Gateway Relocation Control via Communication State Assessment
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Solution Overview
Problem
Existing mobile communication systems face challenges in ensuring continuous communication during packet network gateway relocation, particularly during important communications like voice calls, due to the lack of consideration for actual communication states and importance of data paths, leading to potential service interruptions.
Innovation Solution
A relocation control method and device that collect and analyze communication state information, such as packet transmission rates and TCP session presence, to determine whether to perform packet network gateway relocation, ensuring that important communications are not disrupted by assessing the importance of bearers using Quality of Service Class Identifiers and other criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If packet network gateway relocation is performed without considering communication state, then relocation can be executed simply and quickly, but communication interruption occurs during important services
Solution Approach 1:
The system performs preliminary assessment of communication states before executing gateway relocation. The mobility management node evaluates bearer importance levels and communication quality profiles in advance to determine whether relocation should proceed, preventing interruption of important services while allowing relocation for less critical communications.
Solution Approach 2:
The system implements feedback mechanisms where the mobility management node continuously monitors communication states and bearer importance levels. Based on this feedback, the node dynamically decides whether to permit or prohibit relocation, ensuring communication continuity for important services while enabling relocation when appropriate.
2Adaptability or versatility
If gateway relocation is always permitted, then network flexibility and adaptability are improved, but service quality deteriorates due to communication interruptions
Solution Approach 1:
The system dynamically adjusts gateway relocation permissions based on real-time communication states. The mobility management node evaluates current bearer importance levels and communication quality profiles, permitting relocation when it benefits network adaptability while prohibiting it when service quality would deteriorate, thus achieving both flexibility and reliability.
3Reliability
If communication state assessment is performed before relocation, then service quality is maintained, but relocation processing time and complexity increase
Solution Approach 1:
The system performs partial assessment of communication states by evaluating only critical parameters such as bearer importance levels and communication quality profiles. This selective assessment approach maintains communication continuity for important services while minimizing the time and processing overhead compared to comprehensive state analysis.
Data Source
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AI summary
A control method and device, as well as a system, are provided that make it possible to perform relocation at an appropriate timing without impairing a user's sensory feeling about use of a service. A relocation control device 301 that controls relocation of a packet network gateway 100a which provides functionality as an anchor for ensuring mobility of a mobile terminal in a mobile communication system, includes a bearer information acquisition section 311 that, when an occasion for relocation arises, acquires information to obtain importance and a use state of a communication between a mobile terminal 50 and the packet network gateway 100a, and a relocation determination section 312 that determines whether or not to perform relocation, based on the importance and the use state of the communication.