Hybrid Positioning Correction for Fast High-Accuracy Convergence
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Solution Overview
Problem
Existing technologies face challenges in achieving rapid convergence to high-accuracy positioning while efficiently managing network resources, particularly in determining the location of devices or users, as they often require excessive bandwidth and power consumption.
Innovation Solution
A hybrid approach using unicast and broadcast transport technologies is employed, where unicast is initially used for high signaling rates to achieve quick accuracy, followed by transitioning to broadcast for reduced resource utilization once a threshold accuracy is reached, combined with error correction data from reference and regional nodes to refine the location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If unicast transport technology is used at high signaling rates to achieve rapid convergence to high-accuracy positioning, then positioning accuracy and convergence speed are improved, but network bandwidth consumption and power usage increase excessively
Solution Approach 1:
The system dynamically switches between unicast and broadcast transport technologies based on positioning accuracy requirements. Initially, unicast is used for rapid convergence to centimeter-level accuracy, then transitions to broadcast for maintaining positioning with reduced network resource consumption. This dynamic adaptation resolves the contradiction by adjusting the signaling mode according to the current positioning state.
Solution Approach 2:
The system employs periodic positioning updates with varying signaling rates. During initial positioning, high-rate unicast signaling is used for fast convergence. Once threshold accuracy is achieved, the system switches to lower-rate broadcast signaling for periodic updates. This periodic action pattern allows rapid initial acquisition followed by efficient maintenance, resolving the energy consumption issue.
2Measurement precision
If unicast transport technology is used continuously to maintain high positioning accuracy, then positioning precision is improved, but network bandwidth and power resources are over-utilized
Solution Approach 1:
The system dynamically adjusts the signaling mode from unicast to broadcast based on whether positioning accuracy threshold is met. This dynamic transition optimizes network bandwidth usage by using resource-intensive unicast only when necessary for initial convergence, then switching to efficient broadcast mode for ongoing operations.
Solution Approach 2:
The system changes the transport technology parameter from unicast to broadcast mode based on positioning accuracy requirements. This parameter change allows the system to maintain high positioning accuracy while significantly reducing network bandwidth consumption during the maintenance phase, resolving the contradiction between precision and resource quantity.
3Productivity
If high signaling rates are used for continuous positioning updates, then positioning accuracy convergence is improved, but power consumption increases
Solution Approach 1:
The system uses high-rate signaling periodically only during the initial convergence phase when rapid accuracy improvement is needed. After reaching the accuracy threshold, it switches to lower-rate periodic updates using broadcast technology. This periodic high-rate action followed by lower-rate maintenance resolves the contradiction between productivity and energy usage.
Solution Approach 2:
The signaling rate dynamically adjusts based on positioning accuracy needs. High signaling rates are applied only when the system needs to converge to the accuracy threshold, then the rate decreases for maintenance operations. This dynamic rate adjustment maintains high convergence speed initially while reducing power consumption during steady-state operation.
Data Source
AI summary
Aspects of the subject disclosure may include, for example, computing a first location of a processing system, receiving first data via a unicast transport technology at a first rate, computing a first corrected location of the processing system in accordance with the first location and the first data, receiving second data via a broadcast transport technology, a multicast transport technology, or a combination thereof, at a second rate that is less than the first rate, and computing a second corrected location of the processing system in accordance with the second data. Other embodiments are disclosed.