Data Flow Handover Synchronization for Seamless 5G QoS
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Solution Overview
Problem
Existing 5G and 6G communication systems face challenges in efficiently managing handover for synchronization of multiple service data flows, particularly in scenarios involving diverse access networks and network slices, leading to disruptions in service continuity and QoS management.
Innovation Solution
The implementation of enhanced handover mechanisms in 5G and 6G systems that synchronize multiple service data flows by leveraging network functions such as AMF, SMF, and UPF, along with unified policy frameworks and edge computing, to ensure seamless connectivity and QoS across various access types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing handover mechanisms are used in 5G and 6G systems, then device connectivity is maintained, but service continuity is disrupted and QoS management deteriorates during handovers
Solution Approach 1:
The patent segments the handover process into distinct phases: active data flow identification, pause indication generation, data flow suspension, and resumption. This segmentation allows each phase to be managed independently, improving service continuity while maintaining manageable complexity through structured process division.
Solution Approach 2:
The patent applies preliminary action by identifying and pausing active data flows before the handover occurs. The network device generates a pause indication to suspend data flow transmission in advance, preventing data loss and ensuring seamless service continuity during the handover transition.
2Reliability
If multiple service data flows are synchronized during handover, then service continuity is improved, but network function complexity increases
Solution Approach 1:
The patent introduces an intermediary pause indication mechanism that mediates between the network device and terminal device during handover. This intermediary signal coordinates the suspension and resumption of multiple data flows across different network functions (AMF, SMF, UPF), enabling synchronized handover while distributing complexity across specialized functions rather than concentrating it in a single complex system.
3Reliability
If data flows are paused during handover, then service continuity is maintained, but transmission time increases
Solution Approach 1:
The patent implements skipping by rapidly transitioning data flows through the paused state during handover. The pause indication is generated and executed efficiently, allowing the system to rush through the critical handover period with minimal suspension time, then immediately resume data flows to minimize overall latency while maintaining service continuity.
Data Source
AI summary
A second base station receives, from a first base station, an indication of synchronization of data flows of one or more wireless devices. The second base station synchronizes forwarding, based on the indication of synchronization, of packets of the data flows.