Terminal Positioning via Cell ID and Geomagnetic Grouping
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Solution Overview
Problem
Existing positioning technologies face challenges in achieving simultaneous stability, precision, and accuracy due to reliance on signal sources, low precision in cell ID positioning, and interference from surface configurations in geomagnetic positioning.
Innovation Solution
A method that determines neighboring terminals with the same cell ID, combines geomagnetic information from both terminals to generate a geomagnetic information group, and uses this data to obtain geographic location information, thereby enhancing positioning stability and precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS technology or active signal device positioning is used, then positioning precision can be improved, but positioning stability deteriorates due to heavy dependence on signal sources
Solution Approach 1:
The patent combines multiple positioning technologies (cell ID positioning, geomagnetic positioning, and WiFi/Bluetooth positioning) into a unified positioning system. By merging these different positioning methods, the system achieves both high precision (from geomagnetic and active signal devices) and high stability (from cell ID positioning that does not depend on external signal sources), thereby resolving the technical contradiction between precision and stability.
2Reliability
If cell ID positioning technology is used, then positioning stability is improved, but positioning precision deteriorates due to low precision in cell range
Solution Approach 1:
The patent segments the positioning process into multiple stages: first using cell ID positioning to determine a rough location range, then using geomagnetic positioning and active signal device positioning within that range to achieve precise location. This segmentation allows the system to maintain stability from cell ID positioning while achieving high precision through subsequent refinement steps.
3Reliability
If geomagnetic positioning technology is used, then positioning can be implemented without signal sources, but positioning accuracy deteriorates due to interference from surface configuration
Solution Approach 1:
The patent uses cell ID positioning as an intermediary to first determine a rough location range, which then guides the geomagnetic positioning process. This intermediary step helps select appropriate reference points and filter out interference from surface configurations, thereby improving the accuracy of geomagnetic positioning while maintaining its advantage of not depending on external signal sources.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach maintains the stability of cell ID positioning while improving precision and accuracy by using hierarchical positioning techniques, overcoming limitations of unstable signal sources and low geomagnetic accuracy.
Implementation Method 1
a processor configured to: obtain a cell identity of a to-be-positioned terminal; determine at least one neighboring terminal of the to-be-positioned terminal according to the cell identity of the to-be-positioned terminal... obtain geomagnetic information of a location of each neighboring terminal... and geomagnetic information of a location of the to-be-positioned terminal
Data Source
AI summary
A positioning method includes: obtaining a cell identity of a to-be-positioned terminal; determining at least one neighboring terminal of the to-be-positioned terminal according to the cell identity of the to-be-positioned terminal, where a cell identity of each neighboring terminal of the at least one neighboring terminal is the same as the cell identity of the to-be-positioned terminal; obtaining geomagnetic information of a location of each neighboring terminal of the at least one neighboring terminal and geomagnetic information of a location of the to-be-positioned terminal, to generate a geomagnetic information group of the to-be-positioned terminal; and obtaining, geographic location information of the to-be-positioned terminal.