Collaborative UE Location Sharing for Uncertainty Reduction
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Solution Overview
Problem
Current techniques fail to efficiently exchange rich location information between devices in a group to accurately estimate locations while accounting for uncertainty in measurements, and lack procedures for distributing responsibilities of detecting and sharing location data.
Innovation Solution
Devices in a group communicate to exchange location estimates and metadata, combining them to reduce uncertainty and optimize power consumption by leveraging more precise estimates from other devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If devices independently determine location estimates using traditional methods, then each device can obtain location information, but location estimation accuracy is limited due to measurement uncertainty and lack of collaborative refinement
Solution Approach 1:
The patent combines location estimates from multiple devices through iterative exchange and fusion of location information. Each device shares its location estimate with group members, and the system fuses these estimates to produce a more accurate collective location determination, reducing individual measurement uncertainty through collaborative refinement
Solution Approach 2:
The patent implements feedback mechanisms where devices exchange location estimates and uncertainty metrics iteratively. Each device receives feedback from others about their location estimates and uses this information to refine its own determination, continuously improving accuracy through repeated cycles of estimation, sharing, and adjustment
2Measurement precision
If all devices continuously detect and share location data, then location estimation accuracy improves, but power consumption increases significantly
Solution Approach 1:
The patent applies partial action by having devices perform location detection and sharing only when necessary rather than continuously. Devices can opt to share location information selectively based on group needs and their own capabilities, achieving sufficient geolocation precision without the excessive energy consumption of continuous operation for all devices
Solution Approach 2:
The patent creates a universal location sharing system where devices with varying capabilities can participate in the collaborative location determination. Devices can contribute location data when available and beneficial, while relying on other group members' data when appropriate, allowing the system to function effectively with partial participation from different devices
3Reliability
If devices exchange detailed location information and metadata, then uncertainty in measurements is reduced, but communication overhead and system complexity increase
Solution Approach 1:
The patent segments location information exchange into structured components including location estimates, uncertainty metrics, and optional metadata. This segmentation allows devices to exchange only the necessary portions of location data relevant to reducing measurement uncertainty, avoiding the need to share all possible information and thereby limiting system complexity while maintaining reliability improvements
Data Source
AI summary
Techniques are provided for collaboratively determining a location estimate for a UE. A UE can determine that it is moving with one or more other wireless device. The UE can determine a location estimate based upon location information and location metadata. The UE can determine an uncertainty of the location estimate based upon values of the location information and the location metadata. These and many other features and examples are described.