Edge Context Transfer via EES Capability Subscription
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Solution Overview
Problem
The temporary suspension or interruption of application services occurs when a new edge application server replaces the current server during a service area change, affecting transfer continuity.
Innovation Solution
A context transfer method that involves subscribing to EES capability exposure information and coordinating the transfer of application and EEC contexts to ensure seamless switching between edge application servers, reducing service suspension or interruption duration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the EEC context is transferred from the second EES to the first EES, then the service area coverage is improved, but the application service is temporarily suspended or interrupted
Solution Approach 1:
The patent applies preliminary action by having the first EAS subscribe to EES capability exposure information in advance before the EEC context transfer is completed. This subscription is established proactively so that when the context transfer finishes, the service can resume immediately without waiting for capability information requests, thereby reducing service interruption duration while enabling the EES switch for expanded coverage
Solution Approach 2:
The patent maintains continuity of useful action by ensuring that the EAS capability subscription process is initiated before context transfer completion and is already in place when needed. This creates an overlapping timeline where the subscription is established continuously, preventing gaps in service capability information availability during the EES switching process
2Reliability
If the entire EEC context relocation procedure is re-executed, then the context transfer can be completed, but the service suspension duration increases
Solution Approach 1:
The patent applies preliminary action by having the EAS subscribe to EES capability exposure information before the context transfer is fully completed. This advance subscription means that when the context transfer finishes, the capability information is already available, eliminating the need to re-execute the entire relocation procedure and reducing service suspension time
Solution Approach 2:
The patent skips the redundant step of re-executing the entire EEC context relocation procedure by having the capability subscription already in place. Instead of going through the complete relocation process again, the system rushes through the finalization by utilizing the pre-established subscription, thereby completing the transfer quickly with minimal service interruption
Data Source
AI summary
This application provides a context transfer method and a communication apparatus. The method includes: When an edge enabler client context fails to be relocated from a second edge enabler server to a first edge enabler server, a first apparatus sends first information to a first edge application server corresponding to the first edge enabler server, where the first information is used by the first edge application server to subscribe to edge enabler server capability exposure information from the first edge enabler server. In the foregoing technical solution, when an edge enabler client context fails to be transferred, the first apparatus may indicate a target edge application server to subscribe to edge enabler server capability exposure information from a target edge enabler server.