationship matrix. In the present application, the determination of location information of a user equipment and the sensing of environmental information are simultaneously achieved through line-of-sight path measurement information and non-line-of-sight path measurement information, thereby increasing the positioning accuracy, enhancing the richness of communication information, and improving the usage experience of a user.