Mobile Edge Computing Handover Latency Reduction
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Solution Overview
Problem
Current mobile edge computing systems experience data interruption and increased latency during handovers of mobile devices between access network equipment, which can be critical for real-time applications like autonomous driving.
Innovation Solution
A method for performing application handover in mobile edge computing that involves evaluating signal characteristics to establish a connection between mobile edge systems, exchanging application data in advance, and initiating a seamless handover from one base station to another, ensuring minimal latency and data continuity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the application server is deployed physically closer to the base station in a Mobile Edge Computing (MEC) system to reduce User Plane latency, then the latency for payload data packets is reduced, but data interruption and increased latency occur during handover between base stations
Solution Approach 1:
The patent applies preliminary action by establishing a connection between the target MEC system and the mobile device before the handover is completed. The target MEC system is notified in advance of the upcoming handover and begins preparing to receive application data, ensuring service continuity without interruption during the actual handover execution.
Solution Approach 2:
The patent uses an intermediary approach by introducing a notification mechanism that mediates between the source MEC system, target MEC system, and mobile device. This intermediary notification system coordinates the handover process, ensuring that the target MEC system is ready to接管 the application data flow before the handover occurs, thus maintaining service reliability.
2Productivity
If application data is transferred in advance from the first mobile edge system to the second mobile edge system before handover, then latency is reduced and service continuity is maintained, but additional data transfer operations are required after handover
Solution Approach 1:
The patent applies self-service by enabling the target MEC system to autonomously request and receive application data from the source MEC system after handover. The target system independently determines what additional data is needed and initiates the data transfer request, reducing the need for complex centralized coordination while maintaining efficient data transfer.
Solution Approach 2:
The patent uses feedback mechanisms where the target MEC system evaluates whether additional application data needs to be transferred after handover based on the current state of data synchronization. This feedback-driven approach allows the system to dynamically adjust data transfer operations, optimizing productivity while managing complexity through intelligent decision-making.
Data Source
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AI summary
The invention describes a method of performing an application handover for mobile edge computing applications in a mobile communication network, the method comprising the steps of: - evaluating signal characteristics of radio signals sent by base stations (11-1, 12-1) received by a mobile device (100), wherein the mobile device is connected to the mobile communication network via a first base station (11-1), - exchanging data with a first mobile edge system (111) assigned to the first base station (11-1), wherein the first mobile edge system (111) executes an application assigned to the mobile device (100), - establishing a connection between the first mobile edge system (111) and a second mobile edge system (112) depending on the evaluation of the signal characteristics of the radio signals, wherein the second mobile edge system (112) is assigned to a second base station (12-1), - activating execution of the application assigned to the mobile device (100) on the second mobile edge system (112), and - performing a handover from the first base station (11-1) to the second base station (12-1) such that the mobile device (100) is connected with the mobile communication network via the second base station (12-1). The invention further describes a corresponding first mobile edge system (111) and a corresponding network system.