Predictive Gateway Handover With Radio Resource Reservation
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Solution Overview
Problem
Inter-distributed unit handover in industrial wireless networks often causes communication interruptions and disruptions in Quality of Service (QoS) for mobile network devices like autonomous vehicles, due to the challenges in ensuring sufficient network resources during their movement between gateway devices.
Innovation Solution
A method and device that determine the destination gateway device based on movement information, including position, route, and velocity data, to reserve radio resources and coordinate schedulers for seamless handover, ensuring reliable communication by adjusting the route or velocity of mobile devices if resources are unavailable, thereby maintaining high QoS during handovers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If inter-distributed unit handover is performed in industrial wireless networks, then mobile network devices can move between gateway devices, but communication interruptions and QoS disruptions occur
Solution Approach 1:
The system performs preliminary actions by determining the target gateway device based on movement information (position, route, velocity) before the handover occurs. Radio resources are reserved at the target gateway in advance, and the source gateway prepares for resource release, ensuring seamless handover without communication interruptions
Solution Approach 2:
The handover mechanism dynamically adapts to mobile network device movement by continuously monitoring movement information and adjusting resource allocation accordingly. The system can modify route or velocity of mobile devices if resources are unavailable, maintaining QoS through dynamic decision-making
2Reliability
If radio resources are reserved at the target gateway device, then handover reliability is improved, but resource allocation complexity increases
Solution Approach 1:
The system implements feedback mechanisms where the source gateway device monitors resource availability at the target gateway and adjusts handover decisions accordingly. Movement information feedback enables the system to determine optimal handover timing and target gateway selection, reducing coordination complexity while maintaining reliability
Solution Approach 2:
The source gateway device acts as an intermediary that coordinates resource reservation between the mobile network device and target gateway. By centralizing the handover control logic at the source gateway, the system simplifies the overall coordination complexity while ensuring reliable resource allocation
Data Source
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AI summary
The current disclosure describes a method of performing a handover of a mobile network device from a first gateway device to a second gateway device. The method comprises determining the second gateway device from a plurality of gateway devices based on a movement information associated the mobile network device, wherein the movement information is indicative of a potential movement of the autonomous vehicle; and reserving one or more radio resources at the second gateway device in relation to the mobile network device and releasing one or more radio resources at the first gateway device in relation to the mobile network device. The movement information associated with the mobile network device is estimated based on at least one of process data associated with the mobile network device and the network information associated with the mobile network device.