MEC Service Handover With Application And User State Synchronization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
During a handover in multi-access edge computing (MEC) services, terminals face challenges in seamlessly reconnecting to a target edge data network while maintaining continuous service provision, especially in multi-user interactive services where status information of other users needs to be reflected and synchronized.
Innovation Solution
A method is provided for reconnecting a terminal to a target edge data network by synchronizing application status information and user information, ensuring seamless service continuity without disconnection during handover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a terminal is handed over from a source edge data network to a target edge data network, then the terminal can access the target edge data network, but service continuity cannot be maintained without synchronization mechanisms
Solution Approach 1:
The source edge data network transmits application status information to the target edge data network before the handover is completed. This preliminary transmission of status information ensures that when the terminal reconnects to the target edge data network, the service can resume immediately without interruption, thereby maintaining service continuity and eliminating handover interruption time.
Solution Approach 2:
The source edge data network acts as an intermediary by receiving the terminal's reconnection request after handover and facilitating the transmission of application status information to the target edge data network. This intermediary mechanism enables seamless service transition without requiring direct communication between the terminal and target edge data network during the critical handover phase.
2Reliability
If application status information is synchronized during handover, then service continuity is maintained, but system complexity increases due to additional synchronization mechanisms
Solution Approach 1:
The patent extracts only the essential application status information (such as game state, user position, and interaction data) that is necessary for service continuity, rather than synchronizing the entire application environment. This selective extraction reduces the complexity of the synchronization mechanism while maintaining service continuity.
Solution Approach 2:
The source edge data network creates a copy of the application status information and transmits it to the target edge data network. This copying mechanism is simpler than full state migration or complex synchronization protocols, as it involves straightforward data duplication and transmission without requiring intricate coordination between networks.
3Reliability
If user information is updated and synchronized during handover, then multi-user service integrity is maintained, but information loss may occur without proper synchronization
Solution Approach 1:
The target edge data network receives application status information from the source edge data network and uses this feedback to update its local service state. This feedback mechanism ensures that user information is accurately synchronized between networks, maintaining multi-user service integrity and preventing information loss during handover.
Solution Approach 2:
User status information is transmitted from the source to the target edge data network before the handover completes. This preliminary action ensures that all user information is already in place at the target network, preventing any potential information loss and maintaining complete service integrity for multi-user environments.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Provided is a method, performed by a source edge data network, of providing a service in a wireless communication system includes identifying a target edge data network and a handover terminal handed over to the target edge data network among a plurality of terminals provided with the service from the source edge data network; transmitting information about the identified target edge data network to a server; synchronizing status information of an application for providing the service with the target edge data network; and synchronizing user information for each of the plurality of terminals with the target edge data network.