Path Information Encoding for LOS/NLOS Positioning Accuracy
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Solution Overview
Problem
Existing positioning technologies face challenges in accurately distinguishing between line of sight (LOS) and non-line of sight (NLOS) paths due to signal reflections from obstacles, leading to reduced positioning accuracy in non-line of sight environments.
Innovation Solution
A method and apparatus that transmit path information indicating the likelihood of LOS or NLOS paths, allowing for improved path identification and accuracy by receiving additional information on the accuracy of this path information, enabling better resource management and algorithm adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If path information is transmitted to improve positioning accuracy, then positioning accuracy is improved, but resource overhead increases
Solution Approach 1:
The patent changes the parameter representation by encoding path information as probability values (e.g., 0-3 scale representing different likelihood levels of LOS/NLOS) rather than raw measurement data. This parameter transformation reduces the bandwidth required for transmission while preserving the essential information needed for accurate positioning, directly resolving the contradiction between positioning accuracy and resource overhead.
2Measurement precision
If path information transmission is implemented, then path identification performance is improved, but device complexity increases
Solution Approach 1:
The patent employs lightweight, simple encoding schemes for path information that can be easily generated and processed by standard communication devices. The probability-based representation uses minimal computational resources and simple data structures, avoiding complex algorithms while still achieving improved path identification performance, thus resolving the contradiction between performance improvement and device complexity.
Data Source
AI summary
A positioning information transmission method, an apparatus, a storage medium, and a computer program product are provided, so that a first apparatus receives information indicating accuracy of path information, and improves a path identification solution based on the information, thereby improving accuracy of the path information, and improving positioning accuracy. In this application, the first apparatus sends at least one piece of first information, where the at least one piece of first information is used for positioning, first information in the at least one piece of first information includes measurement information and path information, and the path information indicates a likelihood that a path corresponding to the measurement information is an LOS path and/or an NLOS path. The first apparatus receives second information, where the second information indicates accuracy of the path information.