GNSS Resource Control for Congestion-Aware Mobile Positioning
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Solution Overview
Problem
The potential congestion of communication resources and server resources in cloud GNSS architectures due to the transmission of sensor information from multiple mobile terminals, such as images, which can overwhelm communication bands and server capabilities.
Innovation Solution
A control device connected to mobile terminals via a communication network that controls resources based on the reception status of GNSS signals, dynamically adjusting communication and server resources to optimize their use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensor information such as images is transmitted from multiple mobile terminals to the edge/cloud for positioning calculation, then positioning accuracy can be improved, but communication resources and server resources may become congested
Solution Approach 1:
The patent implements dynamic resource allocation where the control device adjusts server resources and communication bandwidth based on real-time positioning requirements and GNSS signal conditions. When GNSS signals are available, minimal resources are used; when signals are degraded, resources are dynamically increased to maintain positioning accuracy through alternative methods using sensor information.
Solution Approach 2:
The system changes operational parameters based on GNSS signal quality. When GNSS signals are strong, the system uses standard positioning protocols with lower resource consumption. When signals weaken, the system transitions to using sensor fusion methods with adjusted transmission frequencies and resource allocation parameters to maintain accuracy without overwhelming communication resources.
2Measurement precision
If sensor information such as images is transmitted from multiple mobile terminals to the edge/cloud for positioning calculation, then positioning accuracy can be improved, but server resources on the edge/cloud may become congested
Solution Approach 1:
The control device dynamically adjusts server processing capacity based on the number of mobile terminals requiring positioning services and their GNSS signal conditions. When few terminals need positioning or GNSS signals are strong, server resources are allocated efficiently. When many terminals require positioning with poor GNSS signals, the system dynamically scales server resources to handle the increased computational load for sensor information processing.
Solution Approach 2:
The system enables mobile terminals to perform preliminary processing of sensor information locally before transmission to the edge/cloud. Terminals with good GNSS signals handle their own positioning independently, while only terminals with degraded signals transmit sensor data, reducing the overall processing burden on server resources while maintaining positioning accuracy where needed.
3Quantity of substance
If positioning calculation is performed on the mobile terminal side using GNSS signals, then communication resources are saved, but positioning accuracy may be insufficient in environments with poor GNSS signal reception
Solution Approach 1:
The system dynamically switches between terminal-side GNSS positioning and edge/cloud-based sensor fusion positioning based on signal conditions. When GNSS signals are strong, terminals perform local positioning calculation to conserve communication resources. When signals degrade, the system dynamically transitions to transmitting data to the edge/cloud for enhanced processing, maintaining positioning accuracy adaptively.
Solution Approach 2:
The edge/cloud server acts as an intermediary that receives sensor information from mobile terminals when GNSS positioning is insufficient. The server performs supplemental positioning calculations using sensor data and returns results to terminals, serving as a mediator that enhances positioning accuracy without requiring continuous high-bandwidth communication for all terminals.
Data Source
AI summary
A control device according to one aspect of the present disclosure is a control device to be connected to a mobile terminal including at least a GNSS receiver via a communication network, and includes a control unit configured to control resources available to the mobile terminal in accordance with a reception status of a GNSS signal in the GNSS receiver included in the mobile terminal.