Gateway Handover Using Movement Prediction for Stable Industrial QoS
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Solution Overview
Problem
Inter-distributed unit (interDU) handover in industrial wireless networks often causes communication interruptions and disruptions in Quality of Service (QoS) for mobile network devices such as mobile robots and autonomous vehicles.
Innovation Solution
A method and device for performing a handover of mobile network devices from one gateway device to another, where the destination gateway device is determined based on movement information, and radio resources are reserved and released accordingly to ensure seamless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional inter-distributed unit handover is performed, then mobile network devices can move between coverage areas, but communication interruptions and QoS disruptions occur
Solution Approach 1:
The patent performs resource reservation at the target gateway device before the actual handover occurs. By determining the target gateway based on movement information and reserving radio resources in advance, the system prepares the handover path beforehand, preventing communication interruptions during the transition between gateways.
Solution Approach 2:
The patent introduces a resource reservation mechanism as an intermediary step between the mobile device and the target gateway. This intermediary process ensures that necessary radio resources are secured before handover, acting as a buffer that maintains communication continuity during the transition.
2Reliability
If resource reservation is performed in advance based on movement information, then handover reliability improves, but system complexity increases
Solution Approach 1:
The patent enables mobile network devices to provide their own movement information (such as trajectory, speed, and destination) to the network system. This self-service approach reduces the need for complex network-side tracking and prediction mechanisms, as the mobile device itself contributes to the handover decision-making process.
Solution Approach 2:
The patent implements a feedback mechanism where movement information from mobile devices is continuously monitored and used to dynamically adjust resource reservations. This feedback loop allows the system to adapt to changing movement patterns without requiring overly complex predetermined handover strategies.
Data Source
AI summary
A method of performing a handover of a mobile network device from a first gateway device to a second gateway device includes 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. The method further includes 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.