Barometer Positioning Correction via Environmental Data
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Solution Overview
Problem
Current wireless communication systems face challenges in accurately measuring position due to errors caused by the surrounding environment when using barometers, particularly indoors where temperature and humidity can significantly affect barometer readings.
Innovation Solution
Incorporating barometer information into discovery signals or communication signals, allowing User Equipment (UE) to transmit and receive temperature/humidity information, which can be used to correct barometer readings, and sharing this information via Device-to-Device (D2D) communication or with eNBs to improve positioning accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If barometer is used to measure position, then positioning capability is provided, but measurement precision deteriorates due to environmental errors
Solution Approach 1:
The patent introduces temperature and humidity sensors as intermediary devices that measure environmental conditions affecting the barometer. These environmental parameters serve as mediators that allow the system to understand and compensate for the harmful environmental effects on barometric pressure measurements, thereby improving positioning accuracy without eliminating the barometer itself.
Solution Approach 2:
The patent implements a feedback mechanism where temperature and humidity measurements are continuously obtained and used to adjust or compensate the barometric pressure readings. This closed-loop feedback allows the system to correct environmental errors in real-time, transforming the harmful environmental factors into useful correction data that improves overall measurement precision.
2Measurement precision
If multiple sensors are added for environmental correction, then measurement precision improves, but device complexity increases
Solution Approach 1:
The patent makes the mobile device environmentally adaptive by equipping it with multiple sensors (temperature, humidity, barometer) that work together in an integrated system. Rather than adding complex specialized equipment, the patent uses universal mobile device components that can perform multiple functions: the same device that communicates and processes data also houses all sensors and performs environmental compensation calculations, reducing overall system complexity.
Data Source
Figure 1(a)~1(b)
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AI summary
One embodiment of the resent invention is a method for a user equipment transmitting/receiving information related to a barometer in a wireless communication system, the method for transmitting/receiving information related to a barometer comprising the steps of: transmitting positioning information to an evolved NodeB; receiving temperature/humidity information based on the positioning information; and transmitting, to the evolved NodeB, barometer information based on the temperature/humidity information, wherein the barometer information is corrected using the temperature/humidity information.