Inter-EDN Slice Notification for VAL Service Continuity
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Solution Overview
Problem
The existing methods for inter-Edge Data Network (EDN) mobility in wireless communication systems lack a standardized mechanism for maintaining vertical application layer (VAL) service continuity during device mobility, particularly due to the absence of specified interactions between the SNSCE server and client for network slice modifications during EDN transitions.
Innovation Solution
A custom HTTP POST request method is introduced for the SNSCE server to notify the SNSCE client of network slice information, enabling seamless VAL service continuity during inter-EDN mobility by negotiating slice configurations using a custom operation that adheres to existing stage 2 requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a custom HTTP POST request method is introduced for network slice notification, then VAL service continuity during inter-EDN mobility is improved, but device complexity and protocol implementation complexity increase
Solution Approach 1:
The patent introduces an HTTP POST request mechanism as an intermediary communication layer between the source EDN and the VAL client. This standardized HTTP-based notification system acts as a mediator that bridges the gap between network slice management and client notification, enabling reliable service continuity while using a well-established protocol to avoid direct complex custom protocol implementations.
Solution Approach 2:
The patent changes the communication parameter from traditional wireless signaling to HTTP protocol parameters. By using standard HTTP POST requests with JSON-based message structures, the system transforms the notification mechanism into a web-standard communication pattern, which simplifies implementation while maintaining reliability for VAL service continuity during mobility events.
2Reliability
If network slice configuration notification is implemented during mobility, then service continuity is improved, but signaling overhead and network entity interaction complexity increase
Solution Approach 1:
The patent extracts the notification function from the traditional wireless signaling path and separates it into an independent HTTP-based communication channel. By taking out the slice configuration notification from the core wireless protocol stack and implementing it as a separate HTTP POST request mechanism, the system reduces signaling overhead in the wireless interface while maintaining service continuity through this dedicated notification path.
3Ease of operation
If standardized notification mechanism is implemented, then ease of operation and interoperability are improved, but adaptability to specific EDN configurations may be reduced
Solution Approach 1:
The patent implements a universal HTTP POST notification mechanism that can serve multiple EDN configurations and mobility scenarios. By using the widely adopted HTTP protocol with flexible JSON message bodies, the system achieves broad interoperability across different EDN implementations while maintaining the ability to adapt to specific configurations through parameterized message content, thus serving multiple functions with a single standardized approach.
Data Source
AI summary
Various aspects of the present disclosure relate to wireless communication continuity of vertical application layer (VAL) service to a device during inter-edge data network (EDN) mobility. A first network entity includes processor(s) coupled with at least one memory. In response to a mobility of a device indicating impending transfer from a source to a target EDN, the processor(s) are configured to cause the first network entity to identify a first network slice associated with the source EDN. The first network slice supports a VAL service for the device. The processor(s) determines a second network slice associated with the target EDN and capable of supporting the VAL service for the device. The processor(s) configures the first network entity to communicate, to the device, according to a hypertext markup transfer protocol using a custom notify method, a slice configuration associated with the second network slice to maintain continuity of the VAL service.