MEC Handover Coordination via Resource Migration
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Solution Overview
Problem
In next-generation wireless communication systems, such as 5G, the integration of Mobile Edge Computing (MEC) entities with base stations complicates handover processes, as base stations involved in handovers may be associated with the same or different MEC entities, leading to challenges in maintaining service connectivity during handovers.
Innovation Solution
The proposed solution involves a method where base stations receive and transmit MEC information, perform handover decisions based on this information, and coordinate with MEC entities to migrate user data and allocate computation resources, ensuring seamless handovers by including MEC requirements in handover requests and responses between base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If base stations are associated with MEC entities to provide edge computing services, then service diversification and functionality are improved, but handover complexity increases due to coordination between base stations and MEC entities
Solution Approach 1:
The patent applies preliminary action by performing MEC resource allocation and user data migration before the handover is completed. The target base station receives MEC resource allocation requests and prepares computational resources in advance, while the MEC entity migrates user data from the source to target ME host before the handover executes, ensuring service continuity without interruption.
Solution Approach 2:
The patent introduces an intermediary mechanism where the MEC entity acts as a mediator between base stations during handover. The MEC entity receives handover requests from base stations, coordinates resource allocation between ME hosts, and manages user data migration, thereby simplifying the interaction complexity between base stations while maintaining service continuity.
2Reliability
If MEC resource allocation is performed during handover, then service connectivity is maintained, but handover time increases due to additional coordination steps
Solution Approach 1:
The patent implements preliminary action by allocating MEC resources and migrating user data before the handover is finalized. The target base station requests and receives MEC resource allocation in advance, and the MEC entity completes user data migration from the source to target ME host before the handover executes, ensuring service connectivity without extending handover time.
Solution Approach 2:
The patent maintains continuity of useful action by ensuring that MEC service provisioning continues uninterrupted during handover. The MEC entity maintains active connections and migrates user data seamlessly between ME hosts, while the base station maintains radio connections, ensuring that service delivery continues without interruption throughout the handover process.
Data Source
AI summary
A handover method is disclosed. The handover method includes receiving, by a first base station, MEC information from a MEC entity, performing, by the first base station, a handover decision based on the MEC information, and transmitting, by the first base station, a handover request to a second base station in response to the handover decision.