Predictive QoS Notification for Vehicular V2X Communication
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Solution Overview
Problem
Current 5G communication systems face challenges in maintaining continuous and guaranteed Quality of Service (QoS) over local end-to-end paths in vehicular networks, particularly due to spatiotemporal dynamics and vehicle mobility, which can impact critical Vehicle-to-Everything (V2X) services like platooning and collision avoidance.
Innovation Solution
The introduction of predictive-QoS techniques that enable early notification and proactive re-configuration of local end-to-end paths by predicting changes in latency, data rate, and reliability based on mobility information, application behavior, and network conditions, allowing vehicles to adapt and maintain safe and efficient communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If local end-to-end paths are established for V2X communication, then transmission speed and latency are improved, but reliability of QoS provision deteriorates due to spatiotemporal dynamics and vehicle mobility
Solution Approach 1:
The system performs preliminary actions by predicting future QoS changes before they occur. The network device predicts QoS parameters (latency, data rate, reliability) for upcoming time intervals and notifies mobile devices in advance, allowing them to prepare adaptive measures before actual QoS degradation happens, thus maintaining reliability while using fast local paths.
Solution Approach 2:
The system implements feedback mechanisms where mobile devices report actual QoS experiences and mobility information back to the network device. This feedback loop enables the network to continuously update predictions and adjust notifications, improving the accuracy of QoS predictions and enhancing overall system reliability.
2Reliability
If predictive-QoS techniques are implemented, then QoS reliability is improved, but system complexity increases
Solution Approach 1:
The system segments the QoS management function into separate components: prediction functions in the network device, notification mechanisms, and adaptive response functions in mobile devices. This segmentation allows each component to be optimized independently, managing overall system complexity while maintaining QoS reliability.
Solution Approach 2:
The network device acts as an intermediary that centralizes the complex prediction and notification logic. By concentrating the predictive-QoS intelligence in the network rather than distributing it to all mobile devices, the system reduces individual device complexity while maintaining overall QoS reliability through coordinated network control.
3Duration of action of stationary object
If early notification of QoS change is provided, then service continuity is improved, but information processing requirements increase
Solution Approach 1:
The system extracts and processes only the most critical QoS parameters (latency, data rate, reliability) and mobility information needed for predictions. By selectively extracting essential information rather than processing all available data, the system maintains service continuity through early notification while minimizing information processing requirements.
Solution Approach 2:
The system implements partial action by providing notifications for only those QoS parameters and time intervals that are most critical for service continuity. Rather than notifying for all possible QoS changes, the system focuses on significant changes that would impact V2X services, reducing information processing overhead while maintaining essential service continuity.
Data Source
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AI summary
The disclosure relates to a mobile device (1300), in particular a vehicle, comprising: a transceiver (1301), configured to receive from a network a notification (1303) of an estimated and/or expected change of a Quality-of-Service, QoS related to a local end-to-end data communication path; and a processor (1302) configured to trigger and/or apply the change of QoS of the local end-to-end data communication path. The disclosure further relates to a network device (1400), in particular a base station or a mobility management entity, comprising: a radio interface (1401), configured to transceive communication data (1403) via a communication path, in particular a local end-to-end data communication path between a mobile device (1300) and another mobile device, based on a Quality-of-Service, QoS, requirement for the communication path; and a network entity controller (1402), configured to notify (1303) the mobile device (1300) about an expected or estimated change of the QoS related to the communication path.