WLAN Position Determination Using Exceeded-Bandwidth Channel Data
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Solution Overview
Problem
Current methods for determining the position relationship between wireless local area network (WLAN) devices are inefficient due to manual measurement, leading to low accuracy and efficiency.
Innovation Solution
A method that combines wireless channel characteristic data from multiple WLAN channels within a single frequency band to determine the position relationship between WLAN devices, utilizing exceeded-bandwidth wireless channel characteristic data to improve accuracy and efficiency by increasing bandwidth and time resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual measurement is used to determine position relationship between WLAN devices, then measurement can be performed with simple equipment, but determining efficiency is low
Solution Approach 1:
The patent replaces manual mechanical measurement with automatic electronic measurement using wireless channel characteristic data. The system automatically obtains channel state information through wireless signals, performs digital signal processing to extract position relationships, eliminating the need for manual laser ranging or physical measurement tools.
Solution Approach 2:
The WLAN devices themselves perform the measurement by utilizing their existing wireless communication capabilities. The devices automatically exchange channel state information and compute position relationships without requiring external measurement equipment or manual intervention, making the system self-sufficient.
2Measurement precision
If exceeded-bandwidth wireless channel characteristic data is used, then position relationship accuracy is improved, but data processing complexity increases
Solution Approach 1:
The patent combines wireless channel characteristic data from multiple WLAN channels to form exceeded-bandwidth data. By merging information across channels, the system achieves higher measurement precision through increased bandwidth, leveraging the complementary information from each channel to improve position relationship accuracy.
Solution Approach 2:
The system changes the bandwidth parameter by utilizing exceeded-bandwidth data that exceeds the maximum single channel bandwidth. This parameter change improves time resolution and measurement accuracy, as higher bandwidth provides finer temporal resolution for determining position relationships based on signal propagation characteristics.
3Measurement precision
If exceeded-bandwidth wireless channel characteristic data is used, then position relationship accuracy is improved, but computational resources required increase
Solution Approach 1:
The system performs preliminary actions by collecting and organizing wireless channel characteristic data from multiple channels before the actual position calculation. This preprocessing includes obtaining channel state information, organizing the exceeded-bandwidth data, and preparing the computational inputs, which streamlines the subsequent accuracy-improving calculations.
Data Source
AI summary
A position relationship determining method and apparatus includes determining a position relationship between a first wireless local area network (WLAN) device and a second WLAN device based on exceeded-bandwidth wireless channel characteristic data, where the exceeded-bandwidth wireless channel characteristic data is a result obtained after combining wireless channel characteristic data corresponding to all WLAN channels in a channel set, the channel set includes at least two WLAN channels, all the WLAN channels in the channel set belong to a single WLAN frequency band, a total bandwidth occupied by all the WLAN channels in the channel set is greater than 160 megahertz and is greater than a maximum single channel bandwidth supported by the single WLAN frequency band.