Location Protocol for Synchronizing Wireless Coordinate Domains
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Solution Overview
Problem
Indoor navigation systems face challenges in accurately determining location within large areas like buildings due to the presence of multiple wireless communication networks with different coordinate domains, leading to conflicts and loss or corruption of coordinate grid values.
Innovation Solution
A location protocol that enables conflict resolution and synchronization between wireless communication networks with different coordinate domains by detecting conflicting network elements, exchanging information, comparing coordinate data, and determining a resolution phase to either merge, separate, or bridge the domains for accurate location determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple wireless communication networks with different coordinate domains operate in the same large area, then network coverage and connectivity are improved, but coordinate conflicts and data corruption occur
Solution Approach 1:
The patent introduces a location server as an intermediary that receives location information from multiple wireless communication networks, performs coordinate transformations to a reference coordinate system, and resolves conflicts between different coordinate domains. This mediator enables multiple networks to operate simultaneously without direct coordinate conflicts.
Solution Approach 2:
The patent transforms coordinate parameters from different local coordinate systems into a unified reference coordinate system. By changing the coordinate domain parameters through mathematical transformations, the system maintains data integrity while supporting multiple networks with different coordinate domains.
2Measurement precision
If local coordinate grids are used for each communication network, then location accuracy within each network is improved, but coordination between networks becomes complex
Solution Approach 1:
The patent segments the coordinate system management into two parts: local coordinate grids maintained by each wireless communication network for high-precision local measurements, and a reference coordinate system managed by the location server for inter-network coordination. This segmentation allows each network to maintain its own coordinate domain while enabling seamless integration.
Solution Approach 2:
The location server acts as an intermediary that handles coordinate transformations between local coordinate grids and the reference coordinate system. This mediator simplifies the complexity by centralizing the transformation logic, allowing individual networks to maintain simple local coordinate systems while achieving complex inter-network coordination through the server.
3Loss of information
If coordinate information is exchanged between networks, then location synchronization is improved, but information loss or corruption may occur
Solution Approach 1:
The patent creates a transformed copy of coordinate information from local coordinate systems into the reference coordinate system. Instead of directly exchanging raw coordinate data between networks (which may lead to corruption), the location server creates standardized copies in the reference coordinate system, ensuring information completeness and precision is maintained during exchange.
Data Source
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AI summary
Some demonstrative embodiments include apparatuses, systems and/or methods of communication between wireless networks having different coordinate domains. For example, a first wireless communication device may include a radio to communicate over a first wireless network having a first coordinate domain, the radio to receive a message from 5 a second wireless device of a second wireless network having a second coordinate domain, the message including coordinate information of the second coordinate domain; and a controller to determine, based on the coordinate information, a usage of the second coordinate domain by the first wireless communication device, and to publish the usage to the second wireless communication device.