Access Network Device Data Flow Switching via End Marker Indication
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Solution Overview
Problem
In wireless communications, the switching of data flows between access network devices can lead to service interruptions due to the lack of effective methods to manage data flow transitions.
Innovation Solution
A data processing method where an access network device receives an end marker message with indication information, allowing it to distinguish the data flow being switched and continue sending packets of the data flow kept on the device, thereby avoiding service interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data flow switching is implemented to increase data throughput and improve communication performance, then productivity is improved, but transmission interruption occurs causing service reliability to deteriorate
Solution Approach 1:
The core network element sends an end marker message to the first access network device before actually switching the data flow. This preliminary action allows the access network device to prepare for the transition by identifying which data flows will be switched and which will be kept, enabling it to continue transmitting kept data flows without interruption while the switching process is arranged in advance.
Solution Approach 2:
The end marker message acts as an intermediary signal between the core network element and the access network device. This intermediary carries indication information that mediates the data flow switching process, allowing the access network device to distinguish between switched and kept data flows and to manage the transition smoothly without dropping active transmissions.
2Productivity
If data flow switching is performed to utilize multiple access network devices, then productivity is improved, but transmission interruption occurs causing loss of time
Solution Approach 1:
The end marker message is sent in advance of the actual data flow switching to allow the access network device to prepare for the transition. This preliminary notification enables the device to identify kept data flows and continue their transmission without interruption, minimizing the time loss that would otherwise occur during the switching process.
Solution Approach 2:
The mechanism ensures that kept data flows continue their transmission uninterrupted during the switching process. By identifying which data flows are kept and maintaining their transmission continuity, the system minimizes idle time and ensures that useful data transmission actions continue without interruption.
3Reliability
If end marker message is sent to indicate data flow switching, then service continuity is improved, but device complexity increases
Solution Approach 1:
The indication information is extracted from the data flow management process and encapsulated in a separate end marker message. This extraction allows the core network element to communicate switching intentions clearly to the access network device without embedding complex control logic within the data packets themselves, simplifying the processing requirements.
Solution Approach 2:
The end marker message serves as a simple intermediary carrier that conveys switching information in a straightforward manner. Rather than implementing complex distributed intelligence throughout the network, the solution uses this intermediary message to carry the essential indication information, reducing overall system complexity while achieving service continuity.
Data Source
AI summary
This disclosure provides methods, apparatuses, and a system for implementing service continuity in a data flow switch procedure. One example method includes that indication information is used to indicate a data flow for which an end marker message is used. In the data flow switch procedure, after receiving the end marker message, a source access network device can correctly identify, based on the indication information, the data flow on which the end marker message works, and can perform different processing on a data flow switched to a target access network device and a data flow kept on the source access network device.