Multi-Device Position Fix Sharing Under Poor RF Conditions
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Solution Overview
Problem
Computer devices experiencing poor RF conditions face challenges in accurately and quickly determining their position due to signal interference or blockage, which is critical in emergency situations where precise location information is needed.
Innovation Solution
A second computer device with better RF conditions shares its position information with a first device experiencing poor conditions, enabling faster and more accurate position determination through techniques like co-located positioning and assistance information sharing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a device independently determines position using GNSS satellites, then position determination can be achieved, but the speed and accuracy are reduced under poor RF conditions
Solution Approach 1:
The patent introduces a second device as an intermediary that experiences better RF conditions. This second device determines position independently and shares the position information with the first device, effectively mediating the harmful RF conditions affecting the first device's direct satellite communication
Solution Approach 2:
The second device performs position determination in advance and shares the results with the first device. This preliminary action allows the first device to obtain position information faster than it could determine independently under poor RF conditions
2Loss of time
If a device determines position independently under poor RF conditions, then position can be determined, but the time required increases significantly
Solution Approach 1:
The second device acts as a mediator that has successfully determined position under better RF conditions and transmits this information to the first device, reducing the time loss for the first device without compromising reliability
Solution Approach 2:
The system implements feedback by having the second device share its successfully determined position information with the first device, allowing the first device to benefit from the second device's successful position acquisition under better RF conditions
Data Source
AI summary
Techniques are described for multi-device position determination. An example method can include processing a request for a position of the first device, the first device having a direct data connection with a second device and executing an application that generates the request. The method can further include determining first position information indicating the position of the first device. The method can further include causing the second device to generate second position information indicating a position of the second device. The method can further include processing the second position information received from the second device. The method can further include selecting between using the first position information and the second position information as indicating the position of the first device. The method can further include providing the selected position information to the application.